01
Site survey & yield study
On-site surveys, drone if needed, analysis of the roof and the needs, sizing by the in-house design office.
Carré de la Garenne — 4.5 MWp on a rooftop
Built by JR Énergie — the largest rooftop plant in the Auvergne region.
Our partner installer
JR Énergie, the EPC that installs and operates.
A family company founded in 2016 in Cournon-d'Auvergne by Jean Renard, after more than thirty years at EDF. EPC — design, supply, construction — and integrator: solar, storage, charging points, and the operation that follows. From homes to multi-megawatt logistics rooftops, with in-house teams, across France.
2016
Founded, in Cournon-d'Auvergne
+1,500
Plants in service, across France
40 MWp
Installed capacity, all plants combined
50
Employees, since 2016
The trade
A single point of contact, from study to operation.
That is the definition of an integrated EPC: the design office, the installation crews, the administrative procedures and operation are all under one roof. The project never changes hands.
02
Planning procedures
Prior declaration or permit: the team prepares and follows the file with the local authority.
03
Installation and commissioning
In-house, trained and qualified installation crews — from roof reinforcement to energisation.
04
Consuel
The certificate attesting the electrical installation's conformity and authorising energisation.
05
Enedis grid connection
Application, follow-up and contracting of the grid connection, handled on the customer's behalf.
06
Operation, monitoring, maintenance
Real-time remote supervision, anomaly detection, maintenance at every power level — throughout the asset's life.
They trust JR Énergie
JR Énergie Conseil references — including motorway service-area canopies for ENGIE. Group presentation, 2026.
The integrator
The whole roof, from a single hand.
Solar never comes alone. JR Énergie also installs storage batteries — now offered systematically with the plants —, charging points, and modernises existing installations (repowering).
And when the roof itself needs redoing, the sister company JP2R takes it on: AFNOR-certified asbestos removal, roof replacement, frame reinforcement. One site, one responsibility.
What it changes for a BESS project
- The same EPC installs the solar plant and the storage: one schedule, one guarantee of proper execution.
- Operation and monitoring are already in place — the battery joins a supervision that already exists.
- Maintenance covers every power level, from residential to multi-megawatt sites.
The reference
Carré de la Garenne: 4.5 MWp installed in two phases on logistics rooftops, grid-connected and delivered as collective self-consumption to businesses and local authorities in Cournon and Aubière. The plant is visible from the company's offices.
The La Montagne article on the site →What can be checked
Qualified for every power level.
Qualifelec SPV1 · SPV2 · SPV3
The electrical trade's solar qualification, up to installations above 250 kVA — that is, every power level.
RGE
Reconnu Garant de l'Environnement — a status verifiable in the French State's official directory (solar photovoltaics and heat pumps).
Qualifelec IRVE
Qualification for electric-vehicle charging infrastructure.
SMA BTP ten-year insurance
Professional liability and ten-year structural warranty taken out with the building trade's reference insurer.
And for your project
The one who installs, in a trio that answers for everything.
JR Batteries designs and structures your storage asset, RelyEZ builds it — and JR Énergie installs and then operates it, as it has done since 2016 for more than 1,500 plants. Three houses, a single chain of responsibility.