Work Item
ASTM WK85254

New Guide for Photovoltaic (PV) Soiling Methodologies

1. Scope

To provide explanation and terminology associated with making measurements of PV soiling and interpreting the data.


Soiling; Dust; Soiling Ratio; Soiling Losses


A recent IEA Task 13 report estimated global economic losses in solar energy to be ~7 Billion Euros. While the problem appears to be pervasive, there are no standards providing guidance or any clarity on the various methodologies and what can be expected from the data. Further, there are sizeable problems relating the resource assessment (preconstruction) data with operational (post construction) data as well as the spatial heterogeneity of soiling across a project.

The title and scope are in draft form and are under development within this ASTM Committee.


Developed by Subcommittee: E44.09

Committee: E44

Staff Manager: Kristy Straiton

Work Item Status

Date Initiated: 02-10-2023

Technical Contact: William Beuttell

Item: 000