🔌 Interconnection Weekly: Project Updates You Need to Know (4/21/2025 - 5/4/2025)
122 projects moved in the interconnection queues across the country in the past week
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We saw the following updates to U.S. transmission grid interconnection projects. For access to our live dataset, contact our sales team here.
Round Valley – Peacock 230 kV line, Mead Switchyard 230 kV — 312MW battery + wind 🔋💨 project in Yavapai, AZ (WAPA Desert Southwest Region). Proposed completion changed from November 30, 2028 to March 31, 2028
Keota 345kV Substation — 299MW battery + solar 🔋☀️ project in Weld County, CO (Tri-State Generation and Transmission Association). Proposed completion changed from May 31, 2026 to March 31, 2030
Henry Lake -Story 230kV Line — 299MW battery + solar 🔋☀️ project in Weld County, CO (Tri-State Generation and Transmission Association). Proposed completion changed from December 30, 2025 to February 26, 2029
Huckleberry 230kV Substation — 299MW battery + solar 🔋☀️ project in Pueblo County, CO (Tri-State Generation and Transmission Association). Proposed completion changed from November 30, 2026 to March 30, 2028
Keota 345kV Substation — 299MW battery + solar 🔋☀️ project in Weld County, CO (Tri-State Generation and Transmission Association). IA date changed from May 31, 2026 to March 31, 2030
Henry Lake -Story 230kV Line — 299MW battery + solar 🔋☀️ project in Weld County, CO (Tri-State Generation and Transmission Association). IA date changed from December 30, 2025 to February 26, 2029
Huckleberry 230kV Substation — 299MW battery + solar 🔋☀️ project in Pueblo County, CO (Tri-State Generation and Transmission Association). IA date added March 30, 2028
South Fork 115kV Substation — 237MW battery + solar 🔋☀️ project in Kit Carson County, CO (Tri-State Generation and Transmission Association). Proposed completion changed from December 30, 2025 to June 28, 2027
South Fork 115kV Substation — 237MW battery + solar 🔋☀️ project in Kit Carson County, CO (Tri-State Generation and Transmission Association). IA date changed from December 30, 2025 to June 28, 2027
Maid 161kV substation — 100MW battery 🔋 project in Mayes County, OK (SPP). Proposed completion changed from May 31, 2025 to November 29, 2027
Hell Creek Substation — 90MW battery + solar 🔋☀️ project in Kit Carson County, CO (Tri-State Generation and Transmission Association). Proposed completion changed from May 31, 2025 to September 30, 2028
Hell Creek Substation — 90MW battery + solar 🔋☀️ project in Kit Carson County, CO (Tri-State Generation and Transmission Association). IA date changed from May 31, 2025 to September 30, 2028
Neset 230kV Substation — 74MW battery 🔋 project in Montrail County, ND (SPP). Proposed completion changed from December 30, 2026 to December 30, 2027
Dulles Solar and BESS — 50MW battery 🔋 project in Loudoun County, VA (PJM). Proposed completion changed from October 30, 2026 to October 30, 2027
Distribution Feeder — 1MW hydro 💧 project in Twin Falls, ID (Idaho Power Company). IA date added April 21, 2025
Custer/McNeil Substations, New Substation Near Hilltop/Stadium Substations — project in Pierce County, WA (Tacoma Public Utilities). Proposed completion changed from April 30, 2026 to December 8, 2026
TEXPO — 680MW gas 🔥 project in Wilbarger, TX (ERCOT). Proposed completion changed from October 30, 2026 to October 30, 2027
Hiru Solar — 603MW solar ☀️ project in Clay, TX (ERCOT). Proposed completion changed from May 28, 2026 to March 31, 2029
Hiru Storage — 503MW battery 🔋 project in Clay, TX (ERCOT). Proposed completion changed from March 30, 2028 to March 31, 2029
Millsing BESS — 501MW battery 🔋 project in Grimes, TX (ERCOT). Proposed completion changed from June 30, 2027 to October 14, 2028
Scorpius Solar — 500MW solar ☀️ project in Milam, TX (ERCOT). Proposed completion changed from October 22, 2026 to November 15, 2028
Hollow Branch Creek Solar — 460MW solar ☀️ project in Leon, TX (ERCOT). IA date added October 21, 2024
TRIFECTA Gas — 453MW gas 🔥 project in Midland, TX (ERCOT). Proposed completion changed from December 30, 2027 to October 30, 2029
Cold Creek Solar 2 — 445MW solar ☀️ project in Schleicher, TX (ERCOT). IA date added April 22, 2025
Western Flats Solar — 410MW solar ☀️ project in Crane, TX (ERCOT). Proposed completion changed from December 30, 2026 to October 31, 2028
Caliche Mound Solar — 408MW solar ☀️ project in Deaf Smith, TX (ERCOT). Proposed completion changed from August 27, 2025 to October 9, 2026
SOUTHERN SELECT ENERGY STORAGE — 404MW battery 🔋 project in Galveston, TX (ERCOT). Proposed completion changed from January 31, 2026 to January 14, 2027
Chickahominy Solar 1 and 2 — 320MW solar ☀️ project in Charles City County, VA (PJM). Proposed completion changed from December 30, 2024 to December 30, 2025
Elio BESS — 317MW battery 🔋 project in Brazoria, TX (ERCOT). Proposed completion changed from December 1, 2026 to August 4, 2027
Red Egret BESS — 310MW battery 🔋 project in Galveston, TX (ERCOT). Proposed completion changed from December 30, 2025 to August 30, 2026
Cuchillas BESS — 306MW battery 🔋 project in Webb, TX (ERCOT). Proposed completion changed from August 31, 2027 to December 26, 2026
Grapefruit Solar — 301MW solar ☀️ project in Hidalgo, TX (ERCOT). IA date added April 9, 2025
Acker BESS — 301MW battery 🔋 project in Castro, TX (ERCOT). IA date added April 20, 2025
NIGHTHAWK STORAGE — 300MW battery 🔋 project in San Diego, CA (CAISO). Proposed completion changed from March 30, 2025 to September 30, 2025
ORIENT - NORTHBORO 345.0kV — 263MW gas 🔥 project in Adair County, IA (MISO). Proposed completion changed from August 31, 2029 to August 31, 2027
Yellow Cat Wind — 262MW wind 💨 project in Navarro, TX (ERCOT). Proposed completion changed from September 29, 2026 to March 31, 2027
Miranda Solar Project — 261MW solar ☀️ project in Mcmullen, TX (ERCOT). Proposed completion changed from August 29, 2026 to December 5, 2027
Taormina Storage — 231MW battery 🔋 project in Bexar, TX (ERCOT). IA date added April 13, 2025
Dunkel BESS — 226MW battery 🔋 project in Lubbock, TX (ERCOT). Proposed completion changed from April 2, 2026 to November 1, 2027
Anila BESS — 209MW battery 🔋 project in Wilson, TX (ERCOT). Proposed completion changed from July 1, 2026 to June 29, 2028
ALWEST BESS — 208MW battery 🔋 project in Anderson, TX (ERCOT). Proposed completion changed from May 3, 2026 to April 18, 2028
Longfellow Solar II — 207MW solar ☀️ project in Pecos, TX (ERCOT). IA date added April 14, 2025
VERTUS ENERGY STORAGE — 207MW battery 🔋 project in Galveston, TX (ERCOT). IA date changed from March 26, 2024 to January 7, 2025
Hoyte Solar — 206MW solar ☀️ project in Milam, TX (ERCOT). Proposed completion changed from March 30, 2026 to December 14, 2026
Nockenut Springs Solar 3 — 203MW solar ☀️ project in Gonzales, TX (ERCOT). Proposed completion changed from May 4, 2027 to June 4, 2029
Nockenut Springs Solar 2 — 203MW solar ☀️ project in Guadalupe, TX (ERCOT). Proposed completion changed from May 4, 2027 to June 4, 2029
Nockenut Springs Solar 1 — 203MW solar ☀️ project in Guadalupe, TX (ERCOT). Proposed completion changed from May 4, 2027 to June 4, 2029
Loma Pinta Solar — 203MW solar ☀️ project in La Salle, TX (ERCOT). Proposed completion changed from May 30, 2026 to May 30, 2027
Staccato BESS — 202MW battery 🔋 project in Fayette, TX (ERCOT). Proposed completion changed from December 30, 2025 to December 30, 2026
Carolina Storage Odessa — 202MW battery 🔋 project in Howard, TX (ERCOT). Proposed completion changed from April 19, 2027 to July 31, 2028
Carolina Storage Wichita Falls — 202MW battery 🔋 project in Wichita, TX (ERCOT). Proposed completion changed from September 21, 2027 to July 31, 2028
Texas Cotton Solar — 201MW solar ☀️ project in Brazos, TX (ERCOT). Proposed completion changed from December 30, 2026 to December 30, 2028
Nockenut Springs Solar 4 — 201MW solar ☀️ project in Gonzales, TX (ERCOT). Proposed completion changed from May 4, 2027 to June 4, 2029
Echols Creek Solar — 201MW solar ☀️ project in Lamar, TX (ERCOT). Proposed completion changed from December 30, 2026 to October 12, 2027
Moonlight Sonata BESS — 201MW battery 🔋 project in Colorado, TX (ERCOT). Proposed completion changed from November 18, 2027 to June 30, 2028
Dios BESS — 201MW battery 🔋 project in Jackson, TX (ERCOT). IA date added April 2, 2025
Sengun BESS — 200MW battery 🔋 project in Nueces, TX (ERCOT). Proposed completion changed from January 5, 2026 to March 16, 2028
Kota Battery — 200MW battery 🔋 project in Carson, TX (ERCOT). Proposed completion changed from December 30, 2026 to October 30, 2028
Anila Solar — 200MW solar ☀️ project in Wilson, TX (ERCOT). Proposed completion changed from July 1, 2026 to June 29, 2028
Red Top Solar I — 200MW solar ☀️ project in Young, TX (ERCOT). Proposed completion changed from September 29, 2027 to April 12, 2028
Blackcat Storage — 200MW battery 🔋 project in Matagorda, TX (ERCOT). Proposed completion changed from April 5, 2026 to December 30, 2027
Iron Wolf Solar — 200MW solar ☀️ project in Van Zandt, TX (ERCOT). Proposed completion changed from December 30, 2026 to December 30, 2028
Accalia Point Solar — 190MW solar ☀️ project in Cameron, TX (ERCOT). Proposed completion changed from May 30, 2027 to November 30, 2028
Harryoung Solar — 190MW solar ☀️ project in Cameron, TX (ERCOT). Proposed completion changed from May 14, 2027 to May 14, 2028
HarryoungBESS — 190MW battery 🔋 project in Cameron, TX (ERCOT). Proposed completion changed from May 14, 2027 to May 14, 2028
Leighton Solar SLF — 183MW solar ☀️ project in Limestone, TX (ERCOT). Proposed completion changed from October 16, 2026 to April 29, 2027
Longfellow Solar I — 178MW solar ☀️ project in Pecos, TX (ERCOT). IA date added April 14, 2025
Sol Marina Energy Center — 175MW solar ☀️ project in Ellis, TX (ERCOT). IA date added April 24, 2025
Cold Creek Storage 2 — 174MW battery 🔋 project in Schleicher, TX (ERCOT). IA date added April 22, 2025
Flag City Storage SLF — 169MW battery 🔋 project in Jackson, TX (ERCOT). Proposed completion changed from December 30, 2026 to December 30, 2027
Flag City Solar — 167MW solar ☀️ project in Jackson, TX (ERCOT). Proposed completion changed from December 30, 2026 to December 30, 2027
Crowned Heron BESS 2 — 154MW battery 🔋 project in Fort Bend, TX (ERCOT). Proposed completion changed from July 30, 2025 to March 30, 2026
Quarter Ranch Solar — 154MW solar ☀️ project in Zapata, TX (ERCOT). Proposed completion changed from September 29, 2026 to October 14, 2028
Whiskey BESS — 153MW battery 🔋 project in Van Zandt, TX (ERCOT). Proposed completion changed from March 14, 2026 to January 29, 2027
Leon BESS — 153MW battery 🔋 project in Houston, TX (ERCOT). Proposed completion changed from February 15, 2028 to October 9, 2028
Zorro BESS — 153MW battery 🔋 project in Van Zandt, TX (ERCOT). Proposed completion changed from August 18, 2026 to April 30, 2027
El Patrimonio Solar — 152MW solar ☀️ project in Bexar, TX (ERCOT). Proposed completion changed from September 22, 2026 to April 28, 2027
Pink Solar — 151MW solar ☀️ project in Hunt, TX (ERCOT). IA date added August 29, 2022
Driet BESS — 150MW battery 🔋 project in Colorado, TX (ERCOT). Proposed completion changed from May 31, 2026 to October 14, 2027
Iron Wolf BESS — 150MW battery 🔋 project in Van Zandt, TX (ERCOT). Proposed completion changed from March 1, 2027 to December 30, 2028
Fluvanna Max Solar — 150MW solar ☀️ project in Scurry, TX (ERCOT). Proposed completion changed from September 27, 2028 to September 13, 2029
Riverstone Solar — 149MW solar ☀️ project in Buckingham County, VA (PJM). Proposed completion changed from August 29, 2026 to October 29, 2027
La Casa Wind — 148MW wind 💨 project in Stephens, TX (ERCOT). Proposed completion changed from June 29, 2025 to March 14, 2026
Rain Lily Solar 1 — 147MW solar ☀️ project in Hood, TX (ERCOT). Proposed completion changed from October 14, 2027 to October 14, 2028
Wensowitch Solar — 146MW solar ☀️ project in Navarro, TX (ERCOT). Proposed completion changed from September 22, 2027 to March 27, 2028
Brizo BESS — 140MW battery 🔋 project in Victoria, TX (ERCOT). IA date added March 26, 2025
Demeter Storage 2 — 138MW battery 🔋 project in Caldwell, TX (ERCOT). Proposed completion changed from December 30, 2026 to May 31, 2029
Giga Texas Data Center — 133MW battery 🔋 project in Travis, TX (ERCOT). IA date added April 29, 2025
Jumping Cactus Storage — 125MW battery 🔋 project in Duval, TX (ERCOT). Proposed completion changed from September 29, 2027 to October 14, 2028
Rock Island Generating (TEF -Due Diligence) — 121MW gas 🔥 project in Colorado, TX (ERCOT). IA date added March 16, 2025
Dove Run Solar — 120MW solar ☀️ project in Duval, TX (ERCOT). Proposed completion changed from July 30, 2026 to October 14, 2027
Sun Cactus Solar — 120MW solar ☀️ project in Duval, TX (ERCOT). Proposed completion changed from August 30, 2026 to October 14, 2027
Longfellow BESS II — 105MW battery 🔋 project in Pecos, TX (ERCOT). IA date added April 14, 2025
Rain Lily Storage 1 — 105MW battery 🔋 project in Hood, TX (ERCOT). Proposed completion changed from October 14, 2027 to October 14, 2028
Carolina Storage Young County — 104MW battery 🔋 project in Young, TX (ERCOT). Proposed completion changed from September 21, 2027 to July 31, 2028
Pioneer Path Energy Storage 1 — 103MW battery 🔋 project in Robertson, TX (ERCOT). Proposed completion changed from May 31, 2027 to November 30, 2027
Pioneer Path Energy Storage 2 — 103MW battery 🔋 project in Robertson, TX (ERCOT). Proposed completion changed from May 31, 2027 to November 30, 2027
Pioneer Path Energy Storage 3 — 103MW battery 🔋 project in Robertson, TX (ERCOT). Proposed completion changed from May 31, 2027 to November 30, 2027
Pioneer Path Energy Storage 4 — 103MW battery 🔋 project in Robertson, TX (ERCOT). Proposed completion changed from May 31, 2027 to November 30, 2027
Prairie Horizon Energy Storage 1 — 103MW battery 🔋 project in Robertson, TX (ERCOT). Proposed completion changed from May 31, 2027 to November 30, 2027
Prairie Horizon Energy Storage 2 — 103MW battery 🔋 project in Robertson, TX (ERCOT). Proposed completion changed from May 31, 2027 to November 30, 2027
Prairie Horizon Energy Storage 3 — 103MW battery 🔋 project in Robertson, TX (ERCOT). Proposed completion changed from May 31, 2027 to November 30, 2027
Prairie Horizon Energy Storage 4 — 103MW battery 🔋 project in Robertson, TX (ERCOT). Proposed completion changed from May 31, 2027 to November 30, 2027
Roost Energy Storage — 102MW battery 🔋 project in Scurry, TX (ERCOT). Proposed completion changed from September 14, 2026 to September 12, 2027
Holstein 2 Solar — 101MW solar ☀️ project in Nolan, TX (ERCOT). Proposed completion changed from April 30, 2027 to April 2, 2028
Paradiso BESS — 100MW battery 🔋 project in Atascosa, TX (ERCOT). IA date added April 17, 2025
Echols Creek Storage — 100MW battery 🔋 project in Lamar, TX (ERCOT). Proposed completion changed from December 30, 2026 to October 12, 2027
Demeter Solar — 88MW solar ☀️ project in Caldwell, TX (ERCOT). Proposed completion changed from March 27, 2026 to May 31, 2029
Hinkell BESS — 78MW battery 🔋 project in La Salle, TX (ERCOT). Proposed completion changed from April 30, 2026 to November 14, 2027
92kV P line — 70MW battery 🔋 project in Imperial County, CA (Imperial Irrigation District). Proposed completion changed from May 31, 2025 to May 31, 2028
Demeter Storage — 65MW battery 🔋 project in Caldwell, TX (ERCOT). Proposed completion changed from March 27, 2026 to May 31, 2029
Centennial Solar — 61MW solar ☀️ project in Menard, TX (ERCOT). Proposed completion changed from April 28, 2028 to April 29, 2029
Sol Marina Energy Center BESS — 57MW battery 🔋 project in Ellis, TX (ERCOT). IA date added April 24, 2025
Longfellow BESS I — 54MW battery 🔋 project in Pecos, TX (ERCOT). IA date added April 14, 2025
Bergen Generating Station — 51MW gas 🔥 project in Bergen County, NJ (PJM). Proposed completion changed from May 30, 2026 to June 29, 2027
Voyager Storage — 50MW battery 🔋 project in Wharton, TX (ERCOT). Proposed completion changed from April 7, 2026 to April 7, 2028
Fluvanna Max BESS — 50MW battery 🔋 project in Scurry, TX (ERCOT). Proposed completion changed from September 27, 2028 to September 13, 2029
Redbud-Gaylord 34.5 kV — 30MW solar ☀️ project in Frederick County, VA (PJM). Proposed completion changed from March 30, 2025 to March 30, 2026
Shands Energy Center — 15MW battery 🔋 project in Sussex County, VA (PJM). Proposed completion changed from December 30, 2024 to December 30, 2025
Damon BESS 2 — 9MW battery 🔋 project in Brazoria, TX (ERCOT). Proposed completion changed from August 11, 2025 to August 20, 2026
Gears BESS — 9MW battery 🔋 project in Harris, TX (ERCOT). Proposed completion changed from February 14, 2025 to September 4, 2025
Roadrunner Crossing BESS SLF — battery 🔋 project in Eastland, TX (ERCOT). IA date added February 17, 2025
