Imbalance Settlement Period (Electricity Balancing Market)

 

The so-called 'Winter Package' defines a Imbalance Settlement Period as the time unit for which the imbalance of the Balance Responsible Parties is calculated (Article 2(2)(n) of the Proposal for a Regulation of the European Parliament and of the Council on the internal market for electricity (recast), 30.11.2016, COM(2016) 861 final 2016/0379 (COD)).

 

 

Imbalance settlement period

 

 

The length of the Imbalance Settlement Period impacts on:

 

- the Imbalance Pricing methodology (i.e. single or dual);

 

- the balancing processes required (use of Replacement Reserves or not);

 

- the Balancing Energy products (e.g. scheduled, pure energy products or only direct activated power products); and

 

- the volume calculation (request or metered).

 

Pursuant to the draft ENTSO-E Electricity Balancing Network Code (NC EB) the harmonisation of the Imbalance Settlement Period within and between Synchronous Areas is envisioned no later than two years after the NC EB entry into force.

 

Article 2(2)(n) of the Proposal for a Regulation of the European Parliament and of the Council on the internal market for electricity (recast), 30.11.2016, COM(2016) 861 final 2016/0379 (COD)

 

'imbalance settlement period' means the time unit for which the imbalance of the balance responsible parties is calculated

  

 

The stepwise approach is envisioned through a proposal of all Transmission System Operators (TSOs) submitted for approval to all national regulatory authorities (NRAs) based on a Cost-Benefit Analysis.

 

The draft NC EB imposes the requirement that the Imbalance Settlement Period must not exceed 30 minutes, however, each TSO will have the right to develop a proposal that deviates from the decision on the harmonisation of Imbalance Settlement Periods, in such event the concerned TSO must perform a specific Cost-Benefit Analysis.

 

The Agency for the Cooperation of Energy Regulators (ACER) proposed some amendments to the ENTSO-E vision of the Imbalance Settlement Period. 

 

ACER's Recommendation No 03/2015 of 20 July 2015 on the Network Code on Electricity Balancing called NC EB explicitly defines the length of the of the harmonised Imbalance Settlement Period.

 

ACER underlined the fact the need for shorter Imbalance Settlement Period has been defined by the Framework Guidelines (i.e. no longer 30 minutes).

 


Hence, the Agency is of the opinion that an harmonised duration equal to 15 minutes is a natural choice for the Imbalance Settlement Period, since 30 minutes, is used, at the date of Recommendation's issuance, only by three Members States, whereas 15 minutes is used in eight Member States.

 

ACER proposes such harmonised settlement period should be applied by 1 July 2019.

 

According to Article 7(4) of the said Proposal for a Regulation on the internal market for electricity of 30 November 2016, by 1 January 2025 the imbalance settlement period must be 15 minutes in all control areas.

 

 

Documentation

 

 

Proposal for a Regulation of the European Parliament and of the Council on the internal market for electricity (recast), 30.11.2016, COM(2016) 861 final 2016/0379 (COD), Article 2(2)(n), Article 7(4)

 

 

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Last Updated on Tuesday, 24 January 2017 00:35
 

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