German Manufacturer 2G Energy Lands 275 MW U.S. Data Center Contract Through Energy Vault Partnership

2G Energy AG's facility in Heek, Germany, will soon be producing containerized power systems destined for American artificial intelligence infrastructure, following a 275-megawatt supply agreement announced on September 23, 2026.

The customer is Energy Vault Holdings Inc., a NYSE-listed energy infrastructure company, which placed the order to underpin its growing portfolio of power solutions targeting AI and hyperscale data center operators across the United States.

Delivery windows run from the fourth quarter of 2027 through the third quarter of 2028, in line with current project planning schedules.

Manufacturing Scale Behind the Agreement

The Heek facility, where 2G Energy manufactures, pre-assembles, and tests its systems before shipment, is the operational backbone of this contract. The company is actively expanding that hub to keep pace with the volume of orders its data center business is generating. A new production hall at Heek came online earlier in 2026, and a second production site is currently under development with a targeted completion date at the end of 2027.

2G's product range covers combined heat and power systems with electrical outputs between 20 kilowatts and 4,500 kilowatts, capable of running on natural gas, biogas, hydrogen, and other fuels.

The company's broader operations span decentralized energy supply, large-scale heat pumps, peaking power systems, digital grid integration, and service and maintenance. The units destined for Energy Vault will be shipped from Heek as plug-and-play, containerized systems, pre-tested and ready for on-site commissioning in the United States.

The containerized format is intended to enable standardized manufacturing, efficient transport, and modular deployment at large-scale AI campuses.

How the Systems Fit Into Energy Vault's Architecture

Energy Vault describes itself as a technology-agnostic energy infrastructure company that develops, owns, and operates integrated power solutions serving utilities, independent power producers, industrial customers, and the AI and data center sector. Its platform brings together on-site generation, battery energy storage, power conversion equipment, and its proprietary VaultOS energy management software.

Within that architecture, the 2G systems will function as the dispatchable generation layer. VaultOS coordinates generation and storage in real time, supporting power quality, resilience, and the rapidly shifting compute loads that characterize AI workloads.

Battery energy storage complements the dispatchable generation to cover dynamic load swings and maintain high availability under demanding operating conditions, including elevated ambient temperatures.

The order is specifically tied to two product offerings Energy Vault is bringing to market: powered land and powered shell solutions aimed at AI and data center customers, including hyperscalers.

Why On-Site Generation Has Become Critical

The transaction reflects a structural tension that has emerged across the data center industry: the pace at which hyperscale AI campuses require power frequently outstrips what utility grid interconnections can deliver on acceptable timelines.

According to 2G Energy, securing sufficient and reliable electrical power has become a critical infrastructure challenge for data center operators and developers. On-site generation is increasingly being deployed to complement grid infrastructure where capacity is constrained or where interconnection queues make utility-supplied power unavailable within the development timelines that AI campuses require.

Marco Terruzzin, Chief Revenue Officer of Energy Vault, said that AI infrastructure customers need firm, always-on power and that conventional grid interconnections frequently cannot deliver it on the required schedule.

He described the pairing of 2G's modular generation systems with Energy Vault's battery storage and VaultOS controls as a repeatable architecture that can bring power online faster, respond in real time to dynamic AI workloads, and eventually integrate grid power and renewables as those resources become accessible.

Terruzzin pointed to 2G's manufacturing scale and lifecycle service capabilities as the determining factors in choosing the German company as a long-term partner for the platform's expansion in the United States and internationally.

Service and Lifecycle Support as Part of the Deal

The agreement extends well beyond initial equipment supply. Under the terms of the order, 2G Energy will provide long-term service support for the generation fleet across its operational life, with the stated objective of sustaining the availability and performance levels that mission-critical data center infrastructure demands.

Pablo Hofelich, CEO of 2G Energy AG, said the global data center market is developing dynamically, with growing power demand, limited grid capacity, and constraints on available infrastructure all converging to increase the relevance of decentralized and alternative power supply solutions.

He characterized the sector as a long-term growth market for 2G and said the company's role is not confined to delivering hardware. "The combination of high-performance power generation, a high degree of system integration, and consistently high availability is one of 2G's proven strengths," Hofelich said.

He added that the 275 MW order demonstrates that 2G's technology and its approach to standardized, high-performance, and rapidly deployable power generation align with what the data center market requires, and that long-term service is central to the value the company intends to deliver to Energy Vault and its customers.