1 Prices, in nominal dollars, equal shipment value divided by quantity shipped.
Value includes charges for advertising and warranties.
Excluded are excise taxes and the cost of freight or transportation for the shipments. Shipments of cells and modules for space and satellite applications are not included. 3 Data were imputed for one nonrespondent who exited the industry during 1990. 1993 forward - EIA, Renewable Energy Annual, annual reports.