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Swiss solar startup NRGY One closes seed round, adds builder GLB Gruppe as partner

What's the deal? Swiss startup NRGY OneDealroom has a profile for this one. Try Dealroom → has closed a seed round backed by existing partners and investors, with construction and building-technology firm GLB Gruppe joining as a new strategic partner. The company runs StromkontoDealroom has a profile for this one. Try Dealroom →, a platform that lets solar producers digitally bank the power they generate.

What's the endgame? NRGY One — formerly Siima SolutionDealroom has a profile for this one. Try Dealroom → — will use the money to speed growth at home, expand its team, and turn Stromkonto into a digital energy trading platform. The goal: let any prosumer trade their own power directly, without an energy supplier.

How does it work? Since July 2025, Stromkonto users have banked self-produced solar power in a virtual account and drawn it down when needed. The platform nets production against consumption, so users can tap their own electricity across the year without a storage battery. The setup combines an app, a smart measuring device that connects to existing smart meters, and a new billing model.

Why the partner matters? GLB Gruppe spans seven companies at 11 sites in Switzerland, covering planning, construction, heating, photovoltaics, and building automation. NRGY One will handle energy and energy trading, letting the two offer homeowners and small businesses a full package — from rooftop system to selling the solar power it generates.

Why now? The company wants to position Stromkonto as a "Neo Energy Supplier" ahead of the opening of the Swiss electricity market.

The signal: As Switzerland moves to liberalise its power market, startups are racing to build the tools that let households sell their own solar output. NRGY One is betting the winners will pair software with hardware partners already on the roof.

Read more: startupticker.ch

Image credit: thetimchannel

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