Full Title: Understanding Variability and Uncertainty of Photovoltaics for Integration with the Electric Power System
Author(s): A. Mills, M. Ahlstrom, M. Brower, et al.
Publisher(s): USDOE, Lawrence Berkeley National Laboratory
Publication Date: December 1, 2009
Full Text: Download Resource
Description (excerpt):
Data and analysis are needed to understand the variability of photovoltaic (PV) plants to avoid unnecessary barriers to the interconnection of PV. Several datasets show clouds can cause rapid changes in solar insolation. Smoothing of rapid ramps, however, occurs within PV plants. The degree of smoothing depends on plant size. Smoothing occurs on even longer time-scales between separate plants.