Get all aFRR results for a given virtual asset and delivery day.

curl --request GET \
  --url https://api.trlyr.com/organisations/{organisationID}/virtual-assets/{virtualAssetID}/ancillary/afrr/results \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '{}'

[
  {
    "deliveryDay": "2025-11-11",
    "product": "POS_00_04",
    "results": [
      {
        "accepted": true,
        "acceptedCapacity": 1000,
        "capacityPrice": 100.5,
        "energyPrice": 100.5,
        "offeredCapacity": 1000,
        "settlementPrice": 100.5
      }
    ]
  }
]

afrr

Get all aFRR results for a given virtual asset and delivery day.

Gets aFRR 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 (FCR), POS_00_04 (AFRR Capacity), POS_001 (AFRR Energy).

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 whose contents can vary depending on the market:

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:

AFRR Energy: This field is null.
AFRR Capacity: The capacity price of the original AFRR bid in EUR/MW/h, e.g. 100.00. This price is used to determine the position of the bid in the TSO’s merit order. Since AFRR Capacity auctions are Pay As Bid, its value can be used to calculate revenue for AFRR Capacity results. See example below.

settlementPrice: This field is null.

energyPrice: The energy price of the original bid in EUR/MWh, e.g. 100.00. This price is used to determine the position of the bid in the TSO’s merit order. It cannot be used to calculate revenue for AFRR Energy results. See example below.

Results publication

The exact publication time of results is not guaranteed.

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

AFRR Energy

23 minutes before the start of the delivery period. E.g. for a bid with delivery period starting at 12:30pm, results are expected around 12:07pm.

AFRR Capacity

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

Revenue calculation

AFRR Energy

The AFRR Energy auction is Pay As Clear.

The settlementPrice for each product is only decided after the delivery period has ended and depends on the activations that have taken place during the delivery period.

The settlementPrice can be found in the data center of regelleistung.net. It can also be received through our internal revenue-reporting endpoint. Importantly, it is not part of the response of an AFRR Energy result, since the results are generated before the settlement price is decided.

If your bid is accepted, you are not automatically receiving revenue for the delivery period.

You are paid only for the activated power you deliver, not the accepted capacity. The activations your asset performed can be received through our internal revenue-reporting endpoint.

Example:

energyPrice offered in the bid: 80 EUR/MWh
settlementPrice: 100 EUR/MWh
Total activated power in 15 minutes: 2000 kW
Revenue: 100 EUR/MWh * 2 MW * 0.25 h = 50 EUR

AFRR Capacity

The AFRR Capacity auction is Pay As Bid and takes place on the day before the delivery day between 9:00am-9:20am CET/CEST.

Depending on your offered capacityPrice, your bid is rejected or accepted.

If a bid is accepted, you are paid the offered capacityPrice for each hour of the delivery period.

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

Example:

capacityPrice offered in bid: 100 EUR/MW
acceptedCapacity received in result: 2000 kW
Revenue: (100 EUR/MW/h * 2 MW) * 4h = 800 EUR

Adjustment of virtual asset blocks

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

Inside the aFRR 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 aFRR 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 aFRR 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 aFRR block and fully added to the wholesale block.

GET

organisations

{organisationID}

virtual-assets

{virtualAssetID}

ancillary

afrr

results

Get all aFRR results for a given virtual asset and delivery day.

curl --request GET \
  --url https://api.trlyr.com/organisations/{organisationID}/virtual-assets/{virtualAssetID}/ancillary/afrr/results \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '{}'

[
  {
    "deliveryDay": "2025-11-11",
    "product": "POS_00_04",
    "results": [
      {
        "accepted": true,
        "acceptedCapacity": 1000,
        "capacityPrice": 100.5,
        "energyPrice": 100.5,
        "offeredCapacity": 1000,
        "settlementPrice": 100.5
      }
    ]
  }
]

Headers

Authorization

string

default:Bearer <access token value>

required

Access token

Path Parameters

organisationID

string

required

Organisation ID

virtualAssetID

string

required

Virtual Asset ID

Query Parameters

deliveryDay

string

default:YYYY-MM-DD

required

Delivery Day

market

string

Market: 'capacity' or 'energy'

accepted

boolean

Filter for accepted or rejected bids

Body

application/json

The body is of type object.

Response

deliveryDay

string

required

Example:

"2025-11-11"

product

string

required

Example:

"POS_00_04"

results

object[]

Hide child attributes

results.accepted

boolean

Example:

true

results.acceptedCapacity

number<float>

In kW

Example:

1000

results.capacityPrice

number<float>

In EUR/MW/h (will be 'null' in energy market bid)

Example:

100.5

results.energyPrice

number<float>

In EUR/MWh

Example:

100.5

results.offeredCapacity

number<float>

In kW

Example:

1000

results.settlementPrice

number<float>

In EUR/MW/h or EUR/MWh

Example:

100.5

Last modified on June 30, 2026

Update aFRR bids for a single product and delivery day.Gets aFRR results for a given virtual asset, product and delivery day.

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