Electricity utility Wisconsin Power and Light, a subsidiary of Alliant Energy, has received approval from state regulators for the expansion of its Nelson Dewey generating station.

The Wisconsin Power and Light (WPL) stated that the plant’s circulating fluidized bed system will have the flexibility to not only utilize coal as a fuel source, but also renewable resource fuels, such as switchgrass, corn stalks and wood.

The plant is designed to generate 300MW of electricity, or enough to power 300,000 homes. WPL claims that the plant’s flexible fuels capability will allow Alliant Energy to help develop new agricultural and forestry supply markets in the state. WPL has selected Washington Group International to provide engineering, procurement and construction services for the proposed expansion.

Barbara Swan, president of WPL, said: This represents another step forward on the path to meeting the future energy needs of Wisconsin. It is also our opportunity to showcase our commitment to a greener future through new technology, renewable fuels and our significant investment in wind power.