US energy storage company TerraFlow Energy has opened its headquarters and battery manufacturing facility in Katy, Texas, producing long-duration batteries designed to keep data centres and critical infrastructure powered during grid outages for up to 10 hours, as reported by Covering Katy News.

Covering Katy News reported that the company unveiled its 100,000-square-foot Katy facility at a May 21 open house, with the site expected to produce enough batteries to generate 25 megawatts of power in 2026, scaling to 300 megawatts later in the year.

TerraFlow's battery technology operates differently from conventional backup power systems. Rather than remaining idle until grid failure, the batteries continuously pass power through the system from the grid into a data centre while simultaneously smoothing voltage spikes and surges that can damage equipment. In the event of a grid outage, the system maintains supply without interruption for up to 10 hours.

The reliability demands of data centres, which require near-continuous uptime to prevent data loss and financial damage, are a key driver of TerraFlow's product positioning in Texas, a market with a documented history of grid outages affecting homes, businesses and critical infrastructure.

Jon Parrella, CEO of TerraFlow, said: "What started as a vision for a different approach to energy storage is now taking shape in working systems, manufacturing capability, and partnerships that will help define the future of energy infrastructure."

TerraFlow has announced partnerships with Dell Technologies, Nvidia and Houston-based NOV Inc. Dell supplied a cluster of 1,200 graphics processors forming a test data centre environment, while NOV's Fiber Glass Systems unit signed an agreement to assist in designing the storage tanks the batteries require.

According to the Houston Business Journal, the company is planning two significantly larger manufacturing facilities, one at the Port of Victoria and another likely in or around Waller County, with a combined estimated investment of $1.2 billion (approximately €1.1 billion) and a target launch of 2028. Each facility would be approximately 20 times the size of the Katy plant.

TerraFlow is also deploying a separate 10MW battery system in Bellville, Texas, where it originally planned to build the Katy pilot plant before requiring additional space.

See the full report on TerraFlow Energy's Katy facility opening.