What we do

Thirdstep (TSE) is a leading and fully integrated player in the french solar photovoltaic industry. A joint venture between Altus Energy and Solaïs, TSE has been financing, building, and operating solar photovoltaic plants in France since 2008. As the main shareholder, Valfidus actively participates in the development of TSE.

bring to


the sun


TSE in figures

Founded in 2012

Design of solar power and dynamic agrivoltaic systems

250 employees

Head office in France
(Alpes-Maritimes : Sophia Antipolis 06)