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Over the many years I have taught electrification basics for the Wisconsin Public Utilities Institute’s (WPUI) Energy Utilities Basics course, I dive deeply into heat pumps and their impact on the grid. I explain the messy chart in Figure 1 like a palm reader, except I have engineering behind my assertions rather than mystical conjectures. Cold-Climate, Air-Source Heat Pump Performance As outdoor temperatures fall below zero Fahrenheit, as they do from the panhandle of Idaho and Wyoming across the country to Maine and Massachusetts, cold-climate air source heat pump (CCHP) performance and capacity dive while heating loads increase. The chart…
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