Eiffage in exclusive negotiations with BKW for the sale of its majority stake in Volterres

Eiffage is streamlining its European portfolio by entering exclusive negotiations with BKW for the sale of its 65% majority stake in Volterres, a French renewable electricity supplier. This divestment allows Eiffage, a leading European construction and concessions group with €21.8 billion revenue in 2023, to sharpen its focus on core civil engineering and building operations across France and Europe. For BKW, a Switzerland-based international energy and infrastructure company, the acquisition of Volterres represents a direct expansion of its energy production capabilities within the French market. Volterres currently provides over 2 TWh of renewable electricity annually, sourced from 90 partner plants in France, offering BKW immediate operational scale. The undisclosed value of this 65% stake transaction, announced on 2026-03-09, suggests a strategic re-alignment for both parties rather than a pure financial play. BKW's move to acquire a majority stake in Volterres aligns with its profile as an international energy and infrastructure company active in energy production and grid infrastructure. This transaction adds a substantial operational asset in France to BKW's existing Swiss-based energy portfolio. Volterres, though founded in Madrid in 2022 as a renewable energy developer, has established a significant French supply business, complementing its broader pipeline of over 1.5 GW in utility-scale solar PV and battery storage projects across Spain, Italy, and France. Eiffage's decision to divest its 65% holding in Volterres underscores a strategic pivot away from direct renewable electricity supply, allowing the €21.8 billion revenue group to concentrate on its core construction and concessions activities across Europe. While Sun'R, a Lyon-based renewable energy developer specializing in PV solar and agrivoltaic projects since 2007, is listed as a seller, the specific details of its involvement in this 65% stake sale remain unconfirmed by the 2026-03-09 announcement. This deal exemplifies the ongoing portfolio optimization by large European infrastructure players, with established groups like BKW actively consolidating generation assets.