9 Regulatory Aspects of Standard of Performance of DISCOM and Increasing Energy Efficiency by Energy...

8/2/2019 9 Regulatory Aspects of Standard of Performance of DISCOM and Increasing Energy Efficiency by Energy Audit & Renewable Energy Project

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Presentation on Regulatory Aspects of Standard of

Performance of DISCOM andIncreasing Energy Efficiency by

Energy Audit & Renewable Energy

ProjectBy

POWER TECH CONSULTANTS1-A/6, Swati Villa Surya ViharLink Road, Cuttack-753012

Phone:9437155337, 06712328844Email: [email protected]

www.pwrtch.com
mailto:[email protected]:[email protected]


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GUARANTEED STANDARDS OFPERFORMANCE OF DISCOM

Restoration of Power Supply

Within 4 (Four) hours of receipt of complaint, the Licensee shallinform, on enquiry by the consumer, the likely time by which thepower supply be restored.

Normal Fuse-off

The Licensee shall restore power supply in the case of normalfuse-off calls (replacing Horn Gap (HG) fuses or Low Tension (LT)fuses at the distribution transformer or at the consumer premises)within 6 hours of receiving the complaint in towns and cities andwithin 24 hours of receiving the complaint in rural areas.

Orissa Electricity Regulatory Commission (Licensees Standards of

Performance) Regulations, 2004 is applicable to all Distribution Licenseesand all Trading Licensees engaged in supply of electricity to the people ofOrissa.


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Line Breakdowns

In case of line breakdowns, the licensee shall ensure restoration ofpower supply within 12 hours of occurrence of breakdown in townsand cities and within 24 hours of occurrence of breakdown in ruralareas. However, in case of major breakdowns due to heavy rain,lightning, whirlwind requiring replacement of conductor, structures

the licensee shall ensure restoration of power supply within 24 hrs ofoccurrence of breakdown in towns and cities and within 48 hrs ofoccurrence of breakdown in rural areas.


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Distribution Transformer failure:

The Licensee shall restore supply in the case of distributiontransformer failures by replacement of transformer within 24 hours ofreceiving the complaint in towns and cities and within 48 hours ofreceiving the complaint in rural areas.

Period of scheduled outages:

Interruption in power supply due to scheduled outages shall benotified by the licensee at least 24 hours in advance and shall notexceed 12 hours in a day. In each such event, the licensee shall

endeavour to ensure that the supply is restored by 6:00 PM duringSummer and 5 PM during winter.


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Information on Standards of Performance

1. The Licensee shall furnish to the Commission, in monthly

reports and a consolidated annual report for each financial year,the following information as to the Guaranteed Standards ofPerformance:

The levels of performance achieved by the Licensee

The number of cases in which compensation were payable andthe aggregate amount of the compensation paid

The number of claims made by the consumer against theLicensee for failure to meet the Guaranteed Standards ofPerformance and the action taken by the Licensee

The measures taken by the licensee to improve performance inthe areas covered by Guaranteed Standards and Licenseesassessment of the targets to be imposed for the ensuing year.


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Registration of Complaint

The licensee shall maintain a register for recording the complaintsreceived personally or phone or any other means available. Everycomplaint so received shall be recorded as Section no., name of thecomplainant, details of complaint, date and time of complaint. Thecomplaint Sl. No. shall be intimated to the complainant on the spot.

The record in the Register should be available for inspection anytime by any person on demand. The aim of maintaining this registeris to provide adequate service to the consumer and the requiredinformation to the Commission.


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Quality of Power Supply

Voltage Variations

The Licensee shall maintain the voltages at the point ofcommencement of supply to a consumer within the limitsstipulated hereunder, with reference to declared voltage:

In the case of Low/Medium Voltage, +6% and -6% In the case of High Voltage, +6% and -9%;

In the case of Extra High Voltage, +10% and -12.5%.

On receipt of a voltage variation complaint, the licensee shallverify and take further action to

Improve the voltage variations within 15 days of original

complaint if no expansion/enhancement of network isinvolved; Resolve the complaint within 120 days, in case of upto 11KV

and 180 days in case of upto 33KV. If it is beyond its control (i.e. due to transmission system) the

Licensee should intimate the consumer of such reason within

7 days.


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Harmonics

(i) The Licensee shall maintain the limits of harmonics as perthe stages specified hereunder:

Stage-1: The cumulative Total Voltage Harmonic Distortion(THDv) at the Point of Commencement of Supply

for each consumer connected at 132KV and above shallbe limited to 3%Stage-2: The cumulative Total Voltage Harmonic Distortion

(THDv) at the Point of Commencement of Supply foreach consumer connected at 33KV shall be limited to8%

Stage-3: The cumulative Total Voltage Harmonic Distortion(THDv) at the Point of Commencement of Supply foreach consumer connected at 11KV shall be limited to8%


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Complaints about meters

(i) The licensee shall inspect and check the correctness of the meterwithin 7 working days of receiving the complaint. If the meter is not

working including that it is stuck up, running slow, fast or creepingbeyond the limits, the Licensee shall replace the meter within 30 daysof receiving the original complaint if the meter belongs to theLicensee.

(ii) The Licensee shall replace burnt out meters within 30 working days

of removal of the meter after receiving the complaint if theburning of meter is not due to causes attributable to the consumerlike tampering, defect in consumers installation, meter getting wet,connecting unauthorized additional load by consumer etc.

(iii) If the meter is burnt due to reasons attributable to the consumer, heLicensee shall serve a notice to the consumer for recovery of cost ofthe meter within 7 days of detection, and shall replace the meterwithin 15 days of receiving the payment from the consumer and afternecessary corrective action is taken to avoid future damage to the

meter.


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Applications for New connections/Additional Load

i) For 230V/400V supplies:

The licensee shall deal with consumer's application for new connectionas follows:

(a) Within three days of receipt of application, the licensee shall send 3(three) clear days notice to the applicant for the purpose ofinspection of premises and fixation of point of entry of supplymains and the position of mains, cutouts or circuit breakersand meters.

(b) Estimate charges for providing connection and security depositrequired shall be intimated within one week after the point of entryof supply mains and the position of mains, cutouts or circuitbreakers and meter has been settled.


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ii) For H.T. supply up to 33KV and EHT supply:

The licensee shall deal with of consumer's application for new connectionas follows:

(a) If supply is requested to be given at H.T., the licensee shall respondwhether connection is feasible or not within 21 working days of application.

If feasible, licensee shall intimate voltage at which supply will be given andpoint of commencement of supply. The licensee shall intimate theconsumer seeking the new connection, estimated charges and timerequired for providing the new connection within 60 (sixty) working days ofnotifying feasibility of supply.


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(b) If supply is requested to be given at EHT, the licensee shallobtain the final reply regarding feasibility from the Transmissionlicensee and communicate the same to the applicant within 30working days of receipt of original application. The licenseeshall intimate the consumer seeking the new connection,estimated charges and time required for providing the newconnection within 60 (sixty) working days of notifying feasibilityof supply.

(c) Connection shall be provided within the estimated time, asintimated, after deposit of Estimated charges, submission ofTest Report by consumers, inspection by Supplier'sEngineer/Electrical Inspector and Agreement, if required. The

licensee shall, however, not be held responsible for delay, if any,for providing connection, if the same is on account of statutoryclearances, Rights of way, acquisition of land over whichlicensee has no reasonable control.


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Where Power supply Requires Extensionof Distribution Mains

Type of service connection

requested

Period from date of payment of

required security, within which

supply of electricity should beprovided

Low Tension (LT) supply (30) days

11KV supply (60) days

33KV supply (90) days


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The licensee shall give effect to transfer of ownership, change ofcategory and conversion of the existing services from Low Tensionto High Tension and vice-versa within the following time limits

(a) Title transfer of ownership - within 15 days of receipt ofapplication, with necessary documents and necessary fee, if any

(b) Change of category

Within 30 days from the single phase to Low Tension and vice-versa.

Within 60 days from the Low Tension to 11KV and vice-versa. Within 90 days from the Low Tension to 33KV and vice- versa.


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(i) The Licensee shall acknowledge the consumers complaintimmediately, if received in person and within 2 days, ifreceived by post. The licensee shall resolve the complaintregarding electricity bills within 30 days of its receipt.

(ii) In case the complaint is genuine and revision of bill alreadyissued becomes necessary, the due date for payment of billshall be reckoned from the date of receipt of revised bill forthe purpose of disconnection of supply or for levy ofadditional charges for belated payment.

Complaints about consumers bills


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Service area Compensation payable to affected consumer Manner of payment

Normal Fuse-off

Urban Areas Rs. 100 in each case of default Automatic

Other Areas

Line Breakdowns

Urban Areas Rs. 100 to each affected consumer To be Claimed

Other Areas

Distribution Transformer failure

Urban Areas Rs. 200 to each affected consumer To be Claimed

Other Areas

Period of scheduled outages

Maximum duration in a single stretch Rs. 200 to each affected consumer To be Claimed

Restoration of supply

Voltage Variations

No expansion/enhancement of network is involved Rs. 200 in each case of default Automatic

Up-gradation of distribution system is required Rs. 500 in each case of default

Harmonics

EHT connections To be decided by the Commission at appropriate time.

HT connections

Meter Complaints

Inspect and check correctness Rs. 100 in each case of default To be Claimed

Replace slow, creeping or stuck up meters Rs. 100 in each case of default Automatic

Replace burnt meters if cause not attributable to

consumer

Rs. 200 in each case of default Automatic

Replace burnt meters in all other casesApplication for new connection/additional load Connection feasible from existing network


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Service area Compensation payable to affected consumer Manner of payment

Network expansion/enhancement required for providing connection

Release of supply Low Tension (including agriculture) Rs. 100 for each day of default To be Claimed

Release of supply High Tension 11KV supply Rs. 500 for each day of default To be Claimed

Release of supply High Tension 33KV supply Rs. 500 for each day of default Automatic

Release of supply Extra High Tension services

Erection of Substation required for release of supply Rs. 1000 for each day of default Automatic

Transfer of ownership and conversion of service

Title transfer of ownership Rs. 100 for each day of default Automatic

Change of category

Conversion from LT 1-ph to LT 3-ph Rs. 100 for each day of default Automatic

Conversion from LT to HT and vice-versa Rs. 200 for each day of default Automatic

Resolution of complaints on consumer's bills

Resolution of complaint. Rs. 50 for each day of default Automatic

Reconnection of supply following disconnection

Urban Areas Rs. 100 for each case of default

Other Areas Automatic


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ENERGY AUDIT

Under the Act Energy Audit means the verification,monitoring and analysis of use of Energy including submission

of technical report containing recommendations for improving

Energy Efficiency with cost benefit analysis & action plan to

reduce energy consumption .

TYPE OF ENERGY AUDIT

1. Preliminary Energy Audit2. Targeted Energy Audit

3. Detailed Energy Audit

4. Investment Grade Energy Audit (IGEA)


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AREAS OF ENERGY AUDIT

Demand Side Management

Power Factor Improvement

Reactive Compensation

Harmonics study

Transformer & Motor Loading Survey Lighting Energy Audit & Lux Survey

Audit of Main Plant Equipment like HVAC, Air

Compressor, Boiler, DG set

ENCON Option listing with cost benefit analysis Energy Management System


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BENEFITS OF AN INDUSTRIAL ENERGY AUDIT

Energy Savings (Minimum 15% to 20%) Avoiding power factor penalties & environmental

compliance costs.

Quality improvements

Productivity improvements

Reduced Maintenance

Fewer Breakdowns

Better safety & Protection

A process for repeatable improvements.

PROCESS VS. EQUIPMENT

Equipment efficiency improvement : Max 5%

Process efficiency improvement : 15% to 30%


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In Ordnance Factory, Badmal there are 4 nos. of oil fired Boilers of

capacity 10 TPH, located at Boiler house -1 &2. In each boiler

house one boiler is operated for steam generation.

Per day consumption of water for steam generation is 23064

liters for boiler-1 & 23604 Liters for boiler-3. Water is fed from DMplant at ambient temperature 35 C.

For pre heating the feed water of the boiler from the ambient

temperature to 85 C, Solar water heating system is proposed to

be installed which will increase the temperature of water up to 85C, so as to supply this feed water to the boiler.

This Solar water heating system can be installed after the storage

water tank. The heated water can be fed to boiler through Boiler

Feed Pump (BFP). Total 480 Nos. of panels will be required for

heating of water @240 Nos. of panels for each boiler house.

OPTIMIZATION OF FO BY USE OF SOLAR WATER HEATING SYSTEM


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Solar Flat Plate Collector Array (Proposed)

Circulation pumps-2

nos. 1W + 1S (Proposed)

Soft water

tank 2 x 12000

Liter Capacity(Existing)

Hot Water

Storage Tank24000 Ltr.Capacity

(Proposed)

Deareator15000 Ltr.capacity(Existing)

BFPTo Boiler

80 - 85 Deg C

Water Flow Meter

Gate Valve

NRV

Pump

(Proposed)

Pump (existing)

SCHEMATIC DIAGRAM OF SOLAR WATER HEATING

SYSTEM


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1 Ambient temp. in C 352 Proposed Temp. rise of water in C 853 Temp. to be increased in C 504 Water Consumption in Ltr./Hr. 1922

5 Assuming operational Hours in Hr. 126 Water consumption in Ltr./Day 230647 Heat gain per day in Kcal 11532008 GCV of Furnace Oil in Kcal/kg 100009 Density of Furnace Oil 0.9337

10 Equivalent amount of Furnace Oil to be saved inLtr./Annum 37052.59

11 Annual cost Saving for FO in lacs 10.00412 Investment in lacs 28.6013 Simple pay back period 2.86

CONSERVATION OF FURNACE OIL BY INSTALLATION

SOLAR WATER HEATER


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In Ordnance Factory, Badmal each compressor control had to be manually set

with its own, independent control pressure band, matching with the plantsproduction. As the plant requirement is dynamic, the air demand varies. As the

air demand increases and additional compressors were brought on line, the

plant pressure fluctuated widely and the pressure band between the

compressors became progressively wider.

Further during lunch hour and during the closing hour, the requirement of

compressed air is significantly low, however the operator has to run the

compressor as he has little idea about the production requirement.

By installing PLC based central control system, CENTAC energy Master (CEM)

from Ingersoll and (or equivalent from other manufacturers), all compressors

will be utilized their optimum capability and thus reducing the operating period

of the compressors. The sequencers also performance time sharing functionsand automatically levels running hours among multiple compressors.

PLC control system utilizes a common highly accurate pressure transducer and

controller. The system operates all compressors in a common pressure control

span; the advantage is a very small pressure control range and energy saving.

The pressure control band can be lowered to 6.4 6.6 kg/cm2 range from theexisting range of 6.0 to 6.9 kg/cm2.

OPTIMIZATION OF COMPRESSED AIR BY USE OF CENTAC


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Total compressor load KW 540

Estimated power saving % 20

Power Saving KW 72

Time of operation in a day Hour 10

Assuming no. of working days in a year No. of days. 300

Annual energy saved KWh 216000

Annual financial saving Rs. 6,26,400.00

Investment required Rs. 12,00,000.00

Simple payback period In year 2 Years

COST BENEFIT ANALYSIS BY USE OF CENTAC IN COMPRESSOR

SYSTEMS


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DEMAND SIDE MANAGEMENT

The contract Demand of the National Library Building for

the consumer no- 1074001003 is at 900 KW. The average maximum demand of the building is at

463.68 at 0.75 PF.

Thus the contract demand / connected load are kept at a

very high value. The rate of demand charge is Rs.220 per KVA.

The average present monthly demand charge of National

Library Building is Rs.134760.19 Per Month.

Because of higher contract demand, the building has topay higher demand charges to the CESC.


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COST BENEFIT ANALYSIS FOR REDUCTION OF CONTRACT

DEMAND

Cost Benefit Analysis for Reduction of Contract Demand

Particulars Unit Value

Present Contract Demand KW 900

Present Monthly EnergyConsumption

KWh 1,56,370.20

Present Monthly EnergyCharge

Rs. Per Month 7,16,082.95

Present Monthly Energy Bill Rs. Per Month 7,92,009.73

Present Monthly DemandCharge

Rs. Per Month 1,98,000.00

Future Contract Demand KVA 650.00

Future Demand Charge Rs. Per Month 1,43,000.00

Future Monthly EnergyConsumption

KWh 3,66,271.03

Monthly Saving in DemandCharge

Rs. Per Month 55,000.00

Annual Saving in DemandCharge

Rs. Per Annum 6,60,000.00

Investment Required Rs. NILPayback Period Year Immediate


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REDUCTION OF LIGHTING LOAD

The Fluorescent tube lights in use presently in India are of

the T12 (40W) and T8 (36W).

T12 implies that the tube diameter is 12/8 (33.8mm), T8

implies diameter of 8/8 (26mm) and T5 implies diameter

of 5/8 (16mm).

This means the T5 lamp is slimmer than the 36W slim tubelight. The advantage of the T5 lamps is due to its small

diameter, luminary efficiency can be improved by about

5%. The luminous flux of T5 is 3200 lm compare to 2450

lm for T8 lamps. In National Library all the T12 and T8 FTLs are replaced by

T5 lamps.


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COST BENEFIT ANALYSIS FOR T12 FTL RETROFIT WITH

T5 FITTINGS


Present T12 FTLs No. 1875

No. of T5 type Fittingsrequired

No. 1875

Present KW KW 103.125To be KW KW 56.25

Saving in KW KW 46.875

Run hour /day HR 18

Annual Energy Saving KWH 253125

Annual Energy BillSaving

Lacs Rs. 11.77

Investment(@Rs.500/-per fitting)

Lacs Rs. 9.38

Simple PB Period Years 0.80

For (T12) FTL Fixtures


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COST BENEFIT ANALYSIS FOR T8 FTL RETROFIT WITH T5

FITTINGS


Present T8 FTLs No. 5199

No. of T5 type Fittings required No. 5199

Present KW KW 270.348

To be KW KW 155.97

Saving in KW KW 114.378

Run hour /day HR 18

Annual Energy Saving KWH 617641.2

Annual Energy Bill Saving Lacs 28.72

Investment(@Rs.500/- per fitting) Lacs 26.00



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REACTIVE LOAD MANAGEMENT

National Library, Kolkata has installed AUTO ON typecapacitor banks of 814 KVAR capacities in LT buses in order toimprove the PF to about 0.99 at present load condition. TheAuto ON type banks can take care of varying nature of loads in

Office & Non-Office hours by suitably switching on requiredcapacitor capacity to get the desired PF.

It is estimated that about annually saved amounting in EnergyBill to about Rs. 9.51 Lacs which can be saved per annum.


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COST BENEFIT ANALYSIS FOR INSTALLATION OF

CAPACITOR BANK

DETAILS UNIT VALUELoad KW 1100.00

Average Annualised PF 0.75

To be PF 0.99

Capacitor Required KVAR 814.00

Run Hour / Day HR/Day 18.00

Present monthly average energy bill Lacs 14.45

Monthly Energy Bill Saved because of PFimprovement Lacs 0.43Annual Saving in Energy Bill

Lacs

5.20

Annual PF Penalty and overdrawl penalty paidby the Consumer

Lacs 4.31Total Annual savings Lacs 9.51

Investment Lacs 8.14

Simple PB Period

Years

0.86

ENCON BY USE OF LED LIGHTING SYSTEMS


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In HPCL, Mumbai Refinery, it was proposed to replace the existing250W HPSV light fittings with 120 W Light Emitting Diode (LED)

street lights. and accordingly a demonstrative study with the newly

proposed LED fitting was carried out.

Make : SANARTI

Power Rating : 120 Watt

Supply Voltage : 170-270 V AC

Electrical Connection : Lead wire 1m long

Dispersion angle : 60 degree

Environment Protection : IP65

ENCON BY USE OF LED LIGHTING SYSTEMS

LUX & POWER MEASUREMENT WITH


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Locati

onRemark Volt Amp PF KW

THD

(V)

THD

(I)

B3,

AVE-B

250W HPSV

lamp was

ON

227.8 1.30.73

40.21 2.1% 16.5%

Location Lux at

Ground

level

Lux at 1

elevation

from

ground

level

Lux at 2

elevation

from

ground

level

Lux at 3

elevation

from

ground

level

Lux at 4

elevation

from

ground

level

Lux at 5

elevation

from

ground

level

J 22 25 26 27 28 30

K 36 37 42 45 50 55L 31 31 34 37 41 43

M 9 9 9 10 11 11

N 8 9 9 9 9 9

O 8 9 9 9 9 9

A 2 4 4 4 4 4

D 3 4 4 4 4 4

G 2 2 2 3 3 3

LUX & POWER MEASUREMENT WITH

EXISTING 250 W HPSV LAMP

LUX MEASUREMENT WITH NEW 120 W LED


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Locat

ion

Lux

atGroun

d

level

Lux at

1

elevatio

n from

ground

level

Lux at

2

elevatio

n from

ground

level

Lux at

3

elevatio

n from

ground

level

Lux at

4

elevati

on

from

ground

level

Lux at

5

elevati

on

from

ground

levelJ 43 48 52 55 59 65

K 45 48 54 56 58 62

L 33 35 36 37 38 40

M 8 9 9 10 11 13

N 8 8 9 11 11 11O 7 7 7 8 9 10

A 1 1 1 1 1 1

D 1 1 1 1 1 1

G 1 1 1 1 1 1

LUX MEASUREMENT WITH NEW 120 W LED

STREET LIGHTS

POWER MEASUREMENT WITH NEW 120 W LED


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Voltage (Max) Volt 218.5

Voltage (Min) Volt 216.9

Voltage (Avg.) Volt 217.2

Supply Frequency HZ 49.3

Current Amp 0.5

Power Factor 0.907 (lagging)

Power Consumption Watt 110.2

THD-V % 2.8%

THD-I % 12.8%

POWER MEASUREMENT WITH NEW 120 W LED

STREET LIGHTS

COST BENEFIT ANALYSIS OF REPLACEMENT OF 250 W


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Total Quantity of 250 W HPSV Street Light No. 430

No. of 120 W LED Fittings required

No.

430

Power Consumption in HPMV fittings Watt 210

Present KW KW 90

Measured Power Consumption in LED fittings Watt 110

To be KW after installation of LED fittings KW 47

Saving in KW KW 43Run hour /day HR 12

Annual Energy Saving KWH 187963

Average Energy Tariff Rs./ KWH 5.61

Annual Energy Bill Saving Lacs Rs. 10.54

Cost of the each LED Fittings Rs. 19000.0Installation Cost per lamp Rs. 1000.0

Total cost of replacement with one LED fittings Rs. 20000.0

Total investment for replacement with 430 nos. of LED

street LightRs. Lacs 86.0


COST BENEFIT ANALYSIS OF REPLACEMENT OF 250 W

HPSV STREET LIGHT WITH 120 W LED STREET LIGHT

VARIOUS OTHER INDUSTRIAL CASE STUDIES


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Replacement of Cooling Tower solid cell fan blade with Epoxy Coated Hollow

Energy Efficient Fan Blade at Rinfra-SPS

The CW system is open re-circulating type with an induced draft cooling tower.Circulating water pumps discharge is led to the condenser. Outlet is returned to

the cooling tower for cooling.

There are total ten numbers cooling tower cells which are fitted with individual

fans. During design, fans were made up of GRP solid fan blades.

During ENCON activity and vendor discussion it was revealed that, energyconservation opportunity is available and all cell fan blades are replaced with

Epoxy Coated Hollow Energy Efficient Fan Blade.

These cell fan blades are with reduced weight and designed for same air flow

with higher efficiency.Total investment : INR. 20, 00,533 /-

Annual Energy Savings: 1129602 KWH

Annual energy cost savings : INR. 25, 41,605/-

Power saving of 128.95 kW is achieved.




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Modifying Cooling Tower makeup system from Motor driven pumping to

Gravity system at Rinfra-SPS

For maintaining cooling tower basin level, Clarified water from the

clarified water reservoir is pumped by Cooling Tower make-up pumps and

fed to the cooling tower basin to maintain normal level in Cooling Tower

basin For maintaining cooling tower basin level, two Cooling Tower

makeup motors of 30 kW are installed, at a time only one pump is inservice.

As an energy conservation measure, system study is done for modifying

existing system to gravity system & system is taken in service from Feb 15,

2010.

Total investment : Rs. 2,44,444 /-

Annual Energy Saving: 199728 KWH

Annual energy cost savings : Rs. 4, 49,388/-

Power saved is 22.8 kW.




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Wind Ventilators

At Rinfra-SPS at different locations depending on the

heat load, motor operated ventilation systems are

installed. For adopting renewable energy

technologies, Rinfra - SPS has evaluated several

methodologies. After evaluating site requirement, it

was decided to change motor driven ventilation

system with wind driven ventilators.

Wind ventilators operating working principle is on

thermo-siphon.

Total investment : Rs. 3,20,645 /-Annual Energy Savings: 224431 KWH

Annual energy cost savings : Rs. 5, 04,970/-

Power saving of 4.27 KW per fan.



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Arresting Steam Leakages in Main Steam Lines

It have been noticed that leakage are not considered as aproblem till the steam required pressure for continuous

operation of plant is maintained by the process. Through

Leakages are considered as very minor loss, but a good

amount of energy can be saved by arresting leakages whichdoesnt require huge investment. It has been estimated that

a 3mm diameter hole on a pipeline carrying 7kg/cm2 steam

would waste 32.65 KL of fuel oil per year.

In Thermal Power Station leakage sealing improves the boiler

efficiency.

Annual Energy Saving: 5155500 KWH

Investment Required: Nil


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VARIOUS OTHER INDUSTRIAL CASE STUDIESInstallation of Automatic Temperature Controller in CT Fan

In cooling towers the temperature of cold water depends onthe factors namely heat load, ambient, relative humidity andambient air velocity. It was observed that the operations of the

cooling tower is not controlled based on the ambient climatic

conditions vis--vis temperature differential. As a result CT fans

were operating continuously without taking into account of the

inlet & outlet temperature variations. If outlet cooling

temperature is lower than the desired value, then natural

cooling is sufficient.

Annual Cost Saving: Rs. 3196800.00

Investment Required: Rs. 4000000

Payback Period: 15 months


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Application of Glass Filled Polymer Coating in CW PumpsCorrocoat fluiguide coating which is the glass flake filled polyester based

resin is applied to the impeller of cooling water pumps. The advantage of

impeller coating is as follows.

It improves efficiency & save energy

It reduces surface roughness The coating is hydrophobic in nature

Annual Cost Saving: Rs. 15466500.00

Investment Required: Rs. 30000000.00



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Cleaning Of Condenser Tubes Using Bullet Shots

The performance of condensers depends on efficiency of its tubes, based oncleanliness factor practice of its heat transfer surface, water flow and prevention of

air leakage.

The in efficient condenser leads to poor vacuum creation for the condensate. In a

thermal power station it is found full vacuum is not developing in unit 1 and 2 due

to the fact that they were installed in 1983 and due to aging factor condenser tubesare no longer capable of transferring the heat properly. Through discussion with

the plant managers it is understood that DM make up water consumption in unit 3

to 7 is on average 10 M/hr with full generation of 210 MW in each unit where as in

unit 1 and 2 the DM water consumption is about 15 m/hr with 110MW generation

in each unit. So they have done condenser cleaning by using Bullet shots so thatthe efficiency of the tubes have increased and unit #1 & 2 have consumed less

make up water than before.

Total Financial Saving: Rs. 51072000.00




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Energy saving by installation of VFD at HT/LT motors

In order to reduce the auxiliary consumption of units one no.

of medium voltage VFD at CEP-5A and 3 nos. of low voltage

VFD at seal air fan has been installed in a thermal power

station. The commissioning and trial operation of VFD has

been completed during January 2011.

Annual Energy Saving : 170712 KWH

Annual Financial Saving : Rs. 6145632.00




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Energy Monitoring MethodologyA well defined Energy Management Organization Structure


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GRIDCOs Power Handling Capacity = 2000 MW

CGPs Power Generation Capacity = 2000 MW Total Average Power Use = 4000 MW

Estimated Saving Potentials @ 10%= 400 MW

Energy Efficiency can avoid the present power deficit scenario and

load regulation can be avoided Energy Audit should be mandatory for all HT consumers having

contract demand above 110 KVA

Submission of Annual Energy Audit report and Specific Energy

Consumption report should be submitted to SDA

Joint verification of Financial Audit Report and Energy Audit

Report of all HT consumers will discourage power theft and AT&C

losses of DISCOM will be reduced.

Both State Govt. and OERC have a major role to play to bring

energy efficiency practices in Odisha.

ENERGY EFFICENCY IN ODISHA


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REC Mechanism Conceptual Framework

RE Generation

Sale at

preferential tariff Obligated Entities

Sale in REC

Framework

ElectricityComponent

Host Distribution

Utility at a pricenot more than

average pool price

Third Party sale atmutually agreed

prices

A CPP based onRenewable Energy

Sources

Sale through

Power Exchange

RenewableComponent (REC)

Sale throughPower Exchange


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REC REGULATIONSSALIENT FEATURESEligible Source

All sources recognised by MNRE under Renewable Energy CategoryTwo Categories of Certificates one for Solar and other for Non-Solar

Eligible Entities defined in RegulationsGrid Connected RE Power Projects having NO PPA at preferential tariff and received

accreditation certificate from State Agency

Shall sell electricity at Pooled cost of Power Purchase to distribution utility or at

mutually agreed price to any other licensee

Obligated EntitiesAs defined by SERC, distribution utility, OA User, Captive Consumer

States to amend existing RPO Regulations

REC Issuing AuthorityNational Load Despatch Centre to issue REC to Generator based on the EnergyInjection Report prepared by SLDC

Sale/Purchase of RECTransaction of REC shall take place at Power Exchanges


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RPO & COMPLIANCE REGULATION

OERC has published Renewable Purchase Obligation

(RPO) & Compliance Regulation. This is in line with CERC,NLDC, FOR scheme of RPO and has the mandate ofMNRE.

As per the Regulation GIRDCO and an Industry with coal

based CGP>5MW have to purchase Solar RenewableEnergy Certificate @ 0.1 %, Non solar REC @1.2% and Co-Generation REC @3.7% totaling 5% of their totalconsumption for FY 2011-12.

This % will keep on increasing progressively from 5% totune of 7% in FY 2015-16


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RPO TARGET

Year-wise

target

Minimum quantum of purchase in percentage

(in terms of energy consumption in the State in KWH)

Renewable Co-generation Total

Solar Non-solar

2011-12 0.10 1.20 3.70 5.0

2012-13 0.15 1.40 3.95 5.5

2013-14 0.20 1.60 4.20 6.0

2014-15 0.25 1.80 4.45 6.5

2015-16 0.30 2.00 4.70 7.0


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REC SCHEME & CALCULATION

Particulars Units For FY 2011-12 For FY 2012-13 For FY 2013-14 For FY 2014-15 For FY 2015-16

Assume CGP Capacity MW 250 250 250 250 250

Total MW Consumed by Industry from

CGP MW 150 150 150 150 150

The Total Energy Consumed by

Industry from CGP KWh 1,314,000,000 1,314,000,000 1,314,000,000 1,314,000,000 1,314,000,000

Solar RPO Obligation as per OERC

Regulation % 0.10% 0.15% 0.20% 0.25% 0.30%

Solar REC required to be purchased by

CGP KWh 1,314,000 1,971,000 2,628,000 3,285,000 3,942,000

Annual Cash Outgo due to

procurement of Solar REC from theExchange @ Rs.12.00 per KWh Rs. 15,768,000 23,652,000 31,536,000 39,420,000 47,304,000

The Capacity of SPV Plant Required MW 0.789473684 1.184210526 1.578947368 1.973684211 2.368421053

Non-Solar RPO Obligation as per

OERC Regulation % 4.90% 5.35% 5.80% 6.25% 6.70%

Non-solar REC required to be

purchased by CGP KWh 64,386,000 70,299,000 76,212,000 82,125,000 88,038,000

Annual Cash Outgo due toprocurement of Non-Solar REC in the

Exchange @1.50 per KWh Rs. 96,579,000 105,448,500 114,318,000 123,187,500 132,057,000

The Capacity of Non solar Power

Plant Required MW 9.1875 10.03125 10.875 11.71875 12.5625

Total Value of REC i.e. Annual Cash

Outgo of the Industry without any

Input Energy due to statutory

requirement of procurement of REC Rs. 112,347,000 129,100,500 145,854,000 162,607,500 179,361,000

REC Trading


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Electricity to Grid Electricity from Grid

ENERGY

A/c

Application to issue REC

Issuance

of REC

Confirmation of EA

RedemptionOf REC

RPOComplianceReporting

ComplianceMonitoring

RE- GeneratorAccreditation

REC Trading through Power Exchange

State Agency State Agency


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HOW TO FULFIL RPO

Purchase REC both solar and Non solar => We will

facilitate REC purchase on behalf of CGP. PTC shall carryout bidding through our net work in Exchange Platform onbehalf of CGP and Transaction shall be cleared throughCGP accounts.

Purchase Non solar REC and establish SPV PowerPlant=> We will provide technical consultancy forpreparation of TEFR, DPR and shall accredit and registerthe project REC scheme and Trade the solar REC in PX.

Establish both solar and Non Solar Power Project. => Wewill provide technical consultancy for preparation of TEFR,DPR and shall accredit and register the project REC

scheme and Trade the solar & Non Solar REC in PX.


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CBA OF SPV POWER PLANT

Units Generation Unit Value

Installed Capacity MW 2

Net Generation MU 3.3288Land Requirement Acres 10

Project Cost Crores Rs. 26

Tariff Components (Fixed Charge) Unit Value

O&M Expenses Rs. Lakh 18

Depreciation

Rs. Lakh

182Interest on Term Loan Rs. Lakh 227.5

Interest on Working Capital Rs. Lakh 14.015925

Total Fixed Cost Rs. Lakh 441.51593

Per Unit Tariff Components Unit Value

PU O&M Expenses Rs./kWh 0.5407354PU Depreciation Rs./kWh 5.4674357

PU Interest on Term Loan Rs./kWh 6.8342946

PU Interest on Working Capital Rs./kWh 0.4210504

PU Tariff Components Rs./kWh 13.263516

Levellised Tariff for a period of 20 years Rs./kWh 8.9460944Minimum Value of REC in Exchange Rs./kWh 12.00


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CBA OF BIOMASS POWER PLANT

Installed Capacity MW 10

Gross Generation MU 70.08

Net Generation MU 63.07

Tariff Components (Fixed Charge) UnitO&M Expenses Rs. Lakh 226.35

Depreciation Rs. Lakh 400.86

Interest on Term Loan Rs. Lakh 515.39

Interest on Working Capital Rs. Lakh 103.87

Return on Equity Rs. Lakh 0.00

Per Unit Tariff Components Unit

PU O&M Expenses Rs./kWh 0.36PU Depreciation Rs./kWh 0.64

PU Interest on Term Loan Rs./kWh 0.82

PU Interest on Working Capital Rs./kWh 0.16

PU Fixed Cost Rs./kWh 1.98

PU Biomass Cost Rs./kWh 1.37

PU Coal Cost Rs./kWh 0.49

PU LDO Cost Rs./kWh 0.08PU Water Cost Rs./kWh 0.00

PU Variable Cost Rs./kWh 1.94

PU Total Cost of Generation Rs./kWh 3.92

Energy Component CostRs./kWh

4.00

REC Component CostRs./kWh

1.50

Total Revenue Generation Rs./kWh 5.50

ABOUT POWER TECH CONSULTANTS


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ABOUT POWER TECH CONSULTANTS

Power Tech Consultants is a consulting house in thefields of power, energy, project management.

Power Tech Consultants undertakes Investment Grade Energy Audit (IGEA) Third party audit Consultancy on regulatory, power trading issues

PAT Audit

Power Tech Consultants provides Project Management consultancy Preparation of DPR/ TEFR of Power Projects

We have adequate no. of experienced consultants,certified Energy Auditor and Certified Energy Managerduly certified by Bureau of Energy Efficiency, Ministry ofPower, Govt. of India.


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State Designated Agency (SDA), Orissa

Chhattisgarh State Renewable Energy Development

Agency (CREDA)

Energy Efficiency Services Limited (EESL), Ministry of

Power, Govt. of India

Ministry of New & Renewable Energy, Govt. of India,

Orissa Electricity Regulatory Commission (OERC)

POWER TECH CONSULTANTS EMPANELLED WITH


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Ordnance Factory Badmal Limited (OFBL)

Madhya Pradesh Urja Vikas Nigam Limited (MPUVNL)

Federation of Indian Chambers of Commerce &Industry (FICCI)

National Productivity Council, Govt. of India (NPC)

Orissa Small Industries Corporation Ltd (OSIC)

POWER TECH CONSULTANTS EMPANELLED WITH

POWER TECH CONSULTANTS CLIENTS


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POWER TECH CONSULTANTS CLIENTS


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9 Regulatory Aspects of Standard of Performance of DISCOM and Increasing Energy Efficiency by Energy...

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