Full Title: Maintaining Electric Reliability with Wind and Solar Sources: Background and Issues for Congress
Author(s): Ashley J. Lawson
Publisher(s): Congressional Research Service
Publication Date: June 10, 2019
Full Text: Download Resource
The share of wind and solar power in the U.S. electricity mix grew from 1% in 2008 to 8% in 2018. Wind and solar are variable renewable energy (VRE) sources. Unlike conventional sources, weather variability creates uncertainty about the availability of VRE sources. This uncertainty could potentially result in a lack of reliability.