OpenAI joins data center venture at former nuclear enrichment site in Pike County
OpenAI said it will join a multi-company data center venture in Pike County, Ohio, at the former Portsmouth Gaseous Diffusion uranium enrichment site. The planned six-year project includes SoftBank’s SB Energy, Nvidia and the U.S. Department of Energy. OpenAI expects about 8 GW of power use and an 800 MW data center by 2028, with closed-loop water and grid upgrades.
How this was made

The 30-second read
Why it matters
OpenAI’s stated 8 GW power usage and grid upgrade cost responsibility, plus closed-loop water cooling and planned public reporting, are new operational details that can affect project execution risk and local stakeholder scrutiny. Nvidia’s and SB Energy’s participation provides an AI infrastructure demand signal, but without disclosed contract economics.
Market read
Traders may use this as a sentiment and supply-chain read-through for AI infrastructure demand, while monitoring for later disclosures on power contracts, grid upgrade scope, and hardware supply terms.
What to watch
Grid upgrade timing, permitting, and the actual power procurement structure could dominate project economics more than the headline AI tenant commitment.
Background
The PORTS-Pike Technology Data Center is planned on the former Portsmouth Gaseous Diffusion Plant site, repurposing an ex-nuclear enrichment location for AI data-center development.
Ticker impact
Nvidia is named as a participant in the multi-company data center venture that will use about 8 GW of power.
Mild positive read-through for AI infrastructure demand, likely limited unless additional contract details emerge.
The article does not specify Nvidia’s commercial terms (hardware/software supply, revenue share), so the impact is indirect and sentiment-driven.
SB Energy, owned by SoftBank Group, is part of the venture at the former Portsmouth enrichment site.
Limited direct impact on SoftBank’s listed shares without disclosed economics or guidance.
The piece is about the venture and OpenAI’s commitments; it lacks SoftBank-specific financial disclosures.
Market effects
Reinforces the AI data-center build cycle and intensifies focus on power-grid upgrades and water-cooling constraints.
Highlights PJM grid upgrade needs and local water-use mitigation at an Ohio site, which could influence regional utility and permitting expectations.
Signals continued US AI infrastructure expansion using large power allocations, relevant to global AI supply chains and energy infrastructure planning.
Counterpoint
Because the article does not disclose Nvidia’s or SoftBank’s commercial terms, the read-through to near-term earnings is likely overstated.
Key entities
- companyOpenAI
Announced it will join the PORTS-Pike Technology Data Center venture and fund its own energy and infrastructure costs.
- companyNvidia
Named as a participant in the multi-company data center venture at the Pike County site.
- companySoftBank Group (SB Energy)
SB Energy, owned by SoftBank Group, is part of the venture.
- governmentU.S. Department of Energy
Named as a participant in the planned six-year construction project.
- locationPike County, Ohio
Site of the planned data center venture, with local concerns about power and water usage.


