The National Electrical Manufacturers Association (NEMA) announced that ANSI Accredited Standards Committee C12 revised ANSI C12.1-2014 Code for Electricity Metering. This standard establishes acceptable performance criteria for new types of alternating current (ac) watthour meters, demand meters, demand registers, pulse devices, and auxiliary devices. It describes acceptable in-service performance levels for meters and devices used in revenue metering.

“The changes incorporated into ANSI C12.1 better reflect current operational and equipment trends within the utility industry as a whole,” said Gordon Belcher of Eversource Energy, chair of the ANSI C12.1 Subcommittee on Electricity Metering. “The benefits of these changes will be realized not only by equipment manufacturers and utilities but also by utility customers through the addition of clear and concise testing requirements for solid-state metering equipment now seen on most homes around the country, as well as from efficiencies gained through industry best practices for in-service testing.”