Project Sunroof is a Google project that helps users calculate their rooftop's solar energy potential. It uses Google Maps data to analyze...
Best PVWatts Alternatives ranked by AI · updated May 2025
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PVWatts is a solar energy modeling tool developed by the National Renewable Energy Laboratory (NREL). It estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems.
Price: Free
Top 3 PVWatts alternatives
EnergySage helps consumers compare solar quotes and make informed decisions about solar energy.
Pros
- Solar marketplace
- Educational resources
Cons
- Limited to solar energy
- Focused on quotes rather than usage data
Free to use for consumers, paid plans for solar installers
Solar-Estimate provides solar panel cost and savings estimates based on roof details and location. It also offers quotes from local solar installers.
Pros
- Detailed cost and savings estimates
- Connects users with local installers
Cons
- Limited to estimates without on-site assessment
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