Solar power in Tennessee

Solar power in Tennessee is capable of producing much of the state's electricity; however, the industry remains in early stages in the state. With 129 MW of solar power in 2015, Tennessee ranked 20th among states for installed solar capacity.[2]

1 MW Shelby Farms Solar Farm[1]
Simplified schematic of a grid-connected residential photovoltaics power system

The largest solar installations in Tennessee are the 20 MW Selmer and 20 MW Mulberry Solar Farms in McNairy County, both built in 2014.[2] In 2013, Volkswagen opened an 8 MW solar farm at its assembly plant in Chattanooga.[3] In 2012, Tennessee's largest solar installation was the 5 MW West Tennessee Solar Farm.[4]

A 68.5 MW(DC) (53 MW(AC)) solar farm is under construction near Millington with expected completion in 2017.[5]

Rooftop solar

Photovoltaic panels installed on rooftops is estimated to be capable of producing 23% of all electricity used in Tennessee,[6] with 16,000 MW of solar panels.[7]

Federal law requires net metering upon request, but Tennessee is one of only four states without established policy, meaning that it needs to be negotiated with the utility. A more practical approach is to assume net metering by each utility. Net metering is simply an accounting procedure, and the only requirement is a bi-directional electric meter. Most meters are bi-directional. It is more practical for utilities to discover net metering instead of requiring registration and reporting, just as there is no registration or reporting requirement in connecting an air conditioner, which is instead discovered by utilities. Best practices call for perpetual roll over of kilowatt credits instead of converting to a monetary value.[8]

A 2012 estimate suggests that a typical 5 kW system will pay for itself in about 14 years, and thereafter generate a net savings of $16,622 over the 25 year life of the system.[9]

Statistics
Source: NREL[10]
Tennessee Photovoltaics Capacity (MWp)[11][12][13][14][15][16][17]
Year Capacity Installed % Change
20070.400%
20080.400%
20090.90.5125%
20105.74.8533%
201122.016.3286%
201245.023.0105%
201364.819.844%
201411045.270%
20151291917%
20161633426%
20172306741%
20182623214%
2019350.888.834%
2020356.15.31.5%
Utility-scale solar generation in Tennessee (GWh)[18]
Year Total Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
201321111222222222
201426112222222244
201579457888887655
201678365687988765
20179145881010998965
201816697141617171918161599
2019327111227333936373636232215
2020325151721333839383328252117
20212451717273638373736

See also

References
  1. Agricenter turning sunshine into electricity
  2. Tennessee fact sheet, SEIA, accessed June 4, 2016
  3. Volkswagen powers up 33-acre solar park in Tenn., Erik Schelzig, Associated Press, USA Today, January 23, 2013
  4. West Tennessee Solar Farm
  5. State’s largest solar array planned for Millington, Tom Charlier, The Commercial Appeal, April 19, 2016
  6. Report Argues for a Decentralized System of Renewable Power Generation
  7. U.S. Renewable Energy Technical Potentials pg. 12
  8. Best Practices in Net Metering
  9. Tennessee
  10. "PV Watts". NREL. Retrieved 21 June 2012.
  11. Sherwood, Larry (June 2011). "U.S. Solar Market Trends 2010" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2011-06-29.
  12. Sherwood, Larry (July 2010). "U.S. Solar Market Trends 2009" (PDF). Interstate Renewable Energy Council (IREC). Archived from the original (PDF) on 2010-09-25. Retrieved 2010-07-28.
  13. Sherwood, Larry (July 2009). "U.S. Solar Market Trends 2008" (PDF). Interstate Renewable Energy Council (IREC). Archived from the original (PDF) on 2009-11-23. Retrieved 2010-07-24.
  14. 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.
  15. Sherwood, Larry (July 2012). "U.S. Solar Market Trends 2012" (PDF). Interstate Renewable Energy Council (IREC). p. 16. Retrieved 2013-10-11.
  16. Sherwood, Larry (July 2014). "U.S. Solar Market Trends 2013" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2014-09-26.
  17. "Tennessee Solar". Solar Energy Industries Association (SEIA). Retrieved 2020-05-06.
  18. "Electricity Data Browser". U.S. Department of Energy. March 28, 2018. Retrieved October 11, 2021.
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