NREL’s PVWatts® Calculator

The calculator estimates the energy production and energy cost of grid-connected photovoltaic (PV) energy systems worldwide. It allows homeowners, small building owners, installers, and manufacturers to easily develop estimations of the performance of potential PV installations.

Applicability: Energy communities / collective actions in general
Type of tool: Calculator
Regional applicability: No regional restriction (in English)
Complexity: Amateur and expert level (advanced settings) – comprehensive report for experts
Project phase: The tool can be used for the planning phase.
Necessary data for use: The tool does not need any data input and can be used directly.

The tool is available free of charge and without a prior registration.

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