Zeo signs MoU for 280 MW solar plus long-duration storage at Utah data center hub

US-based solar and storage company Zeo Energy has announced it has signed a memorandum of understanding (MoU) with Creekstone Energy to develop approximately 280 MW of baseload power for a new AI-focused data center campus in Millard County, Utah, located some 280 kilometers southwest of Salt Lake City. 

The agreement, Zeo said, positions it to supply behind-the-meter solar generation with long-duration energy storage for Creekstone’s “Gigasite,” a multi-source power and data-infrastructure hub, during the data center infrastructure boom.

Creekstone began construction in December 2025 and plans to deliver more than 300 MW of gas-based power to data center clients at the Gigasite by mid-2027, including an announced “up to” 50 MW for Blue Sky AI, a previous agreement signed in August 2025.

Further plans from Creekstone will see it increase power production to multiple gigawatts, integrating clean-energy sources such as Zeo’s solar-plus-storage systems.

What storage?

Under the MoU, Zeo said it has begun a pre-feasibility study to determine the most efficient solar generation paired with thermal and chemical long-duration storage for the Gigasite. The agreement also outlines potential roles for Zeo in project financing, engineering services, and front-end design work. 

The announcement of the MoU doesn’t detail the exact type of storage to be considered as part of the MoU, though referred to it repeatedly as “long-duration”.

As a guide to what may be, in August 2025, Zeo Energy acquired concentrated solar power (CSP) tower specialist Heliogen, which may serve to combine solar PV with solar CSP for delivering around-the-clock power to the data center sector. Zeo is already working on several other projects that are also in planning and evaluation phases. The caption for the supplied photo from Zeo said “Nearby solar array in Millard County, Utah, similar to type contemplated for the Gigasite,” as a clue.

What they said:

“Since our acquisition of Heliogen, we have been actively seeking to apply our long-duration storage expertise to the unprecedented power demand in the data center space,” Zeo CEO Tim Bridgewater said. 

“Our MoU with Creekstone is a milestone in this effort, and we are in discussions with several other projects that we believe can benefit from our clean baseload power solutions.”

Ray Conley, CEO of Creekstone Energy, noted the urgency of power supply for data centers.

“At Creekstone, we plan to deliver over 600 MW of baseload power to our Gigasite customers in 2027 in Phase 1 of our project. Our collaboration with Zeo reflects the market urgency of using all available energy sources to rapidly provide baseload power. With solar power and Zeo’s long-duration energy storage solution, we plan to significantly expand the amount of clean power we offer our hyperscalers and artificial intelligence data center customers.”