In 2006, renewable energy equirements were increased for Wisconsin utilities. The mandate for renewable energy is no less than 6 percent by 2010, and 10 percent by 2015 of total retail energy delivered on a statewide basis (source).
President Obama stressed the need to expand solar and wind power during his inaugural address- one of the things I really like about him (and Jimmy Carter, but that is a discussion for another day). The Obama administration supports a national mandate for 10% of the country's electricity to come from renewable power by 2012 and 25% by 2025 (source).
To this end, some people have wondered whether the Estabrook Dam can be used for hydroelectric power. Here is a video showing how strong the flow can be on the Milwaukee River- taken approximately March 8th, 2009.