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Assam Electricity Regulatory Commission Draft (Forecasting, Scheduling, Deviation Settlement and Related Matters for Solar and Wind Generation Sources) Regulations, 2018

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HIGHLIGHTS

 

Eligible Entities

All wind and solar generators (excluding rooftop solar PV projects) within the state, connected to the following:

  • State grid
  • Pooling sub-station

 

Forecasting & Scheduling Code

  • Qualified Coordinating Agency (QCA) shall provide day-ahead and week-ahead schedule to the SLDC.
  • Day-ahead schedule – At intervals of 15 minutes for the next day, starting from 00:00 hrs of that day.
  • Week-ahead schedule – Same as for day-ahead schedule, for the next seven days.
  • Revision can be made by giving notice; effective from the 4th time block - the 1st being when notice was given.
  • Rescheduling on a one-and-a-half-hourly basis.

 

Role of QCA and Implementation

  • One QCA for each pooling station or generating station registered with SLDC.
  • QCA shall be the single point of contact with respect to:
    • Meter reading, data collection and its communication.
    • Coordination between distribution licensee, SLDC and other agencies.
    • Commercial settlements between generators and their counter parties.
    • All other ancillary or incidental matters.

 

Commercial and Deviation Settlement

  • Connected to the state grid and selling power within the state, to be paid as per actual generation.
  • Connected to the state grid and selling power outside the state, to be paid as per scheduled generation.
  • Deviations for intra-state and inter-state transactions at pooling station shall be accounted for separately.
  • QCA shall have the freedom to opt for virtual pool in order to aggregate forecasting and scheduling of different pooling stations to avail the benefits of a larger geographical area and diversity.

 

OTHER PROVISIONS

 

Deviation charges for sale of power within the state

Under or over injection (for plants commissioned before the date of notification).

Absolute Error in a 15-min time block

Deviation Charges payable to State DSM Pool

≤10%

None

>10% but ≤20%

At the rate of Rs.0.50 per unit.

>20% but ≤30%

At the rate of Rs.0.50 per unit for the shortfall or excess beyond 10% and up to 20% + Rs.1.00 per unit for the balance energy beyond 20% and up to 30%.

>30%

At the rate of Rs.0.50 per unit for the shortfall or excess beyond 10% and up to 20% + Rs.1.00 per unit for the balance energy beyond 20% and up to 30% + Rs.1.50 per unit for the balance energy beyond 30%.

 

Payment Mechanism

  • QCA shall separately settle deviation charges with wind and solar generators for inter-state and intra-state transactions.
  • QCA shall also de-pool the deviations and deviation charges to each generator.

Link

http://www.aerc.nic.in/Draft_Regulations.htm

 

Reference

http://www.aerc.nic.in/Draft%20AERC%20F%20and%20S%20Regulations,%202018.pdf

 

 

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