3 ms·
For the production side of the calculation, take a look at the National Renewable Energy Laboratory's PVWatts tool. Most of the installers build their ROI tools
by kbenne 7y ago
For the production side of the calculation, take a look at the National Renewable Energy Laboratory's PVWatts tool. Most of the installers build their ROI tools on top of this. https://pvwatts.nrel.gov https://pvwatts.nrel.gov