ERock, Inc. (NYSE: EROC), a provider of utility-grade onsite power solutions, said on October 7, 2026, that it has signed a multi-year supply agreement with HD Construction Equipment, a subsidiary of Hyundai, covering high-efficiency natural gas engine long blocks for the company's RockBlock generator.

The deal runs from 2027 through 2028 and is designed to underpin higher production volumes as ERock works to meet large-scale orders from data centers, utilities, and other critical infrastructure operators.

Core Component for RockBlock Generators

The engine long blocks at the center of the agreement are the central building blocks of ERock's proprietary natural gas generators, engineered for the reliability and performance demanded in the hyperscale data center segment.

ERock said that by partnering with proven manufacturers for these components, it improves its capacity to turn customer commitments into delivered power systems quickly while preserving the quality and operational standards associated with its offering.

The company characterized the arrangement as securing the supply of its most foundational production input through 2028, a period during which assembly capacity is set to ramp significantly.

CEO Points to Long-Lead Component Timing

John Carrington, ERock's Chief Executive Officer, said the timing of component procurement is central to meeting customer delivery schedules.

"Long block supply is the foundation of our production, and this agreement secures supply through 2028 as we ramp assembly capacity," he said.

"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. We view this agreement as a strong foundation to build on as our needs grow beyond 2028."

Backlog and Installed Base Frame the Ramp

The supply deal lands amid what ERock describes as sustained commercial momentum. The company pointed to major data center contracts with customers including Meta and Microsoft, a fleet of more than 400 operational sites, and an installed base of roughly 1.1 GW.

Its contracted backlog reached USD 1.7 billion as of June 30, 2026, with those commitments pushing production requirements into 2028.

ERock also cited a strong balance sheet that gives it financial flexibility to lock in long-lead components and fund the manufacturing ramp.

Hyperscale Spending Underpins Demand

The agreement reflects broader conditions in the power generation market for data centers.

Global data center power demand is accelerating as hyperscale operators add capacity for AI infrastructure and advanced computing workloads.

Industry estimates cited in the announcement project worldwide data center capital expenditures to surpass USD 3 trillion by 2030, a trajectory the company said will sustain demand for reliable power generation solutions.

Hyundai Subsidiary Broadens North American Reach

On the supplier side, the contract extends HD Construction Equipment's supply of critical components into North America, which the two companies describe as the world's largest and fastest-growing data center market.

According to the announcement, the deal also demonstrates the competitiveness of HD Construction Equipment's engine long block technology in the hyperscale data center segment, where reliability is a critical requirement.

"Moving forward, we will continue to strengthen our position in the global data center and distributed energy markets," the company said, calling the order a meaningful achievement that validates its engine long block technology in the rapidly emerging data center power market.

Delivery Timelines for Mission-Critical Loads

ERock framed the agreement with an established manufacturer as reinforcing its standing as a trusted partner able to deliver large-scale, mission-critical power solutions on compressed timelines.

The company said the deal strengthens its production roadmap and supports rapid deployment across data center and critical infrastructure markets.