Open Access In Interstate Transmission system Principal Regulation 2008( 25 th Jan’2008)

04/21/23 NRLDC: POSOCO 1

Open Access Open Access In In

Interstate Transmission systemInterstate Transmission system

Principal Regulation 2008( 25Principal Regulation 2008( 25 thth Jan’2008) Jan’2008)Amendment Regulation 2009(20Amendment Regulation 2009(20 thth May’2009) May’2009)

Order-Removal of difficulties,(28Order-Removal of difficulties,(28 thth June,2011) June,2011)Order-Amendment to CTU procedure 28Order-Amendment to CTU procedure 28 thth Oct,2009 Oct,2009

H K CHAWLA, DGMNRLDC, POSOCOH K CHAWLA, DGMNRLDC, POSOCO

Transmission System • Electricity is a concurrent subject – central and State Govt.

responsible for its development

• Pursuant to electricity sector reforms, erstwhile monolithic

entities vertically disintegrated into separate cos. Responsible

for – Generation,

– Transmission and

– Distribution

• Transmission utilities created at Central and State level– Central Transmission Utility (POWERGRID) – Inter-State transmission

system

– State Transmission Utility – Intra-State Transmission System

Transmission System

• Plays Central Role in supply of electricity

• Backbone for electricity market development

• Crucial for big country like India – generation

resources and loads are scattered

• Optimal harnessing of available resources

IEGCFeb.’2000

ABT2002-03

Open Access2004

PX 2008

Transmission Pricing (PoC)2011

Evolution of Power Market in India

Ancillary MarketAncillary Market

Significant Feature of Electricity Act, 2003

1. Generation has been delicensed and captive generation freely permitted.i.e. Any generating company may establish, operate and maintain a generating station without obtaining a licence under this Act with only exception that it should comply with the technical standards relating to connectivity with the grid.

2. No person shall(a) transmit electricity; or(b) distribute electricity; or(c) undertake trading in electricity,unless he is authorised to do so by a licence issued, exceptions informed by authorised commissions through notifications

3 Open access in transmission with provision for surcharge for taking care of current level of cross subsidy, with the surcharge being gradually phased out.

Significant features…Contud

• 4. The state government required to unbundle State Electricity boards. However they may continue with them as distribution licensees and state transmission utilities

• 5. Setting up state electricity regulatory commission (SERC) made mandatory

• 6. An appellate tribunal to hear appeals against the decision of CERC's and SERC's

• 7 Metering of electricity supplied made mandatory• 8 Trading as, a distinct activity recognised with the

safeguard of Regulatory commissions being authorised to fix ceiling on trading margins.

DEFINITION OF “OPEN ACCESS” IN THE DEFINITION OF “OPEN ACCESS” IN THE ELECTRICITY ACT, 2003 (ELECTRICITY ACT, 2003 (Section 2(47) of Section 2(47) of Electricity Act 2003)Electricity Act 2003)

.. “Open Access” means the non-discriminatory provision for the use of “Open Access” means the non-discriminatory provision for the use of transmission lines or distribution system or associated facilities with transmission lines or distribution system or associated facilities with such lines or system such lines or system by any licensee, or consumer, or a person by any licensee, or consumer, or a person engaged in generationengaged in generation in accordance with the regulations specified in accordance with the regulations specified by the Appropriate Commission”.by the Appropriate Commission”.

• CTU Functions 38(2)(d)CTU Functions 38(2)(d)• STU Functions 39(2)(d)STU Functions 39(2)(d)• Transmission Licensees duties 40(c)Transmission Licensees duties 40(c)• Distribution licensee duties 42(2)Distribution licensee duties 42(2)

EA Section11 (Directions to generating companies)

11. (1) The Appropriate Government may specify that a generating company shall, in extraordinary circumstances operate and maintain any generating station in accordance with the directions of that Government.

• Explanation. - For the purposes of this section, the expression “ extraordinary circumstances” means circumstances arising out of threat to security of the State public order or a natural calamity or such other circumstances arising in the public interest.

(2) The Appropriate Commission may offset the adverse financial impact of the directions referred to in sub-section (1) on any generating company in such manner as it considers appropriate

Open Access in Transmission System

Three scenarios arise

Generation already connected to the grid and

harnessing margins available in transmission

capacity for its optimal utilisation – Short Term

Open Access Existing/New customers seeking transfer on

Medium Term Basis – Medium term open access

New generation developer seeking connectivity and

power transfer through the grid – Long Term

Access

STOA,MTOA and LTA

• Salient Features of LTA , MTOA and STOA

– STOA – 3 months,

– MTOA – 3 Months to 3 Years

– LTA – 12 to 25 years

– STOA/MTOA utilization of margins in the existing transmission

system

– LTA is not limited, in case of constraints requisite strengthening is

identified and built

– LTA customers are provided firm access rights to the grid with

higher priority than the MTOA/STOA customers

Short Term Open AccessOpen Access… Railways

Transmission Users/Customers are offered numerous

products to suit requirement

Advanced reservation

First-cum-first served

Day ahead

Contingency

Present Market at a Glance

Long TermLong Term MarketMarket

12-25 Yr12-25 Yr

Short Term Open AccessShort Term Open Access

Bilateral Bilateral TransactionTransaction

Collective Collective TransactioTransactio

nn

Day Ahead Day Ahead TransactioTransactio

nn

Contingency Contingency TransactionTransaction

3 month 3 month aheadahead

Day Ahead Day Ahead aheadahead

After After Clearance of Clearance of

PXPX

On the day of On the day of operationoperation

SchedulesSchedules

Balancing Market ( UI )Balancing Market ( UI )( Real Time Operation )( Real Time Operation )

Medium Medium TermTerm

MarketMarket

3months3months-3Years-3Years

Term Term aheadahead

LEGAL FRAMEWORK [SECTION-9(2)]Captive GenerationLEGAL FRAMEWORK [SECTION-9(2)]Captive Generation

• Every person, who has constructed a captive generating plant and maintains and operates such plant, shall have the right to open access for the purposes of carrying electricity from his captive generating plant to the destination of his use

• Provided that such open access shall be subject to availability of adequate transmission facility and such availability of transmission facility shall be determined by the Central Transmission Utility or the State Transmission Utility, as the case may be

Electricity Act(Sections 38/39/40/42) CTU / STU/Transmission licensee/Distribution licensee

• To provide non-discriminatory open access to its transmission system for use by-(i) any licensee or generating company on payment of the transmission charges; or(ii) any consumer as and when such open access is provided by the State Commission under sub-section (2) of section 42, on payment of the transmission charges and a surcharge thereon, as may be specified by the Central Commission/State Commission.

• CTU shall not engage in generation/trading.• STU shall not engage in trading• Transmission Licensee shall not engage in trading

Regulation 2: Definitions• “bilateral transaction” means a transaction for exchange

of energy (MWh) between a specified buyer and a specified seller, directly or through a trading licensee or discovered at power exchange through anonymous bidding, from a specified point of injection to a specified point of drawl for a fixed or varying quantum of power (MW) for any time period during a month

• “collective transaction” means a set of transactions discovered in power exchange through anonymous, simultaneous competitive bidding by buyers and sellers;

• “regional entity” means a person whose Scheduling ,metering and energy accounting is done at the regional level;

• “intra-State entity” means a person whose metering and energy accounting is done by the State Load Despatch Centre or by any other authorized State utility;

Regulation 2: Definitions….contd

• “short-term customer” means a person who has availed or intends to avail short term open access

• “short-term open access” means open access for a period up to one (1)month at one time

• Short term access applications allowed up to 3 months in advance considering ATC/TTC issues.

Regulation 2: Definitions….contd

• “State network” means network owned by the State Transmission Utility, distribution licensee or any other person granted licence by the State Commission to construct, operate and maintain the transmission system;

• “State utility” (means a State Transmission Utility, or )a State Electricity Board,or Electricity Department of the State, or a State Government organization authorized to sell or purchase electricity on behalf of the State;

• “time block” means 15 minutes time period specified in the Grid Code for the purposes of scheduling and despatch; and

Draft Notification:Amendment of Regulation 2 of Principal Regulations:

(1) A new sub-clause shall be inserted after sub-clause (g) of clause (1) ofRegulation 2 of Principal Regulations as under, namely:“(g-a) “Intra-day transaction/contingency transaction” means thetransaction which occurs on day (T) after the closure of day aheadtransaction window and the delivery of power is on the same day (T) ornext day (T+1) and which are scheduled by Regional Load DespatchCentre or National Load Despatch Centre.”

(2) The sub-clause (h) of clause 1 of Regulation 2 of the Principal Regulationsshall be substituted as under, namely-"(h) “Intra-State entity" means a person whose metering is done by theState Transmission Utility or the distribution licensee as the case may be andthe accounting is done by State Load Despatch Centre or any otherauthorized State Agency. “

.

Regulation 3: Scope

• The long-term-customer and the medium-term customer shall have priority over the short-term customer for use of the inter-State transmission system.

• The short-term customer shall be eligible for short-term open access over the surplus capacity available on the inter-State transmission system after use by the long-term customer and the medium-term customer, by virtue of

• inherent design margins;• margins available due to variation in power flows; and• Margins available due to in-built spare transmission

capacity created to cater to future load growth or generation addition.

Regulation 4: Detailed Procedure

• Subject to the provisions of these regulations, the Central Transmission Utility, till the Regional Load Despatch Centre is operated by it and thereafter the Government company or any authority or corporation notified by the Central Government under subsection (2) of Section 27 of the Act: shall, after obtaining prior approval of the Commission, issue the detailed procedure to operationalise open access and on any residual matter not covered under these regulations

Regulation 5: Nodal Agency

• The nodal agency for bilateral transactions shall be the Regional Load Despatch Centre of the region where point of drawal of electricity is situated and in case of the collective transactions, the nodal agency shall be the National Load Despatch Centre.

NODAL AGENCY • For Short-Term Customers

– RLDC of the Region in which the drawal point is located.

• For Long & Medium Term Customers– Central Transmission Utility (CTU), if its

system is used– Transmission Licensee/ STU of the region

in which the drawl point is located when CTU system is not involved.

CTU PROCEDURES

Regulation 6: Submission of STOA Application• A short-term customer or the power exchange (on behalf of buyers and

sellers) intending to avail of STOA for use of the transmission lines or associated facilities for such lines on the ISTS, shall make an application to the nodal agency

• The application for a bilateral transaction shall contain the details, such as – names and location of supplier and buyer, – contracted power (MW) to be scheduled and interface at which it is

referred to, – point of injection, – point of drawal, – starting time block and date, – ending time block and date, and – such other information that may be required in the detailed

procedure.• The application for a collective transaction shall contain the requisite

details in accordance with the detailed procedure.

GENERAL CONDITIONS/APPLICATION SUBMISSION• As per OA regulations Dtd. 25/01/08 w.e.f 01/04/08 & OA Amendment Regulations Dtd. 20/05/09 & as per order-amendment to CTU procedure Dtd.28/10/09

• RLDC will check if connectivity with CTU/ ISTS or STU system (as the case may be) is established, necessary metering is in place, transfer capability upto the CTU network for power flow of the quantum of injection/drawal applied for is available on the date of application and whether the applicant has undertaken to abide by the Central Electricity Authority (Technical Standards for Connectivity to the Grid) Regulations, 2007.

• Application to be submitted to::– Nodal RLDC where point of drawal is situated– & also to all RLDCs involved in the transaction

• Application Contents– Details:: Buyer / Seller / Point of injection/ point of drawal /

Contracted power at supplier interface/ date/ time period (as per (Format-I-Application for scheduling) alongwith application fee/SLDC concurrance

Regulation 7: Application Fee

• An application made for each bilateral transaction or the collective transaction shall be accompanied by a non-refundable fee of Rupees five thousand (` 5000/-)only

• Provided that the fee for bilateral transaction on the day of the application or may be deposited within three working days of submission of the application.

Regulation 8: Concurrence of SLDC for bilateral and collective transactions

• When a Proposed bilateral transaction has a State utility or an intra-State entity as a buyer or a seller– concurrence of the SLDC shall be obtained in advance and

submitted along with the application to the nodal agency in the form as in the detailed procedure.

• When a State utility or an intra-State entity proposes to participate in trading through a power exchange, it shall obtain – a “no objection” or a prior standing clearance from the

SLDC in the form as in the detailed procedure, specifying the MW up to which the entity may submit a buy or sell bid in a power exchange.

3(a) For obtaining concurrence or ‘no objection’ or prior standing clearance :

• Application before the SLDC• SLDC to Acknowledge receipt of the application, either by e-

mail or fax, or any other recognised mode ,within twenty four hours from the time of receipt of the application.

3(b) SLDC shall verify the following, namely-(i) existence of infrastructure necessary for time-block-wise

energy metering and accounting in accordance with the provisions of the Grid Code in force, and

(ii) availability of surplus transmission capacity in the State network.

3(c) SLDC to convey concurrence/ ‘no objection’ / prior standing clearance

• Within three (3) working days if infrastructure exists• Within seven (7) working days for a first time STOA

Customer• Deficiency within two (2) working days for a

defective/incomplete application

Regulation 8: Concurrence of SLDC for bilateral and collective transactions…..contd

• In case of SLDCs refusal ( When Application is in order but necessary infrastructure or surplus transmission capacity is not there.)– To be communicated, within the period of three (3)

working days or seven (7) working days(First Time)– Reasons for such refusal:

In case of no Communication by SLDC– Concurrence shall be deemed to have been granted:

In case of deemed Concurrence grant by SLDC– the applicant while making application shall submit to the

nodal agency an affidavit (in the format provided in the detailed procedure), duly notarised, declaring that –

• (a) the SLDC has failed to convey any deficiency or defect in the application or its refusal or concurrence or ‘no objection’ or prior standing clearance

Regulation 8: Concurrence of SLDC for bilateral and collective transactions…..contd

• (b) necessary infrastructure for time-block-wise energy metering and accounting in accordance with the provisions of the Grid Code in force, is in place; and enclosing with the affidavit –

– (i) a copy of the complete application after removal of deficiency or rectification of defects, if any communicated, made to the SLDC for seeking concurrence or ‘no objection’ or prior standing clearance, as the case may be, and

– (ii) a copy of the acknowledgement, if any, given by the SLDC, or any other evidence in support of delivery of the application.

Regulation 8: Concurrence of SLDC for bilateral and collective transactions…..contd

Draft Notification: Amendment of Regulation 8 of the Principal

Regulations:(1) Clause (2) of Regulation 8 of the Principal Regulations shall be substituted

asunder, namely:“(2) When a State utility or an intra-State entity proposes to participatein trading through power exchange(s), it shall obtain No Objection orPrior Standing Clearance from the concerned State Load DespatchCentre in such form as may be prescribed in the Detailed Procedure,specifying the aggregate MW up to which the State utility or intra-State entity may submit buy or sell bid(s) in the power exchange(s)taken together.”(2) A new clause shall be inserted after clause (2) of Regulation 8 of PrincipalRegulations as under, namely:“(2A) No Objection or Prior Standing Clearance obtained by the Stateutility or intra-State entity from the State Load Despatch Centre can beused for collective transaction for day ahead on Power Exchangeand/or for bilateral intra-day transaction/contingency transaction inOTC market or on the Power Exchange market.

Provided further that while making application to SLDC forobtaining No Objection or Prior Standing Clearance for collectivetransactions for day ahead or for bilateral intra-daytransaction/contingency transaction, the applicant shall certify that heagrees to ensure that aggregate quantum in each time block of 15minutes for all the bid(s) in collective transactions ( day aheadcontracts on Power Exchange(s)) and/or for intra-day / contingencytransactions (in OTC market and/or Power Exchange Market) shallnot exceed the quantum for which No Objection or Prior StandingClearance has been granted.”(3) Two provisos shall be added after the first proviso to sub-clause (a) of clause(3) of Regulation 8 of the Principal Regulations as under, namely:“Provided further that while making application to the SLDC for obtainingConcurrence for bilateral transactions (except for intra-daytransaction/contingency transactions), an affidavit in the format prescribedin the Detailed Procedure, duly notarized, shall be submitted, along withthe application, declaring that:(i) There is a valid contract with the concerned persons for the sale of thepower under the proposed transaction for which concurrence is appliedand;(ii) There is no other contract for sale of the same power as mentioned in(i) above.”

Provided further that while making application to SLDC forobtaining No Objection or Prior Standing Clearance for collectivetransactions for day ahead or for bilateral intra-daytransaction/contingency transaction, the applicant shall certify that heagrees to ensure that aggregate quantum in each time block of 15minutes for all the bid(s) in collective transactions ( day aheadcontracts on Power Exchange(s)) and/or for intra-day / contingencytransactions (in OTC market and/or Power Exchange Market) shallnot exceed the quantum for which No Objection or Prior StandingClearance has been granted.”(3) Two provisos shall be added after the first proviso to sub-clause (a) of clause(3) of Regulation 8 of the Principal Regulations as under, namely:“Provided further that while making application to the SLDC for obtainingConcurrence for bilateral transactions (except for intra-daytransaction/contingency transactions), an affidavit in the format prescribedin the Detailed Procedure, duly notarized, shall be submitted, along withthe application, declaring that:(i) There is a valid contract with the concerned persons for the sale of thepower under the proposed transaction for which concurrence is appliedand;(ii) There is no other contract for sale of the same power as mentioned in(i) above.”

Provided further that while making application to the SLDC for obtainingno objection or prior standing clearance incase of collective transactions,the affidavit shall include the declaration(i) There is no other contract for sale of the same power for which noobjection or prior standing clearance s applied.(4) The following proviso shall be added at the end of sub-clause (b) of clause (3)of Regulation 8 of the Principal Regulations, namely:“Provided that in case of application for obtaining concurrence for bilateraltransactions (except for intraday transaction/contingency transaction), theState Load Despatch Centre shall also consider the affidavit submittedregarding existence of valid contract for the transaction as per last proviso tosub-clause (a) of clause (3) of this regulation.”(5) Sub-clause (c) of clause (3) of Regulation 8 of the Principal Regulation(excluding the proviso) shall be substituted as under, namely:“Where existence of necessary infrastructure, availability of surplustransmission capacity in the State network and submission of existence ofvalid contract as per second proviso to sub-clause (a) of clause (3) of thisregulation has been established, the State Load Despatch Centre shallconvey its concurrence or ‘no objection’ or prior standing clearance, as thecase may be, to the applicant by e-mail or fax, in addition to any other usuallyrecognised mode of communication, within three (3) working days of receipt ofthe application:”

(6) In clause (4) of Regulation 8 of Principal Regulations, the following shall beadded after the words "unavailability of surplus transmission capacity in the Statenetwork", namely,"or non-submission of the affidavit in accordance with second proviso tosub-clause (a) of clause (3) of this regulation".(7) Second Proviso to clause (4) of Regulation 8 of Principal Regulations shall besubstituted and two new provisos shall be added after the second proviso as

under,namely:“Provided further that where concurrence or ‘no objection’ or prior standingclearance, as the case may be, is deemed to have been granted by the StateLoad Despatch Centre, the applicant such as the State utility or the intra-Stateentity or short term customer as the case may be, shall submit to the nodalagency (concerned Regional Load Despatch Centre) in case of bilateraltransactions and the power exchange in case of collective transactions for dayahead or for bilateral intra-day transaction/contingency transaction throughpower exchange, the following on affidavit in the format provided in thedetailed procedure at least three days in advance:(a) Declaring that the State Load Despatch Centre has failed to conveyany deficiency or defect in the application or its refusal orconcurrence or ‘no objection’ or 'prior standing clearance', as thecase may be, within the specified time,

(b) Declaring that necessary infrastructure for time-block-wise energymetering and accounting in accordance with the provisions of the GridCode in force, is in place; and(c) enclosing the following documents –(i) a copy of the complete application made to the State LoadDespatch Centre for seeking 'concurrence' or ‘no objection’ or'prior standing clearance', as the case may be6(ii) Deficiency or defect in the application, if any, communicated bythe State Load Despatch Centre and the action taken to removeor rectify the defect or deficiency; and(iii) a copy of the acknowledgement, if any, given by the State LoadDespatch Centre, or any other evidence in support of delivery ofthe application to the State Load Despatch Centre.Provided further that the Power Exchange shall forward the copy of theaffidavit alongwith the documents received from the State utility or the intra-State entity or short term customer as the case may be, to the nodal agency(National Load Despatch Centre) at least two days before the delivery:Provided further that the concerned Regional Load Despatch Centre incase of bilateral transactions and concerned power exchange in case ofcollective transaction for day ahead or for bilateral intra-daytransaction/contingency transaction through power exchange shall forward thecopy of the affidavit alongwith the documents to the concerned SLDC on thesame day it is received.”

RLDC concurrance - Bilateral Transaction having a State Utility or an intra-state Entity as a Buyer/Seller in other region:: concurrence of the concerned Regional Load Despatch Centre(s). - Nodal applications to be considered first before giving other concurrance - Reasons for refusal

SUBMISSION OF APPLICATION

GENERAL CONDITIONS• Entities which are making Application for the first time must

submit the “One- Time” information as per enclosed format (FORMAT-VIII: “Registration Form) to the concerned nodal RLDC.

• Application - through online• Any amendment/modification

– fresh Application • Applications not accorded the Acceptance:

– stand disposed off with suitable intimation to the concerned Applicant(s)

• All costs/expenses/charges associated with the Application, including Bank Draft, shall be borne by the Applicant.

• Incomplete / vague Application– summarily rejected

• No charges payable for a transaction shall be adjusted by against any other payments/charges.

• The Applicant shall abide by the provisions of The Electricity Act, 2003, Indian Electricity Grid Code and CERC Regulations, as amended from time to time

• Applicant shall keep each of the SLDCs/ RLDCs indemnified

CTU PROCEDURES

Categories & Time Line For Open Access

M0

M1

M2

M3

DLDL-5DL-10 DL+5

DOP

DOP-1

DOP-4

Adv Application for M1

Adv Application for M2, Approvals for M1

Adv Application for M3,Approvals for M2

Approvals for M3

FCFSFCFS

Day Ahead / PX

Day Ahead / PX LEGEND:

DOP : Day of Operation DL : Last day of M0

LEGEND: DOP : Day of Operation DL : Last day of M0

CONTINGENCYCONTINGENCY

Regulation 9: Regulation 9: Procedure for Advance Scheduling Procedure for Advance Scheduling for bilateral transactionsfor bilateral transactions

ADVANCE SCHEDULINGADVANCE SCHEDULING• Advance Scheduling – 3 months in advance• Separate Application –

– Month wise - each transaction• Time Line for submission

– Last date for submission ( -10 / -5 / 0 days prior to end of current month MO – for transaction in M1, M2, M3)

– Cut-off time of application: 17:30 Hrs. of last day (Day 0)– Request for concurrence (RLDC) – by 12:00 Hrs.(Day 1) (Format- III)– Concurrence - by 20:00 Hrs (Day 1)– Congestion Information to Applicant – 12:00 Hrs (Day 2)-Format-

IV(Congestion information-Advance scheduling)– Revised Request/re-routing – 11:00 HRs. (Day3)-Format-V-Request

for revision due to congestion)– E-bidding – in case of Congestion (Day 4)– Acceptance/Refusal of Scheduling Request – (Day5)-Format-VI-

Acceptance for scheduling

Regulation 10 Congestion Management : e- Bidding Procedure

• Invitation of Bids from the concerned applicant– period of congestion– RTS/IR corridor expected to get over stressed

• Only Registered Users – User ID & Password– Electronic submission – Bid Closing time as specified – Single Price Bid – No Modification/withdrawal once submitted

• Bid Price • – In addition to Open Access Transmission charges

- Multiples of Rs. 10/ MWh . ( Min. Rs. 10/MWh)• Mandatory - Non-participation (Deemed to withdrawl of

Application)• Acceptance - Decreasing order of Price Quoted• Equal Price Bids – Pro-rata• Applicant getting approval < request Charges as quoted• Applicant getting approval=request Charges as paid by last

applicant getting approval = request

E Bidding in NRLDC•

1 During processing of  Advance applications in August 2009, Congestion was observed in WR-NR Corridor in all the 96 time blocks for all the    days of Sept-2009.

2  Total no of applications were  15(BRPL-1,Lanco- 1,NVVN-3, PTC-1,TATA- 7 and Venergy-1,Mittal processor-1). The Max margin available was 17 MW and min 1 MW.

3 On 23.08.2009 ,NRLDC intimated to all the applicants about the congestion, mentioning the total applied quantum and available margin.

4 After seeing the margin, all the applicants except NVVNL and BRPL revised their applied quantum  as Nil.

5 For NVVNL and BRPL, E-bidding was carried out at 17.00hrs of 24.08.2009..

 6  NVVNL & BRPL  bidded  their transmission charges as Rs10/MWh & Rs 270/MWh respectively (Above Rs 80/MWh).

7   In E-bidding an amount of Rs 1435590/( 5317 MWh quantum @ Rs 270/MWh) was collected from BRPL &  was further disbursed to CTU.

Regulation 11,12,&13 Regulation 11,12,&13 Procedure for FCFS, Day ahead & Procedure for FCFS, Day ahead & Contingency bilateral transactionsContingency bilateral transactions

““FIRST-COME-FIRST-SERVED”(FCFS)FIRST-COME-FIRST-SERVED”(FCFS)• Scope

– FCFS shall be considered only when transactions are commencing & terminating in the same calender month.

• Separate Application for each month• To be submitted 4 days prior to date of Scheduling• Processing time – 3 days on FCFS basis• Applications received during last 10 -5 days of month of M0 for M1

would be considered only after complete processing of Advance transactions for M1

• Application Received up to 1730 hrs in a day to be processed together – same priority

• Application Received after 17:30 Hrs. - to be considered as received next day

• Congestion Management – pro-rata

Regulation 12: DAY-AHEADRegulation 12: DAY-AHEAD

• Applications received within 3 days prior to the day of Scheduling and up to 15:00 Hrs. of the day immediately preceding the day of scheduling shall be treated as same priority

• Processing only after processing of the Collective Transactions of the Power Exchange (s)

• Congestion Management – Pro-rata

Regulation 13: CONTINGENCY

• Buying Utility/Trader on its behalf to make an Application to the Nodal RLDC

• To be considered after 1500 hrs of the day immediately preceding the day of scheduling.All applications received up to 18.00 Hrs shall be clubed together.

• In case of intra-day/same day – scheduling from 6th time block

• Congestion Management – Pro-rata

Regulation 14: Revision of Schedule

• Only in case of “Advance Scheduling” or “First-Cum-First Served basis”

• Accepted schedule for Day-Ahead ,Contingency & Advance transactions shall be revised or cancelled once in case of tripping of generators > 100MW as per Cl.6.5.19 of IEGC.

• Revision w.e.f 4th time block of intimation to RLDC• Generator to furnish expected restoration time from which original schedules would

become effective.

• For period of revision/cancellation upto two days:: Original transmission/operating charges

• For period of revision/cancellation > two days:: Transmission Charges and Operating Charges for the period beyond two (2) days shall be payable as per the revised accepted schedule and for the first two (2) days as per the original schedule.

• Margin Available – released for scheduling of eligible Open Access Transactions

EXAMPLE OF DOWNWARD REVISION

R0From date To Date From time To Time MW MWh

20-Mar-11 31-Mar-11 00:00 24:00 100 28800.00Scheduled MWh28800.00Billed MWh 28800.0012 days

APPLICATION FOR REVISION ON 17TH MarchR1 App. Date : 17thFrom date To Date From time To Time MW MWh

20-Mar-11 31-Mar-11 00:00 24:00 50 14400.00Scheduled MWh14400.00Billed MWh 16800.0012 days

additional charge =(100-50)*24*2 for 20th & 21st March 2400.00

APPLICATION FOR REVISION ON 2OTH MarchR1 App. Date : 20thFrom date To Date From time To Time MW MWh

20-Mar-11 22-Mar-11 00:00 24:00 100 7200.0023-03-2011 31-03-2011 00:00 24:00 50 10800.00

Scheduled MWh18000.00Billed MWh 20400.0012 days

additional charge =(100-50)*24*2 for 23rd & 24th March 2400.00

Operating charges

Operating charges

INITIAL APPLICATION

Operating charges

Regulation 15: CURTAILMENT IN CASE OF Regulation 15: CURTAILMENT IN CASE OF TRANSMISSION CONSTRAINTS TRANSMISSION CONSTRAINTS

• Transmission constraint or to maintain grid security

• Curtailed in the manner, which in the opinion of RLDC, would relieve transmission constraints/ enhance grid security

• Curtailment priority ::STOA(bilat)Collective(PX)MTOALTA

• In case of reallocation of GOI share leading to corridor constraints

• Rerouting allowed without curtailment of existing transactions

• Pro-rata refund of Transmission Charges

• No revision of operating charges

Regulation 16: Regulation 16: Transmission Charges …. contd• The intra-State entities shall pay the transmission charges for use of

the State network as fixed by the respective State Commission in addition to the charges specified

• Provided that in case the State Commission has not determined the transmission charges, the charges for use of respective State network shall be payable at the rate of Rs.80/MWh for the electricity transmitted:

• Provided further that non-fixation of the transmission charges by the State Commission for use of the State network shall not be a ground for refusal of short –term open access:

• Provided also that the transmission charges payable for use of the State network shall be conveyed to the Regional Load Despatch Centre concerned who shall display these rates on its web site:

• Provided also that the transmission charges payable for use of the State network shall not be revised retrospectively.

Application of POC Transmission Charge methodology for STOA transactions

• Nodal POCs zoned to form Zonal POC for each Control area• Slabbing done to fall into either high, Average or Low slab

For New Grid:• High Rs. 1,09,968/MW/Month Average Rs. 94,968/MW/Month Low

Rs.79,968/MW/Month• Converted to High 15.19 paise/unit Average 13.19 paise/unit Low 11.19

paise/unit• Hence STOA rates applicable are Rs.151.90/MWH, Rs.131.90/MWh, Rs.111.90/MWh for

High, average, Low slab respectively

For SR Grid :• High Rs. 89520/MW/Month Average Rs. 74,520/MW/Month Low

Rs.59,520/MW/Month

• STOA rates are Rs. 123.50/MWh, 103.50/MWh, 83.50/MWH for High, Average, Low slabs respectively

Application of POC Transmission Charge methodology for STOA transactions

• Transmission charges payable by Entity X injecting 100MW RTC power to Entity Y• Assume X falls in high injection slab in NEW Grid while Y fall in low withdrawal

slab in SR Grid

• Hence POC injection for X Rs 151.90/MWH• Withdrawal POC for Y Rs.83.50/MWh

• Transmission charges payable for injection would be : = 2400MWh x 151.90

• Transmission charges payable for withdrawal would be: = 2400MWh X 83.50

• Total charges payable by Trader to Nodal RLDC: = 2400*(151.90+83.50) Rs.

• STU charges would be payable in addition

Regulation 17: Operating ChargesRegulation 17: Operating Charges

• Bilateral Transaction– Rs.2000/- per day or part of the day/transaction /RLDC– Rs.2000/- per day or part of the day/transaction /SLDC

• Collective Transaction– Rs.5000/- per day or part of the day/state to NLDC– Rs.2000/- per day or part of the day/transaction for each SLDCs

involved– NLDC to share operating charges with each RLDC

• NLDC keeps Rs.2000/- and Rs.3000/- divided amongst 5 RLDCS @ Rs.600/RLDC

– Clubbing of buyers & sellers within a state– Each group be considered as single entity for Operating charges

and for scheduling by NLDC– Each point of drawal & injection shall be counted separately for

the purpose of intra-state transmission charges & operating charges for SLDC

Regulation 18: Regulation 18: Payment of transmission charges and Payment of transmission charges and operating chargesoperating charges

• Bilateral transaction: – the applicant to deposit with the nodal agency

transmission charges and operating charges within three (3) working days of grant of acceptance

• Collective transactions:– the power exchange shall deposit with the nodal

agency these charges by the next working day falling after the day on which its application was processed

– the transmission charges for use of State network and operating charges for SLDC shall be settled directly by the power exchange with respective SLDC.

Regulation 19: Default in payment of STOA charges

• Default in payment of the application fee or specified charges :– charges the nodal agency may decide not to

schedule the transaction, or– to cancel the scheduling of already scheduled

transaction or – not to entertain any application of such persons

in future until such time the default is cured

• The person committing default in payment – Shall pay simple interest at the rate of 0.04% for

each day of default.

INCORPORATION IN DAILY SCHEDULES• Incorporation in Daily Schedules of the Regional

Entities

• Average energy losses - estimated on weekly basis and converted to Tier I, II, III slabs

– RLDCs – ISTS (Inter State Control area)– SLDC – (Intra-State/Control area)

• Resolution of 0.01 MW at each State/inter-Regional boundaries.

• W.e.f 1st October,2011 losses to apportioned to both buyers & sellers earlier losses were apportioned to buyers only.

CTU PROCEDURES

• If State utility is Buyer/Seller, Transmission Charges shall not include the charges for that State network and the Operating Charges for that State Load Dispatch Center. A certificate in this regard(internalized) from the concerned STU(s)/SLDCs shall be submitted by the Applicant

• The transaction wise payment details shall be submitted as per enclosed format[FORMAT-VII: “Details of Payment”].

COMMERCIAL CONDITIONS (SUMMARY)CTD.. CTU PROCEDURES

Regulation 20:: Unscheduled Inter- change (UI) Regulation 20:: Unscheduled Inter- change (UI) ChargesCharges

• All transactions for State utilities and for intra-State entities scheduled by the nodal agencies shall be accounted for and included in the respective day-ahead net interchange schedules of the concerned regional entity issued by the RLDC

• Based on net metering on the periphery of each regional entity, composite UI accounts shall be issued for each regional entity on a weekly cycle and transaction-wise UI accounting, and UI accounting for intra-State entities shall not be carried out at the regional level.

• The State utility designated for the purpose of collection / disbursement of UI charges from / to intra-State entities shall be responsible for timely payment of the State’s composite dues to the regional UI pool account.

Regulation 20:: Unscheduled Inter- change (UI) Regulation 20:: Unscheduled Inter- change (UI) ChargesCharges

• 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 SLDC 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.

• No charges, other than those specified under these regulations shall be payable by any person granted short-term open access under these regulations.

Draft Notification:Amendment of Regulation 20 of Principal Regulations:

(1) The words "State utility" occurring in clause (3) of Regulation 20 of Principal Regulations shall be replaced by the words "State agency".

(2) The following proviso shall be added to clause (5) of Regulation 20 of the Principal Regulations,namely“Provided that all payments on account of Unscheduled Interchange charges including Additional Unscheduled Interchange charges and interest, if any,shall be regulated in accordance with the provisions of Central ElectricityRegulatory Commission (Unscheduled Interchange charges and relatedmatters) Regulations, 2009, as amended from time to time.”

Regulation 21: Reactive Energy ChargesRegulation 21: Reactive Energy Charges

• No separate reactive energy charge accounting for STOA transactions shall be carried out at inter-State level:Provided that the State Utility designated for the purpose shall be responsible for timely payment of the State’s composite dues to the regional reactive charge account in accordance with the provisions of the Grid Code.

• The reactive energy drawals and injections by the intra-State entities shall be governed by the regulations applicable within the State concerned.

Regulation22: Special Energy Meters

1. Special Energy Meters shall be installed by the Central Transmission Utility for and at the cost of the regional entities and by the State Transmission Utility for and at the cost of the intra-State entities.

2. Special Energy Meters installed shall be capable of time-differentiated measurements for time block wise active energy and voltage differentiated measurement of reactive energy in accordance with Annexure – 2 to Chapter–6 of the Grid Code.

3. Special Energy Meters shall always be maintained in good condition.

4. Special Energy Meters for the regional entities shall be open for inspection by any person authorized by the Central Transmission Utility or the Regional Load Despatch Centre.

Draft Notification:Amendment of Regulation 22 of the Principal Regulations:

The clause (1) of Regulation 22 of the principal regulations shall besubstituted as under, namely-“(1) Special Energy Meters shall be installed by the Central Transmission Utility for and at the cost of the regional entities and by the State TransmissionUtility or the distribution licensee as the case may be, for and at the cost ofthe intra-State entities.”

Regulation23:: Transmission losses

1. The buyers and sellers of the electricity shall absorb apportioned energy losses in the transmission system as estimated by the Regional Load Despatch Centre and the State Load Despatch Centre concerned, and applied in accordance with the detailed procedure.

2. The energy losses shall be accounted for by providing a differential between schedules at the points of supply, inter-utility transfer and drawal of electricity.

3. The applicable transmission losses for the regional transmission system as well as for State network shall be declared in advance and shall not be revised retrospectively.

Regulation23:: Transmission losses- Amendment of procedures by CTU

• Nodal POC losses found from Webnetuse software • Zoning done to form loss for each scheduling entity• Assume POC injection loss of X = a% & POC withdrawal loss of B = y%• For 100Mw injection transaction from X to Y:After 1st October,2011 losses are being apportioned to both buyer & Seller Point of contract Regional periphery where entity located Injection schedule of X = -100/(1-a/100) rounded to 2 decimals Withdrawal schedule of Y = 100*(1-b/100) rounded to 2 decimals

• Losses classified as Tier-I , II , II according to Low, Average or High slab.

Loss calculation-Amended CTU loss procedures

• If W current week, loss of week W-1 is estimated & applied for week W+1• If a = losses as per SEM data for W-1 losses for Tier I, II, III slabs would be Low(Tier-I) = [a/2-0.3]% Average(Tier-II)= a/2 High(Tier-III) = [a/2+0.3]% E.g. estimated loss for w-1 for NR = 3.90% Low(Tier-I) = 1.65% Average(Tier-II)= 1.95% High(Tier-III) =2.25%

Loss calculation Methodology (w.e.f 1st October,2011)

Contract value 100MWTransaction Tata steel- DVC - ER – WR – NR – DTL- NDPL DVC STU loss 3% DVC Inj POC loss 1.5%Delhi withdrawal POC loss 2% DTL STU loss 1.5%

TATA STEEL

NDPL

104.66MW

TATA STEEL BDY

101.52MW

DVC BDY

98MW

DTL BDY

96.53MW

NDPL BDY

ER

WR

NR

100MW CONTRACT

RLDCs need to show schedules

only upto requisite control area

peripheryHence schedule values only upto DVC boundary &

DTL boundary need be shown by

RLDCs. Accordingly, STU

losses are not required w.e.f

01/10/11 [Values are shown for understanding

only].

• Regulation 24::Compliance of Grid Code

–The buyers and sellers of energy shall comply with the provisions of the Grid Code in force from time to time.

Regulation 25: Collection and Disbursement of Transmission Charges Regulation 25: Collection and Disbursement of Transmission Charges and Operating Charges(previous)and Operating Charges(previous)

• The transmission charges and the operating charges payable by the persons allowed short-term open access shall be collected and disbursed by the nodal agency, except for transmission charges for State network and operating charges for SLDC in the case of the collective transaction

• Operating/Transmission charges for SLDCs/STUs to be settled directly by PX with the concerned SLDC/STU

• The transmission charges collected by the nodal agency for use of the transmission system other than State network, for a bilateral transaction shall be directly disbursed to CTU.

Reg.25(previous)…Ctd

• The operating charges including application fees are deposited in LDC Development Fund.

• The transmission charges for use of State network shall be disbursed to the State Transmission Utility concerned.

• In case a State utility is the short-term customer, the operating charges and the transmission charges collected by the nodal agency shall not include the charges for use of the State network and operating charges for the State LoadDespatch Centre.”

Billing, Collection & Disbursement Procedures Approved by CERC Vide Billing, Collection & Disbursement Procedures Approved by CERC Vide order dtd.15order dtd.15thth June,2011 – Para &(3) b & c June,2011 – Para &(3) b & c

• For STOA, DIC shall have to pay applicable transmission charges to the RLDC/NLDC at the time of application. The payment made for the STOA charges for the quantum with respect to bilateral transactions upto the LTA for the specific Region of LTA granted without identified beneficiaries,, shall be credited to that DIC in the next month billing after accounting for the MTOA charges, if any, as per 7.2 (b) above.

• Provided that the STOA is in the direction of the targeted regions mentioned in the LTA granted to the DIC by the CTU. If the STOA is other than the targeted regions mentioned in the LTA, then such STOA, PoC charges shall not be adjusted against the LTA granted by the CTU.

• Provided that this adjustment shall not be done for bilateral transactions done through portfolio trader.”

Billing, Collection & Disbursement Procedures Approved by CERC Vide Billing, Collection & Disbursement Procedures Approved by CERC Vide order dtd.29order dtd.29thth April,2011 – Para &(3) b & c April,2011 – Para &(3) b & c

• Provided that this adjustment shall not be done for collective transaction and bilateral transactions done through portfolio trader.

• For STOA transactions not qualifying for aforementioned credit, the STOA charges after disbursing 25% of such transmission charges to the CTU in accordance with the CERC (Open Access) in inter-State Transmission Regulation 2008 and amendment thereof, shall be adjusted with respect to the paying DICs (for the respective applicable month) by the next 30 days of receipt of such payments.

DISBURSAL OF PAYMENT – Additional Pts

• Nodal RLDC :: Reconcile the Open Access Charges collected for previous month & disburse the Transmission/Operating Charges

• Transmission Charges and Operating Charges – for State System– Concerned STUs/SLDCs

• Refunds due to curtailment/revision in previous month– 15th day of the current month

• No responsibilty for payment dishonour: Disbursement only to extent of receipt

CTU PROCEDURES

STOA charges calculation Methodology:: Tata Steel-DVC-ER-WR-NR-DTL-NDPL

Contract value 100MW RTC power x 5 days 12000MWh(total contracted energy)Transaction Tata steel- DVC - ER – WR – NR – DTL- NDPL DVC injection POC 14p/unit Rs.140/MWhDelhi withdrawal POC 10p/unit Rs.100/MWh

TATA STEEL

NDPL

DVC SLDC operating charges = 2000 x 5

DTL SLDC operating charges = 2000 x 5

ER

WR

NR

100MW CONTRACT VALUE

DVC injection POC transmission charges = 140 x 12000

Delhi withdrawal POC transmission charges = 100 x 12000

ALL OF ABOVE +NON REFUNDABLE APPLICATION FEES Rs.5000/-

Contract value at sellers’ periphery.

ERLDC operating charges = 2000 x 5

NRLDC operating charges = 2000 x 5

WRLDC operating charges = 2000 x 5

DVC STU transmission charges = 80 x 12000

DTL STU transmission charges = 41.85 x 12000

Regulation 25A:: STOA Not To Be GrantedRegulation 25A:: STOA Not To Be Granted

• When so directed by the Commission, the National Load Despatch Centre or the Regional Load Despatch Centre, as the case may be, shall not grant short-term open access to the entities and associates of such entities, – who consistently and willfully default in payment of

• Unscheduled Interchange charges, • transmission charges, • reactive energy charges, • congestion charges and • fee and charges for National Load Despatch Centre or

Regional Load Despatch Centre• including the charges for the Unified Load Despatch and

Communication Scheme

Draft Notification:Amendment of Regulation 25A of the Principal Regulations:

The Regulation 25(A) of the Principal Regulations shall be substituted asunder, namely-“Short Term Access Not to be granted: 25A. When so directed by the Commission, the National Load Despatch

Centre or the Regional Load Despatch Centre, as the case may be, shall not grant short-term open access (including transactions through Power Exchange) to the entities and associates of such entities, who consistently and willfully default in payment of Unscheduled Interchange charges, transmission charges, reactive energy charges, congestion charges, fee and charges for National Load Despatch Centre or Regional Load Despatch Centre including the charges for the Unified Load Despatch and

Communication Scheme and Unscheduled Interchange charges to SLDC byan intra-State entity for a short term inter-State transaction ”

Regulation 26::Redressal MechanismRegulation 26::Redressal Mechanism

• All disputes arising under these regulations shall be decided by the Commission based on an application made by the person aggrieved.

Regulation 27:: Information System–NLDC & Regulation 27:: Information System–NLDC & RLDCsRLDCs

National Load Despatch Centre and each Regional Load Despatch Centre shall post the following information on their websites in a separate web-page titled “Open access information”:a) These regulations;b) The detailed procedurec) A list of bilateral transactions accepted by the nodal agency, to be displayed till

the end of the month in which transactions are scheduled, indicating:(i) Name of customers;Name of customers;(ii) Period of the short-term open access (ii) Period of the short-term open access

granted granted (start date end date); (start date end date);(iii) Point or points of injection;(iii) Point or points of injection;(iv) Point or points of drawal;(iv) Point or points of drawal;(v) Transmission systems used (in terms of (v) Transmission systems used (in terms of

regions regions and States);and States);

(vi) Accepted schedule (MW) with start time and (vi) Accepted schedule (MW) with start time and end timeend time

• Each State Load Despatch Centre, shall within 60 days of coming into force of these regulations, develop its website and post the following information on separate web-page titled “information on Inter-State Open Access”:

• (a) List of bilateral transactions for which concurrence has been granted and list of entities to whom concurrence or “no objection” or prior standing clearance, as the case may be, has been granted till the end of the month in which such concurrence or no objection or prior standing clearance has been granted, indicating:

– (i) Name of customer;– (ii) Period of concurrence or “no objection” or standing clearance, as the– case may be, (start date and end date);– (iii) Point or points of injection and drawal,; and– (iv) Accepted schedule (MW).

• (b) Average transmission losses for the State network for the immediately preceding 52 weeks;• (c) Applicable transmission charges and transmission losses for the State network;• (d) List of applications where concurrence or “no objection” or standing clearance, as the case may be, was not granted, along with reasons for refusal, to be displayed till one month after the scheduling period given in the application; and• (e) A list of applications pending for decision.]

Regulation 27A::Information System– SLDCsRegulation 27A::Information System– SLDCs

Regulation 28 ::Savings and RepealRegulation 28 ::Savings and Repeal

• The provisions of the Central Electricity Regulatory Commission (Open Access in inter-State Transmission) Regulations, 2004 shall not apply to the short-term open access] customers whose applications are processed under these regulations.

• The provisions relating to long-term customers as contained in the Central Electricity Regulatory Commission (Open Access in inter-State Transmission) Regulations, 2004 shall continue to apply till Commission notifies separate regulations covering aspects relating to long-term customers.

• The provisions relating to short-term open access as contained in the Central Electricity Regulatory Commission (Open Access in inter-State Transmission) Regulations, 2004 shall stand repealed on 1.4.2008.