A simple, low cost approach to uprating existing steam plants is presented. The proposed uprating eliminates or reduces much of the boiler and turbine work required by conventional uprating methods. Waste heat from a gas turbine’s exhaust can be transferred into the steam cycle of an existing plant creating a combined-cycle unit with greater output than the combined capabilities of the two independent units and improved overall efficiency. When using or relocating an existing gas turbine the cost of the additional midrange capacity (steam plant uprate plus gas turbine) will be far less than the cost of new fossil capacity. The additional capacity is gained without creating a new emissions source.