🔌 Interconnection Weekly: Project Updates You Need to Know (2/3/2025 - 2/23/2025)

130 projects moved in the interconnection queues across the country in the past 2 weeks

Special Note: Our team will be at Intersolar San Diego 2/25-2/27 - reach out if you’re attending as well and want to meet!

We saw the following updates to U.S. transmission grid interconnection projects. For access to our live dataset, contact our sales team here.

Proposed New Facility — 800MW battery + solar 🔋☀️ project in Imperial County, CA (Imperial Irrigation District). Proposed completion changed from April 30, 2026 to November 30, 2027

Proposed New Facility — 500MW battery + solar 🔋☀️ project in Imperial County, CA (Imperial Irrigation District). Proposed completion changed from May 31, 2026 to February 29, 2028

Yellow Wood Solar Energy Center — 300MW solar ☀️ project in Clinton County, OH (PJM). Proposed completion changed from December 30, 2025 to September 29, 2026

Proposed New Facility — 270MW battery + solar 🔋☀️ project in Imperial County, CA (Imperial Irrigation District). Proposed completion changed from May 31, 2026 to November 30, 2028

Denison 230kV Substation — 180MW wind 💨 project in Crawford County, IA (SPP). Proposed completion changed from February 1, 2027 to October 14, 2027

230kV Coachella Valley Substation — 125MW battery 🔋 project in Riverside County, CA (Imperial Irrigation District). Proposed completion changed from May 31, 2023 to April 30, 2027

230kV KN/KS line — 125MW battery + solar 🔋☀️ project in Riverside County, CA (Imperial Irrigation District). Proposed completion changed from November 30, 2025 to July 31, 2027

Ridgeway Solar — 120MW solar ☀️ project in Mckean County, PA (PJM). Proposed completion changed from June 29, 2025 to January 29, 2026

Roadrunner 115kV — 110MW solar ☀️ project in Lea County, NM (SPP). Proposed completion changed from December 30, 2024 to December 30, 2026

92kV Coachella Valley Substation — 80MW biomass + other 🌿🔌 project in Riverside County, CA (Imperial Irrigation District). Proposed completion changed from March 31, 2026 to April 30, 2027

Tryon 138kV Substation — 72MW solar ☀️ project in Lincoln, OK (SPP). Proposed completion changed from April 30, 2026 to October 31, 2026

Branch 161kV Substation — 72MW solar ☀️ project in Franklin County, AR (SPP). Proposed completion changed from May 31, 2026 to February 28, 2027

161 kV BRANCH 5 (Bus # 515316) — 72MW battery 🔋 project in Franklin County, AR (SPP). Proposed completion changed from May 31, 2026 to February 28, 2027

92kV R line — 65MW battery + solar 🔋☀️ project in Imperial County, CA (Imperial Irrigation District). Proposed completion changed from November 30, 2027 to May 31, 2026

161kV L line — 50MW geothermal 🌋 project in Imperial County, CA (Imperial Irrigation District). Proposed completion changed from May 31, 2028 to August 31, 2030

92kV Heber Substation — 33MW geothermal 🌋 project in Imperial County, CA (Imperial Irrigation District). Proposed completion changed from August 31, 2026 to August 31, 2027

Group @ West Pond 737 - EMA ASO — 6MW battery + solar 🔋☀️ project in Middlesex County, MA (ISO-NE). Proposed completion changed from November 29, 2023 to July 30, 2025

Solar + battery — 5MW battery + solar 🔋☀️ project in Middlesex County, MA (ISO-NE). Proposed completion changed from November 29, 2023 to May 20, 2025

Tremont 713 - EMA ASO — 4MW battery + solar 🔋☀️ project in Plymouth County, MA (ISO-NE). Proposed completion changed from November 29, 2023 to July 30, 2025

Solar + Battery — 2MW battery + solar 🔋☀️ project in Plymouth County, MA (ISO-NE). Proposed completion changed from November 29, 2023 to July 30, 2025

P2977 Prosperity MPC Wind — 467MW wind 💨 project in Wheatland County, AB (AESO). Proposed completion changed from August 31, 2027 to August 31, 2029

P2713 UK LS1 Solar — 449MW solar ☀️ project in Greenview No 16, AB (AESO). Proposed completion changed from January 31, 2027 to July 14, 2028

P2445 Kiwetinohk Homestead MPC Solar — 401MW solar ☀️ project in Willow Creek No 26, AB (AESO). Proposed completion changed from February 28, 2026 to February 28, 2027

North Side Solar — 180MW solar ☀️ project in St Lawrence County, NY (NYISO). Proposed completion changed from November 30, 2024 to March 31, 2028

138 kV Greenwood Station — 176MW battery 🔋 project in Creek County, OK (SPP). Proposed completion changed from May 31, 2025 to May 31, 2026

Palomino Solar, Hillsboro-Middleboro 138 kV — 150MW solar ☀️ project in Highland County, OH (PJM). Proposed completion changed from December 30, 2023 to August 14, 2027

P2592 Big Rock Solar Battery — 130MW battery + solar 🔋☀️ project in Foothills County, AB (AESO). Proposed completion changed from May 31, 2025 to November 30, 2026

South Branch Solar — 129MW solar ☀️ project in Hancock County, OH (PJM). Proposed completion changed from December 30, 2022 to February 27, 2026

Rainbow Trout — 120MW battery + solar 🔋☀️ project in Tippecanoe County, IN (PJM). Proposed completion changed from May 31, 2024 to January 30, 2028

P2490 TransAlta Tempest MPC Wind — 100MW wind 💨 project in Lethbridge County, AB (AESO). Proposed completion changed from March 31, 2025 to July 31, 2027

Bear Ridge Solar — 100MW solar ☀️ project in Niagara County, NY (NYISO). Proposed completion changed from January 31, 2025 to March 31, 2027

Gibson Solar I — 100MW solar ☀️ project in King George County, VA (PJM). Proposed completion changed from April 30, 2027 to December 30, 2027

Sun Chief Solar Farm, Jay 138 kV — 100MW solar ☀️ project in Jay County, IN (PJM). Proposed completion changed from September 30, 2023 to March 30, 2027

Wilson Solar — 80MW solar ☀️ project in Erie County, PA (PJM). Proposed completion changed from August 31, 2026 to May 16, 2027

Harlem River Yard — 79MW battery 🔋 project in Queens County, NY (NYISO). Proposed completion changed from November 30, 2026 to December 31, 2027

Alameda Solar — 70MW solar ☀️ project in Fauquier County, VA (PJM). Proposed completion changed from January 30, 2026 to December 30, 2027

Fenwick Creek Solar — 38MW battery + solar 🔋☀️ project in Atlantic County, NJ (PJM). Proposed completion changed from December 30, 2023 to August 31, 2027

P2195 FortisAlberta Bassano 435S DER Solar — 4MW solar ☀️ project in Newell County, AB (AESO). Proposed completion changed from November 28, 2024 to November 30, 2025

P2881 South Mayerthorpe 443S DER Gas — 3MW gas 🔥 project in Parkland County, AB (AESO). Proposed completion changed from June 30, 2025 to May 5, 2026

Comanche BESS — 614MW battery 🔋 project in Comanche, TX (ERCOT). Proposed completion changed from January 15, 2027 to October 10, 2028

Lavita BESS — 606MW battery 🔋 project in Bell, TX (ERCOT). Proposed completion changed from December 30, 2026 to February 17, 2028

Longleaf Power Station (TEF-Due Diligence), Longleaf Power Station — 600MW gas 🔥 project in Angelina, TX (ERCOT). Proposed completion changed from May 31, 2026 to May 31, 2028

Avalon BESS — 522MW battery 🔋 project in Fort Bend, TX (ERCOT). IA date added December 16, 2024

Bottom Grass Solar — 508MW solar ☀️ project in Colorado, TX (ERCOT). Proposed completion changed from November 30, 2026 to September 30, 2027

Buffalo Creek — 438MW solar ☀️ project in Fort Bend, TX (ERCOT). Proposed completion changed from January 9, 2025 to October 31, 2025

Farrier Station Energy Storage — 409MW battery 🔋 project in Hopkins, TX (ERCOT). Proposed completion changed from November 30, 2027 to May 31, 2028

Callisto II Energy Center — 406MW battery 🔋 project in Harris, TX (ERCOT). Proposed completion changed from December 9, 2025 to June 30, 2026

Kiskadee Trail Solar SLF, Kiskadee Trail Solar — 406MW solar ☀️ project in Dimmit, TX (ERCOT). Proposed completion changed from February 29, 2028 to September 30, 2029

Kiskadee Trail Storage SLF, Kiskadee Trail Storage — 406MW battery 🔋 project in Dimmit, TX (ERCOT). Proposed completion changed from February 29, 2028 to September 30, 2029

Bottom Grass Solar II — 401MW solar ☀️ project in Colorado, TX (ERCOT). Proposed completion changed from November 30, 2026 to September 30, 2027

West Munday Wind — 351MW wind 💨 project in Knox, TX (ERCOT). Proposed completion changed from October 30, 2026 to June 29, 2028

Vista Bluff Wind 2 — 290MW wind 💨 project in Upton, TX (ERCOT). Proposed completion changed from December 30, 2027 to December 30, 2028

Battery Storage — 289MW battery 🔋 project in New London County, CT (ISO-NE). Proposed completion changed from September 30, 2024 to September 30, 2027

Battery Storage — 262MW battery 🔋 project in New Haven County, CT (ISO-NE). Proposed completion changed from September 30, 2024 to September 30, 2027

First Capitol BESS — 256MW battery 🔋 project in Brazoria, TX (ERCOT). IA date added June 9, 2024

Railway BESS — 254MW battery 🔋 project in Rusk, TX (ERCOT). Proposed completion changed from August 27, 2026 to May 31, 2028

Lazy U Solar 1 — 252MW solar ☀️ project in Hardeman, TX (ERCOT). Proposed completion changed from June 30, 2027 to June 29, 2029

Lazy U Solar 2 — 252MW solar ☀️ project in Hardeman, TX (ERCOT). Proposed completion changed from June 30, 2027 to June 29, 2029

Lazy U ESS 1 — 251MW battery 🔋 project in Hardeman, TX (ERCOT). Proposed completion changed from June 30, 2027 to June 29, 2029

Lazy U ESS 2 — 251MW battery 🔋 project in Hardeman, TX (ERCOT). Proposed completion changed from June 30, 2027 to June 29, 2029

Hill Valley BESS — 245MW battery 🔋 project in Grimes, TX (ERCOT). Proposed completion changed from November 30, 2026 to July 14, 2028

Taormina Storage — 231MW battery 🔋 project in Bexar, TX (ERCOT). Proposed completion changed from May 31, 2026 to May 25, 2029

White Tail Solar — 226MW solar ☀️ project in Deaf Smith, TX (ERCOT). Proposed completion changed from April 21, 2026 to September 20, 2027

Castro Solar — 222MW solar ☀️ project in Castro, TX (ERCOT). Proposed completion changed from September 29, 2026 to October 10, 2027

Sorghum BESS — 208MW battery 🔋 project in Wharton, TX (ERCOT). IA date added January 7, 2025

Sultan Solar — 206MW solar ☀️ project in Bosque, TX (ERCOT). Proposed completion changed from December 30, 2026 to December 30, 2027

Malala Storage — 205MW battery 🔋 project in Dallas, TX (ERCOT). Proposed completion changed from April 2, 2027 to April 20, 2028

TOCE BESS 1 — 205MW battery 🔋 project in Wharton, TX (ERCOT). IA date added December 29, 2024

Nazareth Solar — 204MW solar ☀️ project in Castro, TX (ERCOT). Proposed completion changed from December 30, 2025 to December 30, 2026

Hamlet Solar — 204MW solar ☀️ project in Frio, TX (ERCOT). Proposed completion changed from September 4, 2028 to September 3, 2029

Hamlet Storage — 204MW battery 🔋 project in Frio, TX (ERCOT). Proposed completion changed from September 4, 2028 to September 3, 2029

Bottom Grass BESS — 202MW battery 🔋 project in Colorado, TX (ERCOT). Proposed completion changed from November 30, 2026 to September 30, 2027

Caladium BESS — 202MW battery 🔋 project in Waller, TX (ERCOT). Proposed completion changed from May 10, 2026 to November 29, 2027

Pianissimo BESS II — 202MW battery 🔋 project in Wise, TX (ERCOT). Proposed completion changed from September 13, 2026 to December 30, 2027

Mesteno Wind — 201MW wind 💨 project in Starr, TX (ERCOT). Proposed completion changed from December 30, 2024 to June 29, 2025

Champaign BESS — 201MW battery 🔋 project in Glasscock, TX (ERCOT). Proposed completion changed from September 13, 2026 to June 27, 2027

Seragio BESS — 201MW battery 🔋 project in Ector, TX (ERCOT). Proposed completion changed from September 13, 2026 to June 27, 2027

Dan Kearney BESS — 200MW battery 🔋 project in Brazoria, TX (ERCOT). Proposed completion changed from May 31, 2025 to March 31, 2027

Pleasant Prairie Solar Energy Center, Pleasant Prairie Solar — 200MW solar ☀️ project in Franklin County, OH (PJM). Proposed completion changed from December 30, 2026 to March 29, 2026

WILDWIND — 180MW wind 💨 project in Cooke, TX (ERCOT). Proposed completion changed from January 30, 2025 to November 14, 2025

MRG GOODY SOLAR — 170MW solar ☀️ project in Lamar, TX (ERCOT). Proposed completion changed from July 6, 2025 to January 30, 2026

LONE STAR INDUSTRIAL PARK GAS POWER PROJECT (TEF-Due Diligence), LIP GAS POWER PROJECT — 166MW gas 🔥 project in Morris, TX (ERCOT). Proposed completion changed from May 31, 2027 to May 10, 2028

SunWave Solar — 159MW solar ☀️ project in Nueces, TX (ERCOT). Proposed completion changed from May 28, 2027 to June 29, 2028

Padua Grid BESS Unit 2 — 150MW battery 🔋 project in Bexar, TX (ERCOT). IA date added January 9, 2025

Bottom Grass BESS II — 150MW battery 🔋 project in Colorado, TX (ERCOT). Proposed completion changed from November 30, 2026 to September 30, 2027

Solara BESS 1 — 150MW battery 🔋 project in Jones, TX (ERCOT). Proposed completion changed from November 29, 2026 to November 29, 2027

Solara BESS 2 — 150MW battery 🔋 project in Jones, TX (ERCOT). Proposed completion changed from November 29, 2026 to November 29, 2027

Cannibal Draw Solar — 149MW solar ☀️ project in Glasscock, TX (ERCOT). IA date added January 16, 2025

Cosper Solar — 148MW solar ☀️ project in Bell, TX (ERCOT). Proposed completion changed from April 17, 2027 to November 11, 2027

Blue Valley Solar — 147MW solar ☀️ project in Val Verde, TX (ERCOT). Proposed completion changed from March 14, 2027 to March 14, 2028

Battery Storage — 136MW battery 🔋 project in New Haven County, CT (ISO-NE). Proposed completion changed from September 30, 2024 to September 30, 2027

Palacios BESS — 125MW battery 🔋 project in Cameron, TX (ERCOT). Proposed completion changed from September 7, 2025 to November 27, 2027

Zodiac Storage — 125MW battery 🔋 project in Val Verde, TX (ERCOT). Proposed completion changed from July 31, 2027 to August 28, 2028

Solar Star North Herty Storage — 125MW battery 🔋 project in Angelina, TX (ERCOT). Proposed completion changed from April 19, 2026 to August 24, 2027

Shaw Solar — 124MW solar ☀️ project in Bandera, TX (ERCOT). Proposed completion changed from September 11, 2025 to April 28, 2026

Prairie Blossom Storage — 122MW battery 🔋 project in Howard, TX (ERCOT). Proposed completion changed from June 30, 2027 to September 20, 2028

GP Solar — 121MW solar ☀️ project in Van Zandt, TX (ERCOT). Proposed completion changed from May 14, 2025 to June 20, 2027

Backbone Creek BESS — 121MW battery 🔋 project in Burnet, TX (ERCOT). Proposed completion changed from December 25, 2026 to April 20, 2026

Nymphaea Solar — 120MW solar ☀️ project in Wichita, TX (ERCOT). Proposed completion changed from June 29, 2027 to June 30, 2028

Roxton Solar — 116MW solar ☀️ project in Lamar, TX (ERCOT). Proposed completion changed from December 30, 2026 to February 17, 2028

Roxton Storage — 102MW battery 🔋 project in Lamar, TX (ERCOT). Proposed completion changed from December 30, 2026 to February 17, 2028

Blue Sky Sol — 101MW solar ☀️ project in Crockett, TX (ERCOT). Proposed completion changed from February 14, 2025 to April 22, 2027

Hondo Arroyo Storage — 100MW battery 🔋 project in Medina, TX (ERCOT). Proposed completion changed from June 30, 2027 to June 30, 2028

Dolce BESS — 100MW battery 🔋 project in Mitchell, TX (ERCOT). Proposed completion changed from August 31, 2026 to June 27, 2027

BRP Diran BESS — 100MW battery 🔋 project in Wharton, TX (ERCOT). IA date added January 6, 2025

Long Point Storage — 100MW battery 🔋 project in Brazoria, TX (ERCOT). Proposed completion changed from November 30, 2025 to December 29, 2026

Ariji BESS — 100MW battery 🔋 project in Howard, TX (ERCOT). Proposed completion changed from September 13, 2026 to June 27, 2027

Edgewood BESS 1 — 100MW battery 🔋 project in Van Zandt, TX (ERCOT). Proposed completion changed from May 31, 2027 to February 29, 2028

Cannibal Draw Storage — 98MW battery 🔋 project in Glasscock, TX (ERCOT). IA date added January 16, 2025

A tap on the Distribution Provider’s Oakgrove – Riverway 66 kV Line. — 88MW battery 🔋 project in Tulare, CA (CAISO). Proposed completion changed from March 14, 2022 to June 14, 2024

Carnation, Harrison-Good Hope 138 kV — 84MW solar ☀️ project in Fairfield County, OH (PJM). Proposed completion changed from December 30, 2023 to March 30, 2028

Proving Ground Solar — 82MW solar ☀️ project in Schleicher, TX (ERCOT). Proposed completion changed from February 28, 2026 to June 29, 2028

Hector Solar — 81MW solar ☀️ project in Navarro, TX (ERCOT). Proposed completion changed from December 30, 2025 to December 30, 2027

VALDIVIAN SOLAR — 80MW solar ☀️ project in Hunt, TX (ERCOT). Proposed completion changed from September 25, 2026 to March 27, 2028

JUNIPERUSSS — 80MW solar ☀️ project in Hopkins, TX (ERCOT). Proposed completion changed from April 22, 2027 to April 2, 2028

Sunbeam Solar — 73MW solar ☀️ project in San Patricio, TX (ERCOT). Proposed completion changed from August 28, 2026 to June 29, 2028

Nymphaea Storage — 61MW battery 🔋 project in Wichita, TX (ERCOT). Proposed completion changed from June 29, 2027 to June 30, 2028

Hondo Arroyo Solar — 60MW solar ☀️ project in Medina, TX (ERCOT). Proposed completion changed from June 30, 2027 to June 30, 2028

Carnation, Harrison-Good Hope 138 kV — 58MW solar ☀️ project in Fairfield County, OH (PJM). Proposed completion changed from December 30, 2023 to March 30, 2028

MRG Goody Storage — 52MW battery 🔋 project in Lamar, TX (ERCOT). Proposed completion changed from July 6, 2025 to January 30, 2026

Proving Ground BESS — 51MW battery 🔋 project in Schleicher, TX (ERCOT). Proposed completion changed from February 28, 2026 to June 29, 2028

Lumberjack Storage — 51MW battery 🔋 project in Cherokee, TX (ERCOT). Proposed completion changed from June 30, 2026 to March 30, 2028

Ayass BESS — 51MW battery 🔋 project in Throckmorton, TX (ERCOT). Proposed completion changed from October 14, 2026 to May 4, 2028

Pleasant Prairie Solar Energy Center, Cole 345 kV — 50MW solar ☀️ project in Franklin County, OH (PJM). Proposed completion changed from December 30, 2022 to March 29, 2026

Hector Storage — 42MW battery 🔋 project in Navarro, TX (ERCOT). Proposed completion changed from December 30, 2025 to December 30, 2027

Lager Storage — 31MW battery 🔋 project in Nueces, TX (ERCOT). Proposed completion changed from April 29, 2026 to June 29, 2028

TEXAS GULF SULPHUR REPOWER — 16MW gas 🔥 project in Wharton, TX (ERCOT). Proposed completion changed from June 24, 2024 to March 26, 2025

Jones St. No 1201 69kV substation — 11MW battery 🔋 project in Douglas County, NE (SPP). Proposed completion changed from May 30, 2026 to February 27, 2027

Pirate BESS — 9MW battery 🔋 project in San Patricio, TX (ERCOT). IA date added September 10, 2023

Elbow Creek repower — wind 💨 project in Howard, TX (ERCOT). Proposed completion changed from May 30, 2024 to August 31, 2025