As of October 25, 2024, the Federal Energy Regulatory Commission (FERC) issued a rule that bars payments to power plant owners for reactive power within the standard power factor range (deadband). [1] The reform is intended to ensure that transmission providers do not pass unjust charges onto customers that do not yield a commensurate benefit for ratepayers. The decision, opposed by generators, means that interconnection customers will only be paid for reactive power when the transmission provider asks the interconnection customer to operate its facility outside the “deadband” range. According to FERC, generating facilities must either produce or absorb reactive power for the transmission system to maintain the required voltage levels. Reactive power outside the range – within 0.95 leading to 0.95 lagging – is considered an ancillary service. Only PJM Interconnection, ISO New England, and the New York Independent System Operator pay generators for reactive power within their deadband ranges. Opponents of FERC’s proposal include the American Council on Renewable Energy, the Solar Energy Industries Association, the American Clean Power Association, the North American Generator Forum, and Public Service Enterprise Group companies, along with NYISO and ISO-NE. Supporters of the rule include PJM, ratepayer advocates in New England, and American Electric Power.
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