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Interconnection queue data

Interconnection queue statistics: completion, withdrawal and time to build

Most capacity that enters a U.S. interconnection queue never reaches operation. These tables show how that differs by region, resource type and request year, from Berkeley Lab's Queued Up: 2026 Edition.

GridVision AI ResearchPublished Updated

Headline figures

of capacity requested in 2000–2020 had reached commercial operation by the end of 2025
13.1%
of capacity requested in 2000–2020 had reached commercial operation by the end of 2025
of that capacity had withdrawn
75.1%
of that capacity had withdrawn
median time from request to commercial operation for projects that came online in 2025, up from 1.5 years in 2005
5.1 years
median time from request to commercial operation for projects that came online in 2025, up from 1.5 years in 2005

Requests filed 2000–2020, status at the end of 2025; all seven ISO/RTOs and the non-ISO balancing areas Berkeley Lab reports with complete status data.

Completion and withdrawal by region

Requests filed from 2000 to 2020, sorted by the share of requested capacity that reached commercial operation. In every region the share by capacity is lower than the share by number of requests, which means the requests that reached operation were smaller on average than those that did not.

  • Reached commercial operation
  • Withdrew
  • Still in queue (active or suspended)
RegionRequestsCapacity reached operationCapacity withdrewRequests reached operationOutcome by capacity
ERCOT1,55324.3%57.2%29.6%
ISO-NE82717.6%76.5%26.8%
MISO2,80614.0%75.1%18.1%
SPP1,68213.8%75.5%16.5%
PJM5,58913.3%77.8%20.5%
NYISO1,03512.0%81.3%19.4%
Southeast (non-ISO)2,01311.5%82.7%16.3%
West (non-ISO)4,5129.9%74.2%18.2%
CAISO1,9108.2%76.4%12.1%

Market guides: PJM · CAISO · SPP · MISO · NYISO · ISO-NE

Completion and withdrawal by resource type

Requests filed from 2000 to 2020. A larger share of battery and solar-plus-battery capacity from these years is still in the queue than of gas or wind capacity.

Resource typeRequestsCapacity reached operationCapacity withdrewRequests reached operationOutcome by capacity
Hydro42328.6%63.4%46.6%
Nuclear16318.3%77.1%57.7%
Gas2,65217.0%79.6%30.7%
Wind5,28215.5%77.0%20.3%
Solar8,44810.9%70.1%13.6%
Solar + battery1,2219.0%53.3%8.4%
Battery1,4246.9%64.1%9.1%
Geothermal1146.8%87.1%13.2%

Outcomes by the year a request was filed

Share of requested capacity by status at the end of 2025. Recent years are not settled: requests still in the queue may yet be built or withdraw.

  • Reached commercial operation
  • Withdrew
  • Still in queue (active or suspended)
  1. 2000127,610 MW
  2. 2001167,088 MW
  3. 200259,975 MW
  4. 200358,938 MW
  5. 200456,668 MW
  6. 200589,921 MW
  7. 2006158,194 MW
  8. 2007270,194 MW
  9. 2008253,690 MW
  10. 2009107,325 MW
  11. 2010117,217 MW
  12. 2011124,046 MW
  13. 201289,585 MW
  14. 201383,639 MW
  15. 2014125,636 MW
  16. 2015147,461 MW
  17. 2016204,643 MW
  18. 2017228,847 MW
  19. 2018302,101 MW
  20. 2019358,065 MW
  21. 2020369,811 MW
  22. 2021558,278 MW
  23. 2022658,498 MW
  24. 2023836,443 MW
  25. 2024516,397 MW
  26. 2025539,784 MW
Show as a table
Request yearRequestsCapacity (MW)Reached operationWithdrewStill in queue
2000304127,61012.3%87.6%0.1%
2001528167,0889.0%90.5%0.6%
200227659,97517.2%82.8%0.0%
200332158,93823.0%76.5%0.5%
200430656,66824.5%75.1%0.4%
200551589,92126.2%72.4%1.4%
2006747158,19415.4%83.3%1.4%
20071,112270,19412.8%84.8%2.3%
20081,193253,6906.8%92.2%1.0%
2009839107,32512.8%83.5%3.7%
20101,244117,21713.5%84.5%2.0%
2011989124,04611.6%85.6%2.8%
201258489,58520.0%78.0%2.0%
201367983,63930.4%66.0%3.7%
2014929125,63624.7%69.5%5.8%
20151,140147,46125.2%64.3%10.4%
20161,622204,64317.9%70.4%11.7%
20171,803228,84713.7%64.6%21.7%
20181,984302,1018.3%69.9%21.8%
20192,299358,0657.7%62.3%30.0%
20202,513369,8114.2%64.9%30.8%
20213,065558,2781.9%58.5%39.6%
20223,332658,4980.5%55.6%43.9%
20233,315836,4431.2%64.3%34.5%
20242,535516,3970.0%48.0%52.0%
20252,290539,7840.2%18.0%81.9%

How long it takes to reach commercial operation

Median years from interconnection request to commercial operation, by the year projects came online. The line marks the middle half of projects (25th to 75th percentile).

  1. 20051.5 yrs
  2. 20061.9 yrs
  3. 20072.1 yrs
  4. 20081.8 yrs
  5. 20092.6 yrs
  6. 20102.8 yrs
  7. 20112.9 yrs
  8. 20122.6 yrs
  9. 20133 yrs
  10. 20143.8 yrs
  11. 20153.2 yrs
  12. 20163.7 yrs
  13. 20173.3 yrs
  14. 20183.5 yrs
  15. 20193.9 yrs
  16. 20203.8 yrs
  17. 20214.2 yrs
  18. 20224.6 yrs
  19. 20234.6 yrs
  20. 20245.2 yrs
  21. 20255.1 yrs
Show as a table
Online yearProjects25th percentileMedian75th percentile
2005630.8 years1.5 years3.5 years
2006761.2 years1.9 years3.5 years
2007961.2 years2.1 years3.4 years
20081140.9 years1.8 years2.9 years
2009971.6 years2.6 years4 years
20101072.4 years2.8 years4.2 years
20111221.6 years2.9 years4.3 years
20121411.8 years2.6 years4.8 years
20131021.7 years3 years5 years
20141082 years3.8 years5.3 years
20151642 years3.2 years5.2 years
20161802 years3.7 years5.7 years
20171382.2 years3.3 years5.2 years
20181522.2 years3.5 years5.1 years
20191532.5 years3.9 years5.1 years
20202272.8 years3.8 years4.7 years
20212002.8 years4.2 years5.1 years
20221763.1 years4.6 years5.9 years
20232653.4 years4.6 years6.1 years
20243353.6 years5.2 years6.7 years
20252943.5 years5.1 years7.2 years

What the averages hide

Outcomes at individual points of interconnection range from every request built to every request withdrawn. The public-record retrospectives read the same dataset one node at a time, and the guide to staying in the queue or withdrawing sets out what to check before the next commitment.

Data, method and how to cite

Figures are Berkeley Lab's own tables from the Queued Up: 2026 Edition data file (interconnection requests through the end of 2025), republished under CC BY 4.0. Shares are calculated over every status the tables report, including suspended requests. Completion and withdrawal tables cover the seven ISO/RTOs and the non-ISO balancing areas with complete status data; durations cover projects that came online from 2005.

Cite as: GridVision AI, “Interconnection Queue Statistics,” https://gridvisionai.com/interconnection-queue/statistics, based on Lawrence Berkeley National Laboratory, Queued Up: 2026 Edition.

Source: Lawrence Berkeley National Laboratory, Queued Up: 2026 Edition. Data checked September 17, 2026.