Frequently Asked Questions

I want to install a 40-sq.ft. solar thermal collector, how much will I save?

Calculating savings for solar thermal:
A 40-sq.ft. solar thermal collector equivalents to roughly 2 kW.

40-sq.ft.collector equivalents kW: 2
1 kW System Production kWh/yr: 1,350

 40 sq.ft. collector equivalents kW:  2
 1 kW System Production kWh/yr:  1,350
 1,350 kWh x 2 =  2,700
 2,700 / 12 (no. of months in a yr) =  225
 225 * $0.14 (OUC rate) =  $ 31.50
 Total monthly savings  $ 31.50
 Total yearly savings  $ 378.00

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