Is a Data Center Coming

Ada County, ID

Rhea Energy Data Center Campus (Blacks Creek BLM Land)

Rhea Energy. Filed. 600 MW.

Rhea Energy, a subsidiary of Nevada based Arevia Power, has applied to the Bureau of Land Management's Four Rivers Field Office to build a roughly 4 million square foot, 600 megawatt data center on up to 3,700 acres of public land near Blacks Creek Reservoir south of Kuna, along the Ada and Elmore county line. The plan includes an on site natural gas power plant, rated at about 450 megawatts, to supplement grid power, plus a possible future solar farm near Twin Falls. After the BLM found the initial fall 2025 application incomplete, Rhea Data resubmitted a revised application in spring 2026, and an environmental review and public scoping process are now underway, with the Idaho chapter of the Sierra Club and local residents raising concerns about water, energy demand, and the reservoir's bird habitat.

Status
Filed
Operator
Rhea Energy
Applicant on record
Rhea Energy
Location
Kuna, Ada County, ID
Size
600 MW, 3700 acres, 4,000,000 sq ft
Cooling
Not reported
Utility
Idaho Power
First reported
2025
Last updated
September 24, 2026

What happens next

Still to come: public hearings, a rezoning or permit vote, and a utility interconnection agreement.

Sources

What it would mean nearby

The cooling design has not been reported. If it uses evaporative cooling, a 600 MW facility would draw roughly 1.9 million to 6.8 million gallons of water a day, about what 21,900 households use.

For how far this is from your own address, check it here. For a noise, water, and power bill estimate for one address, see the address report.

History

September 25, 2026

Added as filed

Other tracked projects within 25 miles

Common questions

Where is the Rhea Energy data center?

It is in Kuna, Ada County, ID.

Has the Rhea Energy data center been approved?

Not yet. An application has been filed and has not been decided.

How big is the Rhea Energy data center?

Reported size: 600 MW, 3700 acres, 4,000,000 square feet.

Is it near you?

Corrections and tips: use the address in the footer. We link every claim to its source.