Helvisun Sàrl, based in Villeneuve (canton of Vaud), is a family business specializing in renewable energy solutions in Switzerland's French-speaking region. A member of Swissolar, PV Cycle and PAC Système, Helvisun guarantees installations of photovoltaic panels, heat pumps, storage batteries and charging stations for electric vehicles, with top-of-the-range products and comprehensive support.

Thanks to a multidisciplinary team combining technicians, engineers and consultants, Helvisun handles the technical and financial study, administrative procedures, turnkey installation, compliance checks and ongoing maintenance of your energy systems. Responsiveness is at the heart of their service: an installation is generally completed within an average of 2 months from site authorization.

Helvisun relies on recognized partners (Axitec, Trina Solar, Huawei, SolarEdge, Fronius, BYD, Panasonic, Vaillant, etc.) to guarantee reliable, high-performance solutions. Witness their concrete achievements in French-speaking Switzerland: photovoltaic installations (up to 7.83 kWp), Daikin heat pumps (up to 14 kW), GEN24 hybrid inverters + BYD 13.8 kWh batteries, Wattpilot charging stations - notably in Saint-Sulpice, Rossens, Lutry, Fully, Romont, Grancy, Cottens, Martigny.

Located in the cantons of French-speaking Switzerland, Helvisun fosters a relationship of trust, local proximity and personalized customer care