About
Founded in 2019, CIREN is a co-op headquartered in Rennes, France with approximately 10-50 employees specializing in Solar.
CIREN is a variable-capital SAS with cooperative structure, recognized as a Solidarity Economy and Utility Enterprise. Founded in 2019 with 30 founding members, CIREN has grown to over 150 shareholder-members. The cooperative develops solar photovoltaic installations on public and private rooftops across the Rennes metropolitan area, funded through citizen investment. As of 2024, CIREN has deployed 1,270 solar panels covering over 2,180 m² across 14 installations with a total capacity of 474 kWc, generating approximately 500 MWh of renewable electricity annually for local consumption. CIREN also coordinates individual plug-and-play solar panel workshops and operates collective self-consumption operations in solidarity with local communities. Governance is distributed across four colleges: citizens, employees, energy transition associations, and business/local authority representatives.
Headquarters
Rennes, France
Founded
2019
Employees
10-50
Company Type
Co-op
Annual Revenue
$1M-$5M
Business Models
Value Chain
Service Regions
Rennes Metropolitan Area, Ille-et-Vilaine
Projects
Landrel-Le Blosne Solar Installation
Torigné Solar Installation
La Chapelle des Fougeretz Solar Installation
Vezin-le-Coquet Solar Installation
Saint-Jacques-de-la-Lande Solar Installation
Guillevic School Solar Installation
Point 21 Laillé Solar Installation
Bruz Solar Installation
BretiSun ISDND
ECLAIRS Bréquigny
Certifications & Awards
Certifications
Agrément Enterprise Solidaire et d'Utilité Sociale