Mezue ahịrịokwu na-esonụ: Ndị injinia eletrik na-eji akụkọ SER eme ihe iji nyochaa nnukwu na obere ọkụ eletrik. Mgbe ndị
Northeast blackout nke 2003, ụlọ ọrụ North American Electric Reliability Corporation (NERC) kwuru na a ga-eji akara elekere elekere elekere elekere elekere elekere elekere elekere elekere elekere elekere elekere elekere elekere elekere elekere.