Solar power in Indiana has been growing in recent years due to new technological improvements and a variety of regulatory actions and financial incentives, particularly a 30% federal tax credit for any size project. In 2015, Indiana ranked 18th among U.S. states for installed solar power with 136 MW of

photovoltaic panels Photovoltaics (PV) is the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry. The photovoltaic effect is commercially us ...

.Indiana Fact Sheet
Solar Energy Industries Association, accessed May 19, 2016 An estimated 18% of electricity in

Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...

could be provided by rooftop solar panels. In 2011, Indiana's largest solar installation was the six acre array located on the roof of the Maj. Gen. Emmett J. Bean Federal Center in

Lawrence, Indiana Lawrence is a city in Marion County, Indiana, United States. It is one of four " excluded cities" in Marion County. The city is home to Fort Benjamin Harrison within Fort Harrison State Park. The population was 46,001 at the 2010 census. The ci ...

, capable of generating a peak power of over 2 MW. A 17.5MW plant built at the Indianapolis airport in 2013 was the largest airport solar farm in the U.S. A 9MW solar farm was built at the

Indianapolis Motor Speedway The Indianapolis Motor Speedway is an automobile racing circuit located in Speedway, Indiana, an enclave suburb of Indianapolis, Indiana. It is the home of the Indianapolis 500 and the Verizon 200, and and formerly the home of the United State ...

in 2014. The 3.2MW Rockville Solar II is the largest solar roof installation in the state. The Mammoth Solar project in Northwest Indiana broke ground in October 2021, and when complete it will be the largest solar project in the United States, with more than 2.8 million panels producing more than 1 gigawatt of power. The first 400 MW phase was completed in July 2024.

Government policy

The Government of Indiana has taken a variety of actions in order to encourage solar energy use within the state.

Net metering

The state has a

net metering Net metering (or net energy metering, NEM) is an electricity billing mechanism that allows consumers who generate some or all of their own electricity to use that electricity anytime, instead of when it is generated. This is particularly importa ...

program that allows installations of up to 1 MW of on-site electrical generation to continuously roll over any excess generation to the next month. Participation is limited to 1% of utilities most recent peak summer demand. Peak summer demand for the state for 2011 was 20,251 MW.

Feed In Tariff

Indiana's Northern Indiana Public Service Company, NIPSCO, offers a feed-in tariff of $0.30/kWh for systems from 5 to 10 kW, and $0.26/kWh for systems from 10 kW to 2 MW.

AES Indiana AES Indiana, formerly known as Indianapolis Power & Light Company (also known as IPL or IPALCO), is an American utility company providing electric service to the city of Indianapolis. It is a subsidiary and largest utility of AES Corporation, wh ...

has a Renewable Energy Production program that pays $0.24/kWh for solar from 20 kW to 100 kW and $0.20/kWh for solar arrays of from 100 kW to 10 MW. Payments are for 15 years, participation is limited, and one third of the program, 45,900 MWh/year, will be made available through a reverse auction. No new applications will be accepted beyond March 2013.

Indiana Solar Energy Working Group

The Indiana Office of Energy Development has created the Indiana Solar Energy Working Group to promote the development of solar energy, including local manufacturing.Solar Energy
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Statistics

Installed capacity

Utility-scale generation

Major projects

References

External links

Incentives and policiesIndiana Renewable Energy Society
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Economy of Indiana