Keep it real. Anyone who has actually worked with solar knows the perfect roof, the perfect angle and cloudless skies almost never line up. Every figure on this page is built on real-world averages — typical sun hours for your state, ordinary system losses (heat, dust, wiring, less-than-ideal orientation) and today’s electricity prices — not lab conditions. Use the results as a realistic ballpark, not a quote.
Plug-in solar vs. rooftop solar — ROI calculator
Sundrop plug-in solar
- Est. upfront cost
- System size
- Est. yearly production
- Est. yearly bill savings
- Simple payback
- Net savings, 20 yrs
- Cost per watt
Typical rooftop solar
- Est. upfront cost
- System size
- Est. yearly production
- Est. yearly bill savings
- Simple payback
- Net savings, 20 yrs
- Cost per watt
It was never only about the money
Every kilowatt-hour you make on your own balcony, patio or yard is one that doesn’t have to be burned somewhere else. Plug-in solar won’t fix the grid on its own — but it puts clean energy in the hands of renters and homeowners who were shut out of it, and small choices add up. Going solar is a quiet, daily vote for cleaner air, a steadier climate and a world our kids and grandkids will still be glad to live in.
Estimates only. Sun-hour and electricity-price figures are approximate statewide averages compiled from public data and are refreshed periodically. Actual production and savings depend on your location, roof or site, shading, equipment, utility rate plan and net-metering rules.
