Power technology firm ABB has extended its partnership with microgrid developer VoltaGrid to support the company’s data center offering.

The companies initially partnered in November, which saw ABB agree to supply VoltaGrid with 27 synchronous condensers with flywheels along with integrated automation, excitation, and power control housed in prefabricated eHouse units.

The new agreement will see ABB provide 35 additional synchronous condensers with flywheel technology and eHouses for major power generation projects globally for VoltaGrid. According to the companies, the new supply deal will permit Volta to significantly expand its data center power platform.

“VoltaGrid’s power platform is purpose-built to deliver large-scale power with exceptional dynamic performance and reliability for next-generation digital infrastructure,” said Nathan Ough, CEO of VoltaGrid. “By integrating ABB’s advanced grid stabilization technologies with our AI-optimized power systems, we are able to meet increasingly stringent transient performance requirements while accelerating deployment at gigawatt scale.”

VoltaGrid will pair the power equipment with its natural-gas-fueled microgrid generation systems. Volta launched its Qpac platform last year, in partnership with gas engine provider Jenbacher. The platform is a modular natural gas power system, with each reciprocating node generating up to 20MW of power.

VoltaGrid has signed several notable energy supply agreements with data center firms. In October, it signed its biggest contract to date with cloud giant Oracle for more than 2GW of capacity to power the company’s AI data centers.

Last February, the company partnered with Vantage Data Centers to deploy 1GW of off-grid natural gas generation across its North American portfolio.

Finally, in August 2024, it agreed to supply the Elon Musk-owned xAI Memphis data center with 14 mobile generators, each capable of providing 2.5MW, giving it an additional 35MW of power capacity.

ABB has also been significantly expanding its data center offering through a series of acquisitions. In February, the firm acquired Irish electrical engineering consultancy Premium Power to expand its advisory capabilities within the data center market.

Before this, the company acquired IPEC, a UK specialist in electrical diagnostics. In the same month, it acquired a minority stake in OctaiPipe, a UK-based AI firm focused on optimizing data center cooling systems.