Andhra Power Sector Reforms...Sub category CPDCL EPDCL NPDCL SPDCL TOTAL 1 PTR LVs 33KV (or) 11KV...
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1 Andhra Power Sector Reforms -Energy Accounting and Boundary metering- August 27, 2010 Hyderabad
Transcript of Andhra Power Sector Reforms...Sub category CPDCL EPDCL NPDCL SPDCL TOTAL 1 PTR LVs 33KV (or) 11KV...
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Andhra Power Sector Reforms
-Energy Accounting and Boundary metering-
August 27, 2010
Hyderabad
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Contents
• Reform background
• Reform drivers
• Highlights of Reform Act
• Establishment of KERC
• GoK Actions
• Lessons learned
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Purpose and Approach
• Unbundled entities need to have transactions at arms length – for energy handled, common assets shared and other costs
• Working group formed to assess and prepare the implementation roadmap
• Boundary areas between T & D identified
• Principles to be followed in settling energy accounting between entities
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The Energy Billing Center The EBC is established in 1st April 2001 with DFID
funding.
This project is planned to be implemented in three phases Phase1 : T-D Billing based manual readings
Phase2 : T-D Billing to be done based on MRI data
Phase3 : On line metering data acquisition for billing
EBC deals with following major activities T-D Energy Certification
G-T Energy Certification
Transmission Losses Calculation
Discom to Discom Energy & Cost Settlement
Open Access Settlements within State
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G-T Interface metering points
Sr. No. Metering Point Type No. of Metering
Points
1 APGENCO-APTRANSCO 88
2 PGCIL/CGS 41
3 NTPC 4
4 INTER-STATE 7
5 IPPs 15
6 CPPs 5
7 APGPCL 6
8 132kV EHT PDs 12
G-T SUB-TOTAL: 178
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Location of G-T Meters
For APGENCO – At HV side of Gen T/F
For PGCIL/CGS – At LV side of Out going Fdr.
For NTPC – At HV side of Out going Fdr.
For IPPs, CPPs & – At HV side of Out going Fdr.
EHT PDs
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T-D Interface metering points (As on Feb’10)
S. No. Metering Point
Type Sub category CPDCL EPDCL NPDCL SPDCL TOTAL
1 PTR LVs 33KV (or) 11KV 249 106 152 195 702
2 EHT Consumers 220kV Industrial 4 3 2 0 9
3 EHT Consumers 132kV Industrial 41 34 18 17 110
4 EHT Consumers 132kV Rly.Traction 8 17 13 25 63
5 G-D -- 9 2 15 1 27
6 D-D -- 7 13 4 10 34
7 PDs (33kV,11kV) -- 52 27 9 60 148
DISCOM TOTAL 370 202 213 308 1093
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Location of T-D Meters
For Power T/Fs – At LV side
For EHT Consumers – At APTRANSCO
Sub-Stations
For NCE’s PDs – As per PPAs
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ANDHRA PRADESH TRANSMISSION
SYSTEM
(AS ON 31st AUGUST, 2008)400kV
220kV
132kV
33kV
CGS/PGCIL
G-T M.P. - (41)
220kV APGENCO
33kV PRIVATE DEVELOPERS
T-D M.P. - (134)
132kV EHT
CONSUMERS
T-D M.P. - (94)
220kV EHT
CONSUMERS
T-D M.P. - (7)
220kV INTER-STATE
132kV INTER-STATE
G-T M.P. - (1) G-T M.P. - (17)
G-T M.P.- (59) G-T M.P. - (6)
132kV TRACTION
FEEDERS
T-D M.P. - (61)
33kV LVs T-D M.P. – (609)
GEN
GEN
GEN
220kV IPPs (4)
GEN
G-T M.P. -
(13)
INTER-DISCOM
33kV T-D M.P. – (13)
400/220kV
220/132kV
132/33kV 220/33kV
GEN
132kV PRIVATE
DEVELOPERS (12)
G-T M.P. -
(12)
132kV IPP (2), cpp(1)
132/66kV
11kV
INTER-DISCOM
11kV T-D M.P. – (15)
132/11kV
11kV LVs M.P. – (51)
33kV LVs T-D M.P. – (12)
66kV LVs T-D M.P. – (1)
GENCO-DISCOM
11kV T-D M.P. – (17)
GENCO-DISCOM
33kV T-D M.P. – (9)
GEN11kV PRIVATE DEVELOPERS
T-D M.P. - (7)
GEN
220kV APGPCL (2)
G-T M.P. -
(6)
GEN
132kV APGENCO
G-T M.P. -
(3)
400kV APGENCO
GEN
G-T M.P. - (10)
GEN
220kV CPP (2)
G-T M.P. -
(4)
400kV NTPC SIMHADRI
GEN
G-T M.P. - (4)
G-T: 176, T-D: 1030, TOTAL METERING POINTS = 1206
ANDHRA PRADESH TRANSMISSION
SYSTEM
(AS ON 31st AUGUST, 2008)400kV
220kV
132kV
33kV
CGS/PGCIL
G-T M.P. - (41)
220kV APGENCO
33kV PRIVATE DEVELOPERS
T-D M.P. - (134)
132kV EHT
CONSUMERS
T-D M.P. - (94)
220kV EHT
CONSUMERS
T-D M.P. - (7)
220kV INTER-STATE
132kV INTER-STATE
G-T M.P. - (1) G-T M.P. - (17)
G-T M.P.- (59) G-T M.P. - (6)
132kV TRACTION
FEEDERS
T-D M.P. - (61)
33kV LVs T-D M.P. – (609)
GEN
GEN
GEN
220kV IPPs (4)
GEN
G-T M.P. -
(13)
INTER-DISCOM
33kV T-D M.P. – (13)
400/220kV
220/132kV
132/33kV 220/33kV
GEN
132kV PRIVATE
DEVELOPERS (12)
G-T M.P. -
(12)
132kV IPP (2), cpp(1)
132/66kV
11kV
INTER-DISCOM
11kV T-D M.P. – (15)
132/11kV
11kV LVs M.P. – (51)
33kV LVs T-D M.P. – (12)
66kV LVs T-D M.P. – (1)
GENCO-DISCOM
11kV T-D M.P. – (17)
GENCO-DISCOM
33kV T-D M.P. – (9)
GEN11kV PRIVATE DEVELOPERS
T-D M.P. - (7)
GEN
220kV APGPCL (2)
G-T M.P. -
(6)
GEN
132kV APGENCO
G-T M.P. -
(3)
400kV APGENCO
GEN
G-T M.P. - (10)
GEN
220kV CPP (2)
G-T M.P. -
(4)
400kV NTPC SIMHADRI
GEN
G-T M.P. - (4)
G-T: 176, T-D: 1030, TOTAL METERING POINTS = 1206
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EBC ACTIVITIES
Collection Monthly manual readings of
G-T and T-D interface meters.
Manual data feeding into Energy Billing
System.
Generation of T-D Monthly Energy Abstract
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T-D Manual Readings entering form in EBS
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Sample T-D Energy Certificate
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EBC ACTIVITIES Contd...
MRI data collection from G-T & T-D points
Validation of MRI data
Conversion MRI data into PRN format
Uploading of MRI data to Oracle DB
Comparison of Manual Vs MRI energies
Analysis of MRI data for missing points
Preparation of PDSM points report.
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Sample MRI data validation
MRI data
missing
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Sample PRN format of a Meter
"M Serial","AP003623"
"Location","MAHABOOBNAGA"
"ExtMulFac",360000.000
"Dates", "02-04-2007","02-04-27 ","02-04-2 007","02-04-2007","02- 04-2007","02-04-2007","01-04-2007
"Units", "KVA(E)" , "KVA(I)"," KVAr(Ld)" ,"KVAr(Lg)" ,"KW(E)" , "KW(I)" , "KVA(E)" , "KVA(I)"
"Interval", " ", " ","@ W(I)" ," @ W(I)" , "", " ", " ", " ","
"00:30", 0.00, 35856.00,0.00, 14472.00, 0.00, 32832.00, 0.00, 34560.00,
"01:00", 0.00, 35856.00,0.00, 14472.00, 0.00, 32832.00, 0.00, 21600.00,
"01:30", 0.00, 35424.00,0.00, 13824.00, 0.00, 32616.00, 0.00, 21816.00,
"02:00", 0.00, 34992.00,0.00, 13392.00, 0.00, 32400.00, 0.00, 34776.00,
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Sample PRN format of a Meter Version,3.1
M Serial,"AP003784"
Location,"K M PALLY"
ExtMulFac,360000.000
-1.0 indicates ALL POTENTIALS MISSING
Security: FAIL
"Dates", "01-09-2008","01-09-2008","01-09-2008","01-09-2008","01-09-2008","01-09-2008","31-08-2008","31-08-2008","31-08-2008","31-08-2008","31-08-2008","31-08-2008","30-08-2008","30-08-2008","30-08-2008","30-08-2008","30-08-2008","30-08-2008",
"Units", "KVA(E)" , "KVA(I)" ,"KVAr(Ld)" ,"KVAr(Lg)" , "KW(E)" , "KW(I)" , "KVA(E)" , "KVA(I)" ,"KVAr(Ld)" ,"KVAr(Lg)" , "KW(E)" , "KW(I)" , "KVA(E)" , "KVA(I)" ,"KVAr(Ld)" ,"KVAr(Lg)" , "KW(E)" , "KW(I)" ,
Interval, " ", " ","@ W(I)" ,"@ W(I)" , " ", " ", " ", " ","@ W(I)" ,"@ W(I)" , " ", " ", " ", " ","@ W(I)" ,"@ W(I)" , " ", " ",
"00:30", 31536.00, 0.00, 19008.00, 0.00, 25056.00, 0.00, 28080.00, 0.00, 14688.00, 0.00, 24192.00, 0.00, 25704.00, 0.00, 13608.00, 0.00, 21816.00, 0.00,
"01:00", 30888.00, 0.00, 18360.00, 0.00, 24840.00, 0.00, 27864.00, 0.00, 14688.00, 0.00, 23760.00, 0.00, 27216.00, 0.00, 14688.00, 0.00, 23112.00, 0.00,
"01:30", 29808.00, 0.00, 18144.00, 0.00, 23760.00, 0.00, 26784.00, 0.00, 14040.00, 0.00, 22680.00, 0.00, 26352.00, 0.00, 14040.00, 0.00, 22032.00, 0.00,
"02:00", 31104.00, 0.00, 18576.00, 0.00, 25056.00, 0.00, 27864.00, 0.00, 14472.00, 0.00, 23760.00, 0.00, 27216.00, 0.00, 14904.00, 0.00, 22896.00, 0.00,
"02:30", 31536.00, 0.00, 18360.00, 0.00, 25272.00, 0.00, 27648.00, 0.00, 14688.00, 0.00, 23544.00, 0.00, 27864.00, 0.00, 15120.00, 0.00, 23544.00, 0.00,
"03:00", 31104.00, 0.00, 18792.00, 0.00, 25056.00, 0.00, 29808.00, 0.00, 16200.00, 0.00, 25056.00, 0.00, 29808.00, 0.00, 15984.00, 0.00, 25056.00, 0.00,
"03:30", 33912.00, 0.00, 19440.00, 0.00, 27864.00, 0.00, 32832.00, 0.00, 17064.00, 0.00, 28080.00, 0.00, 33264.00, 0.00, 17280.00, 0.00, 28512.00, 0.00,
"04:00", 34344.00, 0.00, 19440.00, 0.00, 28296.00, 0.00, 33696.00, 0.00, 17280.00, 0.00, 28728.00, 0.00, 33696.00, 0.00, 17496.00, 0.00, 28728.00, 0.00,
"04:30", 33048.00, 0.00, 18792.00, 0.00, 27216.00, 0.00, 33696.00, 0.00, 17280.00, 0.00, 29160.00, 0.00, 33912.00, 0.00, 17496.00, 0.00, 29160.00, 0.00,
"05:00", 33480.00, 0.00, 18792.00, 0.00, 27648.00, 0.00, 34344.00, 0.00, 17280.00, 0.00, 29592.00, 0.00, 34344.00, 0.00, 17280.00, 0.00, 29592.00, 0.00,
"05:30", 34776.00, 0.00, 19224.00, 0.00, 28944.00, 0.00, 33912.00, 0.00, 16848.00, 0.00, 29376.00, 0.00, 35208.00, 0.00, 17712.00, 0.00, 30456.00, 0.00,
"06:00", 34776.00, 0.00, 19224.00, 0.00, 29160.00, 0.00, 32832.00, 0.00, 16632.00, 0.00, 28296.00, 0.00, 33912.00, 0.00, 17064.00, 0.00, 29376.00, 0.00,
"06:30", 30888.00, 0.00, 17928.00, 0.00, 25272.00, 0.00, 29808.00, 0.00, 15552.00, 0.00, 25704.00, 0.00, 25488.00, 0.00, 14256.00, 0.00, 21168.00, 0.00,
"07:00", 27000.00, 0.00, 16632.00, 0.00, 20952.00, 0.00, 28728.00, 0.00, 15120.00, 0.00, 24192.00, 0.00, 21168.00, 0.00, 12744.00, 0.00, 16848.00, 0.00,
"07:30", 22896.00, 0.00, 14904.00, 0.00, 17496.00, 0.00, 25704.00, 0.00, 13608.00, 0.00, 21816.00, 0.00, 9288.00, 0.00, 5616.00, 0.00, 7344.00, 0.00,
"08:00", 26136.00, 0.00, 15552.00, 0.00, 20952.00, 0.00, 27432.00, 0.00, 14040.00, 0.00, 23760.00, 0.00, 14256.00, 0.00, 8208.00, 0.00, 11664.00, 0.00,
"08:30", 32832.00, 0.00, 18360.00, 0.00, 27432.00, 0.00, 28296.00, 0.00, 13824.00, 0.00, 24624.00, 0.00, 17496.00, 0.00, 9288.00, 0.00, 14904.00, 0.00,
"09:00", 36072.00, 0.00, 20304.00, 0.00, 29592.00, 0.00, 31968.00, 0.00, 15120.00, 0.00, 28080.00, 0.00, 18792.00, 0.00, 10584.00, 0.00, 15552.00, 0.00,
"09:30", 39096.00, 0.00, 19224.00, 0.00, 34128.00, 0.00, 34776.00, 0.00, 16416.00, 0.00, 30672.00, 0.00, 31968.00, 0.00, 17280.00, 0.00, 26784.00, 0.00,
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Sample MRI vs. Manual Energies Report
Load
Survey Start End diff Remarks
1
A.P.Carbides (220kV Kurnool)
16MVA 132/33 kV Transformer#1 AP003592 HH174729 3.12404 3.10332
2
A.P.Carbides (220kV Kurnool)
15MVA 132/33 kV Transformer#2 AP003602 HH174729 6.73038 6.72744
3
Achampet 16MVA 132/33 kV
Transformer#1 KAB01909 HH174690 3.96348 3.94159
4
Achampet 16MVA 132/33 kV
Transformer#2 KAB01923 HH174690 4.0503 4.02841
5
Adoni 16MVA 132/33 kV
Transformer#1 AP003590 HH174720 5.35392 5.32908
6
Adoni 31.5MVA 132/33 kV
Transformer#2 KAU05194 HH174720 8.2848 8.304
7
Adoni 16MVA 132/11 kV
Transformer#3 AP003603 HH174720 0.84586 0.8526
8
Alampur 16MVA 132/33 kV
Transformer#1 GEC05766 HH208655 2.66235 2.6555
August 2008 - Manual/MRI Energies(MU) Comparison Statement for APCPDCL
S.No. Transfer Point Meter No MRI No
Energy (MU)
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EBC ACTIVITIES Contd...
Transmission loss calculation in APTRANSCO
network based on MRI data
This is one of the input for calculation of T&D
Loss.
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Sample Transmission Loss statement INPUT NET ENERGY (MU) OUTPUT
APGENCO TOTAL 2143.51 DISCOM MU
THERMAL 1705.22
220kV/33kV,132kV/33kV,132/11kV
Power Tr. & 220kV,132kV EHT
Feeders
HYDEL 438.29 CPDCL 2053.67
C.G.S EPDCL 636.81
CGS ( Injection at AP-Periphery) 1213.04 NPDCL 767.01
NTPC-SIMHADRI 639.49 SPDCL 975.34
APGPCL TOTAL 104.07 Total 4432.82
APGPCL Stage-I 23.41
APGPCL Stage-II 80.67
IPPs TOTAL 401.59 Losses MU
GVK 86.67 With in State 184.73
Spectrum 87.75 Total Losses 184.73
Lanco 149.66
Reliance 78.03 % Tr. Losses 4.00
VGPL -0.53
Gowthami 0.00
Konaseema 0.00
M.P.Ps TOTAL 7.79
LVS -0.04
Srivatsa 7.83
CPPs TOTAL 25.07
HWP 7.81
NBFA # 7.18
VSP 10.07
NCEs (132kv
above) TOTAL 42.25
Clarion Power Corporation Ltd 4.16
Ganapathi Sugars Ltd. 6.87
GMR Technologies Ltd. 3.52
Kakatiya Cement & Sugar Industries Ltd. 5.86
Nagarjuna Green Power Ltd. (NGPL) 4.39
Sagar Sugar & Allied Products Ltd. 4.24
Jeypore Sugars Ltd. 3.80
Nizam Deccan Sugars Ltd. 9.42
Others
(132 Kv PDs) TOTAL 40.74
R.V.K. Energy Pvt. Ltd 5.50
Sriba Industries Ltd. 6.28
Rain Calcining Ltd. 28.96
TOTAL INPUT IN MU 4617.55
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EBC ACTIVITIES Contd... As Per G.O.Ms.58 Dt. 07-06-2005
APTRANSCO relieved from all trading activities w.e.f
10th June 2005.
All PPAs with APTRANSCO were vested on DISCOMs
Under 3rd transfer scheme.
Further all Generation Capacities have been allocated
to Discoms as follows:
CPDCL: 43.42% (46.06%*) EPDCL:16.89% (15.80%*)
SPDCL: 22.83% (22.27%*) NPDCL:16.86% (15.87%*)
(* values are new % allocations as per G.O.Ms No.53,
Dtd.28-4-2008)
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EBC ACTIVITIES Contd...
From 10th June 2005 EBC started doing D-D
Energy and Cost settlement on15 mints Interval.
For which IBSS model has been developed by
M/s. Deloitte Consultants.
Further IBSS is upgraded in Advanced Java
application (FBSS).
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EBC ACTIVITIES Contd...
D to D Settlement Activities: (Inputs Preparation)
APGENCO stations Variable Costs from Power
Purchase wing (APPCC)
SLBPH Energy Input and its VC from CE/ Comml./
APPCC
Inter State Power Purchase Costs from Power Purchase
wing (APPCC)
Daily Generators/Discoms schedules from SLDC wing
Collection of REA data from SRPC.
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EBC ACTIVITIES Contd...
Discom to Discom Settlement Activities:
Coordinating APBSC meeting for review and certification
of D-D energy and cost settlement.
Submission of APBSC approved D-D settlements reports
to APPCC
On approval of D-D settlement reports by APPCC the
same will be sent to Dy.CCA (PP,S&BR) of APPCC for
further action
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IBSS WORKING MODALITY
PDSM
Inputs
Settlement
Calculation Module
Report
Generation Module
EBS II
Inputs
System
Outputs
DCM-1
Transmission Loss
& Pricing Module
Unscheduled
Interchange
Module
DCM-2
Imbalance Pricing
Module
REA
Inputs
RAC
Inputs
SLDC
Inputs
PPA
Inputs
INPUTS EBS
IBSS
OUTPUTS
Ex-Ante Price
Signal Module
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EBC ACTIVITIES Contd...
Implementation of IBSC for OA Users as per APERC
Regulation No.2 of 2006.
OA Users System Software development is under
progress
Procurement of Hardware for web based OA application
is under progress.
Presently Settlement is being done for M/s. SPPL
(OAG) and M/s. Zuari Cements Ltd.
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Open Access System Flow
Master Data
Inputs Schedule Inputs Actual Inputs
Net Capacities calculations at exit
point after Re-allocation of schedules
Settlement
Module
Reports
Module
Data
Substitution
Model
Missing
MRI
data
No
Yes
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Lessons Learnt
• Created a system that ensures bulk energy flows – reduced dis-agreements between T & D, as well as intra-Discoms
• System ready for introducing “Open Access” – market creation
• System congenial to help in moving from single buyer to multi-buyer
• Helps in load research and understanding the load duration details for a Discom
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Thank you
