Pennsylvania Interconnection Projects
interXdata tracks 2,939 interconnection projects in Pennsylvania representing 273,463 MW of requested capacity. The dominant technology by capacity is Gas. The most active counties are Franklin, Somerset, Allegheny.
2,939Total projects
220Active
958Operational
1,732Withdrawn
273,463 MWRequested capacity
15,618 MWActive capacity
Technology mix
| Technology | Projects | Requested capacity |
|---|---|---|
| Gas | 851 | 160,005 MW |
| Other | 411 | 44,195 MW |
| Solar | 1,242 | 37,698 MW |
| Wind | 237 | 16,155 MW |
| Battery | 173 | 11,904 MW |
| Nuclear | 2 | 1,688 MW |
| Solar+Battery | 19 | 1,663 MW |
| Coal | 3 | 150 MW |
| Hydro | 1 | 5 MW |
Counties
| County | Projects | Requested capacity |
|---|---|---|
| Franklin | 153 | 2,475 MW |
| Somerset | 125 | 5,304 MW |
| Allegheny | 118 | 5,284 MW |
| York | 105 | 18,369 MW |
| Adams | 94 | 5,397 MW |
| Lancaster | 94 | 8,439 MW |
| Luzerne | 90 | 15,929 MW |
| Bradford | 90 | 4,273 MW |
| Clearfield | 84 | 8,949 MW |
| Berks | 79 | 7,074 MW |
| Schuylkill | 74 | 5,321 MW |
| Fayette | 70 | 4,299 MW |
| Centre | 66 | 2,031 MW |
| Armstrong | 65 | 8,152 MW |
| Mercer | 64 | 1,690 MW |
| Northampton | 62 | 11,513 MW |
| Philadelphia | 61 | 5,355 MW |
| Indiana | 58 | 14,870 MW |
| Cambria | 58 | 6,427 MW |
| Crawford | 56 | 2,366 MW |
| Montgomery | 53 | 4,777 MW |
| Erie | 52 | 3,111 MW |
| Bucks | 48 | 6,403 MW |
| Delaware | 45 | 7,245 MW |
| Beaver | 43 | 9,439 MW |
| Cumberland | 43 | 406 MW |
| Venango | 43 | 1,847 MW |
| Northumberland | 42 | 1,686 MW |
| Westmoreland | 42 | 5,391 MW |
| Dauphin | 41 | 8,713 MW |
| Columbia | 39 | 5,753 MW |
| Snyder | 39 | 5,333 MW |
| Bedford | 35 | 953 MW |
| Lebanon | 34 | 5,402 MW |
| Lackawanna | 33 | 6,019 MW |
| Lawrence | 33 | 5,451 MW |
| Washington | 33 | 3,378 MW |
| Potter | 32 | 1,411 MW |
| Wayne | 32 | 1,733 MW |
| Greene | 31 | 7,293 MW |
Largest projects
| Project | Queue ID | Technology | Capacity | Status | Location |
|---|---|---|---|---|---|
| Beaver Valley 345kV | R67 | Other | 2,510.0 MW | withdrawn | Beaver, Pennsylvania |
| PJM Queue Project AH1-675 — Gas in Columbia, Pennsylvania | AH1-675 | Gas | 2,175.0 MW | withdrawn | Columbia, Pennsylvania |
| Hatfield 500kV | AA1-070 | Other | 1,710.0 MW | withdrawn | Greene, Pennsylvania |
| PJM Queue Project AH1-674 — Gas in Beaver, Pennsylvania | AH1-674 | Gas | 1,700.0 MW | withdrawn | Beaver, Pennsylvania |
| Beaver Valley | N13 | Other | 1,630.0 MW | operational | Beaver, Pennsylvania |
| Taylorstown 500 kV | E17_W26 | Gas | 1,595.0 MW | withdrawn | Unknown, Pennsylvania |
| Peach Bottom | 3166_2 | Other | 1,499.4 MW | operational | York, Pennsylvania |
| Keystone-Conemaugh 500kV | AB1-003 | Gas | 1,474.0 MW | withdrawn | Indiana, Pennsylvania |
| PJM Queue Project AH1-689 — Gas in Columbia, Pennsylvania | AH1-689 | Gas | 1,450.0 MW | withdrawn | Columbia, Pennsylvania |
| PJM Queue Project AH1-688 — Gas in Columbia, Pennsylvania | AH1-688 | Gas | 1,450.0 MW | withdrawn | Columbia, Pennsylvania |
| Peach Bottom | 3166_3 | Other | 1,377.0 MW | operational | York, Pennsylvania |
| TMI 500 kV | A40 | Gas | 1,271.0 MW | withdrawn | Dauphin, Pennsylvania |
| Emilie 230kV | B30 | Gas | 1,268.0 MW | operational | Bucks, Pennsylvania |
| TalenEnergy Susquehanna | 6103_1 | Other | 1,266.0 MW | operational | Luzerne, Pennsylvania |
| TalenEnergy Susquehanna | 6103_2 | Other | 1,266.0 MW | operational | Luzerne, Pennsylvania |
| Brunner Island 230kV | G33 | Gas | 1,200.0 MW | withdrawn | York, Pennsylvania |
| White Oak 500 kV | F05_W38 | Gas | 1,200.0 MW | withdrawn | Unknown, Pennsylvania |
| Cabot-Keystone 500kV | AC2-118 | Gas | 1,200.0 MW | withdrawn | Armstrong, Pennsylvania |
| Croydon-Emilie | S105 | Gas | 1,200.0 MW | withdrawn | Bucks, Pennsylvania |
| Hatfield 500kV | AC2-025 | Gas | 1,140.0 MW | withdrawn | Greene, Pennsylvania |
| Hatfield 500kV | AC1-097 | Gas | 1,140.0 MW | withdrawn | Greene, Pennsylvania |
| Limerick | 6105_2 | Other | 1,138.5 MW | operational | Montgomery, Pennsylvania |
| Limerick | 6105_1 | Other | 1,138.5 MW | operational | Montgomery, Pennsylvania |
| Rock Springs-Peach Bottom 500kV | AA2-109 | Gas | 1,100.0 MW | withdrawn | Lancaster, Pennsylvania |
| Rhodes Lane 500kV | Y2-080 | Gas | 1,065.0 MW | withdrawn | Westmoreland, Pennsylvania |
| Hunterstown 500kV | AB1-153 | Gas | 1,061.5 MW | withdrawn | Adams, Pennsylvania |
| TMI-Peach Bottom 500kV | H14 | Gas | 1,060.0 MW | withdrawn | York, Pennsylvania |
| Susquehanna-Lackawanna 500kV | Z2-046 | Gas | 1,050.0 MW | operational | Luzerne, Pennsylvania |
| Hunterstown-Conemaugh 500kV | AA1-076 | Gas | 1,050.0 MW | operational | Cambria, Pennsylvania |
| Sunbury #2 500kV | AA2-182 | Gas | 1,030.0 MW | withdrawn | Snyder, Pennsylvania |
Top developers in Pennsylvania
| Developer (canonical) | Projects | Capacity |
|---|---|---|
| McKean County Solar, LLC | 15 | 760 MW |
| RWE Solar Development, LLC | 12 | 2,767 MW |
| Black Cherry Wind Power | 6 | 1,900 MW |
| Franklin Energy, LLC | 6 | 142 MW |
| North Corners Energy, LLC | 5 | 297 MW |
| Morrisdale Solar III, LLC | 4 | 80 MW |
| PO-Cowburn LLC | 4 | 90 MW |
| IMG Solar LLC | 4 | 84 MW |
| PD Solar 11 LLC | 4 | 80 MW |
| Agnes Solar, LLC | 4 | 116 MW |
| Mineral Basin Solar Power, LLC | 3 | 874 MW |
| Moonlight Flats Solar Power, LLC | 3 | 579 MW |
| AES DE DEVCO NC LLC | 3 | 340 MW |
| CE-Black Moshannon OZ LLC | 3 | 135 MW |
| Renovo Energy Center, LLC | 3 | 995 MW |
Recent material changes
| Observed | Project | Field | Old | New |
|---|---|---|---|---|
| 2026-10-08 | Zion View - Middletown 115 kV | status | suspended | withdrawn |
| 2026-10-07 | Sunbury-Dalmatia 69 kV | withdrawn_date | — | 2026-09-11 |
| 2026-10-06 | Lucerne 115 kV | proposed_online_date | 2027-12-31 | 2028-12-31 |
| 2026-10-02 | Clermont Solar | proposed_online_date | 2026-09-01 | 2026-11-01 |
| 2026-10-02 | West Point (PA) | proposed_online_date | 2026-09-01 | 2026-10-01 |
| 2026-10-02 | Highland North Wind Farm | capacity_mw | 75.0 | 74.8 |
| 2026-10-02 | Philipsburg-Madera 34.5 kV | proposed_online_date | 2027-12-01 | — |
| 2026-10-02 | Philipsburg-Madera 34.5 kV | operational_date | — | 2027-12-01 |
| 2026-10-02 | Philipsburg-Madera 34.5 kV | status | active | operational |
| 2026-10-01 | Madera - Westover South 115 kV | proposed_online_date | — | 2026-04-29 |
| 2026-10-01 | Madera - Westover South 115 kV | withdrawn_date | — | 2026-09-30 |
| 2026-10-01 | Madera - Westover South 115 kV | status | active | withdrawn |
Explore related data
Source last checked2026-07-31
Data last materially changed2026-10-11
Page data generated2026-10-11
Provenance: U.S. EIA — Form EIA-860M generator inventory (operating + planned); Lawrence Berkeley National Laboratory — Queued Up interconnection dataset; New York ISO — interconnection queue; PJM — new-services interconnection queue. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.
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