The East China Power Experimental Research Institute, which has the national first-level professional qualification, China Datang Group Science and Technology Research Institute Co., Ltd., compared with the actual operating parameters before the unit renovation, the steam consumption value of the pure condensation operating conditions was 5.01kg/kw.h, and the steam consumption value of the pure condensation operating conditions after the transformation was 4.43kg/kw.h. Under the same operating conditions, the steam consumption value decreased by 0.58kg/kw.h, and the decline was 11.58%, which was far exceeding the contract's 10%. Both the energy-saving and social benefits were very significant.