Gets fCR results for a given virtual asset, product and delivery day

Query Parameters

Required query parameters:

deliveryDay: The delivery day of the bids in the format YYYY-MM-DD, e.g. 2026-05-30 (full day according to RFC3339).

Optional query parameters:

accepted: An optional boolean to filter the response to show only accepted or rejected results. If the parameter is not set, all results are returned.

Response format

Returns a JSON representation of the ancillary results for the given time interval and virtual asset as a list. The following fields are provided:

product: The product of the result, e.g. NEGPOS_00_04.

deliveryDay: The delivery day of the bid result in the format YYYY-MM-DD, e.g. 2026-05-30 (full day according to RFC3339).

results: A list of individual bid results for the product.

Each result in the list contains the following fields:

accepted: A boolean field that shows whether the bid was accepted or rejected in the auction.

offeredCapacity: The offered capacity of the original bid in kilowatts, e.g. 2000.

acceptedCapacity: The accepted capacity determined in the auction in kilowatts, e.g. 1000. Can be equal to or less than the offeredCapacity.

capacityPrice: The capacity price of the original bid in EUR/MW, e.g. 100.00. This price is used to determine the position of the bid in the TSO’s merit order. Since FCR auctions are Pay As Clear, its value is not relevant for revenue calculations. See example below.

settlementPrice: The settlement price determined by the auction in EUR/MW, e.g. 150.00. This field is only filled for FCR results. Since FCR auctions are Pay As Clear, it can be used to calculate revenue for FCR results. See example below.

energyPrice: This field is null.

Results publication

8:20am CET/CEST on the day before delivery day. E.g. for any FCR bid with delivery day 15.01.2026, results are expected around 9:20am CET on 14.01.2026.

The exact publication time of results is not guaranteed.

If results have not yet been published, returns an empty list and status code 200.

Revenue calculation

The FCR Capacity auction is Pay As Clear and takes place on the day before the delivery day between 8:00am-8:20am CET/CEST.

During this auction, a settlement price is set for each 4 hour EFA block on the next day.

For an accepted bid, this settlement price will be equal to or higher than the capacity price offered on your bid.

If a bid is accepted, you are paid the settlementPrice for the whole duration of the delivery period.

You are paid for the capacity you provide, irrespective of the activations your asset delivers.

Example:

• capacityPrice offered in bid: 80 EUR/MW
• settlementPrice received in result: 100 EUR/MW
• acceptedCapacity received in result: 2000 kW
• Revenue: 100 EUR/MW * 2 MW = 200 EUR

Adjustment of virtual asset blocks

The incoming result leads to an adjustment of the fCR and wholesale block on the virtual asset.

Inside the fCR block’s power capacity timeseries, the powerCapacity is updated to value of the result’s acceptedCapacity for the delivery period of the product.

At the same time, the powerCapacity of the wholesale block ("market":"WHOLESALE") for the delivery period of the product you bid on is adjusted:

If acceptedCapacity = offeredCapacity, nothing happens. If acceptedCapacity < offeredCapacity, the powerCapacity of the fCR block for the duration of the delivery period is reduced to the value of acceptedCapacity, whereas the powerCapacity of the wholesale block is increased by the same amount during that time. If the bid is rejected altogether, the powerCapacity of the fCR block for the duration of the delivery period is reduced to 0 and the powerCapacity of the wholesale block is increased by the same amount.

If a bid is rejected, the powerCapacity is removed from the fCR block and fully added to the wholesale block.