French Solar Startup Heliup Raises $17M for Rooftop Panels
A French company just secured €16 million ($17M) to manufacture solar panels light enough for older roofs that can't handle heavy equipment. Heliup's innovation could unlock millions of square feet of untapped rooftop space across Europe.
Thousands of European buildings with aging roofs have sat empty handed during the solar boom, unable to support traditional heavy panels. Now a French startup is changing that equation.
Heliup raised €16 million this month to scale production of lightweight solar panels specifically designed for rooftops with low load-bearing capacity. The company sees a massive untapped market in older commercial and residential buildings that were left out of the renewable energy revolution.
The funding round attracted major European investors including Supernova Invest, MAIF Impact, and Lita Gestion. Individual investors also joined through a crowdfunding campaign, allowing everyday citizens to back the technology.
The company operates a 4,000 square meter factory in Le Cheylas, France, which opened in January 2025. The facility can produce 100 megawatts of solar capacity annually, enough to cover about 500,000 square meters of rooftop space.
Heliup launched its first pilot production line in 2023 with support from France's national innovation program. The European Union's Innovation Fund helped finance the jump to full industrial scale through its SHEEFT project.
The Ripple Effect
This funding means more than just one company's growth. Heliup plans to create 100 direct jobs by 2027, with 40 positions already filled in France's Auvergne-Rhône-Alpes region.
From 2028 onward, the company aims to increase production capacity tenfold. That expansion supports Europe's push toward energy independence and brings high-tech manufacturing jobs back to the continent.
The lightweight design solves a real barrier that's kept countless buildings on the sidelines. Schools, hospitals, warehouses, and apartment buildings with structural limitations can now join the clean energy transition without expensive roof reinforcements.
Each new installation chips away at Europe's dependence on imported fossil fuels while putting underused rooftop real estate to work.
Sometimes the biggest breakthroughs come from asking a simple question: what if we made them lighter?
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Based on reporting by PV Magazine
This story was written by BrightWire based on verified news reports.
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