ERock, HD Construction Equipment sign long block supply agreement

ERock, a manufacturer of utility-grade onsite power solutions, and HD Construction Equipment, a subsidiary of Hyundai, have signed a multi-year supply agreement for high-efficiency engine long blocks for ERock’s RockBlock natural gas generator. The agreement spans 2027 through 2028.

ERock’s multi-year supply agreement with HD Construction Equipment will support increased production and rapid deployment of ERock power solutions. (Photo: ERock)

The agreement will support increased production while enhancing ERock’s ability to fulfill large-scale customer orders for data centers, utilities and other critical infrastructure operators, the company stated.

“Long block supply is the foundation of our production and this agreement secures supply through 2028 as we ramp assembly capacity,” said John Carrington, CEO of ERock. “With production commitments extending into early 2028, delivering on schedule for our customers depends on securing the long-lead components, and this agreement directly supports that.”

This announcement comes during a period of sustained commercial momentum for ERock, the company noted, including major data center contracts with the likes of Meta and Microsoft, more than 400 operational sites and approximately 1.1 GW of installed base. Its $1.7 billion contracted backlog as of June 30, 2026, extends production requirements into 2028, and the company’s balance sheet provides the financial flexibility to secure long-lead components and fund its manufacturing ramp.

The agreement also marks an expansion of HD Construction Equipment supplying critical components to North America.

“This order is a meaningful achievement that validates our engine long block technology in the rapidly emerging data center power market,” an HD Construction Equipment representative stated. “Moving forward, we will continue to strengthen our position in the global data center and distributed energy markets.”