N'ọnọdụ kachasị njọ, nke a nwere ike iduga n'ọtụtụ usoro nkwụsị na nnukwu mpaghara blackout.
N'ezie, ụdị okwu dị mgbagwoju anya nke ahịrịokwu ahụ bụ "N'ọnọdụ kachasị njọ, nke a nwere ike iduga n'ọtụtụ usoro nkwụsị na nnukwu mpaghara mpaghara, dị ka nke mere na US Northeast blackouts nke 1965, 1977, 2003, na nnukwu blackouts na mpaghara ndị ọzọ nke US na 1996 na 2011. "