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Berkeley Lab counts 2,061 GW still waiting for a grid connection, a tenth less than a year ago, but the pool shrank because developers abandoned the line faster than new ones joined it, and the arrivals were mostly gas.
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Run the decline backwards. A pool 10 percent larger in 2024 stood near 2,290 GW, so the net reduction was about 229 GW [1] against the 750-plus GW that walked away [5], which leaves roughly 520 GW of fresh requests arriving behind the departures [2]; that residual also absorbs whatever actually energised, and by Lawrence Berkeley National Laboratory's own history that is the smallest term in the sum [10]. The pool now sits about 21 percent below the end-2023 peak, a drop of some 539 GW [3]. The line got shorter because developers left it.
Gas did most of the arriving. An 86 percent increase implies a base near 136 GW, so roughly 117 GW of gas requests entered in a single year [4], while solar shed about 181 GW and storage about 143 GW [5]. Newness has a price in a queue: 18 percent of gas capacity holds a draft or executed interconnection agreement, some 46 GW [6], against 32 percent of solar and 33 percent of wind [8]. The capacity added fastest is the capacity furthest from a signed contract.
Anything underwritable sits inside the 536 GW that already has a draft or executed agreement [8], and applying the lab's post-agreement attrition takes that to roughly 322 GW [7]. Push the 2000-2020 conversion rate across the whole active pool and the implied eventual build is about 268 GW [8]. LBNL's data covers about 98 percent of installed US generation, compiled with Interconnection.fyi across seven RTOs and 50 further balancing areas, so this is the national picture rather than a regional slice [13]. A queue position, the lab is careful to say, still needs landowner agreements, permits, a power purchaser, equipment suppliers and financiers [14].
The reform reading has evidence behind it: record agreement volumes in four markets [9], and FERC's 2023 order in force across most regions since the following year [4]. LBNL itself goes no further than saying the reforms and market conditions "may have played a role" in the exits [5], which is the defensible position, because in queue data a developer who quit over process cost and a developer who quit because the offtake never appeared produce the same minus sign. What the numbers support is a less speculative queue rather than capital moving from waitlist into construction, and the lab's caution that most requests are never built [12] applies to the smaller pool as much as it did to the peak [3].
Two lines in next year's edition settle it. Post-agreement withdrawal below 40 percent, with gas's agreement share climbing off 18 percent, would mean throughput genuinely improved; another year of heavy exits against a flat agreement-backed pool would mean the queue is simply clearing out.
Ranked by verification strength, evidence, and original report placement.
Lawrence Berkeley National Laboratory reported on July 1 that US generator interconnection queues show some signs of improvement as historical backlogs wane and the volume of newly executed interconnection agreements rises, though process timelines remain long.
The volume of new generation and storage seeking transmission connection decreased 10% from 2024 to 2025, with 2,061 GW of capacity now actively seeking grid interconnection.
The backlog of generator interconnection requests peaked at nearly 2,600 GW active at the end of 2023.
FERC adopted major interconnection reforms in 2023 that took effect the following year in most regions, and several grid operators implemented additional process reforms.
LBNL said the reforms, alongside market conditions, may have played a role in the more than 750 GW of requests withdrawn in 2025.
Active queue capacity is highest in the non-ISO West at 567 GW, followed by ERCOT at 408 GW, and capacity fell in 2025 in all regions except ERCOT and SPP.
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One lab's dataset, near-total coverage
Every figure in this story comes from the same place: Berkeley Lab's queue compilation with Interconnection.fyi, spanning seven organised markets and 50 balancing areas that together account for about 98% of installed US generation. The methodology and its limits are published alongside the numbers, and the totals reconcile internally. What the record lacks is a second reader. The 750 GW of withdrawals arrives with no regional or technology breakdown, and no other outlet in our coverage has checked any of the counts.
Agreements signed, plants still scarce
The measurable movement is in paperwork. Four markets signed record agreement capacity in 2025, two of them above 30 GW, and 536 GW of the active pool now holds a draft or executed agreement. Set against that, only 13% of 2000-2020 request capacity was online by the end of 2025, more than 40% of projects walk after signing, and the fast-track programmes at MISO, SPP and PJM are new enough that this reporting has no completions to show from them.
Easing framed more kindly than the data
'Eased somewhat' is the American Public Power Association's phrase, and it does gentle work. The pool got smaller because more than 750 GW left it, not because that capacity was connected, and Berkeley Lab says outright that it is too early to attribute the change to FERC's Order 2023. The caveats are all in the piece, which keeps the gap small, but the framing still reads the exit of three-quarters of a terawatt as progress and leaves the reader to net the withdrawals against the fresh entries.
DOE-funded lab, utility trade relay
The work is funded by the Energy Department's Integrated Energy Systems Office through the i2X programme, disclosed at the foot of the piece, and i2X exists to make interconnection faster. A programme reporting on the problem it was created to fix has an obvious direction of travel. The relay runs through the American Public Power Association, whose member utilities sit on the transmission-provider side of these agreements. Neither position undermines the capacity counts; both explain why 'signs of improvement' is the sentence that survives to the headline.
Solid counts, thin interpretation
The capacity arithmetic is firm: named dataset, stated coverage, figures that hold up when netted against each other. The interpretation is thinner, because it rests entirely on Berkeley Lab's hedges and one trade publication's reading of them. The 86% rise in gas is the number most likely to be revisited, since nothing in this reporting explains what is driving 117 GW of new gas requests in twelve months.
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