Customers could save $6.9 billion annually through 2026 if the PJM Interconnection more than doubled its current target of wind power build-out, according to a study by Americans for a Clean Energy Grid and Synapse Energy Economics. Most of the savings would come from the displacement of fossil fuel-fed plants, which, unlike wind farms, need to buy their fuel, said Bob Fagan, an economist at Synapse Energy Economics. Moreover, the study shows that "wind could actually create a more reliable system for PJM," said Joe Kelliher, an executive vice president at NextEra Energy.

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