Solar Forecast Arbiter

The Solar Forecast Arbiter is an open source tool to enable evaluations of solar irradiance, solar power, and net-load forecasts that are impartial, repeatable and auditable. The Solar Forecast Arbiter supports the U.S. Department of Energy Solar Energy Technologies Office Solar Forecasting 2 program and the broader solar forecast community. Please sign up for the mailing list to receive quarterly project updates.

See the funding page for more information on the project's DOE SETO funding.

The Solar Forecast Arbiter is in an early stage of development, and we need members of the solar forecast community to provide guidance on project development. Please see our Stakeholder Committee page for more information on how you can join the committee and help guide the project development.

Early draft versions of addititional documents are available under the Key Topics menu. These guidance documents will be refined and reviewed by stakeholders through June 2019.