Energy Vault signs deal to deploy 1.25 GW of integrated power infrastructure for hyperscaler AI data center, with Caterpillar gensets in the mix

Energy Vault Holdings said it has executed a strategic commercial agreement to deploy 1.25 gigawatts (GW) of integrated power infrastructure for a hyperscaler artificial-intelligence data center. The company did not, in the announcement captured by the market posting, identify the hyperscaler customer, the site location, or the commercial terms of the deal.

In the same announcement, the market post also described the power-generation execution partner as a leading power generation EPC (engineering, procurement and construction) that will deploy Caterpillar generator sets, known as gensets, as part of the project. A “genset” is a packaged set that typically combines an engine and generator to produce electricity on-site, often used to improve reliability for mission-critical facilities like data centers.

The 1.25 GW scale places the project in the category of large, utility-like power builds for high-compute campuses. For hyperscaler data centers, the practical challenge is not just meeting peak demand, but doing so with redundancy, fast backup power, and scalable expansion capacity as AI workloads grow. Integrated power infrastructure generally bundles generation, power conditioning, storage or balancing, and controls so the facility can manage load and grid interface more predictably.

Energy Vault positions itself as an infrastructure provider focused on sustainability and grid resilience. In broad terms, its technology is associated with long-duration power support rather than short-duration battery-only solutions, which can be a differentiator when customers want longer runway for uptime during grid disturbances or planned outages. The announcement did not specify which components in the 1.25 GW package correspond to Energy Vault’s offerings, but it did frame the agreement as “integrated power infrastructure,” suggesting a systems-level scope rather than a single equipment order.

Caterpillar’s involvement, as described in the market posting, centers on supplying generator sets through the project’s EPC execution chain. While generator sets are standard in data centers for redundancy, the linkage in the announcement highlights how traditional industrial equipment suppliers are being pulled into the broader AI data center buildout, not only for diesel or gas generation but as a component in larger reliability architectures.

The announcement captured by the market posting did not disclose timing, expected delivery milestones, contract value, or whether the agreement is binding on all phases of the build. It also did not provide specifics on performance targets, fuel type for the gensets, or any financing or customer capacity commitments. Those omissions matter because project schedules and contract economics are often the key drivers of how such infrastructure announcements translate into near-term financial impact.

Looking ahead, investors and industry watchers will likely focus on whether Energy Vault follows with additional disclosures on project milestones, revenue recognition timing, and the identity and capabilities of the EPC and hyperscaler customer. For Caterpillar, attention would center on whether the genset deployment becomes part of a larger, repeatable pattern in AI data center power projects and whether customer demand for reliability infrastructure continues to expand.