Repower
Repower is a Swiss energy group active in electricity generation, distribution networks, energy trading and customer supply, with Switzerland and Italy as its key markets.
Last updated September 25, 2026
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Overview
Repower is a Swiss energy company whose history begins in Valposchiavo, in the south of the canton of Graubünden. The company was founded on 14 June 1904 as Kraftwerke Brusio (KWB). Its first major facility was a high-pressure hydroelectric power station using Lago di Poschiavo as a reservoir, with its generating station at Campocologno. At the time of its opening, the plant was described by the company as the largest of its kind on the continent. Early electricity sales were oriented substantially toward exports, particularly to Valtellina and Milan in Italy. Today, Repower describes itself as an electricity producer, distribution network operator and energy trader. Switzerland and Italy are its key markets. In Graubünden, it owns and operates several hydropower stations and solar installations; in Italy, its portfolio includes wind and solar parks and a combined-cycle gas power station. It also supplies customers and operates distribution infrastructure. The company reports a network of about 3,000 kilometres in parts of Graubünden, including Prättigau/Rheintal, Engadin/Valposchiavo and Surselva, serving connections up to customers’ homes. Repower’s headquarters are in Poschiavo. Its other listed locations include Bever, Grono, Ilanz, Küblis, Landquart and Zurich in Switzerland, as well as Milan in Italy. The company says its trading operations are present at major Central European energy markets through trading locations in Poschiavo and Milan. The close historical connection with Italy, established through early electricity exports, remains part of its business footprint. The present-day group emerged through a series of combinations and name changes. KWB joined Rhätische Werke für Elektrizität and Bündner Kraftwerke AG in 2000 to form Rätia Energie AG. The company adopted the Repower name in 2010. The group expanded in 2004 with the addition of aurax ag, based in Ilanz, and established Rezia Energia Italia in Milan in 2002; that Italian operation has been called Repower Italia since 2010. The supplied company material does not specify the current ownership structure, founder, or listed status.
History
Repower traces its origins to Kraftwerke Brusio (KWB), founded on 14 June 1904 in Valposchiavo, in southern Graubünden. Its early development centered on hydropower. The first high-pressure power station used Lago di Poschiavo as a reservoir and had its generating station at Campocologno. Repower’s historical account describes it as the largest facility of its kind on the continent when it opened. Electricity produced there was initially directed largely toward export, with Valtellina and Milan among the principal destinations. From 1908, KWB supplied electricity for the electrification of the private Bernina Railway and later also the Rhaetian Railway. After the Second World War, more electricity was carried north over the Bernina Pass. These early cross-border links help explain the continuing importance of Italy to the group’s business. The company’s largest expansion came in 2000, when KWB combined with Rhätische Werke für Elektrizität and Bündner Kraftwerke AG to form Rätia Energie AG. The initiative for that combination came from the canton of Graubünden, which had acquired the shares of Bündner Kraftwerke AG from Nordostschweizerische Kraftwerke AG (NOK) three years earlier. In 2002, the group established Rezia Energia Italia in Milan, an operation known as Repower Italia from 2010. The group expanded further in 2004 with aurax ag, based in Ilanz. Rätia Energie adopted the Repower name in 2010. Repower’s current company description presents it as an electricity producer, distribution network operator and energy trader, with Switzerland and Italy as its key markets. In Graubünden it owns and operates hydropower stations and solar installations; in Italy its generation portfolio includes wind and solar parks and a combined-cycle gas power station. It also operates distribution infrastructure in parts of Graubünden and participates in Central European energy trading through locations in Poschiavo and Milan. Its headquarters remain in Poschiavo. The company’s supplied materials do not identify a founder or provide details of current ownership or listing status.
- 2010
Rätia Energie renamed Repower
- 2004
Group expanded with aurax ag
- 2002
Rezia Energia Italia established in Milan
- 2000
Formation of Rätia Energie AG
- 1908
Electricity supplied for the Bernina Railway
- 1904
Kraftwerke Brusio founded
Products and positioning
An integrated Swiss energy group combining electricity generation, distribution network operations, customer supply and energy trading, with a strong Graubünden base and significant activity in Italy.
Hydropower
Repower owns and operates several hydropower stations in Graubünden.
Solar power
The company operates solar installations in Graubünden and solar parks in Italy; Madrisa Solar is featured in its company materials.
Wind power
Repower's Italian portfolio includes wind parks.
Combined-cycle gas power
Repower's Italian portfolio includes a combined-cycle gas power station.
Electricity distribution and supply
The company operates distribution networks in parts of Graubünden and supplies electricity to customers.
Energy trading
Repower participates in major Central European trading venues through locations in Poschiavo and Milan.
Sources4 sources
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