Mothernaturesolar
Member
- Joined
- Aug 20, 2012
- Messages
- 24
A four panel 1 kw system, with Enphase M215 inverters, in California with PGE rates, will get you 21,000 miles per year. Here are the calculations-
1,000 watt system
x1.75 multiplier used to predict production (determined from data from real installs)
1,750 kwh’s produced per year (south facing panels)
1,750 kwh’s
x 3 multiplier for solar produced power with PGE time-of-use billing
5,250 kwh’s available from PGE for charging at night for 1,750 kwh’s made during day
5,250 kwh’s
x 4 miles per kwh of charging
21,000 miles driven per year
How much is that worth to you?
21,000 miles / 25 mpg = 840 gallons @ $3.35 per gallon = $2,814 saved per year
If you drive 21,000 miles per year, a 4.25 kw solar system will pay itself off in approximately 25 months (by combining the electric savings, the PGE rebate, the federal tax credit, and your gas savings). Is that cool or what?
1,000 watt system
x1.75 multiplier used to predict production (determined from data from real installs)
1,750 kwh’s produced per year (south facing panels)
1,750 kwh’s
x 3 multiplier for solar produced power with PGE time-of-use billing
5,250 kwh’s available from PGE for charging at night for 1,750 kwh’s made during day
5,250 kwh’s
x 4 miles per kwh of charging
21,000 miles driven per year
How much is that worth to you?
21,000 miles / 25 mpg = 840 gallons @ $3.35 per gallon = $2,814 saved per year
If you drive 21,000 miles per year, a 4.25 kw solar system will pay itself off in approximately 25 months (by combining the electric savings, the PGE rebate, the federal tax credit, and your gas savings). Is that cool or what?