I-nitrogen oxide kugesi ephumayo yesethi yejeneretha yenjini yasolwandle iyigesi eyakhiwe ukucwiliswa kwe-nitrogen kusilinda ezingeni lokushisa eliphezulu, elakhiwe ikakhulukazi i-nitric oxide ne-nitrogen dioxide.Ukuvikelwa kwemvelo kweGreen Valley kusungule isethi yesistimu yokukhishwa kwe-"grvnes" ye-SCR yokwelapha ama-nitrogen oxides egesini elilahlwa amajeneretha asolwandle ngemva kweminyaka eminingi yocwaningo olunzima.Ngemuva kokuklama okukhethekile, uhlelo lusakwazi ukubona ukusebenza kahle okuphezulu ngaphansi kwesimo sokushisa okungazinzile kokukhipha kanye nekhwalithi yegesi;Izingxenye ezibalulekile zingamelana nokungcola okuvamile kwegesi yokulahla imfucumfucu futhi ziqinisekise ukusebenza okuzinzile kwesikhathi eside kwesistimu.