Nordic Unavailability Collection System (NUCS) is a free service for collection of data on unavailable production, transmission and consumption capacity in the Nordic power system for publication on the ENTSO-E transparency platform. The NUCS website also publishes the collected data in addition to data retrieved from ENTSO-E to give a complete overview of unavailable capacity in the Nordic power system. In addition, NUCS offers services for compliance with REMIT art. 4, disclosure of inside information.

In case of questions regarding NUCS or for registration, please visit the support page for further information.