[RenewableEnergyAccess.com] When the voting population of Columbia, Missouri approved a power generation plan for methane recovery, Columbia Water and Light set to the task immediately. A block of electricity generated by methane recovery at the Milam Landfill in Illinois started flowing through the system on February 1, as a result of a renewable portfolio standard passed in November of 2004. The utility is required to generate or purchase 2 percent of its power supply from renewable energy sources by 2007, 5 percent by 2012, and up to 15 percent by 2020. A contract between Columbia Water and Light, and the Missouri Public Utilities Alliance allows the utility to purchase up to 3 MW of continual power between February and September of 2005. This represents about 1 percent of total energy sales for Columbia, and the cost of the electricity is estimated at $662,000.