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Toronto Hydro-Electric System Limited EB-2012-0064 Tab 4 Schedule E1.1 ORIGINAL page 1 of 14 Applicant Name Toronto Hydro-Electric System Limited Application Type IRM3 LDC Licence Number ED-2002-0497 Incremental Capital Legend Applied for Effective Date May 1, 2012 Stretch Factor Group III Stretch Factor Value 0.6% Last COS Re-based Year 2011 Last COS OEB Application Number EB-2010-0142 ICM Billing Determinants for Growth - Numerator 2011 Re-Based Forecast ICM Billing Determinants for Growth - Denominator 2010 Audited RRR Incremental Capital Workform DROP-DOWN MENU INPUT FIELD CALCULATION Legend A1.1 LDC Information

Transcript of Legend DROP-DOWN MENU INPUT FIELD CALCULATION · PDF fileLegend DROP-DOWN MENU INPUT FIELD...

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 1 of 14

Applicant Name Toronto Hydro-Electric System Limited

Application Type IRM3

LDC Licence Number ED-2002-0497

Incremental Capital Workform

DROP-DOWN MENU INPUT FIELD CALCULATION Legend

Applied for Effective Date May 1, 2012

Stretch Factor Group III

Stretch Factor Value 0.6%

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

ICM Billing Determinants for Growth - Numerator 2011 Re-Based Forecast

ICM Billing Determinants for Growth - Denominator 2010 Audited RRR

Incremental Capital Workform

DROP-DOWN MENU INPUT FIELD CALCULATION Legend

A1.1 LDC Information

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 2 of 14

Table of ContentsSheet Name Purpose of Sheet

A1.1 LDC Information Enter LDC Data

A2.1 Table of Contents Table of Contents

B1.1 Re-Based Bill Det & Rates Set Up Rate Classes and enter Re-Based Billing Determinants and Tariff Rates

B1.2 Removal of Rate Adders Removal of Rate Adders

B1.3 Re-Based Rev From Rates Calculated Re-Based Revenue From Rates

Incremental Capital Workform

B1.4 Re-Based Rev Req Detailed Re-Based Revenue From Rates

C1.1 Ld Act-Mst Rcent Yr Enter Billing Determinants for most recent actual year

D1.1 Current Revenue from Rates Enter Current Rates to calculate current rate allocation

E1.1 Threshold Parameters Shows calculation of Price Cap and Growth used for incremental capital threshold calculation

E2.1 Threshold Test Input sheet to calculate Threshold and Incremental Capital

E3.1 Summary of I C Projects Summary of Incremental Capital Projects

E4.1 IncrementalCapitalAdjust Shows Calculation of Incremental Capital Revenue Requirement

F1.1 Incr Cap RRider Opt A FV Option A - Calculation of Incremental Capital Rate Rider - Fixed & Variable Split

F1.2 Incr Cap RRider Opt B Var Option B - Calculation of Incremental Capital Rate Rider - Variable Allocation

Z1.0 OEB Control Sheet Not Shown

Incremental Capital Workform

A2.1 Table of Contents

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 3 of 14

Rate Class and Re-Based Billing Determinants & Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Rate Group Rate Class Fixed Metric Vol Metric

Re-based Billed Customers or Connections

Re-based Billed kWh

Re-based Billed kW

Re-based Tariff Service

Charge

Re-based Tariff Distribution

Volumetric Rate kWh

Re-based Tariff Distribution

Volumetric Rate kWA B C D E F

RES Residential Customer kWh 598,508 4,886,977,489 18.25 0.0151RES Residential Urban Customer kWh 24,898 99,791,184 17.00 0.0257

Incremental Capital Workform

Select the appropriate Rate Groups and Rate Classes from the drop-down menus in Columns C and D respectively. Following your selection, all appropriate input cells will be shaded green.

GSLT50 General Service Less Than 50 kW Customer kWh 65,792 2,139,318,076 0 24.30 0.0225GSGT50 General Service 50 to 999 kW Customer kW 13,067 10,116,374,153 26,935,191 35.56 5.5956GSGT50 General Service 1,000 to 4,999 kW Customer kW 514 4,626,928,262 10,587,119 686.46 4.4497

LU Large Use Customer kW 47 2,376,778,323 4,993,733 3,009.11 4.7406SL Street Lighting Connection kW 162,777 110,165,016 322,023 1.30 28.7248

USL Unmetered Scattered Load Connection kWh 1,130 56,231,585 4.84 0.0607USL Unmetered Scattered Load Connection kWh 21,729 0 0.49NA Rate Class 10 NA NANA Rate Class 11 NA NANA Rate Class 12 NA NANA Rate Class 13 NA NANA Rate Class 14 NA NANA Rate Class 15 NA NANA Rate Class 16 NA NANA Rate Class 17 NA NANA Rate Class 18 NA NANA Rate Class 19 NA NANA Rate Class 20 NA NANA Rate Class 21 NA NANA Rate Class 22 NA NANA Rate Class 23 NA NANA Rate Class 24 NA NANA Rate Class 25 NA NA

Incremental Capital Workform

Select the appropriate Rate Groups and Rate Classes from the drop-down menus in Columns C and D respectively. Following your selection, all appropriate input cells will be shaded green.

B1.1 Re-Based Bill Det & Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 4 of 14

Removal of Rate Adders

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Rate ClassRe-based Tariff Service Charge

Re-based Tariff Distribution Volumetric Rate kWh

Re-based Tariff Distribution Volumetric Rate kW

Service Charge Rate Adders

Distribution Volumetric kWh Rate Adders

Distribution Volumetric kW Rate Adders

Re-based Base Service Charge

Re-based Base Distribution Volumetric Rate kWh

Re-based Base Distribution Volumetric Rate kW

A B C D E F H = A - D I = B - E J = C - FResidential 18.25 0.0151 0.0000 0.00 0.0000 0.0000 18.25 0.0151 0.0000Residential Urban 17.00 0.0257 0.0000 0.00 0.0000 0.0000 17.00 0.0257 0.0000General Service Less Than 50 kW 24.30 0.0225 0.0000 0.00 0.0000 0.0000 24.30 0.0225 0.0000General Service 50 to 999 kW 35.56 0.0000 5.5956 0.00 0.0000 0.0000 35.56 0.0000 5.5956General Service 1,000 to 4,999 kW 686.46 0.0000 4.4497 0.00 0.0000 0.0000 686.46 0.0000 4.4497Large Use 3,009.11 0.0000 4.7406 0.00 0.0000 0.0000 3,009.11 0.0000 4.7406Street Lighting 1.30 0.0000 28.7248 0.00 0.0000 0.0000 1.30 0.0000 28.7248Unmetered Scattered Load 4.84 0.0607 0.0000 0.00 0.0000 0.0000 4.84 0.0607 0.0000Unmetered Scattered Load 0.49 0.0000 0.0000 0.00 0.0000 0.0000 0.49 0.0000 0.0000

Incremental Capital Workform

B1.2 Removal of Rate Adders

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 5 of 14

Calculated Re-Based Revenue From Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Re-based Billed

Customers or Re-based Re-based Re-based Base

Re-based Base Distribution Volumetric

Re-based Base Distribution Volumetric Service Charge

Distribution Volumetric

Rate Revenue

Distribution Volumetric

Rate Revenue

Revenue Requirement

Incremental Capital Workform

Rate ClassCustomers or Connections

Re-based Billed kWh

Re-based Billed kW

Re-based Base Service Charge

Volumetric Rate kWh

Volumetric Rate kW

Service Charge Revenue

Revenue kWh

Revenue kW

Requirement from Rates

A B C D E F G = A * D *12 H = B * E I = C * F J = G + H + IResidential 598,508 4,886,977,489 0 18.25 0.0151 0.0000 131,073,252 73,646,751 0 204,720,003Residential Urban 24,898 99,791,184 0 17.00 0.0257 0.0000 5,079,192 2,559,644 0 7,638,836General Service Less Than 50 kW 65,792 2,139,318,076 0 24.30 0.0225 0.0000 19,184,993 48,070,477 0 67,255,470General Service 50 to 999 kW 13,067 10,116,374,153 26,935,191 35.56 0.0000 5.5956 5,575,758 0 150,718,556 156,294,314General Service 1,000 to 4,999 kW 514 4,626,928,262 10,587,119 686.46 0.0000 4.4497 4,234,085 0 47,109,505 51,343,590Large Use 47 2,376,778,323 4,993,733 3,009.11 0.0000 4.7406 1,697,138 0 23,673,292 25,370,430Street Lighting 162,777 110,165,016 322,023 1.30 0.0000 28.7248 2,539,322 0 9,250,042 11,789,364Unmetered Scattered Load 1,130 56,231,585 0 4.84 0.0607 0.0000 65,611 3,413,257 0 3,478,868Unmetered Scattered Load 21,729 0 0 0.49 0.0000 0.0000 127,767 0 0 127,767

169,577,117 127,690,129 230,751,395 528,018,642O P Q R

Incremental Capital Workform

B1.3 Re-Based Rev From Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 6 of 14

Detailed Re-Based Revenue From Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Applicants Rate BaseAverage Net Fixed Assets

Gross Fixed Assets - Re-based Opening 4,183,572,075$ AAdd: CWIP Re-based Opening 204,719,106$ BRe-based Capital Additions 376,263,596$ CRe-based Capital Disposals DRe-based Capital Retirements EDeduct: CWIP Re-based Closing 232,060,508-$ FGross Fixed Assets - Re-based Closing 4,532,494,269$ GAverage Gross Fixed Assets 4,358,033,172$ H = ( A + G ) / 2

Accumulated Depreciation - Re-based Opening 2,285,733,698$ IRe-based Depreciation Expense 138,815,781$ JRe-based Disposals 2,807,234$ KRe-based Retirements LAccumulated Depreciation - Re-based Closing 2,427,356,713$ MAverage Accumulated Depreciation 2,356,545,206$ N = ( I + M ) / 2

Average Net Fixed Assets 2,001,487,967$ O = H - N

Working Capital AllowanceWorking Capital Allowance Base 2,479,952,766$ PWorking Capital Allowance Rate 12.0% Q

$

Last Rate Re-based Amount

Incremental Capital Workform

Working Capital Allowance 296,739,314$ R = P * Q

Rate Base 2,298,227,281$ S = O + R

Return on Rate BaseDeemed ShortTerm Debt % 4.00% T 91,929,091$ W = S * TDeemed Long Term Debt % 56.00% U 1,287,007,277$ X = S * UDeemed Equity % 40.00% V 919,290,912$ Y = S * V

Short Term Interest 2.46% Z 2,261,456$ AC = W * ZLong Term Interest 5.37% AA 69,112,291$ AD = X * AAReturn on Equity 9.58% AB 88,068,069$ AE = Y * ABReturn on Rate Base 159,441,816$ AF = AC + AD + AE

Distribution ExpensesOM&A Expenses 231,014,224$ AGAmortization 138,815,781$ AHOntario Capital Tax (F1.1 Z-Factor Tax Changes) 6,802,382$ AIGrossed Up PILs (F1.1 Z-Factor Tax Changes) 11,791,223$ AJLow Voltage AKTransformer Allowance 11,479,842$ AL

-$ AMANAO

399,903,452$ AP = SUM ( AG : AO )

Revenue OffsetsSpecific Service Charges 7,580,526-$ AQLate Payment Charges 4,900,000-$ AROther Distribution Income 7,240,556-$ ASOther Income and Deductions 6,300,000-$ AT 26,021,082-$ AU = SUM ( AQ : AT )

Revenue Requirement from Distribution Rates 533,324,186$ AV = AF + AP + AU

Rate Classes RevenueRate Classes Revenue - Total (B1.1 Re-based Revenue - Gen) 528,018,642$ AW

Difference 5,305,544$ AZ = AV - AW

Difference (Percentage - should be less than 1%) 1.00% BA = AZ / AW

Incremental Capital Workform

B1.4 Re-Based Rev Req

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 7 of 14

Load Actual - Most Recent Year

Rate Class Fixed Metric Vol Metric

Billed Customers or Connections Billed kWh Billed kW

Base Service Charge

Base Distribution

Volumetric Rate kWh

Base Distribution

Volumetric Rate kW

Service Charge Revenue

Distribution Volumetric Rate

Revenue kWh

Distribution Volumetric Rate

Revenue kW

Total Revenue by Rate Class

A B C D E F G = A * D * 12 H = B * E I = C * F J = G + H + IResidential Customer kWh 591,496 5,105,974,275 0 $18.25 $0.0151 $0.0000 $129,537,624 $76,947,032 $0 $206,484,656Residential Urban Customer kWh 24,898 99,791,184 0 $17.00 $0.0257 $0.0000 $5,079,192 $2,559,644 $0 $7,638,836General Service Less Than 50 kW Customer kWh 65,799 2,095,343,918 0 $24.30 $0.0225 $0.0000 $19,186,988 $47,082,378 $0 $66,269,366General Service 50 to 999 kW Customer kW 12,873 10,189,051,346 26,712,248 $35.56 $0.0000 $5.5956 $5,493,167 $0 $149,471,055 $154,964,221General Service 1,000 to 4,999 kW Customer kW 509 4,828,382,733 10,972,419 $686.46 $0.0000 $4.4497 $4,192,898 $0 $48,823,974 $53,016,871Large Use Customer kW 47 2,263,227,585 5,267,224 $3,009.11 $0.0000 $4.7406 $1,697,138 $0 $24,969,801 $26,666,940Street Lighting Connection kW 162,964 112,727,603 321,995 $1.30 $0.0000 $28.7248 $2,542,238 $0 $9,249,232 $11,791,471 aaaUnmetered Scattered Load Connection kWh 1,107 52,097,299 0 $4.84 $0.0607 $0.0000 $64,295 $3,162,306 $0 $3,226,601Unmetered Scattered Load Connection kWh 12,159 0 0 $0.49 $0.0000 $0.0000 $71,495 $0 $0 $71,495

$167,865,035 $129,751,360 $232,514,062 $530,130,457

Incremental Capital Workform

C1.1 Ld Act-Mst Rcent Yr

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 8 of 14

Current Revenue from Rates

Rate Class Fixed Metric Vol MetricCurrent Base

Service Charge

Current Base Distribution Volumetric

Rate kWh

Current Base Distribution

Volumetric Rate kW

Re-based Billed Customers or Connections

Re-based Billed kWh

Re-based Billed kW

Current Base Service Charge

Revenue

Current Base Distribution Volumetric Rate kWh

Revenue

Current Base Distribution Volumetric Rate kW

RevenueTotal Current Base Revenue

Service Charge % Total Revenue

Distribution Volumetric Rate % Total Revenue

Distribution Volumetric Rate % Total Revenue

Total % Revenue

A B C D E F G = A * D *12 H = B * E I = C * F J = G + H + I L = G / $K M = H / $K N = I / $K O = J / $KResidential Customer kWh 18.25 0.0151 598,508 4,886,977,489 0 131,073,252 73,646,751 0 204,720,003 24.9% 14.0% 0.0% 38.9%Residential Urban Customer kWh 6.83 0.0257 24,898 99,791,184 0 2,040,640 2,559,644 0 4,600,284 0.4% 0.5% 0.0% 0.9%General Service Less Than 50 kW Customer kWh 24.30 0.0225 65,792 2,139,318,076 0 19,184,993 48,070,477 0 67,255,470 3.6% 9.1% 0.0% 12.8%General Service 50 to 999 kW Customer kW 35.56 5.5956 13,067 10,116,374,153 26,935,191 5,575,758 0 150,718,556 156,294,314 1.1% 0.0% 28.7% 29.7%General Service 1,000 to 4,999 kW Customer kW 686.46 4.4497 514 4,626,928,262 10,587,119 4,234,085 0 47,109,505 51,343,590 0.8% 0.0% 9.0% 9.8%Large Use Customer kW 3,009.11 4.7406 47 2,376,778,323 4,993,733 1,697,138 0 23,673,292 25,370,430 0.3% 0.0% 4.5% 4.8%Street Lighting Connection kW 1.30 28.7248 162,777 110,165,016 322,023 2,539,322 0 9,250,042 11,789,364 0.5% 0.0% 1.8% 2.2%Unmetered Scattered Load Connection kWh 0.49 0.0607 1,130 56,231,585 0 6,642 3,413,257 0 3,419,900 0.0% 0.6% 0.0% 0.7%Unmetered Scattered Load Connection kWh 4.84 21,729 0 0 1,262,025 0 0 1,262,025 0.2% 0.0% 0.0% 0.2%

167,613,855 127,690,129 230,751,395 526,055,380 31.9% 24.3% 43.9% 100.0%K

Incremental Capital Workform

This sheet is used to determine the applicants most current allocation of revenues (after the most recent revenue cost ratio adjustment, if applicable) to be used to calculate the incremental capital rate riders.

Incremental Capital Workform

This sheet is used to determine the applicants most current allocation of revenues (after the most recent revenue cost ratio adjustment, if applicable) to be used to calculate the incremental capital rate riders.

D1.1 Current Revenue from Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 9 of 14

Threshold ParametersPrice Cap Index

Price Escalator (GDP-IPI) 2.00%

Less Productivity Factor -0.72%

Less Stretch Factor -0.60%

Price Cap Index 0.68%

Growth

ICM Billing Determinants for Growth - Numerator : 2011 Re-Based Forecast 528,018,642$ A

ICM Billing Determinants for Growth - Denominator : 2010 Audited RRR 530,130,457$ B

Growth -0.40% C = A / B

Incremental Capital Workform

Growth -0.40% C = A / B

Incremental Capital Workform

E1.1 Threshold Parameters

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 10 of 14

Threshold Test

Year 2011

Price Cap Index 0.68% AGrowth -0.40% BDead Band 20% C

Average Net Fixed AssetsGross Fixed Assets Opening 4,183,572,075$

Add: CWIP Opening 204,719,106$ Capital Additions 376,263,596$ Capital Disposals -$ Capital Retirements -$ Deduct: CWIP Closing 232,060,508-$

Gross Fixed Assets - Closing 4,532,494,269$

Average Gross Fixed Assets 4,358,033,172$

Incremental Capital Workform

Accumulated Depreciation - Opening 2,285,733,698$ Depreciation Expense 138,815,781$ DDisposals 2,807,234$ Retirements

Accumulated Depreciation - Closing 2,427,356,713$

Average Accumulated Depreciation 2,356,545,206$

Average Net Fixed Assets 2,001,487,967$ E

Working Capital AllowanceWorking Capital Allowance Base 2,479,952,766$ Working Capital Allowance Rate 12%

Working Capital Allowance 296,739,314$ F

Rate Base 2,298,227,281$ G = E + F

Depreciation D 138,815,781$ H

Threshold Test 124.62% I = 1 + ( G / H) * ( B + A * ( 1 + B)) + C

Threshold CAPEX 172,989,465$ J = H *I

Incremental Capital Workform

E2.1 Threshold Test

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 11 of 14

Summary of Incremental Capital Projects (ICPs)

Number of ICPs1

Project ID # Incremental Capital Non-Discretionary Project Description

Incremental Capital CAPEX

Amortization Expense CCA

ICP 1 Summary of Projects (please see Schedule E01-2) 275,754,831 8,770,639 20,346,055

275,754,831 8,770,639 20,346,055

Incremental Capital Workform

E3.1 Summary of I C Projects

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 12 of 14

Incremental Capital Adjustment

Current Revenue Requirement

Current Revenue Requirement - Total 533,324,186$ A

Return on Rate BaseIncremental Capital CAPEX 275,754,831$ BDepreciation Expense 8,770,639$ CIncremental Capital CAPEX to be included in Rate Base 266,984,192$ D = B - C

Deemed ShortTerm Debt % 4.0% E 10,679,368$ G = D * EDeemed Long Term Debt % 56.0% F 149,511,148$ H = D * F

Short Term Interest 2.46% I 262,712$ K = G * ILong Term Interest 5.37% J 8,028,749$ L = H * J

Return on Rate Base - Interest 8,291,461$ M = K + L

Deemed Equity % 40.0% N 106,793,677$ P = D * N

Return on Rate Base -Equity 9.58% O 10,230,834$ Q = P * O

Return on Rate Base - Total 18,522,295$ R = M + Q

Amortization Expense

Amortization Expense - Incremental C 8,770,639$ S

Incremental Capital W

Grossed up PIL's

Regulatory Taxable Income O 10,230,834$ T

Add Back Amortization Expense S 8,770,639$ U

Deduct CCA 20,346,055$ V

Incremental Taxable Income 1,344,581-$ W = T + U - V

Current Tax Rate (F1.1 Z-Factor Tax Changes) 26.4% X

PIL's Before Gross Up 354,970-$ Y = W * X

Incremental Grossed Up PIL's 482,296-$ Z = Y / ( 1 - X )

Ontario Capital TaxIncremental Capital CAPEX 275,754,831$ AA

Less : Available Capital Exemption (if any) -$ AB

Incremental Capital CAPEX subject to OCT 275,754,831$ AC = AA - AB

Ontario Capital Tax Rate (F1.1 Z-Factor Tax Changes) 0.000% AD

Incremental Ontario Capital Tax -$ AE = AC * AD

Incremental Revenue RequirementReturn on Rate Base - Total Q 18,522,295$ AFAmortization Expense - Total S 8,770,639$ AGIncremental Grossed Up PIL's Z 482,296-$ AHIncremental Ontario Capital Tax AE -$ AI

Incremental Revenue Requirement 26,810,639$ AJ = AF + AG + AH + AI

Incremental Capital W

E4.1 IncrementalCapitalAdjust

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 13 of 14

Calculation of Incremental Capital Rate Rider - Option A Fixed and Variable

Rate Class

Service Charge % Revenue

Distribution Volumetric

Rate % Revenue

kWh

Distribution Volumetric

Rate % Revenue

kW

Service Charge

Revenue

Distribution Volumetric

Rate Revenue kWh

Distribution Volumetric Rate

Revenue kW

Total Revenue by Rate Class

Billed Customers

or Connections Billed kWh Billed kW

Service Charge Rate

Rider

Distribution Volumetric Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

A B C D = $N * A E = $N * B F = $N * C G = D + E + F H I J K = D / H / 12 L = E / I M = F / JResidential 24.9% 14.0% 0.0% ########### 3,753,438.35$ -$ 10,433,643.05$ 598,508 4,886,977,489 0 $0.930119 $0.000768Residential Urban 0.4% 0.5% 0.0% 104,002.10$ 130,453.35$ -$ 234,455.45$ 24,898 99,791,184 0 $0.348094 $0.001307General Service Less Than 50 kW 3.6% 9.1% 0.0% 977,771.41$ 2,449,932.56$ -$ 3,427,703.97$ 65,792 2,139,318,076 0 $1.238460 $0.001145General Service 50 to 999 kW 1.1% 0.0% 28.7% 284,170.90$ -$ 7,681,436.09$ 7,965,606.99$ 13,067 10,116,374,153 26,935,191 $1.812331 $0.000000 $0.285182General Service 1,000 to 4,999 kW 0.8% 0.0% 9.0% 215,791.98$ -$ 2,400,956.18$ 2,616,748.16$ 514 4,626,928,262 10,587,119 $34.985729 $0.000000 $0.226781Large Use 0.3% 0.0% 4.5% 86,495.37$ -$ 1,206,519.52$ 1,293,014.89$ 47 2,376,778,323 4,993,733 $153.360586 $0.000000 $0.241607Street Lighting 0.5% 0.0% 1.8% 129,417.62$ -$ 471,432.38$ 600,850.01$ 162,777 110,165,016 322,023 $0.066255 $0.000000 $1.463972Unmetered Scattered Load 0.0% 0.6% 0.0% 338.53$ 173,958.12$ -$ 174,296.66$ 1,130 56,231,585 0 $0.024973 $0.003094Unmetered Scattered Load 0.2% 0.0% 0.0% 64,319.66$ -$ -$ 64,319.66$ 21,729 0 0 $0.246673

########### 6,507,782.38$ 11,760,344.18$ 26,810,638.84$ -

Enter the above rate riders onto "Sheet 14. Proposed Rate_Riders" in the 2012 OEB IRM3 Rate

Generator as an "Rate Rider for Incremental Capital"

Incremental Capital Workform

F1.1 Incr Cap RRider Opt A FV

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E1.1

ORIGINALpage 14 of 14

Calculation of Incremental Capital Rate Rider - Option B Variable

Rate ClassTotal Revenue $ by Rate Class

Total Revenue % by Rate Class

Total Incremental Capital $ by Rate Class Billed kWh Billed kW

Distribution Volumetric

Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

A B = A / $H C = $I * B D E F = C / D G = C / EResidential $204,720,003 38.92% $10,433,643 4,886,977,489 0 $0.0021Residential Urban $4,600,284 0.87% $234,455 99,791,184 0 $0.0023General Service Less Than 50 kW $67,255,470 12.78% $3,427,704 2,139,318,076 0 $0.0016General Service 50 to 999 kW $156,294,314 29.71% $7,965,607 ############ 26,935,191 $0.2957General Service 1,000 to 4,999 kW $51,343,590 9.76% $2,616,748 4,626,928,262 10,587,119 $0.2472L U $25 370 430 4 82% $1 293 015

Incremental Capital Workform

Large Use $25,370,430 4.82% $1,293,015 2,376,778,323 4,993,733 $0.2589Street Lighting $11,789,364 2.24% $600,850 110,165,016 322,023 $1.8659Unmetered Scattered Load $3,419,900 0.65% $174,297 56,231,585 0 $0.0031Unmetered Scattered Load $1,262,025 0.24% $64,320 0 0

$526,055,380 100.00% $26,810,639H I

Enter the above rate riders onto "Sheet 14. Proposed Rate_Riders" in the 2012 OEB IRM3 Rate Generator as an "Rate

Rider for Incremental Capital"

Incremental Capital Workform

F1.2 Incr Cap RRider Opt B Var

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Toronto Hydro‐Electric System LimitedEB‐2012‐0064

Tab 4Schedule E1.2

ORIGINALpage 1 of 1

ICM Values Calculation ‐ 2012

Net Fixed Asset Amort. Exp CCA01 Underground Infrastructure 46,937,673 1,514,619 3,755,01402 Paper Insulated Lead Covered Cable ‐ Piece Outs and Leakers 17,323,056 435,394 1,385,84403 Handwell Replacement 12,007,529 300,188 960,60204 Overhead Infrastructure 29,426,642 770,352 2,354,13105 Box Construction 10,201,306 263,295 816,10406 Rear Lot Construction 34,365,703 971,829 2,749,25607 Polymer SMD ‐ 20 Switches 3,058,194 91,349 244,65608 Scadamate R1 Switches 2,858,752 94,252 228,70009 Network Vault & Roofs 13,565,230 468,264 1,085,21810 Fibertop Network Units 8,589,925 412,117 687,19411 Automatic Transfer Switches (ATS) % Reverse Power Breakers (RPB) 3,272,416 147,002 261,79312 Stations Power Transformers 1,299,579 40,612 103,96614 Stations Circuit Breakers 1,371,522 45,717 109,10515 Stations Control & Communication Systems 1,149,495 76,633 229,89916 Downtown Station Load Transfers 1,750,646 45,876 140,05217 Bremner Transformer Station 31,732,860 736,900 1,938,35518 Hydro One Capital Contributions 25,280,047 1,011,202 020 Metering 5,619,570 353,717 449,56621 Externally‐Initiated Plant Relocations and Expansions 24,268,546 739,900 1,941,48422 GRID SOLUTION (Prorated) 1,676,140 251,421 905,116

22 Grid Solutions 2,398,000 359,700 1,294,920

22 GRID SOLUTION (Prorated) 721,860 108,279 389,80419 Feeder Automation 7,820,666 254,014 625,65313 Stations Switchgear 19,349,949 501,114 1,564,710PCI Total 145,096,991 0 0

Total 448,744,297 9,634,046 22,926,222

Threshold CAPEX 172,989,465$           

Net Fixed Asset Amort. Exp CCAValues Above Threshold for ICM Model 275,754,831 8,770,639 20,346,055Threshold Values 172,989,465 863,407 2,580,167

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Toronto Hydro‐Electric System LimitedEB‐2012‐0064

Tab 4Schedule E1.3

ORIGINALpage 1 of 1

Calculation of ICM Rate Rider on Days of Service Basis

Rate Class

Service Charge Rate

Rider

Distribution Volumetric Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

Service Charge Rate Rider (DOS)

Distribution Volumetric

Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider (DOS)

K = D / H / 12 L = E / I M = F / J  Residential $0.9301 $0.000768 $0.917378 $0.000768Residential Urban $0.3481 $0.001307 $0.343326 $0.001307General Service Less Than 50 kW $1.2385 $0.001145 $1.221495 $0.001145General Service 50 to 999 kW $1.8123 $0.000000 $0.2852 $1.787505 $0.281275General Service 1,000 to 4,999 kW $34.9857 $0.000000 $0.2268 $34.506472 $0.223674Large Use $153.3606 $0.000000 $0.2416 $151.259756 $0.238297Street Lighting $0.0663 $0.000000 $1.4640 $0.065347 $1.443918Unmetered Scattered Load $0.0250 $0.003094 $0.024631 $0.003094Unmetered Scattered Load $0.2467 $0.243294

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 1 of 14

Applicant Name Toronto Hydro-Electric System Limited

Application Type IRM3

LDC Licence Number ED-2002-0497

Incremental Capital Workform

DROP-DOWN MENU INPUT FIELD CALCULATION Legend

Applied for Effective Date May 1, 2012

Stretch Factor Group III

Stretch Factor Value 0.6%

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

ICM Billing Determinants for Growth - Numerator 2011 Re-Based Forecast

ICM Billing Determinants for Growth - Denominator 2010 Audited RRR

Incremental Capital Workform

DROP-DOWN MENU INPUT FIELD CALCULATION Legend

A1.1 LDC Information

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 2 of 14

Table of ContentsSheet Name Purpose of Sheet

A1.1 LDC Information Enter LDC Data

A2.1 Table of Contents Table of Contents

B1.1 Re-Based Bill Det & Rates Set Up Rate Classes and enter Re-Based Billing Determinants and Tariff Rates

B1.2 Removal of Rate Adders Removal of Rate Adders

B1.3 Re-Based Rev From Rates Calculated Re-Based Revenue From Rates

Incremental Capital Workform

B1.4 Re-Based Rev Req Detailed Re-Based Revenue From Rates

C1.1 Ld Act-Mst Rcent Yr Enter Billing Determinants for most recent actual year

D1.1 Current Revenue from Rates Enter Current Rates to calculate current rate allocation

E1.1 Threshold Parameters Shows calculation of Price Cap and Growth used for incremental capital threshold calculation

E2.1 Threshold Test Input sheet to calculate Threshold and Incremental Capital

E3.1 Summary of I C Projects Summary of Incremental Capital Projects

E4.1 IncrementalCapitalAdjust Shows Calculation of Incremental Capital Revenue Requirement

F1.1 Incr Cap RRider Opt A FV Option A - Calculation of Incremental Capital Rate Rider - Fixed & Variable Split

F1.2 Incr Cap RRider Opt B Var Option B - Calculation of Incremental Capital Rate Rider - Variable Allocation

Z1.0 OEB Control Sheet Not Shown

Incremental Capital Workform

A2.1 Table of Contents

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 3 of 14

Rate Class and Re-Based Billing Determinants & Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Rate Group Rate Class Fixed Metric Vol Metric

Re-based Billed Customers or Connections

Re-based Billed kWh

Re-based Billed kW

Re-based Tariff Service

Charge

Re-based Tariff Distribution

Volumetric Rate kWh

Re-based Tariff Distribution

Volumetric Rate kWA B C D E F

RES Residential Customer kWh 598,508 4,886,977,489 18.25 0.0151RES Residential Urban Customer kWh 24,898 99,791,184 17.00 0.0257

GSLT50 General Service Less Than 50 kW Customer kWh 65,792 2,139,318,076 0 24.30 0.0225

Incremental Capital Workform

Select the appropriate Rate Groups and Rate Classes from the drop-down menus in Columns C and D respectively. Following your selection, all appropriate input cells will be shaded green.

GSLT50 General Service Less Than 50 kW Customer kWh 65,792 2,139,318,076 0 24.30 0.0225GSGT50 General Service 50 to 999 kW Customer kW 13,067 10,116,374,153 26,935,191 35.56 5.5956GSGT50 General Service 1,000 to 4,999 kW Customer kW 514 4,626,928,262 10,587,119 686.46 4.4497

LU Large Use Customer kW 47 2,376,778,323 4,993,733 3,009.11 4.7406SL Street Lighting Connection kW 162,777 110,165,016 322,023 1.30 28.7248

USL Unmetered Scattered Load Connection kWh 1,130 56,231,585 4.84 0.0607USL Unmetered Scattered Load Connection kWh 21,729 0 0.49NA Rate Class 10 NA NANA Rate Class 11 NA NANA Rate Class 12 NA NANA Rate Class 13 NA NANA Rate Class 14 NA NANA Rate Class 15 NA NANA Rate Class 16 NA NANA Rate Class 17 NA NANA Rate Class 18 NA NANA Rate Class 19 NA NANA Rate Class 20 NA NANA Rate Class 21 NA NANA Rate Class 22 NA NANA Rate Class 23 NA NANA Rate Class 24 NA NANA Rate Class 25 NA NA

Incremental Capital Workform

Select the appropriate Rate Groups and Rate Classes from the drop-down menus in Columns C and D respectively. Following your selection, all appropriate input cells will be shaded green.

B1.1 Re-Based Bill Det & Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 4 of 14

Removal of Rate Adders

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Rate ClassRe-based Tariff Service Charge

Re-based Tariff Distribution Volumetric

Rate kWh

Re-based Tariff Distribution Volumetric

Rate kWService Charge

Rate Adders

Distribution Volumetric kWh Rate

Adders

Distribution Volumetric kW Rate

AddersRe-based Base Service Charge

Re-based Base Distribution Volumetric

Rate kWh

Re-based Base Distribution Volumetric

Rate kWA B C D E F H = A - D I = B - E J = C - F

Residential 18.25 0.0151 0.0000 0.00 0.0000 0.0000 18.25 0.0151 0.0000Residential Urban 17.00 0.0257 0.0000 0.00 0.0000 0.0000 17.00 0.0257 0.0000General Service Less Than 50 kW 24.30 0.0225 0.0000 0.00 0.0000 0.0000 24.30 0.0225 0.0000General Service 50 to 999 kW 35.56 0.0000 5.5956 0.00 0.0000 0.0000 35.56 0.0000 5.5956General Service 1,000 to 4,999 kW 686.46 0.0000 4.4497 0.00 0.0000 0.0000 686.46 0.0000 4.4497Large Use 3,009.11 0.0000 4.7406 0.00 0.0000 0.0000 3,009.11 0.0000 4.7406Street Lighting 1.30 0.0000 28.7248 0.00 0.0000 0.0000 1.30 0.0000 28.7248Unmetered Scattered Load 4.84 0.0607 0.0000 0.00 0.0000 0.0000 4.84 0.0607 0.0000Unmetered Scattered Load 0.49 0.0000 0.0000 0.00 0.0000 0.0000 0.49 0.0000 0.0000

Incremental Capital Workform

B1.2 Removal of Rate Adders

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 5 of 14

Calculated Re-Based Revenue From Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Re-based Billed

Customers or Re-based Re-based Re-based Base

Re-based Base Distribution Volumetric

Re-based Base Distribution Volumetric Service Charge

Distribution Volumetric

Rate Revenue

Distribution Volumetric

Rate Revenue

Revenue Requirement

Incremental Capital Workform

Rate ClassCustomers or Connections

Re-based Billed kWh

Re-based Billed kW

Re-based Base Service Charge

Volumetric Rate kWh

Volumetric Rate kW

Service Charge Revenue

Revenue kWh

Revenue kW

Requirement from Rates

A B C D E F G = A * D *12 H = B * E I = C * F J = G + H + IResidential 598,508 4,886,977,489 0 18.25 0.0151 0.0000 131,073,252 73,646,751 0 204,720,003Residential Urban 24,898 99,791,184 0 17.00 0.0257 0.0000 5,079,192 2,559,644 0 7,638,836General Service Less Than 50 kW 65,792 2,139,318,076 0 24.30 0.0225 0.0000 19,184,993 48,070,477 0 67,255,470General Service 50 to 999 kW 13,067 10,116,374,153 26,935,191 35.56 0.0000 5.5956 5,575,758 0 150,718,556 156,294,314General Service 1,000 to 4,999 kW 514 4,626,928,262 10,587,119 686.46 0.0000 4.4497 4,234,085 0 47,109,505 51,343,590Large Use 47 2,376,778,323 4,993,733 3,009.11 0.0000 4.7406 1,697,138 0 23,673,292 25,370,430Street Lighting 162,777 110,165,016 322,023 1.30 0.0000 28.7248 2,539,322 0 9,250,042 11,789,364Unmetered Scattered Load 1,130 56,231,585 0 4.84 0.0607 0.0000 65,611 3,413,257 0 3,478,868Unmetered Scattered Load 21,729 0 0 0.49 0.0000 0.0000 127,767 0 0 127,767

169,577,117 127,690,129 230,751,395 528,018,642O P Q R

Incremental Capital Workform

B1.3 Re-Based Rev From Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 6 of 14

Detailed Re-Based Revenue From Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Applicants Rate BaseAverage Net Fixed Assets

Gross Fixed Assets - Re-based Opening 4,183,572,075$ AAdd: CWIP Re-based Opening 204,719,106$ BRe-based Capital Additions 376,263,596$ CRe-based Capital Disposals DRe-based Capital Retirements EDeduct: CWIP Re-based Closing 232,060,508-$ FGross Fixed Assets - Re-based Closing 4,532,494,269$ GAverage Gross Fixed Assets 4,358,033,172$ H = ( A + G ) / 2

Accumulated Depreciation - Re-based Opening 2,285,733,698$ IRe-based Depreciation Expense 138,815,781$ JRe-based Disposals 2,807,234$ KRe-based Retirements LAccumulated Depreciation - Re-based Closing 2,427,356,713$ MAverage Accumulated Depreciation 2,356,545,206$ N = ( I + M ) / 2

Average Net Fixed Assets 2,001,487,967$ O = H - N

Working Capital AllowanceWorking Capital Allowance Base 2,479,952,766$ PWorking Capital Allowance Rate 12.0% Q

$

Last Rate Re-based Amount

Incremental Capital Workform

Working Capital Allowance 296,739,314$ R = P * Q

Rate Base 2,298,227,281$ S = O + R

Return on Rate BaseDeemed ShortTerm Debt % 4.00% T 91,929,091$ W = S * TDeemed Long Term Debt % 56.00% U 1,287,007,277$ X = S * UDeemed Equity % 40.00% V 919,290,912$ Y = S * V

Short Term Interest 2.46% Z 2,261,456$ AC = W * ZLong Term Interest 5.37% AA 69,112,291$ AD = X * AAReturn on Equity 9.58% AB 88,068,069$ AE = Y * ABReturn on Rate Base 159,441,816$ AF = AC + AD + AE

Distribution ExpensesOM&A Expenses 231,014,224$ AGAmortization 138,815,781$ AHOntario Capital Tax (F1.1 Z-Factor Tax Changes) 6,802,382$ AIGrossed Up PILs (F1.1 Z-Factor Tax Changes) 11,791,223$ AJLow Voltage AKTransformer Allowance 11,479,842$ AL

-$ AMANAO

399,903,452$ AP = SUM ( AG : AO )

Revenue OffsetsSpecific Service Charges 7,580,526-$ AQLate Payment Charges 4,900,000-$ AROther Distribution Income 7,240,556-$ ASOther Income and Deductions 6,300,000-$ AT 26,021,082-$ AU = SUM ( AQ : AT )

Revenue Requirement from Distribution Rates 533,324,186$ AV = AF + AP + AU

Rate Classes RevenueRate Classes Revenue - Total (B1.1 Re-based Revenue - Gen) 528,018,642$ AW

Difference 5,305,544$ AZ = AV - AW

Difference (Percentage - should be less than 1%) 1.00% BA = AZ / AW

Incremental Capital Workform

B1.4 Re-Based Rev Req

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 7 of 14

Load Actual - Most Recent Year

Rate Class Fixed Metric Vol MetricBilled Customers or Connections Billed kWh Billed kW

Base Service Charge

Base Distribution Volumetric Rate

kWh

Base Distribution Volumetric Rate

kWService Charge

Revenue

Distribution Volumetric Rate Revenue

kWh

Distribution Volumetric Rate Revenue

kWTotal Revenue by Rate Class

A B C D E F G = A * D * 12 H = B * E I = C * F J = G + H + IResidential Customer kWh 591,496 5,105,974,275 0 $18.25 $0.0151 $0.0000 $129,537,624 $76,947,032 $0 $206,484,656Residential Urban Customer kWh 24,898 99,791,184 0 $17.00 $0.0257 $0.0000 $5,079,192 $2,559,644 $0 $7,638,836General Service Less Than 50 kW Customer kWh 65,799 2,095,343,918 0 $24.30 $0.0225 $0.0000 $19,186,988 $47,082,378 $0 $66,269,366General Service 50 to 999 kW Customer kW 12,873 10,189,051,346 26,712,248 $35.56 $0.0000 $5.5956 $5,493,167 $0 $149,471,055 $154,964,221General Service 1,000 to 4,999 kW Customer kW 509 4,828,382,733 10,972,419 $686.46 $0.0000 $4.4497 $4,192,898 $0 $48,823,974 $53,016,871Large Use Customer kW 47 2,263,227,585 5,267,224 $3,009.11 $0.0000 $4.7406 $1,697,138 $0 $24,969,801 $26,666,940Street Lighting Connection kW 162,964 112,727,603 321,995 $1.30 $0.0000 $28.7248 $2,542,238 $0 $9,249,232 $11,791,471Unmetered Scattered Load Connection kWh 1,107 52,097,299 0 $4.84 $0.0607 $0.0000 $64,295 $3,162,306 $0 $3,226,601Unmetered Scattered Load Connection kWh 12,159 0 0 $0.49 $0.0000 $0.0000 $71,495 $0 $0 $71,495

$167,865,035 $129,751,360 $232,514,062 $530,130,457

Incremental Capital Workform

C1.1 Ld Act-Mst Rcent Yr

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 8 of 14

Current Revenue from Rates

Rate Class Fixed Metric Vol MetricCurrent Base

Service Charge

Current Base Distribution Volumetric

Rate kWh

Current Base Distribution

Volumetric Rate kW

Re-based Billed Customers or Connections

Re-based Billed kWh

Re-based Billed kW

Current Base Service Charge

Revenue

Current Base Distribution Volumetric Rate kWh

Revenue

Current Base Distribution Volumetric Rate kW

RevenueTotal Current Base Revenue

Service Charge % Total Revenue

Distribution Volumetric Rate % Total Revenue

Distribution Volumetric Rate % Total Revenue

Total % Revenue

A B C D E F G = A * D *12 H = B * E I = C * F J = G + H + I L = G / $K M = H / $K N = I / $K O = J / $KResidential Customer kWh 18.25 0.0151 598,508 4,886,977,489 0 131,073,252 73,646,751 0 204,720,003 24.9% 14.0% 0.0% 38.9%Residential Urban Customer kWh 6.83 0.0257 24,898 99,791,184 0 2,040,640 2,559,644 0 4,600,284 0.4% 0.5% 0.0% 0.9%General Service Less Than 50 kW Customer kWh 24.30 0.0225 65,792 2,139,318,076 0 19,184,993 48,070,477 0 67,255,470 3.6% 9.1% 0.0% 12.8%General Service 50 to 999 kW Customer kW 35.56 5.5956 13,067 10,116,374,153 26,935,191 5,575,758 0 150,718,556 156,294,314 1.1% 0.0% 28.7% 29.7%General Service 1,000 to 4,999 kW Customer kW 686.46 4.4497 514 4,626,928,262 10,587,119 4,234,085 0 47,109,505 51,343,590 0.8% 0.0% 9.0% 9.8%Large Use Customer kW 3,009.11 4.7406 47 2,376,778,323 4,993,733 1,697,138 0 23,673,292 25,370,430 0.3% 0.0% 4.5% 4.8%Street Lighting Connection kW 1.30 28.7248 162,777 110,165,016 322,023 2,539,322 0 9,250,042 11,789,364 0.5% 0.0% 1.8% 2.2%Unmetered Scattered Load Connection kWh 0.49 0.0607 1,130 56,231,585 0 6,642 3,413,257 0 3,419,900 0.0% 0.6% 0.0% 0.7%Unmetered Scattered Load Connection kWh 4.84 21,729 0 0 1,262,025 0 0 1,262,025 0.2% 0.0% 0.0% 0.2%

167,613,855 127,690,129 230,751,395 526,055,380 31.9% 24.3% 43.9% 100.0%K

Incremental Capital Workform

This sheet is used to determine the applicants most current allocation of revenues (after the most recent revenue cost ratio adjustment, if applicable) to be used to calculate the incremental capital rate riders.

D1.1 Current Revenue from Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 9 of 14

Threshold ParametersPrice Cap Index

Price Escalator (GDP-IPI) 2.00%

Less Productivity Factor -0.72%

Less Stretch Factor -0.60%

Price Cap Index 0.68%

Growth

ICM Billing Determinants for Growth - Numerator : 2011 Re-Based Forecast 528,018,642$ A

ICM Billing Determinants for Growth - Denominator : 2010 Audited RRR 530,130,457$ B

Incremental Capital Work

Growth -0.40% C = A / B

Incremental Capital Work

E1.1 Threshold Parameters

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 10 of 14

Threshold Test

Year 2011

Price Cap Index 0.68% AGrowth -0.40% BDead Band 20% C

Average Net Fixed AssetsGross Fixed Assets Opening 4,183,572,075$

Add: CWIP Opening 204,719,106$ Capital Additions 376,263,596$ Capital Disposals -$ Capital Retirements -$ Deduct: CWIP Closing 232,060,508-$

Gross Fixed Assets - Closing 4,532,494,269$

Average Gross Fixed Assets 4 358 033 172$

Incremental Capital Workform

Average Gross Fixed Assets 4,358,033,172$

Accumulated Depreciation - Opening 2,285,733,698$ Depreciation Expense 138,815,781$ DDisposals 2,807,234$ Retirements

Accumulated Depreciation - Closing 2,427,356,713$

Average Accumulated Depreciation 2,356,545,206$

Average Net Fixed Assets 2,001,487,967$ E

Working Capital AllowanceWorking Capital Allowance Base 2,479,952,766$ Working Capital Allowance Rate 12%

Working Capital Allowance 296,739,314$ F

Rate Base 2,298,227,281$ G = E + F

Depreciation D 138,815,781$ H

Threshold Test 124.62% I = 1 + ( G / H) * ( B + A * ( 1 + B)) + C

Threshold CAPEX 172,989,465$ J = H *I

Incremental Capital Workform

E2.1 Threshold Test

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 11 of 14

Summary of Incremental Capital Projects (ICPs)

Number of ICPs1

Project ID # Incremental Capital Non-Discretionary Project Description

Incremental Capital CAPEX

Amortization Expense CCA

ICP 1 Summary of Projects (please see Schedule E02-2) 361,494,112 11,605,251 24,672,614

361,494,112 11,605,251 24,672,614

Incremental Capital Workform

E3.1 Summary of I C Projects

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 12 of 14

Incremental Capital Adjustment

Current Revenue Requirement

Current Revenue Requirement - Total 533,324,186$ A

Return on Rate BaseIncremental Capital CAPEX 361,494,112$ BDepreciation Expense 11,605,251$ CIncremental Capital CAPEX to be included in Rate Base 349,888,861$ D = B - C

Deemed ShortTerm Debt % 4.0% E 13,995,554$ G = D * EDeemed Long Term Debt % 56.0% F 195,937,762$ H = D * F

Short Term Interest 2.46% I 344,291$ K = G * ILong Term Interest 5.37% J 10,521,858$ L = H * J

Return on Rate Base - Interest 10,866,148$ M = K + L

Deemed Equity % 40.0% N 139,955,544$ P = D * N

Return on Rate Base -Equity 9.58% O 13,407,741$ Q = P * O

Return on Rate Base - Total 24,273,890$ R = M + Q

Amortization Expense

Amortization Expense - Incremental C 11,605,251$ S

Incremental Capital W

Grossed up PIL's

Regulatory Taxable Income O 13,407,741$ T

Add Back Amortization Expense S 11,605,251$ U

Deduct CCA 24,672,614$ V

Incremental Taxable Income 340,378$ W = T + U - V

Current Tax Rate (F1.1 Z-Factor Tax Changes) 26.4% X

PIL's Before Gross Up 89,860$ Y = W * X

Incremental Grossed Up PIL's 122,092$ Z = Y / ( 1 - X )

Ontario Capital TaxIncremental Capital CAPEX 361,494,112$ AA

Less : Available Capital Exemption (if any) -$ AB

Incremental Capital CAPEX subject to OCT 361,494,112$ AC = AA - AB

Ontario Capital Tax Rate (F1.1 Z-Factor Tax Changes) 0.000% AD

Incremental Ontario Capital Tax -$ AE = AC * AD

Incremental Revenue RequirementReturn on Rate Base - Total Q 24,273,890$ AFAmortization Expense - Total S 11,605,251$ AGIncremental Grossed Up PIL's Z 122,092$ AHIncremental Ontario Capital Tax AE -$ AI

Incremental Revenue Requirement 36,001,232$ AJ = AF + AG + AH + AI

Incremental Capital W

E4.1 IncrementalCapitalAdjust

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 13 of 14

Calculation of Incremental Capital Rate Rider - Option A Fixed and Variable

Rate Class

Service Charge % Revenue

Distribution Volumetric

Rate % Revenue

kWh

Distribution Volumetric

Rate % Revenue

kW

Service Charge

Revenue

Distribution Volumetric

Rate Revenue kWh

Distribution Volumetric Rate

Revenue kW

Total Revenue by Rate Class

Billed Customers

or Connections Billed kWh Billed kW

Service Charge Rate

Rider

Distribution Volumetric Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

A B C D = $N * A E = $N * B F = $N * C G = D + E + F H I J K = D / H / 12 L = E / I M = F / JResidential 24.9% 14.0% 0.0% 8,970,155.54$ 5,040,103.90$ -$ 14,010,259.44$ 598,508 4,886,977,489 0 $1.248961 $0.001031Residential Urban 0.4% 0.5% 0.0% 139,653.66$ 175,172.30$ -$ 314,825.96$ 24,898 99,791,184 0 $0.467419 $0.001755General Service Less Than 50 kW 3.6% 9.1% 0.0% 1,312,948.03$ 3,289,760.88$ -$ 4,602,708.91$ 65,792 2,139,318,076 0 $1.663000 $0.001538General Service 50 to 999 kW 1.1% 0.0% 28.7% 381,583.69$ -$ 10,314,605.55$ 10,696,189.24$ 13,067 10,116,374,153 26,935,191 $2.433591 $0.000000 $0.382942General Service 1,000 to 4,999 kW 0.8% 0.0% 9.0% 289,764.72$ -$ 3,223,995.57$ 3,513,760.29$ 514 4,626,928,262 10,587,119 $46.978715 $0.000000 $0.304521Large Use 0.3% 0.0% 4.5% 116,145.68$ -$ 1,620,110.20$ 1,736,255.88$ 47 2,376,778,323 4,993,733 $205.932059 $0.000000 $0.324429Street Lighting 0.5% 0.0% 1.8% 173,781.53$ -$ 633,037.76$ 806,819.29$ 162,777 110,165,016 322,023 $0.088967 $0.000000 $1.965816Unmetered Scattered Load 0.0% 0.6% 0.0% 454.58$ 233,590.36$ -$ 234,044.94$ 1,130 56,231,585 0 $0.033534 $0.004154Unmetered Scattered Load 0.2% 0.0% 0.0% 86,368.22$ -$ -$ 86,368.22$ 21,729 0 0 $0.331231

11,470,855.64$ 8,738,627.45$ 15,791,749.08$ 36,001,232.17$ -

Enter the above rate riders onto "Sheet 14. Proposed Rate_Riders" in the 2012 OEB IRM3 Rate

Generator as an "Rate Rider for Incremental Capital"

Incremental Capital Workform

F1.1 Incr Cap RRider Opt A FV

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E2.1

ORIGINALpage 14 of 14

Calculation of Incremental Capital Rate Rider - Option B Variable

Rate ClassTotal Revenue $ by Rate Class

Total Revenue % by Rate Class

Total Incremental Capital $ by Rate Class Billed kWh Billed kW

Distribution Volumetric

Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

A B = A / $H C = $I * B D E F = C / D G = C / EResidential $204,720,003 38.92% $14,010,259 4,886,977,489 0 $0.0029Residential Urban $4,600,284 0.87% $314,826 99,791,184 0 $0.0032General Service Less Than 50 kW $67,255,470 12.78% $4,602,709 2,139,318,076 0 $0.0022General Service 50 to 999 kW $156,294,314 29.71% $10,696,189 ############ 26,935,191 $0.3971General Service 1,000 to 4,999 kW $51,343,590 9.76% $3,513,760 4,626,928,262 10,587,119 $0.3319

Incremental Capital Workform

, , $ , , $ , , , , , , , $Large Use $25,370,430 4.82% $1,736,256 2,376,778,323 4,993,733 $0.3477Street Lighting $11,789,364 2.24% $806,819 110,165,016 322,023 $2.5055Unmetered Scattered Load $3,419,900 0.65% $234,045 56,231,585 0 $0.0042Unmetered Scattered Load $1,262,025 0.24% $86,368 0 0

$526,055,380 100.00% $36,001,232H I

Enter the above rate riders onto "Sheet 14. Proposed Rate_Riders" in the 2012 OEB IRM3 Rate Generator as an "Rate

Rider for Incremental Capital"

Incremental Capital Workform

F1.2 Incr Cap RRider Opt B Var

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Toronto Hydro‐Electric System LimitedEB‐2012‐0064

Tab 4Schedule E2.2

ORIGINALpage 1 of 1

ICM Values Calculation ‐ 2013

Net Fixed Asset Amort. Exp CCA01 Underground Infrastructure 53,019,759 1,724,248 4,241,58102 Paper Insulated Lead Covered Cable ‐ Piece Outs and Leakers 5,179,019 141,840 414,32103 Handwell Replacement 14,450,828 361,271 1,156,06604 Overhead Infrastructure 53,018,072 1,421,159 4,241,44605 Box Construction 20,535,926 523,324 1,642,87406 Rear Lot Construction 20,734,567 660,170 1,658,76507 Polymer SMD ‐ 20 Switches 2,948,667 88,077 235,89308 Scadamate R1 Switches 2,803,776 92,439 224,30209 Network Vault & Roofs 12,309,785 384,084 984,78310 Fibertop Network Units 8,778,013 419,666 702,24111 Automatic Transfer Switches (ATS) % Reverse Power Breakers (RPB) 3,297,775 155,044 263,82212 Stations Power Transformers 2,558,251 80,047 204,36614 Stations Circuit Breakers 1,076,332 35,878 86,10715 Stations Control & Communication Systems 2,154,380 143,625 430,87616 Downtown Station Load Transfers 1,585,675 44,989 126,85417 Bremner Transformer Station 69,382,972 1,759,544 4,111,85218 Hydro One Capital Contributions 52,118,000 2,084,720 020 Metering 7,205,079 312,442 576,40621 Externally‐Initiated Plant Relocations and Expansions 17,670,845 521,762 1,413,66822 Grid Solutions 3,597,000 389,675 1,390,84019 FEEDER AUTOMATION (Prorated) 7,069,391 261,247 565,551

19 Feeder Automation 16,302,538 602,454 1,304,203

19 FEEDER AUTOMATION (Prorated) 9,233,147 341,207 738,65213 Stations Switchgear 18,756,318 476,263 1,503,686PCI Total 145,000,000 0 0

Total 534,483,577 12,422,721 26,914,952

Threshold CAPEX 172,989,465$           

Net Fixed Asset Amort. Exp CCAValues Above Threshold for ICM Model 361,494,112 11,605,251 24,672,614Threshold Values 172,989,465 817,470 2,242,338

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Toronto Hydro‐Electric System LimitedEB‐2012‐0064

Tab 4Schedule E2.3

ORIGINALpage 1 of 1

Calculation of ICM Rate Rider on Days of Service Basis

Rate Class

Service Charge Rate

Rider

Distribution Volumetric Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

Service Charge Rate Rider

(DOS)

Distribution Volumetric

Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider (DOS)

K = D / H / 12 L = E / I M = F / J  Residential $1.2490 $0.001031 $1.231852 $0.001031Residential Urban $0.4674 $0.001755 $0.461016 $0.001755General Service Less Than 50 kW $1.6630 $0.001538 $1.640219 $0.001538General Service 50 to 999 kW $2.4336 $0.000000 $0.3829 $2.400254 $0.377696General Service 1,000 to 4,999 kW $46.9787 $0.000000 $0.3045 $46.335171 $0.300349Large Use $205.9321 $0.000000 $0.3244 $203.111072 $0.319985Street Lighting $0.0890 $0.000000 $1.9658 $0.087748 $1.938887Unmetered Scattered Load $0.0335 $0.004154 $0.033075 $0.004154Unmetered Scattered Load $0.3312 $0.326694

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 1 of 14

Applicant Name Toronto Hydro-Electric System Limited

Application Type IRM3

LDC Licence Number ED-2002-0497

Incremental Capital Workform

DROP-DOWN MENU INPUT FIELD CALCULATION Legend

Applied for Effective Date May 1, 2012

Stretch Factor Group III

Stretch Factor Value 0.6%

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

ICM Billing Determinants for Growth - Numerator 2011 Re-Based Forecast

ICM Billing Determinants for Growth - Denominator 2010 Audited RRR

Incremental Capital Workform

DROP-DOWN MENU INPUT FIELD CALCULATION Legend

A1.1 LDC Information

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 2 of 14

Table of ContentsSheet Name Purpose of Sheet

A1.1 LDC Information Enter LDC Data

A2.1 Table of Contents Table of Contents

B1.1 Re-Based Bill Det & Rates Set Up Rate Classes and enter Re-Based Billing Determinants and Tariff Rates

B1.2 Removal of Rate Adders Removal of Rate Adders

B1.3 Re-Based Rev From Rates Calculated Re-Based Revenue From Rates

Incremental Capital Workform

B1.4 Re-Based Rev Req Detailed Re-Based Revenue From Rates

C1.1 Ld Act-Mst Rcent Yr Enter Billing Determinants for most recent actual year

D1.1 Current Revenue from Rates Enter Current Rates to calculate current rate allocation

E1.1 Threshold Parameters Shows calculation of Price Cap and Growth used for incremental capital threshold calculation

E2.1 Threshold Test Input sheet to calculate Threshold and Incremental Capital

E3.1 Summary of I C Projects Summary of Incremental Capital Projects

E4.1 IncrementalCapitalAdjust Shows Calculation of Incremental Capital Revenue Requirement

F1.1 Incr Cap RRider Opt A FV Option A - Calculation of Incremental Capital Rate Rider - Fixed & Variable Split

F1.2 Incr Cap RRider Opt B Var Option B - Calculation of Incremental Capital Rate Rider - Variable Allocation

Z1.0 OEB Control Sheet Not Shown

Incremental Capital Workform

A2.1 Table of Contents

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 3 of 14

Rate Class and Re-Based Billing Determinants & Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Rate Group Rate Class Fixed Metric Vol Metric

Re-based Billed Customers or Connections

Re-based Billed kWh

Re-based Billed kW

Re-based Tariff Service

Charge

Re-based Tariff Distribution

Volumetric Rate kWh

Re-based Tariff Distribution

Volumetric Rate kWA B C D E F

RES Residential Customer kWh 598,508 4,886,977,489 18.25 0.0151RES Residential Urban Customer kWh 24,898 99,791,184 17.00 0.0257

GSLT50 General Service Less Than 50 kW Customer kWh 65,792 2,139,318,076 0 24.30 0.0225GSGT50 General Service 50 to 999 kW Customer kW 13,067 10,116,374,153 26,935,191 35.56 5.5956

Incremental Capital Workform

Select the appropriate Rate Groups and Rate Classes from the drop-down menus in Columns C and D respectively. Following your selection, all appropriate input cells will be shaded green.

GSGT50 General Service 50 to 999 kW Customer kW 13,067 10,116,374,153 26,935,191 35.56 5.5956GSGT50 General Service 1,000 to 4,999 kW Customer kW 514 4,626,928,262 10,587,119 686.46 4.4497

LU Large Use Customer kW 47 2,376,778,323 4,993,733 3,009.11 4.7406SL Street Lighting Connection kW 162,777 110,165,016 322,023 1.30 28.7248

USL Unmetered Scattered Load Connection kWh 1,130 56,231,585 4.84 0.0607USL Unmetered Scattered Load Connection kWh 21,729 0 0.49NA Rate Class 10 NA NANA Rate Class 11 NA NANA Rate Class 12 NA NANA Rate Class 13 NA NANA Rate Class 14 NA NANA Rate Class 15 NA NANA Rate Class 16 NA NANA Rate Class 17 NA NANA Rate Class 18 NA NANA Rate Class 19 NA NANA Rate Class 20 NA NANA Rate Class 21 NA NANA Rate Class 22 NA NANA Rate Class 23 NA NANA Rate Class 24 NA NANA Rate Class 25 NA NA

Incremental Capital Workform

Select the appropriate Rate Groups and Rate Classes from the drop-down menus in Columns C and D respectively. Following your selection, all appropriate input cells will be shaded green.

B1.1 Re-Based Bill Det & Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 4 of 14

Removal of Rate Adders

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Rate ClassRe-based Tariff Service Charge

Re-based Tariff Distribution Volumetric

Rate kWh

Re-based Tariff Distribution Volumetric

Rate kWService Charge

Rate Adders

Distribution Volumetric kWh Rate

Adders

Distribution Volumetric kW Rate

AddersRe-based Base Service Charge

Re-based Base Distribution Volumetric

Rate kWh

Re-based Base Distribution Volumetric

Rate kWA B C D E F H = A - D I = B - E J = C - F

Residential 18.25 0.0151 0.0000 0.00 0.0000 0.0000 18.25 0.0151 0.0000Residential Urban 17.00 0.0257 0.0000 0.00 0.0000 0.0000 17.00 0.0257 0.0000General Service Less Than 50 kW 24.30 0.0225 0.0000 0.00 0.0000 0.0000 24.30 0.0225 0.0000General Service 50 to 999 kW 35.56 0.0000 5.5956 0.00 0.0000 0.0000 35.56 0.0000 5.5956General Service 1,000 to 4,999 kW 686.46 0.0000 4.4497 0.00 0.0000 0.0000 686.46 0.0000 4.4497Large Use 3,009.11 0.0000 4.7406 0.00 0.0000 0.0000 3,009.11 0.0000 4.7406Street Lighting 1.30 0.0000 28.7248 0.00 0.0000 0.0000 1.30 0.0000 28.7248Unmetered Scattered Load 4.84 0.0607 0.0000 0.00 0.0000 0.0000 4.84 0.0607 0.0000Unmetered Scattered Load 0.49 0.0000 0.0000 0.00 0.0000 0.0000 0.49 0.0000 0.0000

Incremental Capital Workform

B1.2 Removal of Rate Adders

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 5 of 14

Calculated Re-Based Revenue From Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Re-based Billed

Customers or Re-based Re-based Re-based Base

Re-based Base Distribution Volumetric

Re-based Base Distribution Volumetric Service Charge

Distribution Volumetric

Rate Revenue

Distribution Volumetric

Rate Revenue

Revenue Requirement

Incremental Capital Workform

Rate ClassCustomers or Connections

Re-based Billed kWh

Re-based Billed kW

Re-based Base Service Charge

Volumetric Rate kWh

Volumetric Rate kW

Service Charge Revenue

Revenue kWh

Revenue kW

Requirement from Rates

A B C D E F G = A * D *12 H = B * E I = C * F J = G + H + IResidential 598,508 4,886,977,489 0 18.25 0.0151 0.0000 131,073,252 73,646,751 0 204,720,003Residential Urban 24,898 99,791,184 0 17.00 0.0257 0.0000 5,079,192 2,559,644 0 7,638,836General Service Less Than 50 kW 65,792 2,139,318,076 0 24.30 0.0225 0.0000 19,184,993 48,070,477 0 67,255,470General Service 50 to 999 kW 13,067 10,116,374,153 26,935,191 35.56 0.0000 5.5956 5,575,758 0 150,718,556 156,294,314General Service 1,000 to 4,999 kW 514 4,626,928,262 10,587,119 686.46 0.0000 4.4497 4,234,085 0 47,109,505 51,343,590Large Use 47 2,376,778,323 4,993,733 3,009.11 0.0000 4.7406 1,697,138 0 23,673,292 25,370,430Street Lighting 162,777 110,165,016 322,023 1.30 0.0000 28.7248 2,539,322 0 9,250,042 11,789,364Unmetered Scattered Load 1,130 56,231,585 0 4.84 0.0607 0.0000 65,611 3,413,257 0 3,478,868Unmetered Scattered Load 21,729 0 0 0.49 0.0000 0.0000 127,767 0 0 127,767

169,577,117 127,690,129 230,751,395 528,018,642O P Q R

Incremental Capital Workform

B1.3 Re-Based Rev From Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 6 of 14

Detailed Re-Based Revenue From Rates

Last COS Re-based Year 2011

Last COS OEB Application Number EB-2010-0142

Applicants Rate BaseAverage Net Fixed Assets

Gross Fixed Assets - Re-based Opening 4,183,572,075$ AAdd: CWIP Re-based Opening 204,719,106$ BRe-based Capital Additions 376,263,596$ CRe-based Capital Disposals DRe-based Capital Retirements EDeduct: CWIP Re-based Closing 232,060,508-$ FGross Fixed Assets - Re-based Closing 4,532,494,269$ GAverage Gross Fixed Assets 4,358,033,172$ H = ( A + G ) / 2

Accumulated Depreciation - Re-based Opening 2,285,733,698$ IRe-based Depreciation Expense 138,815,781$ JRe-based Disposals 2,807,234$ KRe-based Retirements LAccumulated Depreciation - Re-based Closing 2,427,356,713$ MAverage Accumulated Depreciation 2,356,545,206$ N = ( I + M ) / 2

Average Net Fixed Assets 2,001,487,967$ O = H - N

Working Capital AllowanceWorking Capital Allowance Base 2,479,952,766$ PWorking Capital Allowance Rate 12.0% Q

Working Capital Allowance 296,739,314$ R = P * Q

Last Rate Re-based Amount

Incremental Capital Workform

g p , ,$

Rate Base 2,298,227,281$ S = O + R

Return on Rate BaseDeemed ShortTerm Debt % 4.00% T 91,929,091$ W = S * TDeemed Long Term Debt % 56.00% U 1,287,007,277$ X = S * UDeemed Equity % 40.00% V 919,290,912$ Y = S * V

Short Term Interest 2.46% Z 2,261,456$ AC = W * ZLong Term Interest 5.37% AA 69,112,291$ AD = X * AAReturn on Equity 9.58% AB 88,068,069$ AE = Y * ABReturn on Rate Base 159,441,816$ AF = AC + AD + AE

Distribution ExpensesOM&A Expenses 231,014,224$ AGAmortization 138,815,781$ AHOntario Capital Tax (F1.1 Z-Factor Tax Changes) 6,802,382$ AIGrossed Up PILs (F1.1 Z-Factor Tax Changes) 11,791,223$ AJLow Voltage AKTransformer Allowance 11,479,842$ AL

-$ AMANAO

399,903,452$ AP = SUM ( AG : AO )

Revenue OffsetsSpecific Service Charges 7,580,526-$ AQLate Payment Charges 4,900,000-$ AROther Distribution Income 7,240,556-$ ASOther Income and Deductions 6,300,000-$ AT 26,021,082-$ AU = SUM ( AQ : AT )

Revenue Requirement from Distribution Rates 533,324,186$ AV = AF + AP + AU

Rate Classes RevenueRate Classes Revenue - Total (B1.1 Re-based Revenue - Gen) 528,018,642$ AW

Difference 5,305,544$ AZ = AV - AW

Difference (Percentage - should be less than 1%) 1.00% BA = AZ / AW

Incremental Capital Workform

B1.4 Re-Based Rev Req

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 7 of 14

Load Actual - Most Recent Year

Rate Class Fixed Metric Vol MetricBilled Customers or Connections Billed kWh Billed kW

Base Service Charge

Base Distribution Volumetric Rate

kWh

Base Distribution Volumetric Rate

kWService Charge

Revenue

Distribution Volumetric Rate Revenue

kWh

Distribution Volumetric Rate Revenue

kWTotal Revenue by Rate Class

A B C D E F G = A * D * 12 H = B * E I = C * F J = G + H + IResidential Customer kWh 591,496 5,105,974,275 0 $18.25 $0.0151 $0.0000 $129,537,624 $76,947,032 $0 $206,484,656Residential Urban Customer kWh 24,898 99,791,184 0 $17.00 $0.0257 $0.0000 $5,079,192 $2,559,644 $0 $7,638,836General Service Less Than 50 kW Customer kWh 65,799 2,095,343,918 0 $24.30 $0.0225 $0.0000 $19,186,988 $47,082,378 $0 $66,269,366General Service 50 to 999 kW Customer kW 12,873 10,189,051,346 26,712,248 $35.56 $0.0000 $5.5956 $5,493,167 $0 $149,471,055 $154,964,221General Service 1,000 to 4,999 kW Customer kW 509 4,828,382,733 10,972,419 $686.46 $0.0000 $4.4497 $4,192,898 $0 $48,823,974 $53,016,871Large Use Customer kW 47 2,263,227,585 5,267,224 $3,009.11 $0.0000 $4.7406 $1,697,138 $0 $24,969,801 $26,666,940Street Lighting Connection kW 162,964 112,727,603 321,995 $1.30 $0.0000 $28.7248 $2,542,238 $0 $9,249,232 $11,791,471Unmetered Scattered Load Connection kWh 1,107 52,097,299 0 $4.84 $0.0607 $0.0000 $64,295 $3,162,306 $0 $3,226,601Unmetered Scattered Load Connection kWh 12,159 0 0 $0.49 $0.0000 $0.0000 $71,495 $0 $0 $71,495

$167,865,035 $129,751,360 $232,514,062 $530,130,457

Incremental Capital Workform

C1.1 Ld Act-Mst Rcent Yr

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 8 of 14

Current Revenue from Rates

Rate Class Fixed Metric Vol MetricCurrent Base

Service Charge

Current Base Distribution Volumetric

Rate kWh

Current Base Distribution

Volumetric Rate kW

Re-based Billed Customers or Connections

Re-based Billed kWh

Re-based Billed kW

Current Base Service Charge

Revenue

Current Base Distribution Volumetric Rate kWh

Revenue

Current Base Distribution Volumetric Rate kW

RevenueTotal Current Base Revenue

Service Charge % Total Revenue

Distribution Volumetric Rate % Total Revenue

Distribution Volumetric Rate % Total Revenue

Total % Revenue

A B C D E F G = A * D *12 H = B * E I = C * F J = G + H + I L = G / $K M = H / $K N = I / $K O = J / $KResidential Customer kWh 18.25 0.0151 598,508 4,886,977,489 0 131,073,252 73,646,751 0 204,720,003 24.9% 14.0% 0.0% 38.9%Residential Urban Customer kWh 6.83 0.0257 24,898 99,791,184 0 2,040,640 2,559,644 0 4,600,284 0.4% 0.5% 0.0% 0.9%General Service Less Than 50 kW Customer kWh 24.30 0.0225 65,792 2,139,318,076 0 19,184,993 48,070,477 0 67,255,470 3.6% 9.1% 0.0% 12.8%General Service 50 to 999 kW Customer kW 35.56 5.5956 13,067 10,116,374,153 26,935,191 5,575,758 0 150,718,556 156,294,314 1.1% 0.0% 28.7% 29.7%General Service 1,000 to 4,999 kW Customer kW 686.46 4.4497 514 4,626,928,262 10,587,119 4,234,085 0 47,109,505 51,343,590 0.8% 0.0% 9.0% 9.8%Large Use Customer kW 3,009.11 4.7406 47 2,376,778,323 4,993,733 1,697,138 0 23,673,292 25,370,430 0.3% 0.0% 4.5% 4.8%Street Lighting Connection kW 1.30 28.7248 162,777 110,165,016 322,023 2,539,322 0 9,250,042 11,789,364 0.5% 0.0% 1.8% 2.2%Unmetered Scattered Load Connection kWh 0.49 0.0607 1,130 56,231,585 0 6,642 3,413,257 0 3,419,900 0.0% 0.6% 0.0% 0.7%Unmetered Scattered Load Connection kWh 4.84 21,729 0 0 1,262,025 0 0 1,262,025 0.2% 0.0% 0.0% 0.2%

167,613,855 127,690,129 230,751,395 526,055,380 31.9% 24.3% 43.9% 100.0%K

Incremental Capital Workform

This sheet is used to determine the applicants most current allocation of revenues (after the most recent revenue cost ratio adjustment, if applicable) to be used to calculate the incremental capital rate riders.

D1.1 Current Revenue from Rates

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 9 of 14

Threshold ParametersPrice Cap Index

Price Escalator (GDP-IPI) 2.00%

Less Productivity Factor -0.72%

Less Stretch Factor -0.60%

Price Cap Index 0.68%

Growth

ICM Billing Determinants for Growth - Numerator : 2011 Re-Based Forecast 528,018,642$ A

ICM Billing Determinants for Growth - Denominator : 2010 Audited RRR 530,130,457$ B

Incremental Capital Work

Growth -0.40% C = A / B

Incremental Capital Work

E1.1 Threshold Parameters

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 10 of 14

Threshold Test

Year 2011

Price Cap Index 0.68% AGrowth -0.40% BDead Band 20% C

Average Net Fixed AssetsGross Fixed Assets Opening 4,183,572,075$

Add: CWIP Opening 204,719,106$ Capital Additions 376,263,596$ Capital Disposals -$ Capital Retirements -$ Deduct: CWIP Closing 232,060,508-$

Gross Fixed Assets - Closing 4,532,494,269$

Average Gross Fixed Assets 4,358,033,172$

A l t d D i ti O i 2 285 733 698$

Incremental Capital Workform

Accumulated Depreciation - Opening 2,285,733,698$ Depreciation Expense 138,815,781$ DDisposals 2,807,234$ Retirements

Accumulated Depreciation - Closing 2,427,356,713$

Average Accumulated Depreciation 2,356,545,206$

Average Net Fixed Assets 2,001,487,967$ E

Working Capital AllowanceWorking Capital Allowance Base 2,479,952,766$ Working Capital Allowance Rate 12%

Working Capital Allowance 296,739,314$ F

Rate Base 2,298,227,281$ G = E + F

Depreciation D 138,815,781$ H

Threshold Test 124.62% I = 1 + ( G / H) * ( B + A * ( 1 + B)) + C

Threshold CAPEX 172,989,465$ J = H *I

Incremental Capital Workform

E2.1 Threshold Test

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 11 of 14

Summary of Incremental Capital Projects (ICPs)

Number of ICPs1

Project ID # Incremental Capital Non-Discretionary Project Description

Incremental Capital CAPEX

Amortization Expense CCA

ICP 1 Summary of Projects (please see Schedule E03-2) 133,239,694 4,494,789 9,336,431

133,239,694 4,494,789 9,336,431

Incremental Capital Workform

E3.1 Summary of I C Projects

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 12 of 14

Incremental Capital Adjustment

Current Revenue Requirement

Current Revenue Requirement - Total 533,324,186$ A

Return on Rate BaseIncremental Capital CAPEX 133,239,694$ BDepreciation Expense 4,494,789$ CIncremental Capital CAPEX to be included in Rate Base 128,744,905$ D = B - C

Deemed ShortTerm Debt % 4.0% E 5,149,796$ G = D * EDeemed Long Term Debt % 56.0% F 72,097,147$ H = D * F

Short Term Interest 2.46% I 126,685$ K = G * ILong Term Interest 5.37% J 3,871,617$ L = H * J

Return on Rate Base - Interest 3,998,302$ M = K + L

Deemed Equity % 40.0% N 51,497,962$ P = D * N

Return on Rate Base -Equity 9.58% O 4,933,505$ Q = P * O

Return on Rate Base - Total 8,931,807$ R = M + Q

Amortization Expense

Amortization Expense - Incremental C 4,494,789$ S

Incremental Capital W

Grossed up PIL's

Regulatory Taxable Income O 4,933,505$ T

Add Back Amortization Expense S 4,494,789$ U

Deduct CCA 9,336,431$ V

Incremental Taxable Income 91,862$ W = T + U - V

Current Tax Rate (F1.1 Z-Factor Tax Changes) 26.4% X

PIL's Before Gross Up 24,252$ Y = W * X

Incremental Grossed Up PIL's 32,951$ Z = Y / ( 1 - X )

Ontario Capital TaxIncremental Capital CAPEX 133,239,694$ AA

Less : Available Capital Exemption (if any) -$ AB

Incremental Capital CAPEX subject to OCT 133,239,694$ AC = AA - AB

Ontario Capital Tax Rate (F1.1 Z-Factor Tax Changes) 0.000% AD

Incremental Ontario Capital Tax -$ AE = AC * AD

Incremental Revenue RequirementReturn on Rate Base - Total Q 8,931,807$ AFAmortization Expense - Total S 4,494,789$ AGIncremental Grossed Up PIL's Z 32,951$ AHIncremental Ontario Capital Tax AE -$ AI

Incremental Revenue Requirement 13,459,546$ AJ = AF + AG + AH + AI

Incremental Capital W

E4.1 IncrementalCapitalAdjust

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 13 of 14

Calculation of Incremental Capital Rate Rider - Option A Fixed and Variable

Rate Class

Service Charge % Revenue

Distribution Volumetric

Rate % Revenue

kWh

Distribution Volumetric

Rate % Revenue

kW

Service Charge

Revenue

Distribution Volumetric

Rate Revenue kWh

Distribution Volumetric Rate

Revenue kW

Total Revenue by Rate Class

Billed Customers

or Connections Billed kWh Billed kW

Service Charge Rate

Rider

Distribution Volumetric Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

A B C D = $N * A E = $N * B F = $N * C G = D + E + F H I J K = D / H / 12 L = E / I M = F / JResidential 24.9% 14.0% 0.0% 3,353,613.60$ 1,884,310.81$ -$ 5,237,924.41$ 598,508 4,886,977,489 0 $0.466941 $0.000386Residential Urban 0.4% 0.5% 0.0% 52,211.40$ 65,490.53$ -$ 117,701.93$ 24,898 99,791,184 0 $0.174751 $0.000656General Service Less Than 50 kW 3.6% 9.1% 0.0% 490,863.33$ 1,229,921.47$ -$ 1,720,784.79$ 65,792 2,139,318,076 0 $0.621735 $0.000575General Service 50 to 999 kW 1.1% 0.0% 28.7% 142,660.21$ -$ 3,856,254.37$ 3,998,914.58$ 13,067 10,116,374,153 26,935,191 $0.909831 $0.000000 $0.143168General Service 1,000 to 4,999 kW 0.8% 0.0% 9.0% 108,332.45$ -$ 1,205,334.22$ 1,313,666.66$ 514 4,626,928,262 10,587,119 $17.563626 $0.000000 $0.113849Large Use 0.3% 0.0% 4.5% 43,422.63$ -$ 605,700.04$ 649,122.67$ 47 2,376,778,323 4,993,733 $76.990477 $0.000000 $0.121292Street Lighting 0.5% 0.0% 1.8% 64,970.57$ -$ 236,669.70$ 301,640.27$ 162,777 110,165,016 322,023 $0.033262 $0.000000 $0.734947Unmetered Scattered Load 0.0% 0.6% 0.0% 169.95$ 87,330.91$ -$ 87,500.86$ 1,130 56,231,585 0 $0.012537 $0.001553Unmetered Scattered Load 0.2% 0.0% 0.0% 32,289.92$ -$ -$ 32,289.92$ 21,729 0 0 $0.123835

4,288,534.06$ 3,267,053.71$ 5,903,958.33$ 13,459,546.09$ -

Enter the above rate riders onto "Sheet 14. Proposed Rate_Riders" in the 2012 OEB IRM3 Rate

Generator as an "Rate Rider for Incremental Capital"

Incremental Capital Workform

F1.1 Incr Cap RRider Opt A FV

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Toronto Hydro-Electric System LimitedEB-2012-0064

Tab 4Schedule E3.1

ORIGINALpage 14 of 14

Calculation of Incremental Capital Rate Rider - Option B Variable

Rate ClassTotal Revenue $ by Rate Class

Total Revenue % by Rate Class

Total Incremental Capital $ by Rate Class Billed kWh Billed kW

Distribution Volumetric

Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

A B = A / $H C = $I * B D E F = C / D G = C / EResidential $204,720,003 38.92% $5,237,924 4,886,977,489 0 $0.0011Residential Urban $4,600,284 0.87% $117,702 99,791,184 0 $0.0012General Service Less Than 50 kW $67,255,470 12.78% $1,720,785 2,139,318,076 0 $0.0008General Service 50 to 999 kW $156,294,314 29.71% $3,998,915 ############ 26,935,191 $0.1485General Service 1,000 to 4,999 kW $51,343,590 9.76% $1,313,667 4,626,928,262 10,587,119 $0.1241

Incremental Capital Workform

, , $ , , $ , , , , , , , $Large Use $25,370,430 4.82% $649,123 2,376,778,323 4,993,733 $0.1300Street Lighting $11,789,364 2.24% $301,640 110,165,016 322,023 $0.9367Unmetered Scattered Load $3,419,900 0.65% $87,501 56,231,585 0 $0.0016Unmetered Scattered Load $1,262,025 0.24% $32,290 0 0

$526,055,380 100.00% $13,459,546H I

Enter the above rate riders onto "Sheet 14. Proposed Rate_Riders" in the 2012 OEB IRM3 Rate Generator as an "Rate

Rider for Incremental Capital"

Incremental Capital Workform

F1.2 Incr Cap RRider Opt B Var

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Toronto Hydro‐Electric System LimitedEB‐2012‐0064

Tab 4Schedule E3.2

ORIGINALpage 1 of 1

ICM Values Calculation ‐ 2014  (NOTE: ICM Values reflect half‐year rule)

Net Fixed Asset Amort. Exp CCA01 Underground Infrastructure 37,461,384 1,258,650 2,996,91102 Paper Insulated Lead Covered Cable ‐ Piece Outs and Leakers 733,306 18,333 58,66518 Hydro One Capital Contributions 18,000,000 720,000 004 Overhead Infrastructure 10,056,813 267,000 804,54505 Box Construction 13,881,105 357,242 1,110,48906 Rear Lot Construction 5,515,970 213,747 441,27807 Polymer SMD ‐ 20 Switches 1,468,344 43,860 117,46808 Scadamate R1 Switches 1,346,912 44,407 107,75309 Network Vault & Roofs 7,787,313 216,045 622,98510 Fibertop Network Units 4,678,787 223,823 374,30311 Automatic Transfer Switches (ATS) % Reverse Power Breakers (RPB) 1,612,730 75,826 129,01912 Stations Power Transformers 437,366 13,668 34,99014 Stations Circuit Breakers 690,375 23,013 54,79115 Stations Control & Communication Systems 668,356 44,557 133,67116 Downtown Station Load Transfers 1,795,971 54,946 143,67817 Bremner Transformer Station 11,508,278 342,579 769,94803 Handwell Replacement 3,584,891 89,623 286,79120 Metering 5,013,019 213,502 401,04221 Externally‐Initiated Plant Relocations and Expansions  6,671,463 220,785 533,71722 Grid Solutions (Prorated) 327,316 53,189 214,392

22 Grid Solutions (Original) 959,200 155,870 628,276

22 Grid Solutions (Prorated) 304,567 49,492 199,49219 Feeder Automation 7,376,248 245,558 590,10013 Stations Switchgear 20,308,650 520,944 1,625,438PCI Total 145,000,000 0 0

Total 306,229,159 5,310,783 11,751,461 Threshold CAPEX 172,989,465$            

Net Fixed Asset Amort. Exp CCAValues Above Threshold for ICM Model 133,239,694 4,494,789 9,336,431Threshold Values 172,989,465 815,994 2,415,030

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Toronto Hydro‐Electric System LimitedEB‐2012‐0064

Tab 4Schedule E3.3

ORIGINALpage 1 of 1

Calculation of ICM Rate Rider on Days of Service Basis

Rate Class

Service Charge Rate

Rider

Distribution Volumetric Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider

Service Charge Rate Rider

(DOS)

Distribution Volumetric

Rate kWh Rate Rider

Distribution Volumetric

Rate kW Rate Rider (DOS)

K = D / H / 12 L = E / I M = F / J  Residential $0.4669 $0.000386 $0.460545 $0.000386Residential Urban $0.1748 $0.000656 $0.172357 $0.000656General Service Less Than 50 kW $0.6217 $0.000575 $0.613218 $0.000575General Service 50 to 999 kW $0.9098 $0.000000 $0.1432 $0.897368 $0.141207General Service 1,000 to 4,999 kW $17.5636 $0.000000 $0.1138 $17.323028 $0.112289Large Use $76.9905 $0.000000 $0.1213 $75.935813 $0.119630Street Lighting $0.0333 $0.000000 $0.7349 $0.032806 $0.724879Unmetered Scattered Load $0.0125 $0.001553 $0.012365 $0.001553Unmetered Scattered Load $0.1238 $0.122139