Alliant Energy Corporation headquartered in Madison, Wisconsin serves more than 1.5 million gas and electric customers in the states of Iowa, Minnesota and Wisconsin [1, 2, 3]. The project started in early 2008 and is expected to complete by the end of 2010 for Wisconsin service area and 2013 for Iowa service area based on the company AMI deployment timeline . As of May 2010, the company has put 455,000 electric smart meters and 177 gas meters in Wisconsin and 526,000 electric meters and 234,000 gas meters in Minnesota and Iowa .
The utility is using Sensus direct Radio Frequency (RF) meters with the FlexNet AMI (Advanced Metering Infrastructure) Solution to handle gas and electric data [1, 2]. According to , the AMI system operates under an FCC license and uses a portion of the 900 MHz radio frequency band separate from that used commonly by consumer products such as cordless telephones and garage door openers. Because of this, the AMI system will not cause interference problems with other wireless devices.