1Komma5 opens Heartbeat AI to millions of existing home systems

• 1Komma5 Grad’s Heartbeat AI now works with existing PV, batteries, heat pumps and EVs, helping households save and support the grid.

If you already have rooftop solar, a home battery, a heat pump or an EV charger, 1Komma5 Grad wants to run them smarter. The German cleantech firm is opening up its Heartbeat AI energy software so it works with devices people have installed over the years — not just with 1Komma5’s own hardware bundles.

What does that mean in practice? Heartbeat looks at live power prices, weather forecasts and your usage patterns, then quietly schedules the heavy lifting. It pre-heats water when solar is abundant, nudges your heat pump to run when electricity is cheap and cleaner, and charges the car when the grid is calm. The goal is simple: lower bills and lower emissions without you babysitting an app.

The bigger play is aggregation. When thousands of homes run on the same brain, they can act like a miniature power plant. A few minutes of coordinated battery discharge here, a lot of EV charging shifted there, and suddenly the grid rides through a wobble without firing up as many peakers. That’s good for operators — and potentially good for households if they’re paid for the help.

Because Germany’s home energy gear is a patchwork of brands and vintages, openness is the unlock. Heartbeat leans on common inverter and meter standards, and keeps a “fail safe” mode so your devices behave sensibly even if the internet blips. Installers get a single dashboard to commission systems and spot issues quickly.

Why now? Dynamic tariffs are spreading, heat pumps are booming, and mid-day solar is creating very cheap hours followed by very pricey ones. Smarts matter more than ever. By meeting homeowners where they are — with equipment they already own — 1Komma5 can scale fast without asking people to rip and replace.