Payback Math
Every input a payback figure rests on — production, rate, escalation, financing — rebuilt for a year with no 30% federal credit behind it.
- Payback Math Solar Payback Period Without the 30% Credit: Redo the Math The credit was 30% of the sticker price and 58% of the amount you were actually earning back. Nine inputs, one formula, and a 7.7 kW roof carried to a year.
- Payback Math Solar Loan vs Lease vs PPA: Total Cost Against Cash One $24,000 roof, four contracts, 25 years. The year a 2.9% lease escalator overtakes your bill savings, and the numbers to copy from your own paperwork.
- Payback Math Solar Loan Dealer Fees: Why the Cash Price Is Lower One system, $28,700 in cash or $38,818 financed. How a solar loan dealer fee hides outside the APR, and the payoff month where it stops costing you.
- Payback Math Solar Production Estimate: Check a Quote With PVWatts Five multiplications take a 7.2 kW roof from sunlight to 11,473 kWh a year. Run them on your address and see whether a quote's kWh was modelled or typed.
- Payback Math Is Solar Worth It: Four Numbers on Your Electric Bill Georgia Power prints 15.08 cents per kWh; the kWh actually costs 21.29. Four lines on your own bill set a solar payback, and two of them are not printed.