Knowledge Tree
Relations (1)
cross_type 2.32 — strongly supporting 4 facts
The U.S. is related to renewable portfolio standards because numerous states within the country have implemented these policies to drive renewable energy capacity, as evidenced by [1], [2], and [3], while the fragmented nature of these state-level standards has impacted national energy innovation as noted in [4].
Facts (4)
Sources
The Power of Change: Innovation for Development and Deployment ... nationalacademies.org 4 facts
measurementApproximately 46 GW of new renewable generating capacity was developed in the 29 states with Renewable Portfolio Standards by the end of 2012, representing two-thirds of all non-hydro renewable electricity generation capacity additions in the United States since 1998.
measurementAs of 2016, 29 U.S. states and the District of Columbia have implemented Renewable Portfolio Standards (RPSs), which account for 64 percent of total U.S. electricity sales.
measurementEight U.S. states have adopted voluntary renewable energy goals, and when combined with the 29 states that have mandatory Renewable Portfolio Standards, these 36 states account for nearly three-quarters of U.S. electricity sales.
claimThe lack of consistent policies for market scale and the fragmented nature of state-enacted renewable portfolio standards have hindered innovation and private-sector investment in renewable energy technologies.