Theoretical wind power production indices (MWh) designed to facilitate risk transfer. Indices are available for power regions and custom portfolios. Regional indices are used by conventional power producers to hedge an unexpected influx of wind power to the grid, while portfolio indices are used by producers to hedge a lack of wind production. Hourly index values are available from 1979 to present. Settlement values are published as Initial Settlement each day with Final Settlement available within 7 days by Speedwell Settlement Services.