Differ Power and Tesla veteran Drew Baglino’s Sadi are treating the heat pump as the home’s energy core by pairing AI data center cooling with automotive-grade thermal tech.
Differ Power will introduce its D1 Series at Intersolar Europe 2026 in Munich, positioning the residential heat pump as a power management hub rather than only a heating and cooling appliance.
The D1 Series is described as the world’s first 9-in-1 integrated solar-storage air-to-water heat pump system, combining space heating, cooling, domestic hot water, PV inversion, battery management, PCS, backup power, home energy management, and gateway control into one platform. It uses the low-GWP refrigerant R290 and is designed for European residential heating, cooling, and domestic hot water, including new-build homes, retrofit projects, and properties with existing or planned rooftop PV.
Conventionally one of the largest electrical loads in an electrified home, the heat pump here becomes the point where rooftop PV, battery storage, thermal demand, backup power, and household supply are coordinated. Rather than installing a separate heat pump, solar inverter, battery controller, and energy manager side by side, the D1 Series brings these functions into a single platform. The integrated hybrid solar inverter handles PV inversion and battery charge and discharge, works with stackable externally connected battery storage and can also recover waste heat from its power electronics to raise the heat pump’s COP.
