This document summarizes the renewable portfolio standards (RPS) of various US states and Washington DC as of May 2010. It shows that 29 states and Washington DC have an RPS, which requires electricity suppliers to obtain a minimum percentage of their power from renewable sources by a certain date. The required percentages and target dates vary widely between states, with some states requiring as much as 40% renewable power by 2030. Six additional states have renewable portfolio goals rather than binding standards.

1. Renewable Portfolio Standards
www.dsireusa.org / May 2010
VT: (1) RE meets any increase ME: 30% x 2000
WA: 15% x 2020* New RE: 10% x 2017
MN: 25% x 2025 in retail sales x 2012;
MT: 15% x 2015 (Xcel: 30% x 2020) (2) 20% RE & CHP x 2017 NH: 23.8% x 2025
OR: 25% x 2025 (large utilities)* ND: 10% x 2015 MI: 10% + 1,100 MW MA: 22.1% x 2020
x 2015* New RE: 15% x 2020
5% - 10% x 2025 (smaller utilities)
(+1% annually thereafter)
SD: 10% x 2015 WI: Varies by utility;
NY: 29% x 2015 RI: 16% x 2020
10% x 2015 statewide
NV: 25% x 2025* CT: 23% x 2020
IA: 105 MW OH: 25% x 2025†
CO: 30% by 2020 (IOUs) PA: ~18% x 2021†
10% by 2020 (co-ops & large munis)*
IL: 25% x 2025 WV: 25% x 2025*† NJ: 22.5% x 2021
CA: 33% x 2020 UT: 20% by 2025* KS: 20% x 2020 VA: 15% x 2025* MD: 20% x 2022
MO: 15% x 2021
DE: 20% x 2020*
AZ: 15% x 2025
NC: 12.5% x 2021 (IOUs) DC DC: 20% x 2020
10% x 2018 (co-ops & munis)
NM: 20% x 2020 (IOUs)
10% x 2020 (co-ops)
TX: 5,880 MW x 2015
HI: 40% x 2030
State renewable portfolio standard Minimum solar or customer-sited requirement 29 states +
State renewable portfolio goal
Solar water heating eligible *
†
Extra credit for solar or customer-sited renewables
Includes non-renewable alternative resources
DC have an RPS
(6 states have goals)