Alliant Energy customers Starts Receiving Clean Power From Wisconsin’s Largest Solar Facility Updated On Tue, Jul 19th, 2016 by Saurenergy Wisconsin’s largest solar facility is now delivering clean power to Alliant Energy customers. The 2.3-megawatt Rock River solar project recently went into service near Beloit, Wis. The solar facility includes over 7,700 solar panels, covers nearly 17 acres and produces enough electricity to power 500 homes. The Rock River solar project is located on Alliant […] Read more