[RenewableEnergyAccess.com] Midwest utility Alliant Energy has issued a request for proposals because the utility plans to add up to 100 MW of wind generation to its renewable resource portfolio by the end of 2005. That would bring the company’s total wind energy portfolio to 546 MW and its total renewable capacity to nearly 660 MW. Proposals should come from generation facilities in either Iowa or Minnesota, and should be within the service area of Interstate Power and Light. Bidders should be able to offer between 20 and 100 MW for a minimum period of 15 years, and Alliant stated it prefers proposals for power purchase agreements. The deadline to submit bids is February 4, 2005. Alliant Energy is working to add a total of 230 MW wind generation to its renewable portfolio by 2010.