CleanTech Energy News Science Central Heat Pump Water Heaters Can Act As Massive Water Batteries, Seattle Pilot Project Shows March 3, 2023 admin buildings, energy efficiency, Energy Storage, heat pump water heaters, heat pumps, WaterCredit to Author: Joe Wachunas| Date: Tue, 28 Feb 2023 16:45:37 +0000https://cleantechnica.com/feed/