Central collection and publication of electricity generation, transportation and consumption data and information for the pan-European market.

Total load per bidding zone per market time unit
Regulation Article: 6.1.a and 6.2.a

Regulation text: 

For their control areas, TSOs shall calculate and submit the following data to the ENTSO for Electricity for each bidding zone:
(a) the total load per market time unit;

shall be published no later than one hour after the operating period;

Detailed description: Actual total load per bidding zone per market time unit, the total load being defined as equal to the sum of power generated by plants on both TSO/DSO networks, from which is deduced:
- the balance (export-import) of exchanges on interconnections between neighbouring bidding zones.
- the power absorbed by energy storage resources.
The information shall be published at the latest H+1 after the end of the operating period.
Specification of calculation:
- Average of real-time load values per bidding zone per market time unit.
- Actual total Load (including losses without stored energy) = Net Generation – Exports + Imports – Absorbed Energy
- Net Generation is preferred however gross generation could be used where it is available with the better precision. TSOs should decide gross or net generation will be used but the net/gross characteristic should be consistent per Bidding zone. For transparency purposes, both values could be published (still under study by ENTSO-E)
- Absorbed energy is also provided as separate information in Article 16.1.b with the aggregated generation output of the hydro pumped storage.
- The physical flow on the tie line is measured as agreed by neighbouring TSOs or bidding zones, where applicable.
Primary owner of the data:
TSO for import-export + generation units for generation and absorbed energy.
Data provider:
By default, TSO. All generation units and DSOs in the control area of the TSO are obliged to make data available to TSO.
Publication deadline for ENTSO-E:
Publication based on market time unit. At the latest H+1 after the end of the operating period (of one market time unit length).
Updates:
Not obligatory but possible.

Comments:

 

  • In case of power plants net generation should be taken (auxiliary supply should not be considered).

 

 

Day-ahead forecast of the total load per market time unit
Regulation Article: 6.1.b and 6.2.b

Regulation text: 

For their control areas, TSOs shall calculate and submit the following data to the ENTSO for Electricity for each bidding zone:

(b) a day-ahead forecast of the total load per market time unit;

 

… shall be published no later than two hours before the gate closure of the day-ahead market in the bidding zone and be updated when significant changes occur; 

Detailed description: A day-ahead forecast of the total load per market time unit per bidding zone at the latest two hours before the gate closure time of the day-ahead market in the bidding zone or at D-1, 12:00 in local time zone of the bidding zone at the latest when gate closure time does not apply. The day-ahead forecast has to be updated, if there are major changes. A major change represents a change of at least 10% of the total load forecast in one market time unit. The primary owners of the data are TSOs and DSOs;

 

The forecast of load:

-   is given for information purposes only.

-   is drawn up, among other things, on the basis of meteorological data ahead of time. It is therefore likely to change in shape and level. 

 

Note: The day-ahead forecast is calculated (estimated) on the historic load profile on similar days, taking into account the variables that affect electricity demand, such as weather conditions, climate and socioeconomic factors. 
Specification of calculation:
Day-ahead forecast of total load per market time unit per bidding zone. 
Primary owner of the data:
TSO and DSOs. 
Data provider:
TSO by default. 
Publication deadline for ENTSO-E:
Publication is necessary in due time for the negotiation of all transactions: D-1, at the latest 2 hours before the gate closure time of the day-ahead market in the bidding area. If the gate closure doesn’t exists in the bidding area then the publication time is D-1, at 12:00 in local time zone. 
Updates:
The day-ahead forecast has to be updated, if there are major changes. A major change represents a change of at least 10% of the total load forecast in one market time unit. 

 

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