Policy & regulation

Transmission

Why won’t PJM let batteries and clean power bolster a stressed-out grid?

The country’s biggest grid operator is preventing developers from adding batteries to existing projects that have extra grid space, in defiance of a federal mandate.

By Jeff St. John  . 

EDP Renewables’ Meadow Lake I wind farm in Illinois.
EDP Renewables’ Meadow Lake I wind farm in Illinois. Grid operator PJM denied a plan from the developer to add solar to the project to boost its energy output. (EDP Renewables)

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