Huaneng Zhongtian Energy Conservation Technology Group Co., Ltd bụ ntọala mmepụta maka ajị anụ na roba na ugwu China.Tọrọ ntọala na 1985, ọ nọ na-enyocha ihe nchekwa ike na ihe mkpuchi maka ụlọ maka afọ 35.Otu a na-ekpuchi mpaghara 420 acres, na-ewe ihe karịrị otu puku mmadụ, ma soro na nhazi na ngbanwe nke ụkpụrụ mba ọtụtụ ugboro, na-enweta ihe fọrọ nke nta ka ọ bụrụ otu narị asambodo patent.