PJM overcharged members by more than $25 million in reactive service charges last year and will begin providing refunds this month.

Fearing a potential shortage of reactive power, PJM last week won stakeholder support for an initiative to consider requiring that renewables add 'smart' inverters.

Members voted to expand the scope of the Energy Market Uplift Senior Task Force (aka the PJM EMUSTF) to incorporate reactive cost issues originally assigned to a separate panel.

The Markets and Reliability Committee Thursday approved changes to Manuals 11 and 14D, while the Members Committee approved changes to Manual 15.