Italian researchers develop heat pump-Carnot battery for residential solar storage

Researchers have designed a reversible heat pump system that stores excess rooftop solar electricity as heat and reconverts it to power at 35% round-trip efficiency, potentially allowing homes to meet daily electricity demand from PV alone.

First covered Aug 26, 2026 · 11:12 PM PT · 1 article · no longer in the live window

Italian researchers develop heat pump-Carnot battery for residential solar storage — Image via pv-magazine.com

Coverage

31d PV Magazine Heat pump-Carnot battery system for residential PV storage — Italian researchers have developed a reversible heat pump-ORC Carnot battery that stores surplus residential PV electricity as heat and converts it back into…

More coverage from around the web

sciencedirect.com Carnot Battery with open-cycle ultra-high-temperature heat pump for large-scale hybrid PV and concentrating solar power plants - ScienceDirect

sciencedirect.com Optimal integration of solar collectors to Carnot battery system with regenerators - ScienceDirect

sciencedirect.com Carnot battery technology: A state-of-the-art review - ScienceDirect

sciencedirect.com Thermo-economic optimization of a Carnot Battery under transient conditions - ScienceDirect

sciencedirect.com Performance analysis of Carnot battery pumped thermal electricity storage aided with concentrated solar thermal input - ScienceDirect

Appeared in: 2026-08-27 (#6)

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