Home / Trusted resources
Trusted solar resources
Independent tools and data we use and recommend. None of these links are paid.
Estimate production for your exact address
- NREL PVWatts — the industry-standard free production calculator from the National Renewable Energy Laboratory.
- Global Solar Atlas — solar resource for any point on Earth, from the World Bank and Solargis.
Find incentives
- DSIRE — the most complete database of US state, local and utility incentives.
- IRS Residential Clean Energy Credit — official rules, including the end date for homeowner systems.
- Natural Resources Canada — federal home energy programs.
- Ofgem Smart Export Guarantee — UK export payments.
- Clean Energy Regulator (Australia) — STCs and the Cheaper Home Batteries program.
- PM Surya Ghar (India) — rooftop solar subsidy portal.
Consumer protection
- US DOE Homeowner's Guide to Going Solar
- FTC: solar power for your home — scams and contract warnings.
- SEIA — industry data and the solar consumer protection guide.
Prices and market data
- EIA Electric Power Monthly — official electricity prices by state.
- Berkeley Lab Tracking the Sun — installed price trends from millions of systems.
- IRENA — global renewable cost statistics.
Find a certified professional
- NABCEP — the main North American solar installer certification. Look up certified pros.
Suggest a resource
Know a great free tool or dataset? Tell us about it.