PJM moves to speed battery connections on its congested grid

· Climate · United States

PJM Interconnection, the largest U.S. grid operator serving customers across 13 mid-Atlantic, Midwestern and Southern states, is taking steps that could let substantial new battery capacity connect without the long delays that have become standard. The operator's grid is described as heavily congested, particularly in some areas. The changes target the interconnection queue, a persistent bottleneck that has held back storage projects across U.S. power markets. If the approach works, it could unlock capacity that grid batteries need to supply, with implications for storage developers, utilities and reliability planners in the PJM footprint.

Why it matters：Interconnection queues are the main gatekeeper for storage growth in the U.S., so any credible fix at the largest grid operator sets a precedent for how fast batteries can scale elsewhere.

Key points

  • PJM serves 13 states across three regions and is the largest U.S. grid operator
  • The initiative targets the interconnection queue delays that have slowed battery projects

Sources (original reporting)

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