Transcript Procedure for Scheduling of Collective Transactions

Open Access
DEFINITION OF “OPEN ACCESS” IN THE
ELECTRICITY ACT, 2003
“The non-discriminatory provision for the use of
transmission lines or distribution system or
associated facilities with such lines or system by
any licensee or consumer or a person engaged
in generation in accordance with the regulations
specified by the Appropriate Commission”
INTRODUCTION
• Open Access is necessary for utilization of short time
surpluses.
• Open Access will also create options for distribution
companies to buy power.
• Open Access will
provide means to the
traders/buyers/sellers.
• Non- discriminatory / Transparent Process
• Freedom to buy/sell power
• Efficient Market Mechanism to address supply /
demand mismatches
• Encourage investment in Transmission
Legal Framework
SECTION 38: (CTU Function)
• CTU to provide open access to Licensee or
Generating Company on payment of transmission
charge
• Any consumer when open access is provided by
State Commission on payment of surcharge in
addition to transmission charges.
• Surcharge shall be for meeting cross subsidy, and
to be progressively reduced and eliminated.
• Surcharge not payable in case of captive
generation and Distribution Companies.
• CTU can not engage in generation and trading
Legal Framework
Sections 39, 40 and 41
• Similar provisions for STU and Transmission
Licensee.
• STU can not engage in trading.
• Transmission Licensee can not engage in trading
Section 42
• State Commission to provide Open Access to all
consumers who required supply more than 1 MW
in 5 years.
Evolution of Open Access Regulations
OA Regulations 2004
STOA
LTOA
OA Regulations 2008
STOAbilateral
STOAcollective
OA Regulations 2010
Connectivity
LTOA
MTOA
Duration of STOA,MTOA and LTA
12 years-25 years
MTOA
3 months-3 years
3 months
STOA
MTOA
LTA
STOA- as per short term surpluses / margins in Tr. System
MTOA – without transmission augmentation
LTA – With / Without transmission augmentation
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:
CERC Open Access Regulations, 2008
• Effective 01.04.2008
• Amended in 01.05.2009
• 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 : Drawing RLDC
– Collective : NLDC
Open Access in ISTS:
CERC OA Regulations 2008
• Collective transactions : Both Buyers and Sellers of 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 for Advance Reservation, eBidding without Price Cap
• Exit Option provided with payment of up to 2 days open
access charges.
Open Access in ISTS
CERC OA Regulations 2008
• Products –
Short term Access
- Advance
- First Come First Serve
- Day ahead
- Contingency
Time lines for various Categories of Applications
Sl.
No.
Type of Application
Deadline for applying
Advance
Application
1
2
3
4
First Come First
Serve
Day Ahead
Contingency
OA
required
for *
Deadline for issue
of approval by
Nodal RLDC
10 days prior to close of
Month-1
M2
25th of M1
5days close of Month-1
M3
Last day of M1
Last day of Month-1
M4
5th of M2
FCFS for the same
month
M1
3 days before start
of transaction
M2
28th of M1
D4
On D3After receipt
of Power Exchange
schedules for D-4
D4
Within 6 blocks
before start of OA
FCFS 4 days before
commencement
Day Ahead (Day-1 or
1500 hrs. of Day-3)
After 15hrs on Day-3 or
1.5 hours before start of
OA
* M-1 : Month-1 (Current month), M-2- Next month and so on, D-1 Day-1 and so on
Time Line for Advance, FCFS, DA and
Contingency Applications
D-3
D-2
D-1 D0
1500hrs 1.5hrs
Deadline for
submission of
DA Applications
for transactions
on D0
Deadline for
submission of
Contingency
Applications for
transactions
during D0
M1
M2
20
Last Day for
submission of
Applications for
transactions in
M2, M3, M4
25
M3
M4
5
Processing time
for RLDCs
REVISON OF SCHEDULE
• Only in case of “Advance Scheduling” or
“First-Cum-First Served basis”
• minimum five (2) days notice (5days in 2008 Regn)
• Transmission Charges and Operating
Charges for 2 days (5days in 2008 Regn)
• Margin Available – could be utilized for
scheduling of other Open Access
Transactions
CURTAILMENT IN CASE OF
TRANSMISSION CONSTRAINTS
• Allocation/Reallocation of ISGS power
• Transmission constraint or to maintain grid security
• curtailed in the manner, which in the opinion of
RLDC, would relieve transmission constraints/
enhance grid security
• Open Access Bilateral Transactions would generally
be curtailed first followed by the Collective
Transactions
• Rerouting allowed without curtailment
• refund of Transmission Charges for unused capacity
COMMERCIAL CONDITIONS
• All Payment related to Open Access ST Charges
– by Applicant to the Nodal RLDC
– within three working days from the date of acceptance
• Energy charges to be settled among the parties
• Losses adjusted in kind
• Application Fees (as per Para 7 of Regulation)
– non-refundable fee of Rupees five thousand (Rs.5000/-) only
• Transmission charges (Para 16 of Regulation)
– Intra-region (Rs.80/MWh)
– Adjacent Region (Rs. 160/MWh)
– Wheeling (Rs.240/MWh)
– STU charges – as specified by respective SERCs or Rs. 80/MWh
• Operating charges (as per Para 17 of Regulation)
– Rs. 2000/- per day each RLDCs/SLDCs involved
DISBURSAL OF PAYMENT
• Disburse the Open Access Charges
– 10th day of the next month
• Transmission Charges and Operating
Charges – for State System
– Concerned STUs/SLDCs
• Refund due to curtailment
– 15th day of the next month
• Reconcile the Open Access Charges
STOA – SUCCESS STORY
• Developed in consultation with all stakeholders
• Applications Processed (Since Beginning) > 60,000 No.
• Volume (Approved Energy) (Since Beginning) > 190BUs
• Applications Approved > 95 %
– Refusal/Non-consent by SLDCs > 3 - 4 %
– Refusal due to system constraints < 0.5 %
STOA – SUCCESS STORY
• Robust Financial Settlement System
• Near Dispute free implementation
• Logistics/infrastructure -In-house
• Confidence Building & Dissemination of
knowledge
ST charges under OA
• w.e.f 01.01.11, ST charges as per Point of
Connection charge
• Both seller and buyer to bear losses in kind
as per the applicable Zonal losses