The equipments and systems and the main operation economic indices of four ultra supercritical 1000 MW units in Ninghai and Suizhong Power Plants of Shenhua Guohua Electric Power Company were analyzed to investigate the major factors affecting the unit operation economy and calculate the influence quality.Thus

the corresponding energy saving measures were put forward

and the expecting effects were quantatively calculated.For the No.3 and No.4 units in Ninghai Power Plant

the coal consumption for power generation can both be reduced by 4.0 g/(kW·h);the auxiliary power consumption rate can both be dropped by 0.47%;the converted coal consumption for power supply can both be decreased by 5.6 g/(kW·h).For the No.3 and No.4 units in Suizhong Power Plant

the coal consumption for power generation can be reduced by 2.8 g/(kW·h) and 2.6 g/(kW·h)

respectively;the auxiliary power consumption rate can be dropped by 0.56% and 0.55%;the converted coal consumption for power supply can both be decreased by 4.8 g/(kW·h).