3 ms·

What is your energy cost? $/kWh? If electricity is expensive, the payback period can take longer for residential/commercial applications.

• smcleod 5y ago
  Around 22c/kWh on over over the last month.
  • caminante 5y ago
    While not German-levels of electricity prices, that's still 100% more than my elec price in the US and comparatively worse than gas . Retrofitting a heat pump for me is a negative NPV investment.