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For professionals · Solar

Rooftop solar

A photovoltaic plant on the roof of your workshop, shop, shed or farm building, sized on your daytime consumption.

  • Free roof study
  • Installation by RGE-qualified teams
  • Warranties detailed in the proposal
Your project

Rooftop solar: the essentials

We study, install and monitor a small photovoltaic plant on the roof of your premises, workshop, shed or farm building, to produce part of the electricity you consume.

Who is it for, and for what uses?

It suits craftspeople, shopkeepers, farmers and very small businesses whose building has a usable roof and daytime consumption: workshop, shed, shop, office.

What it changes for you

You produce on site part of the energy you use. The installation is carried out by RGE-qualified teams (Reconnu Garant de l'Environnement), and warranty terms are specified in the proposal.

Which roofs are suitable?

A well-exposed roof (south, south-east or south-west), tilted at around 30 degrees and free of lasting shade (tree, neighbouring building) gives the best yield. An east-west orientation also suits consumption spread across the day.

The structure must carry the weight of the panels and the condition of the roofing matters: we check both during the roof study, before any commitment.

How is the plant sized?

On your daytime consumption, not on the roof area. A plant that is too large injects surplus, resold for less than the electricity you buy from the grid; a plant that is too small leaves daytime consumption unused.

We start from your bills, your load curve (your consumption recorded in 30-minute steps) and your working hours.

Which grants and financing?

Depending on installed capacity, the project may benefit from an investment grant for self-consumption and a feed-in tariff for the surplus, or fall under a CRE (French energy regulator) call for tenders. These schemes change regularly.

We check the conditions in force at the date of your file and cost the chosen structure before you commit.

What maintenance and monitoring?

Panels need little upkeep: regular visual inspection and occasional cleaning, with rain doing most of the work in most regions. The inverter is the most heavily used piece of electronics: it is usually replaced before the panels.

Online production monitoring lets you spot an abnormal drop and compare it with what the plant should produce.

Go further: read the guide

Our solution

A rooftop solar project follows three key stages:

CriterionWith Eneffic
Roof studyStructure, orientation, shading and production potential
InstallationInstallation by RGE-qualified teams
MonitoringProduction and consumption tracked online

Thomas's take, our expert

A good solar installation is sized on your daytime consumption, not on the available roof area. I start from your bills and your working hours.

Thomas, Energy expert

Our support

A single contact supports you at every step, from the initial analysis to long-term follow-up.

YOUR PROJECT STEP BY STEP

  1. Roof study

    We analyse the roof, shading and daytime consumption.

  2. Sizing and financing

    We define the capacity and the financing structure.

  3. Installation and connection

    We install the plant and handle the connection.

  4. Commissioning and monitoring

    We track production over time.

Key takeaways

  • A study to decide

    You know whether your roof suits before committing.

  • Qualified installation

    RGE-qualified teams carry out the installation.

  • Production monitoring

    You measure what the plant actually produces.

Let's talk about your solar project

Our advisors study your building or car park and your daytime consumption, then size the plant that suits you.

Free quote · No commitment · Reply within 24 h

Reviews

They trust us

Feedback from clients supported by Eneffic, received by email and anonymised at their request.

We were looking for a clear electricity contract and someone available to answer our questions. The team took the time to explain the offer and the paperwork was simple.

Eneffic client

Business client

What we like about Eneffic is being able to reach someone who knows our file. When we have a question, we get a clear answer.

Eneffic client

Business client

We had several sites with different renewal dates. Eneffic helped us get a clearer picture and simplify how we track our electricity contracts.

Eneffic client

Multi-site client

We wanted better control of our electricity budget. The conversations helped us understand the options and choose the one that fit our business.

Eneffic client

Business client

The change of supplier went well. We were supported through the process and kept informed until the contract started.

Eneffic client

Business client

An accessible team that takes the time to explain things. For a small business like ours, it is a relief not to have to become an energy expert to understand our contract.

Eneffic client

Client, small business