Your heat pump water heater is costing more than it should. The data can show you why.
We diagnose and design central heat pump water heating systems for hotels, grocery and multifamily buildings in California.
- 3utility field studies co-authored
- 10central plants analyzed
- ~1/3of hot-water energy lost to crossover in field studies
What failure looks like in the data.

About AbGarm Energy
AbGarm Energy helps building owners get the hot-water performance they were promised. Our work is technology agnostic: we make sure your plant delivers what it was designed to deliver.
Our work draws on 18 years of energy systems analysis and co-authorship of several California utility emerging-technology studies on central heat pump water heating.
Based in the San Francisco Bay Area; we work statewide.