Wikipedia

Solar power in Indiana

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.[1]

US annual average solar energy received by a latitude tilt photovoltaic cell (modeled)

As of 2026, Indiana ranked 11th among U.S. states for installed solar power with 6.5 GW of photovoltaic panels,[2] up from 18th place with 136 MW in 2015.[3] The state nearly doubled its installed capacity in 2025, installing the third most capacity that year.[4]

An estimated 18% of electricity in Indiana could be provided by rooftop solar panels.[5]

Community Solar Array, Linden

A 17.5MW plant built at the Indianapolis airport in 2013 was the largest airport solar farm in the U.S.[6] A 9MW solar farm was built at the Indianapolis Motor Speedway in 2014.[7][8]

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.[9][10] The first 400 MW phase was completed in July 2024.[11]

Government policy

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

Net metering

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The state eliminated its net metering program in 2022.[12]

Feed In Tariff

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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.[13] AES Indiana 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.[14]

Indiana Solar Energy Working Group

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The Indiana Office of Energy Development has created the Indiana Solar Energy Working Group to promote the development of solar energy, including local manufacturing.[15]

Statistics

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Installed capacity

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Source: NREL[16]
Indiana solar power from 2013 to 2025
Grid-connected PV capacity (MWp)[17][18][19][20][21][22][23][3]
Year Capacity Installed % Change
20090.30.3>200%
20100.50.267%
20113.53600%
20124.40.926%
201349.4451022%
201411259111%
20151362421%
20162178160%
20172806329%
20183274716.7%
20194209328.4%
2020473.353.312.6%
20211,618.81,145.5%
20221,64021.2%

Utility-scale generation

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Utility-scale solar generation in Indiana (GWh)[24]
Year Total Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
20132900111111111011
2014103347810121111111196
20151557913151515161714121210
201622791715172121242424211915
201727681922223035333131181512
201829012102934343338322721911
2019322132029303135434029241513
2020358121727313748454235301915
2021532242545637169686968524768
20221,1626072941011211421311221101006445
20232434786110

Major projects

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This section is an excerpt from List of power stations in Indiana § Solar.[edit]
Name Location In service
dates		 Nameplate
capacity		 Owner(s)
Bellflower Solar Project[25] Henry County 2023 152.5 MW Lightsource bp
Cavalry[26] White County 2024 200 MW NIPSCO
Dunns Bridge 1[27] Jasper County 2023 265 MW NIPSCO
Hardy Hills[28][29] Clinton County 2024 195 MW AES
Honeysuckle[30][31] New Carlisle 2024 188 MWdc Lightsource bp
Indiana Crossroads[27] White County 2023 200 MW NIPSCO
Mammoth North[32][33][34] Starke County 2024 400 MWdc Doral Renewables
Mammoth South[32][33][35] Pulaski County 2026
(under construction)		 300 MWdc Doral Renewables
Riverstart Solar Park Modoc 2021 200 MW[36] Connor Clark & Lunn Infrastructure (80%)
EDP Renewables North America (20%)[37]

See also

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References

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  1. ↑ 30% No Limit Federal Tax Credit!
  2. ↑ "Indiana". SEIA. Retrieved 2026-03-26.
  3. 1 2 Indiana Fact Sheet, Solar Energy Industries Association, accessed May 19, 2016
  4. ↑ Hartley, Sophie. "Despite roadblocks, Indiana's solar capacity nearly doubled last year". The Indianapolis Star. Retrieved 2026-03-26.
  5. ↑ Report Argues for a Decentralized System of Renewable Power Generation
  6. ↑ INDSolarFarm
  7. ↑ Indiana, SEIA
  8. ↑ 2 new solar farms being planned in Indiana[dead link], BloombergBusinessWeek, September 19, 2014
  9. ↑ Bowman, Sarah. "Northwest Indiana will be home to largest solar farm in U.S., covering 13,000 acres". The Indianapolis Star. Retrieved 2021-11-10.
  10. ↑ "Mammoth Solar | Doral Renewables". Retrieved 2021-11-10.
  11. ↑ Brown, Alex. "Doral CEO excited to bring Mammoth North Solar project to the grid". Inside INdiana Business. Retrieved 2024-07-11.
  12. ↑ "Net metering in Indiana". Solar United Neighbors. Retrieved 2026-03-26.
  13. ↑ NIPSCO - Feed-In Tariff
  14. ↑ Indianapolis Power & Light - Rate REP
  15. ↑ Solar Energy
  16. ↑ "PV Watts". NREL. Retrieved 24 January 2013.
  17. ↑ Sherwood, Larry (August 2012). "U.S. Solar Market Trends 2011" (PDF). Interstate Renewable Energy Council (IREC). Archived from the original (PDF) on 2012-09-06. Retrieved 2012-08-16.
  18. ↑ Sherwood, Larry (June 2011). "U.S. Solar Market Trends 2010" (PDF). Interstate Renewable Energy Council (IREC). p. 20. Retrieved 2011-06-29.
  19. ↑ Sherwood, Larry (July 2010). "U.S. Solar Market Trends 2009" (PDF). Interstate Renewable Energy Council (IREC). p. 23. Archived from the original (PDF) on 2010-09-25. Retrieved 2010-07-28.
  20. ↑ Sherwood, Larry (July 2009). "U.S. Solar Market Trends 2008" (PDF). Interstate Renewable Energy Council (IREC). p. 16. Archived from the original (PDF) on 2009-11-23. Retrieved 2010-07-24.
  21. ↑ Sherwood, Larry (July 2012). "U.S. Solar Market Trends 2012" (PDF). Interstate Renewable Energy Council (IREC). p. 16. Retrieved 2013-10-11.
  22. ↑ Sherwood, Larry (July 2014). "U.S. Solar Market Trends 2013" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2014-09-26.
  23. ↑ Indiana Solar
  24. ↑ "Electricity Data Browser". U.S. Department of Energy. March 28, 2018. Retrieved October 7, 2021.
  25. ↑ "Bellflower Solar enters commercial operations" (Press release). Lightsource bp USA. 2023-05-23. Retrieved 2023-09-10.
  26. ↑ "NIPSCO's Electric Generation Transition Continues with Completion of Third Solar Project" (Press release). NIPSCO. August 19, 2024. Retrieved 2024-08-21.
  27. 1 2 "NIPSCO brings online its first two Indiana solar projects". Power Engineering. July 12, 2023. Retrieved 2023-11-10.
  28. ↑ "Directory of Power Plants in Indiana". GridInfo. Retrieved 2025-01-15.
  29. ↑ "Hardy Hills Solar Farm". Williams Creek Management. Retrieved 2025-01-16.
  30. ↑ "Honeysuckle Solar comes online" (Press release). Lightsource bp. October 17, 2024. Retrieved 2024-10-18.
  31. ↑ Semmler, Ed (March 14, 2023). "Pushing through cold: Work is ramping up at Honeysuckle Solar Farm near New Carlisle". South Bend Tribune. Retrieved 2024-10-18.
  32. 1 2 DeVore, Molly (December 24, 2022). "Largest solar farm in the country moves forward in northern Indiana". The Times of Northwest Indiana. Retrieved 2023-03-14.
  33. 1 2 Mills, Wes (November 3, 2022). "Mammoth Solar enters next phase of $1.5B project". INside Indiana Business. Retrieved 2023-03-14.
  34. ↑ "MAMMOTH NORTH SOLAR". Doral LLC. Retrieved 2024-07-11.
  35. ↑ "MAMMOTH SOUTH SOLAR". Doral LLC. Retrieved 2025-05-26.
  36. ↑ "Form EIA-860 detailed data with previous form data". US Energy Information Administration. September 5, 2020. Archived from the original on July 1, 2022. Retrieved July 21, 2022.
  37. ↑ "Edp Renewables Sells Stake In 200 Mw Solar Project To Connor Clark & Lunn". Pv Magazine Usa. January 3, 2022. Archived from the original on January 30, 2022. Retrieved February 14, 2022.
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