Efficiency Comparison of Solar-Assisted Heat Pump Water Heaters vs. Traditional Electric Water Heaters
Efficiency Comparison of Solar-Assisted Heat Pump Water Heaters vs. Traditional Electric Water Heaters Solar-assisted heat pump water heaters demonstrate significantly superior efficiency compared to conventional electric water heaters. Below is an in-depth analysis of their relative performance. Coefficient of Performance (COP) Solar-assisted heat pump water heaters can achieve a Coefficient of Performance (COP) ranging from 2.0 to 5.4 , indicating they produce 2 to 5.4 times more thermal energy than the electrical energy they consume. This metric highlights their effectiveness in converting energy. In contrast, traditional electric resistance heaters have a COP of approximately 0.9 , which translates to about 90% efficiency. This lower efficiency means that they consume more electricity for the same amount of hot water production. Energy Savings A novel photovoltaic (PV)-assisted heat pump water heater has demonstrated an 83% reduction in water heat...