FirstEnergy and American Electric Power earn substantial revenues beyond base distribution rates for electricity use.
North Carolina law allows the utility to hide which candidates benefited from its political spending.
Officials will gather written comments instead on the utility’s proposal to avoid technical glitches in the future.
Campaign donations from the company’s PAC match closely with last year’s vote on Senate Bill 559.
The North Carolina city aims to power municipal buildings with zero-carbon energy by 2030.