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In order to participate in the balancing markets, a provider of FCR or FRR shall demonstrate that the technical requirements for the reserve is met by performing a prequalification with approved result.

Information about the prequalification process

Before an application for prequalification is made, we recommend you to have a look at the page Information about ancillary services.

On this page information about the different reserve markets and the processes to begin provision of reserves can be found in the documents “Guidance on the Provision of Reserves” and “Questions & Answers on Reserves”.

Reassessment of prequalification

The prequalification of FCR or FRR providing units or groups shall be re-assessed:

  • at least once every 5 years,
  • in case the technical requirements, endurance requirements or the equipment have changed

In addition, FCR providing units or groups shall be re-assessed:

  • in case of modernisation of equipment related to FCR activation

Type qualification of FCR for aggregated units

Units with a maximum capacity less than 0.1 MW can be type qualified and added to a prequalified group. The possibility of type qualifying units to a group is evaluated in the initial prequalification of the group.

In order for a unit type to be type qualified, the individual units must have technical characteristics that Svenska kraftnät considers to be equivalent to those units already included in the prequalified group. In addition, the new group's total technical ability shall be equal to or better than the group's ability in the original prequalification. This means that the added units should not adversely affect the group's ability.

Units that are type qualified can be added in two ways:

Increased flexibility

The provider can freely expand the group by adding type qualified units, as long as the maximum capacity is not increased. This means that the maximum volume that the group is prequalified for delivering does not change. Svenska kraftnät does not need to be informed in this case.

Increased capacity

The provider can expand the group with type qualified units, thereby increasing the maximum capacity of the group in steps of 0.1 MW, up to a maximum of 1 MW, without performing a new prequalification. Svenska kraftnät should be informed every time capacity is increased. When the maximum capacity has increased by 1 MW compared to the original prequalification and the provider wishes to increase the capacity further, new tests are required and a new prequalification application needs to be submitted.

As usual, units that are aggregated in a group must be in the same bidding area and have the balance responsible party.

Documentation regarding prequalification for FCR-N, FCR-D, aFRR och mFRR

All documentation related to the application shall be sent to Svenska kraftnät by using Svenska kraftnät’s service Deaddrop. The applicant will receive a temporary Deaddrop account after notifying Svenska kraftnät that the application is complete and ready to be sent in.

As a general rule, all documents that are submitted to Svenska kraftnät are public, but in some cases information may be covered by secrecy.

The applicant company is therefore recommended to state which information in the application can be considered sensitive from a secrecy point of view, and for what particular reason the company may be harmed if the information is disclosed.

Svenska kraftnät are not bound by the company's assessment but will do an independent review in each case.