Here is an "Information Brief" written for the MN House of Representatives regarding the impacts of RES.

Included in the discussino:
Many states have established goals for the generation of electricity from renewable fuels—wind, solar, biomass, and other sources. This information brief lists, by state:
• which utilities are subject to renewable standards;
• the renewable energy technologies that can be used;
• the numerical targets for renewable energy sales; and
• miscellaneous issues in various state laws.

Full document available here:
http://www.house.leg.state.mn.us/hrd/pubs/stateres.pdf