A planned Southeast Idaho data center campus designed around behind-the-meter power generation has secured a firm natural gas supply agreement to support its initial development phase, marking another step forward for the proposed multi-hundred-megawatt project targeting AI and hyperscale computing demand.
CalEthos, Inc. and its subsidiary TerraVolt Infrastructure, Inc. have signed an agreement with a natural gas marketing company to supply fuel for a planned behind-the-meter power plant supporting the company’s proposed data center campus in Southeast Idaho.
Under the agreement, the supplier will deliver 55,000 MMBTU of natural gas per day to TerraVolt for onsite generation facilities that form part of the planned development. Developers plan to locate the campus along the Northwest Natural Gas Pipeline corridor and design it to support large-scale AI and cloud computing infrastructure.
According to the company, the initial phase of the development will deliver between 200MW and 240MW of power capacity for future data center customers. Company filings show the broader fuel supply arrangement could support additional expansion phases, with onsite generation capacity reaching several hundred megawatts over time.
Master-Planned Campus Combines Power, Fiber, and Ready-to-Build Sites
TerraVolt said the project is being developed as a master-planned data center campus integrating onsite power generation with pre-permitted building sites, utility infrastructure, and fiber connectivity. The company describes the model as a Physical Infrastructure-as-a-Service platform intended to accelerate deployment timelines for hyperscalers, neocloud providers, and other data center developers facing delays tied to traditional grid interconnections.
Joel Stone, chairman and chief executive officer of CalEthos, said the gas supply agreement would support the project’s initial development phase without placing additional strain on the local power grid or increasing electricity costs for local ratepayers.
The agreement also includes fuel management services intended to help TerraVolt manage power demand fluctuations as facilities are constructed and brought online.
The company has not disclosed the total projected investment value of the Southeast Idaho campus, a construction timeline, or potential anchor tenants for the project. Contractors and equipment suppliers for the planned onsite power infrastructure have also not been announced.
However, company filings show TerraVolt is advancing zoning, permitting, and environmental review activities for the proposed development, with construction-related approvals targeted in 2027.
The announcement comes as data center developers across the United States increasingly pursue dedicated onsite power strategies amid rising electricity demand from AI workloads and ongoing grid capacity constraints. Behind-the-meter natural gas generation has emerged as one approach developers are using to accelerate deployment schedules while securing long-term power reliability for large-scale computing campuses.
TerraVolt Southeast Idaho Data Center Campus — Factsheet
- Developer: TerraVolt Infrastructure, Inc., subsidiary of CalEthos, Inc.
- Project Type: Master-planned data center campus with behind-the-meter onsite power generation
- Location: Southeast Idaho, along the Northwest Natural Gas Pipeline corridor
- Primary Announcement: Execution of a firm natural gas supply agreement for the planned onsite power plant
- Natural Gas Supply Volume: 55,000 MMBTU per day
- Initial Planned Power Capacity: 200MW–240MW
- Potential Long-Term Expansion: Company filings indicate fuel arrangements may support several hundred megawatts of onsite generation capacity over time
- Power Strategy: Behind-the-meter natural gas-fired onsite generation intended to reduce dependence on traditional grid interconnections
- Target Customers: Hyperscalers, neocloud providers, and data center developers
Infrastructure Components Planned:
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- Onsite power plant
- Data center buildings
- Utility infrastructure
- Fiber connectivity
- Pre-permitted construction-ready sites
Project Delivery Model: Physical Infrastructure-as-a-Service (PIaaS)
Current Development Stage:
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- Fuel supply agreement executed
- Permitting and environmental review activities underway
- Zoning and land-use work progressing
Construction Approval Target: 2027
