Otter Tail Power Company — Interconnection Queue Projects
Otter Tail Power Company is associated with 116 tracked interconnection projects representing 21,490 MW of requested capacity.
Entity resolution: this utility / transmission entity rolls up 5 source organization name(s) that were auto-matched into a single canonical cluster. Attribution is inferred from source records and may include related special-purpose entities.
116Projects
3Active
51Operational
62Withdrawn
21,490 MWRequested capacity
1Markets
Capacity by technology
| Technology | Projects | Requested capacity |
|---|---|---|
| Wind | 46 | 9,248 MW |
| Solar | 32 | 5,192 MW |
| Battery | 15 | 2,746 MW |
| Other | 19 | 2,620 MW |
| Gas | 4 | 1,685 MW |
Portfolio by market
| Market | Projects |
|---|---|
| MISO | 19 |
Geographic footprint
| State | Projects |
|---|---|
| South Dakota | 39 |
| Minnesota | 38 |
| North Dakota | 32 |
| Arkansas | 1 |
Projects
| Project | Queue ID | Technology | Capacity | Status | Location |
|---|---|---|---|---|---|
| Astoria 345kV substation | J3941 | Gas | 1,144.0 MW | operational | Deuel, South Dakota |
| Buffalo 345 kV | J2086 | Solar | 500.0 MW | withdrawn | Barnes, North Dakota |
| Big Stone South 345 kV substation | J4135 | Wind | 450.0 MW | withdrawn | Grant, South Dakota |
| Big Stone | 6098_1 | Other | 450.0 MW | operational | Grant, South Dakota |
| Big Stone South 345kV Substation | J2624 | Battery | 450.0 MW | withdrawn | Stevens, Minnesota |
| Coyote | 8222_1 | Other | 450.0 MW | operational | Mercer, North Dakota |
| Big Stone South to Ellendale 345kV | J1621 | Wind | 400.0 MW | withdrawn | McPherson, South Dakota |
| Other_ | J3952 | Solar | 395.0 MW | withdrawn | Polk, Minnesota |
| Astoria Station | 61144_1 | Gas | 349.0 MW | operational | Deuel, South Dakota |
| Big Stone South - Alexandira 345kV | J3672 | Wind | 300.0 MW | operational | Big Stone, Minnesota |
| Harvey - Underwood 230 kV Line Tap | J1456 | Wind | 300.0 MW | withdrawn | Sheridan County, North Dakota |
| Wahpeton 230kV | J2492 | Battery | 300.0 MW | withdrawn | Wilkin, Minnesota |
| Big Stone South - Deuel County 345.0kV | J3960 | Wind | 300.0 MW | operational | Lac Qui Parle, Minnesota |
| Buffalo 345kV | J707 | Wind | 300.0 MW | withdrawn | Barnes County, North Dakota |
| Big Stone South - Alexandria 345kV | J3886 | Wind | 300.0 MW | withdrawn | Swift, Minnesota |
| Big Stone South - Alexandria 345kV | J3384 | Wind | 300.0 MW | operational | Big Stone, Minnesota |
| Winger 115kV Substation | J1081 | Wind | 300.0 MW | withdrawn | Polk County, Minnesota |
| Ellendale - Twin Brooks 345.0kV | J3468 | Wind | 300.0 MW | operational | Day, South Dakota |
| Abercrombie Solar | 68339_1 | Solar | 295.1 MW | active | Richland, North Dakota |
| Buffalo 345 kV Substation | J4105 | Solar | 250.0 MW | withdrawn | Cass, North Dakota |
| Big Stone South - Alexandira 345kV | J3443 | Wind | 250.0 MW | operational | Big Stone, Minnesota |
| Big Stone South 345 kV substation | J4153 | Battery | 250.0 MW | operational | Grant, South Dakota |
| Twin Brooks 345 kV Substation | J3824 | Battery | 250.0 MW | withdrawn | Roberts, South Dakota |
| Astoria 345 kV Substation (J493/J510) | J1485 | Wind | 250.0 MW | operational | Deuel County, South Dakota |
| Ellendale 345 - Twin Brooks 345.0kV | J1989 | Wind | 250.0 MW | withdrawn | Brown, South Dakota |
| Big Stone South 345kV | J4136 | Battery | 250.0 MW | withdrawn | Grant, South Dakota |
| Big Stone South 345 kV substation | J4240 | — | 250.0 MW | operational | Grant, — |
| Big Stone South 345 kV substation | J4081 | Battery | 250.0 MW | operational | Grant, South Dakota |
| Buffalo 345 kV Substation | J4106 | Solar | 250.0 MW | withdrawn | Cass, North Dakota |
| Astoria - Deuel County 345.0kV | J3862 | Solar | 250.0 MW | withdrawn | Deuel, South Dakota |
| Jamestown 345 kV Substation | J3787 | Solar | 247.0 MW | operational | Stutsman, North Dakota |
| MISO Queue Project J4280 — Generation in an unlisted county, the U.S. | J4280 | — | 245.8 MW | operational | — |
| Hankinson 230 kV Substation | J3956 | Wind | 240.0 MW | withdrawn | Wilkin, Minnesota |
| MISO Queue Project J4300 — Generation in an unlisted county, the U.S. | J4300 | — | 238.7 MW | operational | — |
| Other_ | J3951 | Solar | 218.0 MW | withdrawn | Polk, Minnesota |
| Harvey - Underwood 230kV Line | J780 | Wind | 200.0 MW | withdrawn | Sheridan County, North Dakota |
| Browns Valley 230 kV Substation | J2852 | Battery | 200.0 MW | operational | Roberts, South Dakota |
| Big Stone South substation, Big Stone City | J721 | Wind | 200.0 MW | withdrawn | Codington County,Deuel County, South Dakota |
| Brooking County - Big Stone South (J510 Tap - J630 Tap) 345kV Line | J747 | Wind | 200.0 MW | withdrawn | Deuel County, South Dakota |
| Ellendale 345 - Twin Brooks 345.0kV | J3428 | Wind | 200.0 MW | operational | McPherson, South Dakota |
| Big Stone South - Deuel County 345.0kV | J3955 | Wind | 200.0 MW | operational | Lac Qui Parle, Minnesota |
| Ellendale - Twin Brooks 345kV | J2333 | Wind | 200.0 MW | withdrawn | McPherson, South Dakota |
| Ellendale 345 - Twin Brooks 345.0kV | J3420 | Wind | 200.0 MW | operational | McPherson, South Dakota |
| Ellendale - Big Stone South 345kV Line | J933 | Wind | 200.0 MW | withdrawn | Day County, South Dakota |
| Big Stone to Ellendale 345 kV | J1594 | Wind | 200.0 MW | withdrawn | Clark, South Dakota |
| Big Stone South 230kV Substation | J722 | Wind | 200.0 MW | withdrawn | Codington County,Deuel County, South Dakota |
| Jamestown 345 kV | J2344 | Wind | 200.0 MW | withdrawn | Stutsman, North Dakota |
| MISO Queue Project J4297 — Generation in an unlisted county, the U.S. | J4297 | — | 200.0 MW | operational | — |
| MISO Queue Project J4311 — Generation in an unlisted county, the U.S. | J4311 | — | 200.0 MW | operational | — |
| On proposed Big Stone-Ellendale 345 kV line approx. 76 miles west of Big Stone | J458 | Wind | 200.0 MW | withdrawn | Clark County, South Dakota |
| Ellendale - Twin Brooks 345kV | J2338 | Wind | 200.0 MW | withdrawn | McPherson, South Dakota |
| Jamestown 345 kV | J2518 | Battery | 200.0 MW | withdrawn | LaMoure, North Dakota |
| Big Stone-Brookings County 345KV Line | J941 | Wind | 200.0 MW | withdrawn | Grant County, South Dakota |
| Other_ | J3667 | Wind | 200.0 MW | withdrawn | Dickey, North Dakota |
| Buffalo 115 kV | J3833 | Wind | 200.0 MW | operational | Cass, North Dakota |
| Buffalo 345kV Substation | J1428 | Solar | 200.0 MW | withdrawn | Cass County, North Dakota |
| Big Stone to Ellendale (BS3ELR) 345kV (J933) | J1521 | Wind | 199.5 MW | withdrawn | Day, South Dakota |
| Buffalo 115kV | J1961 | Wind | 190.0 MW | withdrawn | Cass, North Dakota |
| Alexandria to Hudson 115 kV | J3025 | Solar | 188.0 MW | withdrawn | Douglas, Minnesota |
| Astoria 345kV | J2546 | Wind | 185.0 MW | withdrawn | Deuel, South Dakota |
| Forman 230 kV Substation | J3266 | Battery | 175.0 MW | withdrawn | Sargent, North Dakota |
| Hankinson - Wahpeton 230.0kV | J4170 | Solar | 172.0 MW | operational | Richland, North Dakota |
| Wahpeton - Fergus Falls 230.0kV | J3742 | Solar | 160.0 MW | operational | Otter Tail, Minnesota |
| Big Stone South 345 kV Substation | J3017 | Solar | 150.0 MW | withdrawn | Grant, South Dakota |
| Buffalo 115kV Substation | J975 | Wind | 150.0 MW | withdrawn | Cass County, North Dakota |
| Winger | J2291 | Solar | 150.0 MW | withdrawn | Polk, Minnesota |
| Merricourt Wind Energy Center | 57048_1 | Wind | 150.0 MW | operational | McIntosh, North Dakota |
| Astoria 345kV Substation | J1371 | Wind | 150.0 MW | withdrawn | Yellow Medicine County, Minnesota |
| Other_ | J3370 | Wind | 150.0 MW | withdrawn | Kittson, Minnesota |
| MISO Queue Project S1160 — Generation in an unlisted county, South Dakota | S1160 | — | 150.0 MW | operational | South Dakota |
| Astoria 345kV | J2003 | Solar | 150.0 MW | withdrawn | Deuel, South Dakota |
| Winger 115kV | J2749 | Solar | 150.0 MW | operational | Polk, Minnesota |
| Wilton - Winger 230.0kV | J2748 | Solar | 150.0 MW | withdrawn | Clearwater, Minnesota |
| Big Stone South 345 kV substation | J4149 | Wind | 150.0 MW | withdrawn | Grant, South Dakota |
| Astoria 345kV substation | J3400 | Gas | 142.2 MW | operational | Deuel, South Dakota |
| Canby 115 kV Substation | J3233 | Solar | 140.0 MW | operational | Yellow Medicine, Minnesota |
| Big Stone South - Alexandria 345.0kV | J3669 | Solar | 135.0 MW | operational | Stevens, Minnesota |
| Plummer Pipe | J2885 | Solar | 130.0 MW | operational | Red Lake, Minnesota |
| Big Stone South 230KV Substation | J3183 | Solar | 125.0 MW | withdrawn | Grant, South Dakota |
| Big Stone South 230kV | S1046 | — | 120.0 MW | operational | Codington, South Dakota |
Recent material changes
| Observed | Project | Field | Old | New |
|---|---|---|---|---|
| 2026-10-09 | MISO Queue Project J4311 — Generation in an unlisted county, the U.S. | new_project | — | operational |
| 2026-10-01 | MISO Queue Project J4300 — Generation in an unlisted county, the U.S. | new_project | — | operational |
| 2026-09-30 | MISO Queue Project J4297 — Generation in an unlisted county, the U.S. | new_project | — | operational |
| 2026-09-24 | SEDGEWICK SS - AECC LIGHT 115.0kV | phase | Study Not Started | Phase 2 |
| 2026-09-24 | Other_ | phase | Study Not Started | Phase 2 |
| 2026-09-24 | Jamestown 345 kV Substation | phase | Study Not Started | Phase 2 |
| 2026-09-24 | Big Stone South - Alexandria 345kV | phase | Study Not Started | Phase 2 |
| 2026-09-24 | Other_ | phase | Study Not Started | Phase 2 |
| 2026-09-24 | Canby 115 kV Substation | phase | Study Not Started | Phase 2 |
| 2026-09-24 | Ellendale - Twin Brooks 345.0kV | phase | Study Not Started | Phase 2 |
| 2026-09-24 | Wahpeton - Fergus Falls 230.0kV | phase | Study Not Started | Phase 2 |
| 2026-09-24 | Forman 230 kV Substation | phase | Study Not Started | Phase 2 |
Explore related data
Source last checked2026-07-31
Data last materially changed2026-10-12
Page data generated2026-10-12
Provenance: U.S. EIA — Form EIA-860M generator inventory (operating + planned); Lawrence Berkeley National Laboratory — Queued Up interconnection dataset; MISO — generator interconnection queue. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.
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