A private utility, NYSEG supplies gas and electricity to large areas of New York State, including northeastern Westchester County. For natural gas emergencies, call (800) 572-1121 or 911. For electricity emergencies, call (800) 572-1131 or 911. General customer service is available during business hours at (800) 600-2275, and 24-hour automated support can be reached at (800) 600-2275.