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NREL's PVWatts® Calculator estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems throughout the world. It allows homeowners, small building owners, installers and manufacturers to easily develop estimates of the performance of potential PV installations.

Partner Agency: U.S. Department of Energy
Resource Type: Interactive Tool
Stakeholder Group(s): Residential; Commercial
Publication Date: N/A

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