This 30-panel system has SunPower 327-watt panels and Solectria PVI-6500 and PVI-3000 inverters. Wondering if solar is a good place to invest your money? Check out these numbers:
- 7.8 years to break even
- Average annual return of 8.3%
- 20-year return of 166%
- Average cost of solar electricity – 7 cents per kWh