With a yearly energy sale of 24.2 TW⋅h the BKW is one of the biggest Swiss power utilities. Of this, 9.7 TW⋅h is produced by own plants or by shares in other facilities. As of 2007 the mix is mainly composed of nuclear (61.87%) and hydroelectric (37.96%) power. The remainder is produced by renewable sources like solar, wind, or biomass. Due to the necessity to diversify the mix and satisfy the increasing demand, BKW is introducing some fossil fuel power through shares in abroad plants.
Fossil fuel power In 2008 a new 800 MW combined cycle gas power plant started operation in
Livorno Ferraris (
province of Vercelli, Italy). BKW possesses a 25% share.
Hydroelectric power BKW produces up to 52% of its power through owned or shared hydroelectric plants in Switzerland and Italy. The owned plants are located mainly in Bern canton: •
Aarberg, Bern canton: 15.2 MW installed load, owned plant
Major future developments Biomass power • BKW has a 25% share in an 11 MW biomass power plant in construction in
Pignataro Maggiore (
province of Caserta, Italy). Operation should start in 2009. • In
Ottana (
province of Nuoro, Italy) BKW is present with a 10.5% share in a 35 MW biomass plant. The commercial operation should start in 2009. • BKW is considering to build with other partners a 900 MW coal power plant in
Dörpen (
Lower Saxony, Germany). • The
Papierfabrik Utzenstorf AG and BKW are planning to build in
Utzenstorf (
canton of Bern, Switzerland) a combined cycle gas power plant. It should start operation in 2016 and deliver power, steam and heat. •
Irsina (
province of Matera, Italy) has been chosen as possible location for a planned 400 MW combined cycle gas power plant. • BKW has an 80% share in a company that is building a new small hydroelectric plant in
Wiler (
Valais, Switzerland). The 1.4 MW station should start operation in 2010. • Schattenhalb 3 is a new 10 MW hydroelectric power plant which construction started in 2008. It is located in
Schattenhalb (
canton of Bern, Switzerland) and is planned to start production in 2010. It will be operated by a subsidiary of BKW. • BKW and the municipality of
Tinizong-Rona (
canton of Graubünden, Switzerland) will build a new 7.5 MW plant that will exploit the
Errbach torrent.
Nuclear power In the 2020s, the
Mühleberg Nuclear Power Plant will probably cease its activity and the contracts for importing nuclear energy from
France will expire. BKW and
Axpo founded
Resun AG to prevent the consequent energy lack. Its purpose is to manage the administrative procedure for building two new nuclear plants up to 1600 MW each. == Transmission grid ==