Who owns Grid Growth Ventures, LLC

Grid Growth Ventures, LLC - Profile

Grid Growth Ventures, LLC is an American electric transmission development company formed by Transource Energy, itself a partnership of American Electric Power and Evergy, together with FirstEnergy Transmission, under an amended and restated operating agreement dated 13 February 2026. It exists to build and own high voltage transmission in the PJM region, holding project level subsidiaries such as Grid Growth Ohio, and each partner brings existing transmission development, siting and operating capability rather than a new operating business. Its first project, approved by the PJM Board of Managers on 16 February 2026 through the 2025 Regional Transmission Expansion Plan open window, is roughly 300 miles of 765 kilovolt and 345 kilovolt line plus substation upgrades in central Ohio, priced at about 1.1 billion dollars and driven by data centre, manufacturing and electric vehicle load growth around Columbus, with service expected by 2032.

The disclosed stakes

One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.

Where each figure comes from

A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.

• American Electric Power Company, Inc.. The Q2 FY2026 10-Q glossary states Grid Growth Ventures 'is 43.25% owned by AEP' directly. Formed in 2025 by Transource Energy and First Energy Transmission, LLC to bid into PJM's 2025 Regional Transmission Expansion Plan; in February 2026 PJM selected its proposed projects, estimated to cost approximately $1.2 billion, of which the 10-Q states 'AEP's share of this investment was estimated to be $600 million' (a future construction-funding estimate, not a current carrying value). No carrying value for this equity interest is disclosed. source
• FirstEnergy Corp., as of 30 Jun 2026. Held through FET, so recorded at FET's own 50% stake per this project's convention. FET and Transource formed Grid Growth Ventures, LLC on 29 Sept 2025 and entered the Grid Growth Operating Agreement on 13 Feb 2026 for PJM-awarded transmission projects (PJM awarded a project on 12 Feb 2026 estimated at about $1 billion, with FET's share estimated at about $448 million). The 10-Q states: 'FET's ownership interest in Grid Growth is subject to the equity method of accounting. As of June 30, 2026, and December 31, 2025, there was no carrying value of the investment on the FirstEnergy Consolidated Balance Sheets,' so value_usd is a filed zero, not a null gap. Grid Growth is in turn the sole owner of Grid Growth Ohio, LLC and owns an 80% interest in Grid Growth EHV Holdings, LLC (Transource holds the remaining 20%); that sub-tier stake is not separately sized or recorded as its own row here because it is two levels removed from FirstEnergy and immaterial per the same disclosure. source