Interconnection queue in the USA (2015 requests) — page 2

Before a new power plant or battery can connect to the US grid, it joins a queue for studies and an interconnection agreement. Most requests never get built. This shows every request: active, built and withdrawn.

Requests shown7315.8 GW

Active in queue15.8 GW73 requests

Agreement signed8,536 MW38 requests

Withdrawn80095.6 GW never built

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Project, developer, substation or county State Grid region Technology Status Year joined Sort

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Source: Lawrence Berkeley National Laboratory, Queued Up interconnection queue data (data through end of 2025). Map points are county centres, not exact sites.

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In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

73 requests · page 2 of 2

Project	Capacity	Status	Location	Region	Queued	Online
Gas project J514, Marshall County Gas	65.0 MW	Agreement signed	Marshall, IA	MISO	Nov 2015	target 2017
Solar project BHCT G19, Pueblo County Solar	60.0 MW	In study	Pueblo, CO	West	Apr 2015	target 2019
Solar + storage project 642, Iron County Solar + storage · Parowan Solar, LLC	58.0 MW	In study	Iron, UT	West	Feb 2015	target 2024
Chatee Solar Solar · Hecate Energy	57.0 MW	Paused / redesign	Pecos, TX	ERCOT	Apr 2015	target 2020
Battery storage project Q229, Maricopa County Battery storage	50.0 MW	In study	Maricopa, AZ	West	Sep 2015	target 2021
Solar project J504, Linn County Solar	50.0 MW	Agreement signed	Linn, IA	MISO	Nov 2015	2024
Solar project J523, Mower County Solar	50.0 MW	Agreement signed	Mower, MN	MISO	Nov 2015	2024
Gas project J485, Olmsted County Gas	46.9 MW	Agreement signed	Olmsted, MN	MISO	Oct 2015	2018
Solar project 39, Orangeburg County Solar	42.0 MW	Under construction	Orangeburg, SC	Southeast	Jun 2015	target 2016
Little Bear 3 Solar + storage	40.4 MW	Agreement signed	Fresno, CA	CAISO	Apr 2015	2020
Mountaineer #1 Coal	36.0 MW	Agreement signed	WV	PJM	Oct 2015	2018
Hecate Solar Solar · Hecate Energy	33.0 MW	Paused / redesign	Brewster, TX	ERCOT	Mar 2015	target 2020
Battery storage project J466, Huron County Battery storage	30.0 MW	Agreement signed	Huron, MI	MISO	May 2015	target 2015
Geothermal project IA-PNM-2015-01, Do√±a Ana Cty County Geothermal · ORNI 24	29.0 MW	Agreement signed	Do√±a Ana Cty, NM	West	Jul 2015	target 2021
Solar project G0516, Sherman County Solar	20.0 MW	In study	Sherman, OR	West	Oct 2015	target 2016
Other project G0505, Lincoln County Other	20.0 MW	In study	Lincoln, OR	West	Jan 2015	target 2017
Solar project G0513, Morrow County Solar	20.0 MW	In study	Morrow, OR	West	Sep 2015	target 2016
Mirage Gas	11.0 MW	Paused / redesign	Harris, TX	ERCOT	Feb 2015
Lake Alpaugh Battery Storage Battery storage	10.0 MW	Agreement signed	Tulare, CA	CAISO	Apr 2015	target 2026
Altamont Midway LTD Onshore wind	5.0 MW	Agreement signed	Alameda, CA	CAISO	Apr 2015	target 2027
Cedar Lane Solar Solar	4.0 MW	Agreement signed	Queen Anne's, MD	PJM	Oct 2015	target 2026
Solar project 11 Solar	2.0 MW	Agreement signed	FL	Southeast	Aug 2015	target 2016
NEA Bell. Uprate (Northeast Energy Associates, LP) Gas	1.4 MW	Agreement signed	Norfolk, MA	ISO-NE	Mar 2015	target 2018

Capacity in the queue by state

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By grid region

ISO/RTO markets and the non-ISO West and Southeast.

Requests by year joined

Capacity of requests in this view, by the year they entered the queue. Click a year.

20102025

Source: Rand, J. et al., Queued Up, Lawrence Berkeley National Laboratory, data through end of 2025. Compiled from the queues of the 7 ISO/RTOs and dozens of non-ISO utilities. A request is a proposal to connect, not a commitment to build: historically most are withdrawn. Capacity is the requested interconnection size; hybrids include the storage component. Transmission lines · Planned power plants (EIA)