Poolside Project Horizon Data Center Campus — TX · Ask the Grid

Power and grid

Capacity	Basis	Status	Scope	As of
1,200 MW	Capacity basis unspecified	Proposed	Exact Asset	—
Latest investor-disclosed campus plan, subject to financing and execution
200 MW	Capacity basis unspecified	Target · target 2027	Exact Asset	—
Initial building within the campus plan; first operations targeted for late 2027
7,000+ MW	Capacity basis unspecified	Reported	Exact Asset	—
Identified longer-term expansion potential
400 MW	Capacity basis unspecified	Reported	Exact Asset	—
Project Horizon described in an August 2026 company release
Up to 2,000 MW	Capacity basis unspecified	Proposed	Exact Asset	—
Original multi-phase campus potential in the tax-abatement notice
576 MW	Onsite Generation	Reported	Campus	—
Dedicated power supply: Reported gas-fired facility to power the campus
360 MW	Onsite Generation	Proposed	Campus	—
Dedicated power supply: Additional generation under consideration, years away

ISO / RTO: ERCOT
Storage: Battery storage planned for reliability and load balancing
Power sources: Natural gas initially, behind the meter, with a public-grid connection for backup

Poolside Project Horizon Data Center Campus