Global Data Center Generator Market Size, Share, Trends, and Forecast 2026-2031
September 29, 20264 Mins read6
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AI and hyperscale growth boosts demand, while BESS-integrated microgrids and alternative fuels improve resilience, speed deployment, reduce diesel reliance and support compliance
The global data center generator market was valued at USD 13.14 billion in 2025 and is projected to reach USD 29.47 billion by 2031, growing at a CAGR of 14.41%. Installed power capacity is expected to reach 28,307 MW by 2031 as data center operators invest in resilient backup and on-site generation infrastructure to support cloud computing, artificial intelligence, high-performance computing, and other mission-critical workloads.
Market Growth Drivers
Business continuity and disaster recovery remain major priorities for data center operators. Generators are central to power redundancy strategies, helping facilities maintain operations during utility failures, natural disasters, grid instability, and other emergencies. Investments in dual utility feeds, multiple fuel storage systems, and N+N or 2N generator configurations are increasing across APAC, Europe, the Middle East, and the Americas.
The rapid construction of hyperscale and AI data centers is also accelerating demand for larger, faster, and more efficient generator systems. AI clusters require substantial and uninterrupted power, while utility connection delays are encouraging operators to deploy on-site generation and microgrids. In 2025, Baudouin introduced its 20M61 data center generator, delivering up to 6,250 kVA for hyperscale and AI-driven facilities.
Key Data Center Generator Market Trends
Generator integration with BESS and microgrids is becoming a major industry trend. These architectures improve resilience, support faster data center deployment, strengthen grid flexibility, and reduce dependence on diesel-only backup systems. Crusoe and Redwood Energy launched a solar and repurposed EV battery microgrid for modular AI data centers, while Keppel DC REIT uses BESS, UPS, and standby diesel generators at its Dublin facilities.
Alternative fuel adoption is also expanding as operators address emissions targets, regulatory requirements, and energy security. HVO is recording particularly strong demand because it can be deployed in many existing diesel generator systems with minimal modifications. The HVO fuel segment is forecast to register the fastest CAGR of 30.26% during the forecast period, supported by biofuel policies and sustainability initiatives in markets including Germany.
Natural gas generation is gaining momentum for behind-the-meter and off-grid data center projects. In June 2026, Cummins partnered with Circe Energy to supply natural gas generator sets for a behind-the-meter microgrid supporting an HPC data center in Texas, with deliveries scheduled through 2030.
Recent Market Developments
In April 2026, Rehlko secured an additional 1.7 GW of backup power orders from hyperscale data center customers, strengthening its role in global AI and cloud infrastructure development.
In October 2025, Rolls-Royce launched the mtu Series 4000 L64 gas generator for data centers, offering fast deployment and lower emissions than diesel systems.
In October 2024, Baudouin introduced diesel generators with outputs ranging from 200 kVA to 5,250 kVA and outlined plans for the 20M55 genset.
In 2026, Wartsila received an order for 40 34SG gas engines with a combined capacity of 412 MW for an off-grid hyperscale data center project in Ohio.
In January 2026, American Intelligence & Power partnered with Caterpillar and Boyd CAT for the Monarch Compute Campus in West Virginia, ordering 2 GW of fast-response natural gas generators integrated with BESS.
Market Segmentation Insights
Generators with capacities from 1.5 MW to 3 MW held approximately 50% of the global data center generator market. These systems are widely deployed in facilities with power requirements between 3 MW and 5 MW and commonly support critical IT and cooling infrastructure. Their compatibility with advanced monitoring, noise reduction, and redundant configurations supports continued adoption.
By tier standard, Tier III data centers accounted for the largest market share in 2025. These facilities generally use generator sets ranging from 1.5 MW to more than 3 MW and maintain at least N+1 redundancy. Tier III operators are also incorporating lower-emission fuels and renewable energy technologies to meet sustainability requirements.
Principal market segments include:
System capacity: 0-1.5 MW, 1.5-3 MW, and >=3 MW
System: DRUPS systems, diesel, gas & bi-fuel generators, HVO fuel, and fuel cells
Tier standards: Tier I & II, Tier III, and Tier IV
Regional Market Outlook
North America remains a leading data center generator market, supported by extensive cloud, AI, colocation, and hyperscale development. The US benefits from strong IT and electrical infrastructure, while Canada is attracting large off-grid projects. In January 2026, Synapse Data Center Inc. proposed a 1 GW campus in Alberta featuring ten 100 MW buildings powered by a closed-cycle natural gas system.
Europe continues to invest in resilient and sustainable data center power. The UK, Germany, the Netherlands, Ireland, and the Nordic countries are adopting HVO, BESS, renewable generation, and waste-heat recovery. In June 2026, Era4 announced plans for a landfill gas-powered data center in Canterbury, while Stadtwerke Lubeck opened a facility incorporating solar generation and waste-heat recovery.
APAC growth is being driven by investments in China, India, Japan, Australia, South Korea, and Southeast Asia. In December 2025, Microsoft announced plans to invest approximately USD 17.5 billion in Indian AI infrastructure over four years. China also remains a major market through continued investment by cloud, internet, telecommunications, and colocation providers.
The Middle East and Africa are expanding through hyperscale investment, digitalization policies, and renewable energy initiatives. The UAE is a leading regional hub, with proposed projects including three hyperscale campuses offering AI computing capacity from 750 MW to 1.28 GW. South Africa is shifting its energy mix toward wind and solar, while Nigeria’s digital economy policies are encouraging data center development.
Market Restraints
Stringent emissions standards and environmental compliance requirements are increasing costs for generator manufacturers and data center operators. Regulations across the EU, US, Ireland, Singapore, the UK, and Australia include tighter permitting, emissions reporting, and operating-hour limits for diesel-powered systems.
Highly reliable electricity grids can also limit generator demand. Norway and Sweden benefit from stable, low-emission power systems supported by hydropower, nuclear energy, and wind capacity, reducing generator operation to contingency scenarios.
Competitive Landscape
The global data center generator market includes:
Competition is increasingly centered on high-capacity systems, alternative fuels, hydrogen-capable technologies, fast-response natural gas generation, BESS integration, emissions performance, and solutions engineered for AI and hyperscale data center environments.
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