Elax Energie makes a smart controller, designed and manufactured in Lannion, France, that retrofits electric water heaters into grid-responsive thermal batteries: it shifts water heating to hours when electricity is cheapest and most decarbonised, cutting consumption by roughly 20-25%. Founded in 2021 and headquartered in Paris, the industrial startup serves social-housing landlords, with nearly 100,000 homes equipped and more than 100 landlord partners, and is expanding into collective boiler-room electrification and a national installer network for households. The device also enables predictive maintenance, detecting limescale and early failures to extend equipment life and protect residents.
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Oct 20, 2026
Latest raise
Funding activity · 1 round
Oct 20, 2026
EUR 30M
Series B
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