With the changeover on the night of 31 December 2008 to 1 January 2009 from eight control areas to one zone covering the whole of Switzerland, Swissgrid took over the operation of the entire 6,700-kilometre extra high-voltage grid.

[2] The statutory requirement was thus met for the electricity companies to have completed the transfer of the transmission grid to Swissgrid by 1 January 2013 at the latest.

Swissgrid is also a member of the TSO Security Cooperation (TSC)[4] and since November 2010 it has been a shareholder of the Capacity Allocation Service Company[5] (CASC).

Amongst other things, the Act stipulates that the collection of grid premiums, the CRF and one-off remuneration payments, and the issuing of guarantees of origin should be outsourced to an independent enforcement agency.

Pronovo AG is a wholly owned subsidiary of Swissgrid and will operate under the authority of the Swiss Federal Office of Energy (SFOE).