Authorised OIBT inspectors · Swissolar certified
Your solar electricity, produced and under control.
Estimate your savings in 30 seconds. Electricians and inspectors before being solar installers: we design your installation from the roof right down to the electrical panel.
For a Swiss address, we read the real area and orientation of your roof from the federal solar cadastre.
- 350+
- OIBT inspections carried out
- 120+
- Installations completed
- 2012
- Since
- 25 years
- Panel warranty
- −70%
- Electricity bill
- Authorised OIBT inspectors
- Swissolar certified
- Our own installers, no subcontracting
- All of French-speaking Switzerland
What sets us apart
From the electrical panel to the solar panels.
interfaces énergies comes from electrical engineering and OIBT inspection (the Swiss low-voltage installations ordinance). Today we put that expertise into photovoltaic installations designed as a whole: panels, inverter, protections, electrical panel and grid connection.
Authorised OIBT inspectors
Inspection and electrical safety
Swissolar certified
Photovoltaic design
Our own installers
No chains of subcontractors
Why switch to solar now
Electricity is expensive in Switzerland
Every kilowatt-hour you produce is a kilowatt-hour you no longer buy. Self-consuming means taking back control of a bill that keeps rising.
The federal grant reduces the bill
The Pronovo one-off payment is deducted directly from the cost of the installation. Depending on your municipality, other support may be added — the net cost is far from the advertised price.
A battery keeps your surplus
Without storage, most of what you produce goes to the grid for a modest payment. A battery raises your self-consumption from 30 to 70%.
How it works
- 01
You run the simulation
In 30 seconds, with no commitment and without leaving an e-mail address. The result is shown before we ask you for anything.
- 02
You receive a first estimate
Within moments, you get a first estimate of your solar project, based on the information entered in the simulator. It is an order of magnitude, not yet a quote.
- 03
We check before the final quote
During the technical visit, we look at the roof but also at the existing electrical installation: panel, connection, protections and feasibility. We confirm the project and prepare a quote that reflects what will really need to be done.
- 04
We design and install
Sizing, panels, inverter, electrical protections and grid connection are designed as a single installation. We handle the grant paperwork and the notification to the grid operator.
- 05
You produce
You follow your production and your self-consumption. The panel warranty runs for 25 years.
They switched to solar
The simulator predicted about 1,800 francs in savings per year. After a full year, we are almost exactly there.
The R. family · Lausanne
8 kWp with battery
What decided me was that they took care of the Pronovo application and the notification to the grid. I had nothing to fill in.
Mr B. · Sion
10 kWp
The battery changed things: I use in the evening what I produce in the afternoon, instead of selling it back at a third of the price.
Mrs D. · Geneva
6 kWp with 10 kWh battery
How much could you save?
The calculation is free, instant, and asks for no contact details to show its result.
Calculate my savings