Solar power in Wisconsin

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Solar powered road sign
Solar powered road sign

Solar power in Wisconsin on rooftops is estimated to be able to provide 22% of the electricity used in Wisconsin.[1] Net metering is available for systems up to at least 20 kW, and excess generation is credited at retail rate to customers next bill. Some utilities allow net metering up to 100 kW. For Xcel customers kilowatt credits are rolled over monthly and are reconciled annually at avoided cost.[2] Best practices recommend no limits, either individually or aggregate, and perpetual roll over of kilowatt credits.[3]

A 2012 estimate indicates that a typical 5 kW solar array installed in Wisconsin will pay for itself in 15 years and go on to provide an additional profit of $20,238 during its 25 year life.[4] Wisconsin's renewable portfolio standard requires 10% renewable sources for electricity by 2015.[5]

In 2007, Wisconsin's largest solar array was the 44.4 kW array on the Urban Ecology Center, in Milwaukee.[6]

In 2011, the largest array was the 360 kW parking lot array in Verona,[7] which is being expanded to 2.2 MW. A 3.177 MW array is planned for a distribution center in Oconomowoc.[8]

See also[edit]


  1. ^ Report Argues for a Decentralized System of Renewable Power Generation
  2. ^ Net Metering
  3. ^ Net Metering Model Rules
  4. ^ Wisconsin Solar Power Rebates, Tax Credits, and Incentives
  5. ^ Renewable Portfolio Standard
  6. ^ Largest Wisconsin Solar Array to be Dedicated February 10
  7. ^ Epic fires up solar array
  8. ^ Green Grocer Update
  9. ^ Sherwood, Larry (August 2012). "U.S. Solar Market Trends 2011". Interstate Renewable Energy Council (IREC). p. 17. Retrieved 2012-08-16. 
  10. ^ Sherwood, Larry (June 2011). "U.S. Solar Market Trends 2010". Interstate Renewable Energy Council (IREC). Retrieved 2011-06-29. 
  11. ^ Sherwood, Larry (July 2010). "U.S. Solar Market Trends 2009". Interstate Renewable Energy Council (IREC). Retrieved 2010-07-28. 
  12. ^ Sherwood, Larry (July 2009). "U.S. Solar Market Trends 2008". Interstate Renewable Energy Council (IREC). Retrieved 2010-07-24. 
  13. ^ Sherwood, Larry (July 2014). "U.S. Solar Market Trends 2013". Interstate Renewable Energy Council (IREC). Retrieved 2014-09-26. 
  14. ^ "PV Watts". NREL. Retrieved 24 July 2012. 

External links[edit]