Switzerland's hydropower infrastructure takes many different architectural forms.
Some 60 per cent of Switzerland's energy is produced by water. Christian Helmle photographed the architecture of hydropower plants around the country.
Power places
Griessee dam (canton Valais)
Grande Dixence pipeline (canton Valais)
Power lines in Nufenen (canton Valais/Ticino)
Electricity substation in Innertkirchen (canton Bern)
Zervreila dam (canton Graubünden)
Hydropower station at Mühleberg (canton Bern)
Oelberg power station (canton Fribourg)
Albbruck-Dogern reservoir (Rhine power station, Swiss-German border)
Albigna dam (Canton Graubünden)
Zervreila power station (canton Graubünden)
Albanatscha underground substation (canton Graubünden)
Birsfelden hydropower plant (canton Basel Country)