US Battery Storage Projects Face Years-Long Grid Connection Delays
Falling costs have spurred a surge in grid-scale battery storage proposals across the US, but aging grid infrastructure and equipment shortages are causing massive backlogs. Roughly 750 gigawatts of storage capacity are now waiting for interconnection approval, with median wait times rising from about 1.5 years in 2015 to 5 years in 2025. Utilities like Con Edison and PG&E report project queues swelling by hundreds of percent, citing shortages of transformers, breakers and skilled labor.
GoKawiil's interpretation of the reporting above, not reported fact.
Battery storage is critical for balancing renewable energy and meeting rising electricity demand from data centers and electrification, so these delays could slow the broader clean energy transition. The bottleneck reveals how physical infrastructure and supply chains, not just financing or policy, are now the binding constraint on grid modernization.
- 750 GW of storage projects are stuck in US interconnection queues, equivalent to over 700 nuclear reactors' worth of capacity
- Median wait times for grid connection have more than tripled, from 1.5 years in 2015 to 5 years in 2025
- Equipment shortages, like breakers taking nearly four years to procure, are a key bottleneck alongside a shortage of skilled workers
EcoFlow DELTA 2 Portable Power Station — While utility-scale storage waits in interconnection queues, you can add your own battery buffer at home. The EcoFlow DELTA 2 is a LiFePO4 power station that stores energy for outages, can be recharged from wall power or solar panels, and runs fridges, routers and CPAP machines. It's a practical way to ride out grid hiccups while the big upgrades catch up.
See EcoFlow DELTA 2 Portable Power Station on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: hardware.slashdot.org — Posted, 2026-08-23
Published there as: “Supply Chain Issues Delaying US Grid Batteries' Installation”
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