Vltava river

The Vltava river (VRC) service is provided by a fictitious unit of the Vltava river hydroelectric system operated by ČEZ. This service primarily provides quick-start reserve available within 10 minutes and also, depending on hydrological conditions, secondary control reserve. The Vltava river fictitious unit is unique within the Czech power system; for this reason it is controlled independently so that the technical and hydrological conditions and specific rules applicable to the Vltava river hydroelectric system can be taken into account.