1. “ Open access / Power Exchange Regulations/experiences of SR ”
PRESENTATION ON
“ Open access / Power Exchange Regulations/experiences of SR ” by
P.BHASKARA RAO ,DGM
SRLDC, Bangalore

2. PRESENTATION OVERVIEW
ELECTRICITY ACT 2003 –STIPULATIONS ON OPEN ACCESS
OPEN ACCESS – REGULATIONS BY CERC
SHORT TERM OPEN ACCESS – EXPERIENCES SO FAR
SHORT TERM OPEN ACCESS – CASE STUDIES
POWER EXCHANGE REGULATIONS
QUANTUM OF POWER EXCHANGES WITH SR
CHALLENGES AHEAD
400 MU CONS IN A DAY-1.5% IS 6 MU, 2190 MU IN A YEAR, 2/UNIT IS 4400 MILLION RUPEES IS 440 CRORE RUPEES

3. OPEN ACCESS REGULATIONS

4. CERC Open Access Regulations, 2008
3. Subject to any other regulations specified by the Commission, the long-term customer shall have first priority for using the inter-State transmission system for the designated use. These Regulations shall apply for utilization of surplus capacity available thereafter on the inter-State transmission system by virtue of-
(a) Inherent design margins;
(b) Margins available due to variations in power flows;
(c ) Margins available due to in-built spare transmission capacity created to cater to future load growth or generation addition:

5. OPEN ACCESS IN INTER-STATE TRANSMISSION
Implemented w.e.f. 6-May-2004
Products –
Long term Access
Short term Access
Monthly
Advance
First Come First Serve
Day ahead
Same day transactions
Permits usage of spare transmission capacity through a transparent process
Offers choice and freedom to buy & sell power

6. CERC Open Access Regulations, 2008
Effective
Regulations cover only Short-term Open Access
Transactions categorized as Bilateral and Collective (through PX)
Earlier Products of Short-Term retained under Bilateral Transactions
Nodal Agency
Bilateral : RLDCs
Collective : NLDC

7. CERC Open Access Regulations, 2008
Transmission Charges moved from “Contract Path” to “Point of Connection”
Both Buyers and Sellers of Collective transactions to bear transmission charges and absorb transmission losses
Inter-Regional links -No Separate treatment.
Emphasis on “Scheduling” rather than “Reservation”
SLDC consent mandated along with application
In case of Congestion – e-Bidding without Price Cap
Exit Option provided with payment of up to 5 days open access charges.
Moving towards empowerment of SLDCs

8. Transparency - Information Sharing
Available Transfer Capacity (ATC) -3 months ahead
Past & Current Transactions
Injection & Drawal Schedules
Un-requisitioned Surplus
Frequency Trend
Urgent market information – unit tripping, load crash, contingencies
52 week ISTS pooled losses
STOA Rate / Procedures for capacity reservation 8

9. Regulation 2004 of CERC Regulations on Short-Term Open Access
( to )
Open Access Duration
- Up to One year maximum single application possible
ST Rate
- in Rs/MW/Day Min. Charges for one day
Transmission Charges
a. Intra Regional – 25% of Long Term Charges
b. Inter Regional – 25% of Long Term Charges
RLDC Charges
a. Application fee – Rs. 5000/-
b. Scheduling Charges
– Rs. 3000/day for each RLDC involved
c. Handling &Service Charges % of total charges
Congestion Management E-Bid without price cap

10. - Up to three months -single application possible ST Rate
Regulation 2004 (Amendment 2005)of CERC Regulations on Short Term Open Access
( to )
Open Access Duration
- Up to three months single application possible
ST Rate
- in Rs/MW/Day
- Charges as per continuous block of up to 6 hours, 12 hours,
and more than 12 hours
Transmission Charges
a. Intra Regional – 25% of Long Term Charges
b. Inter Regional – 50% of Long Term Charges
RLDC Charges
a. Application fee – Rs. 5000/-
b. Scheduling Charges
– Rs. 3000/day for each RLDC involved
c. Handling &Service Charges Nil
Congestion Management E-Bid without price cap

11. Regulation 2008 of CERC Regulations on Short Term Open Access
(From )
Open Access Duration
- Bilateral -Up to 3 months separate application for each month
Collective: -Only Day ahead
ST Rate
- in Rs/MWh Based on Scheduled Energy
Transmission Charges
Bilateral:
Rs.30/MWh – intra- regional
Rs.60/MWh – Between adjacent regions
Rs90/MWh – Wheeling through one or more region
Collective Transactions (Px):
-Rs. 30/MWh for each point of injection and drawal

12. Regulation 2008 of CERC Regulations on Short Term Open Access
(From )
RLDC Charges
Bilateral:
a. Application fee – Rs. 5000/-
b. Scheduling Charges
– Rs. 2000/day for each RLDC involved
c. Handling & Service Charges –Nil
Collective Transactions:
– Rs. 5000/day to NLDC for each State involved ; -NLDC to Share with RLDCs
Congestion Management
Bilateral: E-Bid without price cap
Collective: NLDC in coordination with Px

13. UI vs STOA market (All regions)
100% power market
92% long term market
Principles of STOA & LTOA should be similar. 5%
UI market 3%
STOA/PX market

14. All India basis 14

15. All India basis

16. All India basis

17. Intra and Inter Regional Transactions

18. STOA CHARGES COLLECTED BY RLDCS
DURING THE YEAR
All figures in Crores of Rs.
RLDC
PROCESSING
FEE
Operating Charges
CTU
Charges
NRLDC
2.20
9.43
149.75
SRLDC
0.50
1.78
44.33
ERLDC
0.09
0.48
3.90
NERLDC
0.05
0.39
2.70
WRLDC
1.95
4.82
61.16
TOTAL
4.80
16.90
261.85

19. STOA – SUCCESS STORY Developed in consultation with all stakeholders
Applications Processed (Since Beginning) > 20,000 No.
Volume (Approved Energy) (Since Beginning) > 90BUs
Applications Approved > 95 %
Refusal/Non-consent by SLDCs > %
Refusal due to system constraints < 0.5 % 19

20. Robust Financial Settlement System Near Dispute free implementation
STOA – SUCCESS STORY
Robust Financial Settlement System
Near Dispute free implementation
Logistics/infrastructure -In-house
Confidence Building & Dissemination of knowledge 20

21. STOA – Encouraging facts
Transactions between extreme corners of the country
RGCCPP ( Kayamkulam) to PSEB
Arunachal Pradesh(NER) to PSEB
TNEB to J&K
Most of the Captive Generating plants used STOA and helped in meeting the demand.
Ugar Sugars (KAR), Godavari Sugars (KAR)
NCS Sugar(ANDHARA), Indorama ( MAH)
Some of the states Simultaneous Buy & Sell on same day
Transactions from few MW to hundreds of MW
Improved performance of Generating Plants
Diversity being gainfully utilized
Enriching experience …. Still a long way to go …
Max transfer 2780 on a day … 11-Aug-06 …. 21

22. STOA CASE KAYAMKULAM RGCCPP, NTPC to PSEB
150 MW for 31 days on Round the Clock basis

23. STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS 150MW AT RGCCPP EXBUS POINT for 31 daysNR
CUSTOMER: NVVNL
TRADER: NVVNL
HVDC BACK TO BACK AT VINDHYACHAL IN WR
INJECTING UTILITY KYCPP,KSEB
DRAWEE UTILITY PSEB WR
INTERVENING REGION WR
HVDC BACK TO BACK AT BHADRWATHI IN WR
INTERVENING REGIONAL LINK
SR-WR
WR-NR SR
INTERVENING STATE TRANSMISSION UTILITY KSEB
KERALA
CAPACITY APPROVED MW
DAILY PERIOD HRS
KAYAMKULAM RGCCPP NTPC)

24. STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS 150MW AT RGCCPP EXBUS POINT for 31 daysNR
EXPORT AT RGCCPP BUS 150 MW
HVDC BACK TO BACK AT VINDHYACHAL IN WR
AT KERALA PERIPHERY MW
LOSSES IN KERALA % WR
HVDC BACK TO BACK AT BHADRWATHI IN WR
LOSSES IN SR %
AT SR-WR PERIPHERY MW SR
LOSSES IN WR %
AT WR-NR PERIPHERY MW
KERALA
LOSSES IN NR %
PSEB RECIEVES MW
KAYAMKULAM RGCCPP(NTPC)

25. STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS 150MW AT RGCCPP EXBUS POINT for 31 days
APPLICATION PROCESSING FEE
Rs 5000 PER TRANSACTION NR
SCHEDULING CHARGES PER DAY(as per earlier regulations)
Rs 3000 FOR SRLDC
Rs 3000 FOR WRLDC
Rs 3000 FOR NRLDC
Rs 1000 FOR KSEB
HVDC BACK TO BACK AT VINDHYACHAL IN WR WR
HVDC BACK TO BACK AT BHADRWATHI IN WR SR
TRANSMISSION CHARGES PER MW PER DAY
Rs 843 FOR CTU-SR
Rs 1311 FOR SR-WR LINK
Rs 357 FOR CTU-WR
Rs 600 FOR WR-NR LINK
Rs 594 FOR CTU-NR
Rs FOR KSEB
TOTAL TRANSMISSION CHARGE PER UNIT 18.5/. Ps…
KERALA
Details
KAYAMKULAM RGCCPP(NTPC)

26. STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS 150MW AT RGCCPP EXBUS POINT for 31 days
APPLICATION PROCESSING FEE(as at present)
Rs 5000 PER TRANSACTION
PSEB NR
SCHEDULING CHARGES PER DAY
Rs 2000 FOR SRLDC
Rs 2000 FOR WRLDC
Rs 2000 FOR NRLDC
Rs 2000 FOR KSEB
HVDC BACK TO BACK AT VINDHYACHAL IN WR WR
HVDC BACK TO BACK AT BHADRWATHI IN WR SR
TRANSMISSION CHARGES PER MWHR
Rs 90 FOR Bilateral Wheeling
through one or more region
Rs 30 FOR KSEB
TOTAL TRANSMISSION CHARGE PER UNIT 12.2/. Ps…
KERALA
Details
KAYAMKULAM RGCCPP(NTPC)

27. SHORT TERM CHARGES FOR TRANSACTION OF RGCCPP – PSEB OF NVVNL (150 MW) as per earlier regulations
BACK

28. CALCULATION FOR THE SHORT TERM CHARGES FOR THE TRANSACTION OF RGCCPP – PSEB OF NVVNL (150 MW)
BACK

29. Typical Approvals- Captive Power Plants
Captive Power Plant
Quantum( MW)
Eastern Region
NBVL(OPTCL) 27
SAIL-DSP(DVC) 20
TISCO(DVC) 60
Bhushan Steel 25
J.P Cement (Rewa) 5
Western Region
Indo Rama synthetics 22
PSKL
10-30
Southern Region
Renuka Sugar
Vishwanath Sugar
7.5
Godavari Sugar
Ugar Sugar
Jindal Steel
200
Nav Bharat 50
NCS Sugar 13

30. STOA CASE
APTRANSCO to MPSEB
100 MW for One day
from 0000 to 0600 hrs.

31. HVDC BACK TO BACK AT BHADRWATHI IN WR
APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0600 HRS ) 100 MW AT INJECTION POINT for 1 day AP
WR GRID MP
HVDC BACK TO BACK AT BHADRWATHI IN WR
CUSTOMER: NVVNL
TRADER: NVVNL
INJECTING UTILITY APTRANSCO
DRAWEE UTILITY MPSEB
INTERVENING REGIONAL LINK
SR-WR
CAPACITY APPROVED MW
DAILY PERIOD HRS
DATE OF COMMENCEMENT
DATE OF EXPIRY

32. HVDC BACK TO BACK AT BHADRWATHI IN WR
APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0600 HRS ) 100 MW AT INJECTION POINT for 1 day AP
WR GRID MP
HVDC BACK TO BACK AT BHADRWATHI IN WR
EXPORT AT AP MW
LOSSES IN SR %
AT SR PERIPHERY MW
CTU
LOSSES IN WR %
MP RECIEVES MW
TOTAL LOSSES FOR
TRANSACTION MW

33. HVDC BACK TO BACK AT BHADRWATHI IN WR
APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0600 HRS ) 100 MW AT INJECTION POINT for 1 day AP
WR GRID MP
HVDC BACK TO BACK AT BHADRWATHI IN WR
APPLICATION PROCESSING FEE
Rs 5000 PER TRANSACTION
SCHEDULING CHARGES PER DAY
Rs 3000 FOR SRLDC
Rs 3000 FOR WRLDC
TRANSMISSION CHARGES PER MW PER DAY
Rs FOR CTU-SR
Rs FOR SR-WR LINK
Rs FOR CTU-WR
TOTAL TRANSMISSION CHARGE PER UNIT 33Ps/.
NEW
MORE DETAILS

34. CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF APTRANSCO – MPSEB OF NVVNL (100 MW)
BACK

35. CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF APTRANSCO – MPSEB OF NVVNL (100 MW)
BACK

36. CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF APTRANSCO – MPSEB OF NVVNL (100 MW)
BACK

37. Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008) S.
No.
Old Regulations
( to )
Amended Regulations
(w.e.f to )
Regulations, 2008
(w.e.f ) 1.
Open Access Duration
- Up to One year maximum
- single application possible
- Up to Three Months max.
Bilateral
-Up to 3 months
separate application for each month
Collective:
Only Day ahead 2.
ST Rate
- in Rs/MW/Day
- Min. Charges for one day
- in Rs./MW/Day
-Charges as per continuous block of up to 6 hours, 12 hours, and more than 12 hours
Rate
-in Rs/MWh
- Based on Scheduled Energy

38. Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008) S.
No.
Old Regulations
( to )
Amended Regulations
(w.e.f to )
Regulations, 2008
(w.e.f ) 3.
Transmission Charges
a. Intra Regional – 25% of
Long Term Charges
b. Inter Regional – 25% of
a. Intra Regional – 25% of Long Term Charges
b. Inter-Regional - 50% of
Transmission Charges: Bilateral:
Rs.30/MWh – intra- regional
Rs.60/MWh – Between adjacent regions
Rs90/MWh – Wheeling through one or more region
Collective Transactions (Px):
-Rs. 30/MWh for each point of injection and drawal 4.
RLDC Charges
a. Application fee – Rs. 5000/-
b. Scheduling Charges
– Rs. 3000/day for each RLDC involved
c. Handling &Service Charges
- 2% of total charges
b. Scheduling Charges
c. Handling & Service Charges
– Nil
RLDC Charges :
Bilateral:
– Rs. 2000/day for each RLDC involved
c. Handling & Service Charges -Nil
Collective Transactions:
– Rs. 5000/day to NLDC for each State involved ; -NLDC to Share with RLDCs

39. Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008) S.
No.
Old Regulations
( to )
Amended Regulations
(w.e.f to )
Regulations, 2008
(w.e.f ) 5.
Retention by CTU
a. Intra Regional – 25% of
Charges collected
b. Inter Regional – 25% of
c. Balance disbursed to
States
Retention by CTU
a. Intra Regional - 25% of Charges Collected
b. Inter Regional % of Charges collected
c. Balance disbursed to States
25% to be retained by CTU
Balance disbursed to States 6.
Congestion Management
- E-Bid without price cap
- E-Bid with price cap
Bilateral:
Collective:
- NLDC in coordination with Px

40. WBSEB to AJMER (Rajasthan)
STOA CASE Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008)
WBSEB to AJMER (Rajasthan)
20 MW for 27 days
from 0000 to 1700 hrs. and 2300 to 2400 hrs.

41. WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND HRS) 20 MW FROM to
HVDC BACK TO BACK AT VINDHYACHAL IN WR
CUSTOMER: NVVNL
TRADER: NVVNL
RAJASTHAN WB
INJECTING UTILITY WBSEB
AJMER NR
DRAWEE UTILITY AJMER (DISCOM)
INTERVENING REGION SR & WR ER
INTERVENING REGIONAL LINK
ER-SR
SR-WR
WR-NR WR SR
HVDC BACK TO BACK AT BHADRWATHI IN WR
INTERVENING STATE TRANSMISSION UTILITY RRVPN
CAPACITY APPROVED MW
DAILY PERIOD & hrs
HVDC BACK TO BACK AT GAZUWAKA IN SR
DATE OF COMMENCEMENT
DATE OF EXPIRY

42. WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND HRS) 20 MW FROM to
HVDC BACK TO BACK AT VINDHYACHAL IN WR
EXPORT AT WB 20 MW
LOSSES IN ER %
AT ER-SR PERIPHERY MW NR
RAJASTHAN WB
LOSSES IN SR %
AJMER
AT SR-WR PERIPHERY MW ER
LOSSES IN WR % WR
AT WR-NR PERIPHERY MW SR
LOSSES IN NR %
HVDC BACK TO BACK AT BHADRWATHI IN WR
AT NR-RAJ.PERIPHERY MW
LOSSES IN RAJASTHAN 3%
AJMER RECIEVES MW
HVDC BACK TO BACK AT GAZUWAKA IN SR
TOTAL LOSSES FOR TRANSACTION
2.9 MW

43. WBSEB - AJMER WHEEL THROUGH SR (0000 HRS – 1700 HRS AND HRS) 20 MW AT INJECTION POINT FROM to
HVDC BACK TO BACK AT VINDHYACHAL IN WR
APPLICATION PROCESSING FEE
Rs 5000 PER TRANSACTION
RAJASTHAN NR WB
SCHEDULING CHARGES PER DAY
Rs 3000 FOR ERLDC
Rs 3000 FOR SRLDC
Rs 3000 FOR WRLDC
Rs 3000 FOR NRLDC
Rs 3000 FOR RAJASTHAN
AJMER ER WR SR
TRANSMISSION CHARGES PER MW PER DAY
Rs FOR CTU-ER
Rs FOR ER-SR LINK
Rs FOR CTU-SR
Rs FOR SR-WR LINK
Rs FOR CTU-WR
Rs FOR WR-NR LINK
Rs FOR CTU-NR
Rs FOR RAJASTHAN
HVDC BACK TO BACK AT BHADRWATHI IN WR
NEW
HVDC BACK TO BACK AT GAZUWAKA IN SR
TOTAL TRANSMISSION CHARGE PER UNIT 34.15Ps/.
MORE DETAILS

44. CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF WBSEB – AJMER(RAJASTHAN) (20 MW)
BACK

45. CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF WBSEB – AJMER(RAJASTHAN) (20 MW)
BACK

46. CALCULATION FOR THE SHORT TERM CUSTOMER FOR THE TRANSACTION OF WBSEB – AJMER(RAJASTHAN) (20 MW)
BACK

47. Unscheduled Inter-change (UI) Charges
Any mismatch between the scheduled and the actual drawal at drawal points and scheduled and the actual injection at injection points for the intra- State entities shall be determined by the concerned State Load Despatch Centre and covered in the intra-State UI accounting scheme.
Unless specified otherwise by the concerned State Commission, UI rate for intra-State entity shall be 105% (for over-drawals or under generation) and 95% (for under-drawals or over generation) of UI rate at the periphery of regional entity.

48. Development of the Power Market in India through OA & PX
Section 66, IE Act 2003
National Electricity Policy, 12-Feb-2005, Para 5.7.1(d)
Implementation of Inter-State ABT :
Metering, Scheduling and Settlement
Introduction of Open Access in Inter State Transmission : May 2004
Development of PX
Staff paper by CERC : July 2006
Public hearing : December 2006
Guidelines for setting up PX : February 2007
Approval for setting up first PX : MCX, August 2007
One PX (Indian Energy exchange) started functioning
Approval given for 2nd power exchange by Hon’bleCERC

49. Power Exchange
A Power exchange facilitates equitable, transparent and efficient trading of power.
Bridges the demand supply mismatch by bringing larger players together for buying and selling in an auction based system.
While maintaining complete anonymity, resolves the constraints in the earlier formats, Viz. search costs, transaction costs, and counter-party risks.

50. Power Exchange Presently CERC has allowed only Day ahead Market
At present CERC has allowed only National level operated Power exchanges. In due course if need arises Regional level operated exchanges might come.
In power exchanges, as per CERC norms the price discovery is through Double sided closed auction.
Collective transaction means a set of transactions discovered in power exchange through anonymous, simultaneous competitive bidding by buyers and sellers
For Power Exchange transactions the Nodal agency will be National Load Despatch Centre (NLDC).

51. Power Exchange
Generally the ATC declaration is done by NLDC on its web site every day.
Depending on the corridor availabilities the solution is found out by the power exchanges and the allowed trades will be intimated to NLDC.
If there is no congestion NLDC will accept the trades and issue the schedules to the power exchange and the same will be implemented in RLDC schedules.
In Power Exchange transactions both buyer and seller have to pay the Transmission and operating charges separately.
The transmission losses also have to be borne by the buyer and seller separately.

52. Procedure for Scheduling of Collective Transaction
Submission/processing of of application
- Time frame for various activities
Scheduling
Treatment of losses
Congestion management
Commercial conditions
Disbursal of payments

53. Time frame 1100 Hrs: NLDC intimate Power Exchange(s) list of
Interfaces/control areas/ transmission System on which unconstrained flows are required to be advised by PX
1300 hrs: Power Exchange(s) Furnish the interchange,
Total drawal & Injection in each of the regions.
NLDC check for congestion.
14:00 Hrs: NLDC intimate PowerExchange(s) the
period of congestion/available limits.
15:00 Hrs: Application for scheduling of collective
transaction by Power Exchange(s) to NLDC
Power Exchange(s) ensure the scheduling Request is within the limit as per the Standing Clearance /No objection certificate by Utilities.

54. ..contd
Details of scheduling Request by Power Exchange(s) to NLDC (format-PX-III) by Clubbing of all Buyers /Sellers within a state for scheduling by RLDC.
16:00 Hrs: NLDC sends details to RLDCs for final checking and incorporating in Scheduling
17:00 Hrs: Confirmation of Acceptance by RLDC to NLDC.
17:30 Hrs: Acceptance of scheduling of collective
transaction by NLDC to Power Exchange(s).
18:00 Hrs: Scheduling by RLDCs

55. Scheduling periphery of the Regional Entities.
RLDCs schedules the Collective Transaction at the respective
periphery of the Regional Entities.
RLDCs incorporate all buyers within a State (clubbed together as one
group) and all sellers within a State (clubbed together as another group), in
the schedules of the Collective Transactions.
The individual transactions for State Utilities/intra-State Entities will be
scheduled by the respective SLDCs. Power Exchange(s) shall send the
detailed breakup of each point of injection and each point of drawal within
the State to respective SLDCs by 18:00 Hrs. after receipt of acceptance
from NLDC. The details for Scheduling Request for Collective
Transaction shall be submitted by Power Exchange (s) to the respective
SLDCs

56. TREATMENT OF LOSSES
Inter-State transmission losses would be applied separately on Buyers as well as Sellers of Collective Transaction, for arriving at the Schedules.
To compensate for losses in the inter-State transmission system, the Sellers in the Collective Transaction shall inject extra power (MW), in addition to the contracted power.
To compensate for the losses in the inter-State transmission system, the Buyers in the Collective transaction shall draw less power (MW) than contracted power.
The average transmission losses of the respective Region would be applied along with additional losses (if any),

57. Regulation 2008 of CERC Regulations on Collective Transactions
(From )
NLDC Charges
Collective Transactions:
Application fee – Rs. 5000/-
Transmission charges
-Rs 30/MWh for each point of injection and drawal
c. Scheduling Charges
– Rs. 5000/day to NLDC for each entity involved ;
-NLDC to Share with RLDCs
d. All buyers within a state :clubbed into one group
All sellers within a state :clubbed into one group
Payment of Tr and op charges by PX to NLDC by next working day
Tr and op charges for SLDCs shall be directly settled by PX with respective SLDC
Congestion Management
Collective: NLDC in coordination with Px

58. REAL TIME CONGESTION MANAGEMENT
In case of transmission constraint or threat to grid security, the scheduled transactions may be curtailed in the manner as decided by the NLDC /RLDCs / SLDCs to relieve the transmission constraint/ to improve grid security.
Collective Transaction through Power Exchange(s) would normally be curtailed subsequent to the Short-Term Bilateral Transaction(s).

59. …contd
RLDCs would curtail a Transaction at the periphery of the Regional
Entities. SLDC(s) shall further incorporate the inter-se curtailment of
intra-State Entities to implement the curtailment.
In case of curtailment of a Transaction caused by transmission constraints
/ threat to grid security, the Transmission Charges in respect of such
Transaction shall be payable on pro-rata basis in accordance with the finally Implemented Schedules. Operating Charges shall not be revised in case of curtailment.
Power Exchange (s) shall be responsible for the settlement on account of curtailment, directly with its participants.
NLDC/RLDCs/SLDCs shall interact only with the respective Power Exchange(s), for the same

60. Intra/Inter-Regional exchanges through IEX.

61. Intra/Inter-Regional exchanges through IEX. - SR

62. Toal Energy Exchange – SR