Americans for a Clean Energy Grid released a report May 22 finding that adding more wind power to the Midwest Independent Transmission System Operator grid could reduce wholesale electricity costs by more than 25 percent in the region by 2020 by replacing fossil fuel generation. The report, The Potential Rate Effects of Wind Energy and Transmission in the Midwest ISO Region, concluded that adding 20 GW of wind power would result in a $14 per MWh market price reduction and a 40 GW addition would lead to an average energy price decrease of more than $21 per MWh.