NREL Soiling Map Datasets

DuraMAT Adjacent Project

Operational Field Studies

Category: PV Field Data

Recipient None (PI: Muller, Matthew)

Abstract NREL scientists and engineers have generated a map that highlights soiling parameters of fielded photovoltaic panels at 255 locations—either soiling stations or photovoltaic sites—across the United States. Losses are quantified by insolation-weighted soiling ratio (IWSR); an IWSR of 0.95 indicates 5% annual energy loss to soiling. This repository contains the underlying dataset supporting the soiling map.

Photovoltaic Interactive Soiling Map