The regulatory commission has also issued the procedure detailed the operating procedure for implementation of MPERC (forecasting, scheduling, deviation settlement mechanism and related matters of wind and solar generating stations) regulations, 2018.
The summary of the amendments in the DSM regulations are as follows:
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Principal regulation |
Proposed amendments |
| Regulation 2 (g) ‘Deviation’ in a time-block for a Seller means its total actual injection minus its total ?scheduled generation and for a Buyer means its total actual drawal minus its total scheduled drawal, and shall form part of the State Energy Accounts to be prepared by SLDC. |
Regulation 2 (g) ‘Deviation’ in a time block for a Seller means its total actual injection minus its total scheduled generation.” |
| Regulation 2 (j) “Gaming’ in relation to these regulations, shall mean intentional misdeclaration of declared capacity by any seller in order to make an undue ?commercial gain through Charge for Deviations; | Regulation 2 (j) the word ‘declared’ shall be substituted by the word ‘a(chǎn)vailable’. |
| Regulation 3 (2) These Regulations shall be applicable to Seller(s) and Buyer(s) involved in the transactions facilitated through short-term open access or medium-term open access or long-term open access in intra-state transmission or distribution of electricity (including intra-state wheeling of power), as the case may be, in respect of all wind generators having a combined installed capacity of 10 MW and above and solar generators with an installed capacity of 5 MW and above including those connected via pooling stations and selling power within or outside the State. |
Regulation 3 (2) … Provided that these Regulations shall also be applicable to all wind & solar ?generators selling power outside the State under open access and having a combined installed capacity of 1 MW and above.” |
| Regulation 4 (7) All State Entities shall make necessary arrangements for putting up suitable meters, capable of recording energy flows at 15-minutes intervals, at the points of injection and drawal. |
Regulation 4 (7) …providing AMR facility for data downloading remotely at SLDC.” |
| New added clauses 4(8) & (9) “ (8) All wind or solar generators including those connected via pooling station shall have to appoint a common QCA which may be one of the generators or mutually agreed agency. If generators fail to appoint a common QCA within a period of one month from the date of issue of notice by SLDC, then SLDC shall advise the concerned licensee for disconnection of pooling station/feeder from the grid. ?The licensee shall disconnect the pooling station/feeder from the Grid under intimation to SLDC. (9) In case more than 50% wind or solar generators including those connected via pooling station have consented for a particular QCA, then remaining generators shall have to appoint the same agency as a QCA. In case of non-compliance of SLDC ?instructions, SLDC shall advise the concerned licensee to disconnect the defaulting generators from the Grid The licensee shall disconnect the pooling station/feeder from the Grid under intimation to SLDC.” |
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| Regulation 5 (c) Settlement Period: Preparation and settlement of ‘Deviation Pool Accounts’ shall be undertaken on weekly basis coinciding with mechanism followed for regional energy accounts. |
…Till such time, but not later than three months from the date of the notification, the complete weekly ABT meter data is received through AMR System or manual data download by MRI, the State Load Despatch Centre shall prepare and issue ?Deviation Charges Account on monthly basis. |
| Regulation 10(1) Governance Structure and constitution of State Power Committee (1) Within three months from the date of notification of these Regulations, the State Load Despatch Centre shall formulate Operating Procedures and Business Rules for the constitution of State Power Committee, which shall be approved by the State Commission |
Regulation 10(1) is substituted as under: “(1) Within two months from the date of notification of these Regulations, the State Load Despatch Centre shall formulate “a State Power Committee and its functions” and submit to the for approval.”Commission ? |
The key points of the regulations are as below:
- The regulations are applicable to all solar (excluding rooftop solar covered under UPERC RSPV regulations) and wind energy plants in Uttar Pradesh connected to the intra-state transmission system and having an installed capacity of 5 MW & above.
- The solar or wind generation plants with an installed capacity of 5 MW or more, using the power generated for captive consumption will also be covered under these regulations.
- Each pooling station having a minimum combined installed capacity of 5 MW will have one QCA, However, in case a particular solar or wind generator having a capacity of 50 MW or more, then such generators will act as a QCA provided that such generator is connected alone to a pooling station.
- Wind and solar generators under these regulations will be required to provide metering with a provision for recording and storing all the load survey and billing parameters for every 15-mn time block as specific in CEA regulations governing metering.
- A penalty will be imposed in case of failure of generator/QCA to provide data as directed by SLDC or error in the data provided as below:
- In case of failure of the generators/QCA comply with the above timelines, a penalty of INR 25,000/- per day will be levied.
Earlier Odisha, Gujarat, Karnataka, Tamil Nadu, Rajasthan, Jharkhand, Andhra Pradesh and Chhattisgarh had come out with their draft DSM Regulation on Forecasting & Scheduling of Wind & Solar. ?So far, Karnataka is the only state that has published final regulations.
Executive Summary:
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Forecasting and scheduling will be mandatory for?all?the wind and solar generators connected to the State grid, including those connected via pooling stations.
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Error will be calculated on the basis of?Available Capacity (AvC),?with permissible deviation of?±15%?for old wind projects and?±10%?for new wind projects (i.e., projects commissioned after May 2017).
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Settlement will be done through the “Qualified Coordinating Agency” or?QCA. However there is no mention of Aggregation.
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The Deviation charges shall be paid within 10 days of the issue of Statement of Charges for Deviation into the “State Deviation Pool Account”.
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16 intraday revisions?will be allowed for wind and solar energy (one revision every 1.5 hours). Revisions will be effective starting from 4th?time block onwards.
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QCA will be treated as a state entity, registered with SLDC. The preparation and settlement of ‘Deviation Pool Accounts’ shall be undertaken on weekly basis coinciding with mechanism followed for regional energy accounts.
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SCADA & Telemetry data?is to be mandatorily provided to SLDC by the generators. SLDC shall formulate Data/information exchange requirements and protocols for the same.
Detailed Analysis:
MPERC has recently come up with draft regulation for forecasting and scheduling and deviation settlement mechanism. The primary objective is twofold: a) facilitate large-scale grid integration of solar and wind generating stations b) maintaining grid stability and security. Highlights of the draft regulation are below:
Applicability:
All Wind & Solar Pooling sub-stations, irrespective of their capacity, commissioning date and connectivity voltage level, have to provide?a day-ahead?and intra-day revisions to a maximum of?16/day, and one revision for each 1.5Hr interval.
Error calculation and penalty bands:
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Payment for generation shall be as per?actual generation?(this is different from the inter-state regulation, where payment is on the basis of scheduled generation).
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Error is calculated based on Available Capacity (this is same as in the case of draft regulations of TN, Gujarat, Odisha, Rajasthan and Jharkhand).
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The deviation slab has been kept as?(+/-) 10%?for new projects and?(+/-) 15%?for old projects. The reference date for old and new projects is?26.5.2017.
Detailed Mechanism defined for Deviation Settlement
In case of Intra-State transmission, Penalty Mechanism for?wind?generating station or pooling station?commissioned prior to 26.5.2017
in line with the FoR model Regulations. Rajasthan is the fourth state to do so in recent days – MP, Karnataka and Tamil Nadu are the others.
Executive Summary:
- The regulations will be applicable on all wind and solar generators with individual or combined capacity of 5MW and above that are connected to the state grid
- Deviation will be calculated on the basis of available capacity
- Settlement with the buyer will be on the basis of actual generation
Qualifying Coordinating Agency (QCA) will play a key role in the total process. QCA will be ?responsible for forecasting, telemetry, scheduling and settlement of deviation.
The draft regulations are in-line in every aspect with the model F&S regulations released by FoR earlier. However, the model FoR regulations had proposed a 10% deviation band for new projects and 15% for existing projects. Rajasthan has proposed a 15% band for all projects.
Detailed Analysis:
Forum of Regulators have recently come up with model regulation for forecasting and scheduling and deviation settlement mechanism. The primary objective is two fold :
a) facilitate large-scale grid integration of solar and wind generating stations, and b) maintaining grid stability and security.
Highlights of the regulation are below: –
- All solar and wind generators connected to State grid have to provide day-ahead and week-ahead schedule – Revisions can be made on a one-and-half hourly basis.
- Payment for generation shall be as per actual generation (this is different from the inter-state ?regulation, where payment is on the basis of scheduled generation).
- The deviation slab has been kept as (+/-)15% for all generators at Intra-state level.
- Penalty is calculated at fixed amounts per unit (whereas, for Intra-state it is calculated as a percentage to PPA rate) –
- RPO accounting can continue as per existing arrangement, and needs no change.
The SLDC will also conduct a forecast of its own with the primary purposed of ‘secure grid operations by planning for the requisite balancing? resources.
Applicability of Regulations
- All wind and solar generators connected to the State grid are covered:
- ?Having capacity of 5MW and above individually or in aggregate.
- Regardless of date of commissioning.
- ?Including those connected via pooling stations
- Selling power within or outside the state. Detailed Mechanism defined for Deviation.
Detailed Mechanism defined for Deviation Settlement ?calculation or Intra-state sale of power is as follows
In case of Intra-State transmission, Penalty Mechanism for existing generators :
The Draft Order can be accessed here.
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Executive Summary:
- Forecasting and scheduling will be required by all wind and solar project, regardless of the date of commissioning and capacity
- Deviations will be calculated on the basis of total available capacity
- Penalty is a fixed amount beyond the error range (10% in case of new projects, 15% in case of old projects)
- Settlement will be done through the “Qualified Coordinating Agency” or QCA.
Detailed Analysis:
Forum of Regulators have recently come up with model regulation for forecasting and scheduling and deviation settlement mechanism. The primary objective is two fold: a) facilitate large-scale grid integration of solar and wind generating stations, and b) maintaining grid stability and security.
Highlights of the model regulation are below:
–????????? All solar and wind generators connected to State grid have to provide day-ahead and week-ahead schedule
–????????? Revisions can be made on a one-and-half hourly basis.
–????????? Payment for generation shall be as per actual generation (this is different from the inter-state regulation, where payment is on the basis of scheduled generation). .
–????????? The deviation slab has been narrowed for upcoming projects (i.e., +/-10%) but has been kept as (+/-)15% for existing generators at Intra-state level
–????????? Penalty is calculated at fixed amounts per unit (whereas, for Inter-state it is calculated as a percentage to PPA rate)
–????????? RPO accounting can continue as per existing arrangement, and needs no change.
Applicability of Regulations
All wind and solar generators connected to the State grid are covered:
- regardless of date of commissioning,
- including those connected via pooling stations
- selling power within or outside the state.
Deviation calculation both for Inter-state and Intra-state has been kept as :
*Available Capacity would ideally be the Installed Capacity, unless any of the turbines are on outage. Similarly for solar panels.
In case of Intra-State transmission, Penalty Mechanism for existing generators :
In case of Intra-State transmission, Penalty Mechanism for up-coming generators :
The detailed Regulation can be accessed?here.
The Regulations are applicable to:
- All Generating Stations including Solar and Wind Generators in the state of Orissa, except the Inter-state Generating Stations connected to Inter-State Transmission system.
- All CGPs in the state of Orissa, with capacity of 5 MVA and above
- All Distribution/Trading Licensees in the state of Orissa.
- All Open Access Customers (Above 5 MW) in the state of Orissa.
The charges for the Deviations for all the time-blocks has been classified as:
A. For all generators except wind and solar, and all buyers in the state
The charges payable for deviation, will be UI linked and is worked out on the average frequency of a time-block at the rates specified as per CERC (Deviation Settlement Mechanism and related matters) Regulations, 2014 and amendments thereto.
B. For the Intra State Wind and Solar Energy Generators
These entities will be treated differently, and the error resulting from the deviations, will not be penalized based on the UI mechanism, but by a mechanism very similar to the recent amendments to CERC Inter State Forecasting, Scheduling and Imbalance Handling Regulation of 2015.
The detailed deviation linked penalty mechanism has been proposed as below:
The commission has invited comments and suggestions till 22nd October 2015.
The relevant regulation can be accessed here.
In the following section, we limit our analysis to various amendments relating to the RRF mechanism.The Statement of Reason (SOR) for the changes has not yet been made available in the CERC website. We will share a more detailed analysis and the SOR when it is made available. These key changes (in context of RRF mechanism) are analysed and enumerated below:
- Definition of pooling substation has been modified. In the draft Amendment, the implication was that new capacity being added on old sub-stations would be covered under the RRF mechanism. However, this stand has now been reversed – only those sub-stations commissioned after 3/5/2010 are covered under the RRF mechanism
- Scheduling has been in effect from 15/7/2013. One revision for each time slot of 3 hours starting from 00:00 hours of a particular day subject to maximum of 8 revisions during the day are allowed.
- The forecast is required to achieve an accuracy of 70%. Therefore deviation beyond +/- 30% will attract UI charges to be borne by the generator. However, this clause will become applicable from a date to be specified by CERC in the future. (Clause 5 of Annexure I of IEGC)
- It is noteworthy that Clause 6 of Annexure I of IEGC which restricts the deviation to 150% of the schedule still remains intact. In case generation exceeds 150% of the generation, a fixed UI charge (corresponding to 50-50.02 HZ) will be payable, and the PPA rate will not be payable.
- The above changes will come into effect from 17/2/2014
?Our previous posts on RRF Mechanism can be read here.