🔌 Interconnection Weekly: Project Updates You Need to Know (5/5/2025 - 5/18/2025)

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

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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.

Caledonia — 889MW gas 🔥 project in Lamar County, AL (Southern Company). IA date changed from September 4, 2013 to July 16, 2020

McCall Road - West McIntosh 500 kV Line — 722MW gas 🔥 project in Effingham County, GA (Southern Company). Proposed completion changed from August 31, 2029 to November 30, 2031

Casitas 66/16 (D) — 500MW solar ☀️ project in Ventura, CA (CAISO). Proposed completion changed from December 30, 2025 to November 14, 2026

Chickahominy Solar 1 and 2 — 320MW solar ☀️ project in Charles City County, VA (PJM). Proposed completion changed from December 30, 2025 to December 30, 2024

North Dublin - Wadley Primary 230 kV Line — 225MW solar ☀️ project in Laurens County, GA (Southern Company). Proposed completion changed from February 28, 2027 to May 31, 2028

Laurel East - South Jones 230 kV Line — 200MW solar ☀️ project in Jones County, MS (Southern Company). Proposed completion changed from July 31, 2027 to October 5, 2028

Rocky Creek - Wadley Primary 230 kV Line — 200MW solar ☀️ project in Jefferson County, GA (Southern Company). Proposed completion changed from June 14, 2027 to May 31, 2028

Douglas - Kettle Creek Primary 230 kV Line — 200MW battery + solar 🔋☀️ project in Coffee County, GA (Southern Company). Proposed completion changed from April 30, 2026 to September 30, 2027

North Americus - Palmyra 230 kV Line — 200MW battery + solar 🔋☀️ project in Lee County, GA (Southern Company). Proposed completion changed from June 30, 2026 to May 31, 2027

North Tifton - Stump Creek 230 kV Line — 200MW battery + solar 🔋☀️ project in Irwin County, GA (Southern Company). Proposed completion changed from December 3, 2026 to June 5, 2028

McConnell - Pegamore 230 kV Line — 200MW battery 🔋 project in Paulding County, GA (Southern Company). Proposed completion changed from March 31, 2027 to March 31, 2030

Hillsdale North — 185MW solar ☀️ project in Vermillion County, IN (MISO). Proposed completion changed from June 19, 2025 to October 5, 2026

Bassett Creek - Greene County 230 kV Line — 175MW battery + solar 🔋☀️ project in Marengo County, AL (Southern Company). Proposed completion changed from March 31, 2027 to November 30, 2028

Scooter Substation 230 kV BUS — 160MW battery + solar 🔋☀️ project in Mitchell County, GA (Southern Company). Proposed completion changed from April 30, 2026 to April 30, 2027

DeGrasse 138kV Substation — 155MW solar ☀️ project in Woods County, OK (SPP). Proposed completion changed from December 30, 2027 to December 30, 2028

Ramsey East 138kV bus — 150MW solar ☀️ project in Fayette County, IL (MISO). Proposed completion changed from August 4, 2024 to April 29, 2027

Skillman Substation 161kV — 150MW solar ☀️ project in Hancock County, KY (MISO). Proposed completion changed from August 31, 2023 to August 31, 2026

Worthington Substation 138kV — 150MW solar ☀️ project in Greene County, IN (MISO). Proposed completion changed from August 31, 2023 to August 31, 2026

Morrison Ditch 138kV — 150MW solar ☀️ project in Newton County, IN (MISO). Proposed completion changed from September 30, 2023 to September 30, 2026

San Jose Rail 138kV — 150MW solar ☀️ project in Tazewell County, IL (MISO). Proposed completion changed from September 14, 2023 to September 14, 2026

Sandersville #1 - Wadley Primary 230 kV LIne — 127MW solar ☀️ project in Jefferson County, GA (Southern Company). Proposed completion changed from May 30, 2027 to May 31, 2028

Bonaire Primary - Eastman Primary 115 kV Line — 120MW solar ☀️ project in Dodge County, GA (Southern Company). Proposed completion changed from August 14, 2022 to January 30, 2027

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

Dodson Creek Solar — 117MW solar ☀️ project in Ross County, OH (PJM). Proposed completion changed from July 29, 2024 to May 29, 2025

Shaddock Creek - Vidalia 115 kV Line — 110MW battery + solar 🔋☀️ project in Treutlen County, GA (Southern Company). Proposed completion changed from August 14, 2026 to February 14, 2027

North Tifton - Pitts 230 kV Line — 110MW battery + solar 🔋☀️ project in Turner County, GA (Southern Company). Proposed completion changed from August 14, 2026 to February 14, 2027

Auburn North to Chatham Main 138kV — 100MW solar ☀️ project in Sangamon County, IL (MISO). Proposed completion changed from August 30, 2023 to August 30, 2026

Newton - Forest Industrial 115 kV Line — 100MW solar ☀️ project in Newton County, MS (Southern Company). Proposed completion changed from March 31, 2027 to March 31, 2029

Anniston (APC) - Hammond 230 kV Line — 100MW solar ☀️ project in Floyd County, GA (Southern Company). Proposed completion changed from August 14, 2026 to December 3, 2028

North Fort Dodge 115kV Substation — 100MW solar ☀️ project in Ford County, KS (SPP). Proposed completion changed from December 14, 2027 to December 14, 2028

Moonstone Substation 138kV — 100MW battery + solar 🔋☀️ project in Blaine, ID (Idaho Power Company). IA date added April 29, 2025

Moonstone Substation 138kV — 100MW battery + solar 🔋☀️ project in Blaine, ID (Idaho Power Company). IA date added April 29, 2025

Thistle 345kV substation — 95MW battery 🔋 project in Barber County, KS (SPP). Proposed completion changed from December 30, 2027 to November 30, 2028

Hawthorn Solar — 83MW solar ☀️ project in Delaware County, IN (PJM). Proposed completion changed from December 30, 2027 to December 30, 2028

Tonnece Substation 69kV — 80MW solar ☀️ project in Benton County, AR (SPP). Proposed completion changed from December 30, 2025 to July 10, 2027

Cane Creek Solar — 78MW solar ☀️ project in Clarke County, MS (Southern Company). IA date added November 18, 2021

MoonShot Solar — 78MW solar ☀️ project in Hancock, MS (Southern Company). IA date added November 18, 2021

Rocky Forge Wind — 78MW wind 💨 project in Botetourt County, VA (PJM). Proposed completion changed from December 30, 2025 to December 30, 2026

GPC Mossy Branch Battery Storage Station, Mossy Branch Substation 115 kV Bus — 65MW battery 🔋 project in Talbot County, GA (Southern Company). IA date added March 9, 2021

MULQUEENEY RANCH WIND 2 — 60MW wind 💨 project in Alameda, CA (CAISO). Proposed completion changed from November 29, 2024 to May 31, 2026

Shell - McCracken County 69.0kV — 60MW solar ☀️ project in Mccracken County, KY (MISO). Proposed completion changed from October 30, 2022 to October 30, 2025

Mark Center Solar Project — 60MW solar ☀️ project in Defiance County, OH (PJM). Proposed completion changed from December 30, 2025 to September 29, 2026

Fort Stewart CU 115 kV Bus — 43MW battery + solar 🔋☀️ project in Liberty County, GA (Southern Company). Proposed completion changed from February 8, 2026 to February 11, 2027

South Fairchild Tap 115kV — 40MW solar ☀️ project in Spokane, WA (Avista Utilities). Proposed completion changed from June 29, 2027 to June 29, 2028

MCLB Solar — 31MW solar ☀️ project in Dougherty County, GA (Southern Company). IA date changed from August 31, 2016 to November 10, 2016

Gavin Unit No. 1 — 18MW coal 🏭 project in Gallia County, OH (PJM). Proposed completion changed from June 8, 2024 to May 30, 2025

Saticoy 66/16 (D) — 4MW battery 🔋 project in Ventura, CA (CAISO). Proposed completion changed from December 30, 2025 to November 14, 2026

LASSEN LODGE HYDROELECTRIC 2 — 0MW hydro 💧 project in Tehama, CA (CAISO). Proposed completion changed from October 15, 2024 to October 14, 2027

Sunrise Wind — 880MW offshore wind 🌊️ project in Suffolk County, NY (NYISO). Proposed completion changed from February 28, 2026 to June 30, 2027

EUISMOD — 600MW battery + solar 🔋☀️ project in Kern, CA (CAISO). Proposed completion changed from February 25, 2033 to May 31, 2028

Glen Falls Facility — 550MW gas 🔥 project in Harrison County, WV (PJM). Proposed completion changed from March 30, 2028 to January 30, 2029

P2789 Red Willow Solar Battery — 325MW battery + solar 🔋☀️ project in Flagstaff County, AB (AESO). Proposed completion changed from January 31, 2027 to August 30, 2028

P2347 Forty Mile Granlea Solar Phase 2 — 220MW solar ☀️ project in Cypress County, AB (AESO). Proposed completion changed from June 30, 2025 to August 30, 2028

Terminal substation — 200MW battery 🔋 project in Salt Lake, UT (PacifiCorp). Proposed completion changed from June 30, 2026 to December 30, 2025

P2091 Arenosum Solar — 151MW solar ☀️ project in Special Area No 2, AB (AESO). Proposed completion changed from May 25, 2027 to May 25, 2028

Interconnecting into OG&E's Ranch Road 345kV substation by tapping a 0.1 gen tie line into the existing Frontier II gen-tie line — 151MW battery 🔋 project in Kay County, OK (SPP). Proposed completion changed from November 29, 2025 to December 30, 2027

Interconnecting into OG&E's Ranch Road 345kV substation by tapping a 0.1 gen tie line into the existing Frontier II gen-tie line — 151MW battery 🔋 project in Kay County, OK (SPP). Proposed completion changed from November 29, 2025 to December 30, 2027

Bradford Solar — 100MW solar ☀️ project in Mckean County, PA (PJM). Proposed completion changed from December 14, 2026 to December 14, 2027

Tillman Solar Park — 100MW solar ☀️ project in Allen County, IN (PJM). Proposed completion changed from December 30, 2028 to December 30, 2029

RECLAIMED WIND — 90MW battery 🔋 project in Alameda, CA (CAISO). Proposed completion changed from April 3, 2025 to November 30, 2026

SAND HILL C — 80MW wind 💨 project in Alameda, CA (CAISO). Proposed completion changed from April 27, 2025 to April 27, 2027

SCAFELL STORAGE — 50MW battery 🔋 project in San Diego, CA (CAISO). Proposed completion changed from June 19, 2033 to June 29, 2029

PROSPECT ENERGY STORAGE — 49MW battery 🔋 project in Sacramento, CA (CAISO). Proposed completion changed from March 30, 2026 to May 31, 2028

Glen Falls Facility — 45MW gas 🔥 project in Harrison County, WV (PJM). Proposed completion changed from March 30, 2028 to January 30, 2029

Sunrise Wind II — 44MW offshore wind 🌊️ project in Suffolk County, NY (NYISO). Proposed completion changed from February 28, 2026 to June 30, 2027

Glen Falls Facility — 30MW gas 🔥 project in Harrison County, WV (PJM). Proposed completion changed from March 30, 2028 to January 30, 2029

Valley Solar — 20MW solar ☀️ project in Tioga County, NY (NYISO). Proposed completion changed from October 31, 2024 to December 31, 2026

HU-Pauls — 20MW solar ☀️ project in Huntingdon County, PA (PJM). Proposed completion changed from December 30, 2025 to March 30, 2027

P2757 Sturgeon 734S DER Battery — 19MW battery 🔋 project in Greenview No 16, AB (AESO). Proposed completion changed from June 30, 2026 to June 30, 2027

ALTAMONT MIDWAY LTD — 5MW wind 💨 project in Alameda, CA (CAISO). Proposed completion changed from April 27, 2025 to April 27, 2027

P2582 Woodcroft Reliability — project in Edmonton, AB (AESO). Proposed completion changed from March 30, 2028 to December 29, 2028

P3035 Aira Battery — battery 🔋 project in Cypress County, AB (AESO). Proposed completion changed from September 24, 2026 to November 30, 2027