东方电机能够设计制造覆盖从50m到850m水头、容量从10MW到450MW等级的抽水蓄能机组产品，累计获得了60台套抽水蓄能机组的供货合同。其中，长龙山抽水蓄能机组是水头世界第二、中国第一高的抽水蓄能机组。

DF EM supplies pumped- storage hydro units covering head of 50m- 850m and single unit capacity of 10MW- 450MW. DF EM has got the supply contracts of 60 sets of Pumped- storage type units in total. Especially, those 4 units for the Changlongshan HPP have the world's second highest and China's highest water head level.