A recent study by Ceres — "Practicing Risk-Aware Electricity Regulation: What Every State Regulator Needs to Know" — concluded that the least cost and least risk for future energy resources is energy efficiency. Indeed, the lowest cost unit of energy...
The question arises from time to time in building industry blogs about whether or not geothermal heat pumps (GHPs) are a source or renewable energy. GHPs, or ground-source heat pumps, don't fit neatly into any box, but suffice it to say that their appeal...