Tenders for Frequency Containment Reserve in the APG Control Area

This page contains the most important information for potential suppliers of Frequency Containment Reserve. More precise and legally binding information can be found in the contract documentation in the Download column.

Participation conditions

See Conditions for participation in tenders for control energy

The documents required for participation in tenders for FCR can be found in the Download column on the right-hand side.

Tendered products

The tendering period (the period in which the FCR should be provided) always extends from Monday 00:00 to Sunday 24:00 (a product over 7 days).

The total volume of FCR must be available in this period without interruption. This means that it must also be continuously reserved by the suppliers in their power plants.

The product contains equal amounts of negative and positive FCR. Separate offers for positive or negative FCR power are therefore not possible.

Volume put out to tender

The following volumes of FCR must be permanently available in the APG control area: +/-64 MW in the year 2018.

The partner TSOs demand can be found in the Parameter file

Minimum and maximum bid

The minimum bid is +/-1 MW. Bids in excess of the minimum bid can be placed in full MW increments but must not, however, exceed the pre-qualified power.

Tendering platform

The tender takes place exclusively via the electronic tendering platform.

When do the tenders take place?

The bidding period for the provision of FCR in the following week is normally from Friday, 12:00 to Tuesday, 15:00.

In the event that a deviating bidding period needs to be defined due to special circumstances, the suppliers will be informed of the deviation at least one week prior to the commencement of the deviating bidding period.

Award procedure

At the end of the bidding period the bids are ranked according to prices – starting with the cheapest bids –, until the total volume of control power required is reached. These bids are accepted, whereby acceptance of the last (= most expensive) bid may be restricted to ensure that the tender quantity is not exceeded.

In the event that two or more bids have the same price and their acceptance leads to the tender quantity being exceeded, the bids are accepted in relation to the volume of FCR offered, where by the shares determined in this manner are rounded to full MW values. In the course of the rounding process, the supplier whose share has the highest first decimal place is rounded up and the remaining share(s) are rounded down. If the value of the first decimal place is the same in two or more bids, acceptance is based on the time the bid was submitted.

Suppliers whose offers are accepted receive the power price they quoted, i.e. a "pay as bid" approach is adopted. There is no work price, i.e. the supplier is not paid for the FCR he delivers and the supplier does not have to pay for the FCR he receives. As the actual grid frequency hovers around an average value of 50 Hz, the FCR (delivered minus received) averages out at zero.

Calling FCR

FCR is – starting from the respective operating point – activated automatically through the utilisation of turbine control units in power plants. Activation is triggered when the frequency deviates from the target value (50 Hz), whereby the activated FCR increases proportionate to the magnitude of the deviation.

Maximum activation (corresponds to design-basis fault) takes place in the event of a frequency deviation of 200 mHz or more – the offered FCR is then fully exhausted. Maximum activation must be reached, at latest, 30 seconds after the corresponding frequency deviation occurs. It must remain available for at least 30 minutes.

Unsuccessful tender

In the event that the number of valid bids is lower than the tender quantity, the bids that meet the award criteria will be accepted and the shortfall will once again be put out to tender on Thursday. The suppliers will be informed about this new tender in due time. If the tender quantity is not reached in spite of the tender being repeated, the tender for the shortfall is deemed to be unsuccessful.

In the event of an unsuccessful tender, suitable suppliers will be instructed on Friday to provide the shortfall in FCR in accordance with the provisions in ElWOG 2010.