- A state-by-state look at renewable energy requirements -

Twenty-nine states and the District of Columbia have requirements that utilities get a certain amount of their electricity from renewable sources. Nine additional states have goals for renewable energy, while a dozen others have no targets. A state-by-state look at renewable energy policies.

ALABAMA
No renewable energy standard.

ALASKA
A bill passed in 2010 sets a goal, but not a requirement, for Alaska to receive half its electricity from renewable and alternative energy sources by 2025.

ARIZONA
Public utilities must get 6 percent of their electricity from renewable sources in 2016, gradually rising annually to 15 percent by 2025.

ARKANSAS
No renewable energy standard.

CALIFORNIA
Utilities must get one-third of their electricity from renewable energy sources by 2020. That requirement rises to 40 percent by 2024, 45 percent by 2027 and half of all electricity by 2030.

COLORADO
Utility companies currently must get 20 percent of their electricity from renewable energy sources, rising to 30 percent by 2020. The standards are lower for electric cooperatives and municipal suppliers, topping out at 10 or 20 percent by 2020 depending on their size.

CONNECTICUT
Utilities must get 21 percent of their electricity from renewable energy sources in 2016, gradually rising annually to 27 percent by 2020.

DELAWARE
Utilities must derive 13 percent of their electricity from renewable energy sources this year, gradually rising annually until reaching 25 percent in 2025.

FLORIDA
No renewable energy standard.

GEORGIA
No renewable energy standard.

HAWAII
Utility companies must provide 15 percent of their electricity from renewable sources this year. That requirement rises to 30 percent in 2020, 40 percent in 2030 and 70 percent in 2040. By 2045, all electricity must come from renewable sources.

IDAHO
No renewable energy standard.

ILLINOIS
Utilities are required to get at least 10 percent of their electricity from renewable energy sources this year, gradually rising annually to 25 percent by 2025.

INDIANA
Public utilities can receive regulatory approval for larger earnings if they agree to obtain at least 10 percent of their electricity from renewable sources by 2025. As much as 30 percent of that target can come from clean-burning coal facilities, nuclear power and natural gas generators that displace coal-fired plants.

IOWA
The state adopted the nation's first renewable energy law in 1983, requiring investor-owned utilities to have 105 megawatts of generating capacity from renewable sources. Utilities have far exceeded that threshold.

KANSAS
A state law had required at least 20 percent of a utility's peak demand for electricity to come from renewable sources by 2020. But an amendment passed this year made that a voluntary goal.

KENTUCKY
No renewable energy standard.

LOUISIANA
No renewable energy standard.

MAINE
At least 40 percent of total retail electricity sales must come from renewable energy sources by 2017.

MARYLAND
Utilities must comply with a gradually increasing standard that requires at least 20 percent of electricity to come from renewable sources by 2022.

MASSACHUSETTS
Utilities must derive 11 percent of their electricity from renewable sources in 2016, gradually rising to 15 percent by 2020 and growing by an additional 1 percent annually thereafter.

MICHIGAN
Utilities must get 10 percent of their electricity from renewable energy sources as of this year.

MINNESOTA
Most utilities must provide 17 percent of their electricity from renewable sources in 2016, rising to 21.5 percent in 2020 and 26.5 percent in 2025. The state's largest utility faces a higher standard of 25 percent from renewable sources by 2016 and 31.5 percent by 2020.

MISSISSIPPI
No renewable energy standard.

MISSOURI
Investor-owned utilities currently must get 5 percent of their electricity from renewable sources, rising to 10 percent in 2018 and 15 percent beginning in 2021.

MONTANA
Public utilities must get at least 15 percent of their electricity from renewable sources as of this year.

NEBRASKA
No renewable energy standard.

NEVADA
Utilities currently must derive 20 percent of their electricity from renewable energy sources. That requirement rises to 22 percent in 2020 and 25 percent in 2025.

NEW HAMPSHIRE
Utilities must get 16.7 percent of their electricity from renewable energy sources in 2016, gradually rising annually to 24.8 percent in 2025.

NEW JERSEY
Utilities must get more than 20 percent of their electricity from renewable energy sources by 2020.

NEW MEXICO
Public utilities currently must provide at least 15 percent of their electricity from renewable sources, rising to 20 percent by 2020. Rural electric cooperatives face a lesser standard of 5 percent renewable sources this year, rising to 10 percent by 2020.

NEW YORK
Utilities must get 29 percent of their electricity from renewable sources as of this year. Gov. Andrew Cuomo has set a goal of renewable sources comprising half of all electricity by 2030.

NORTH CAROLINA
Utilities currently must provide 6 percent of their electricity from renewable sources, rising to 10 percent in 2018. For investor-owned utilities, that rises to 12.5 percent in 2021.

NORTH DAKOTA
State law sets a voluntary goal of supplying 10 percent of electricity from renewable sources by this year.

OHIO
A state law had required utilities to get 25 percent of their electricity from alternative sources by 2025, with half of that coming from renewable sources and half from improved technologies such as clean-burning coal or nuclear facilities. But a 2014 law put a hold on the gradual implementation of those standards, meaning the renewable energy portion of that requirement will remain at 2.5 percent in 2016.

OKLAHOMA
State law sets a goal, but not a        requirement, for 15 percent of electrical generating capacity to come from renewable sources as of this year.

OREGON
Large utilities currently must get 15 percent of their electricity from renewable sources, rising to 20 percent in 2020 and 25 percent in 2025. Smaller utilities face a renewable requirement of either 10 percent or 5 percent by 2025, depending on their size.

PENNSYLVANIA
Utilities currently must get 13.7 percent of their electricity from renewable sources, gradually rising annually to 18 percent by 2021. A portion of that can come from clean-burning coal facilities.

RHODE ISLAND
The state Public Utilities Commission delayed a scheduled increase this year in its renewable energy standards, citing a potentially inadequate supply. That held the requirement at 8.5 percent — instead of 10 percent — of electricity coming from renewable sources.

SOUTH CAROLINA
Utilities may choose to participate in an energy program that includes at least 2 percent of their electricity coming from in-state renewable energy facilities by 2021.

SOUTH DAKOTA
State law sets a voluntary goal of 10 percent of electricity coming from renewable sources and conservation efforts as of this year.

TENNESSEE
No renewable energy standard.

TEXAS
In 1999, the state set a target of having 5,880 megawatts of generating capacity from renewable energy by this year, with a goal of 10,000 megawatts by 2025. That long-range goal already has been exceeded.

UTAH
State law sets a target for utilities to provide about 20 percent of their electricity from renewable sources by 2025, if it is cost-effective to do so.

VERMONT
A law enacted this year converted Vermont's renewable energy targets to requirements, meaning utilities will have to get 55 percent of their electricity from renewable sources in 2017. That will rise periodically until it reaches 75 percent in 2032.

VIRGINIA
Investor-owned utilities have a voluntary 2016 state goal for their renewable energy to equal 7 percent of their electricity sales in 2007. That goal rises to 12 percent in 2022 and 15 percent in 2025.

WASHINGTON
Large utilities must obtain at least 9 percent of their electricity from renewable sources by 2016 and 15 percent by 2020.

WASHINGTON, D.C.
Utilities must provide an amount of electricity from renewable sources that increases each year, reaching 20 percent in 2020.

WEST VIRGINIA
Lawmakers this year repealed a 2009 law that had set a goal for large investor-owned utilities to get 10 percent of their electricity from renewable sources in 2015 and 25 percent by 2025. The repealed law had included certain coal and natural gas facilities in its description of renewable sources.

WISCONSIN
State law sets a target of 10 percent of all electricity coming from renewable sources this year. Requirements vary for each utility, but the amount of renewable energy must be at least 6 percentage points above its 2001-2003 average.

WYOMING
No renewable energy standard.