About
Founded in 2009, Si-REN is a government headquartered in Lausanne, Switzerland with approximately 1-10 employees specializing in Solar, Wind.
Si-REN SA is a public limited company wholly owned by the City of Lausanne, created in December 2009 as a key instrument of the city's energy policy. The company finances, constructs, and operates photovoltaic solar plants on third-party buildings through solar contracting arrangements. It retains ownership of the installations and resells generated electricity to building users at below-grid rates, with surplus energy fed back into the network. Si-REN also develops wind projects, including the EolJorat Sud project (8 turbines, 55 GWh/year capacity) which received building permits in August 2025. The company aims to produce 100 GWh/year by 2050, approximately one-third from solar photovoltaic systems. For 2021-2026, it targeted increasing photovoltaic production by 15 GWh/year (15 MWc capacity). The company works closely with Lausanne's Industrial Services.
Headquarters
Lausanne, Switzerland
Founded
2009
Employees
1-10
Company Type
Government