Since the beginning of 2019, four US states, namely New Mexico, Washington, Nevada, and Maryland, and the District of Columbia have revised updward their renewable portfolio standards (RPS).
In January 2019, the District of Columbia increased its RPS target to 100% renewable electricity sales by 2040. New Mexico's RPS target went from 20% of renewable by 2020 to 100% of electricity sales from carbon-free generation by 2045 for investor-owned utilities and by 2050 for cooperative electric utilities. The target has intermittent goals of 50% renewable generation by 2030 and 80% renewable generation by 2040. Nevada raised its RPS target to 50% of sales from renewable generation by 2030, including a goal of 100% of electricity sales from clean energy by 2050. Washington raised its target of 15% of sales from renewable generation by 2020 to 100% of sales from carbon-neutral generation by 2045. Maryland has also updated its RPS from 22.5% of electricity sales from renewable generation by 2024 to 50% by 2030.
In 2018, 29 states and the District of Columbia had RPS, accounting for 63% of electricity retail sales in the United States, and another 8 had a non-binding framework.
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