CleanTech Energy News Science New Analysis: Geothermal Heat Pumps Key Opportunity in Switch to Clean Energy January 31, 2024 admin buildings, clean power, efficient heat pumps, energy efficiency, geothermal energy, geothermal heat pumps, heat pumps, national renewable energy laboratory (nrel), oak ridge national laboratory (ornl), research, us department of energy (doe)Credit to Author: US Department of Energy| Date: Sun, 28 Jan 2024 03:58:40 +0000https://cleantechnica.com/feed/