The data center generator market is expected to grow at a CAGR of 2.7% during the forecast period, from USD 8.57 billion in 2026 to USD 9.79 billion in 2031. The market is expanding steadily, driven by rapid hyperscale data center development, growing AI and cloud workloads, and increasing demand for uninterrupted backup power systems. Rising investments in colocation and edge data centers are accelerating the adoption of high-capacity diesel, natural gas, and hybrid generators to ensure continuous operations and minimize downtime risks. Increasing concerns over grid instability and strict uptime requirements for Tier III and Tier IV facilities are further supporting market growth. The growing power density of AI and high-performance computing (HPC) environments is also driving demand for scalable and efficient generator infrastructure. North America leads the market due to strong hyperscale investments, while the Asia Pacific is emerging as a major growth region supported by expanding digital infrastructure across India, China, and Southeast Asia.
Providers are increasingly focusing on high-capacity generator systems integrated with remote monitoring, predictive maintenance, and modular deployment capabilities to support hyperscale and AI-driven data center environments. Vendors are also emphasizing fuel-flexible and lower-emission technologies, including natural gas, hybrid, and hydrogen-ready systems, to align with sustainability and carbon reduction initiatives. In addition, companies are strengthening digital power management platforms, expanding regional manufacturing capabilities, and enhancing after-sales services to improve operational reliability, scalability, and long-term support for large-scale data center deployments.
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Some of the major players in the data center generators market include Caterpillar (US), Cummins (US), Rolls-Royce (UK), Rehlko (US), and Mitsubishi (Japan). These companies provide high-capacity diesel, gas, and hybrid generator systems designed to support hyperscale, colocation, and enterprise data centers. Their solutions integrate advanced monitoring, predictive maintenance, modular deployment, and fuel-flexible technologies to ensure continuous power availability for AI, cloud, and high-performance computing (HPC) workloads. By enhancing power reliability, operational efficiency, and uptime, these companies help data center operators manage increasing power demands while supporting scalable and sustainable digital infrastructure development.
In January 2026, Caterpillar, American Intelligence & Power Corporation, and Boyd CAT formed a strategic alliance to support the Monarch Compute Campus, an AI-focused hyperscale data center project in West Virginia. Under the agreement, AIP Corp ordered 2 GW of Caterpillar G3516 fast-response natural gas generator sets, with deliveries scheduled from September 2026 through August 2027 and power delivery targeted in 2027. The project combined onsite natural gas generation, battery energy storage systems, and microgrid infrastructure to support high-density AI workloads and long-term expansion plans of up to 8 GW capacity.
In February 2025, Rolls-Royce Holdings launched upgraded MTU Series 1600 Diesel Generator Sets for the 50 Hz market with up to 40% higher power output. The 12V1600 Gx1 platform delivers 590–1,000 kVA and is designed for data centers, edge computing, and hybrid power applications. The gensets support Tier III and Tier IV data center requirements, offer up to 100% load factors, and are compatible with HVO fuel for up to 90% CO2 reduction. Rolls-Royce also secured early deployment orders across Europe and the US for mission-critical backup power projects.
Caterpillar
Caterpillar is a global manufacturer of construction and mining equipment, diesel and natural gas engines, industrial turbines, and power generation systems. The company operates through segments including Construction Industries, Resource Industries, and Power & Energy, delivering products and services across infrastructure, mining, oil & gas, transportation, utilities, and industrial sectors. In the power solutions business, Caterpillar provides diesel and gas generator sets, microgrid systems, switchgear, energy storage solutions, and lifecycle support services through its Cat® Electric Power division and global dealer network. The company also offers remote asset monitoring, predictive maintenance, financing, and long-term service agreements to support mission-critical operations.
In the data center generators market, Caterpillar supplies backup and prime power systems for hyperscale, colocation, enterprise, and AI-focused facilities. Its portfolio includes high-capacity diesel generators such as the C175 series and natural gas platforms, including the G3516 and G3520K generator sets. The company has expanded into integrated onsite power infrastructure by combining generator systems with battery energy storage, microgrids, combined cooling, heat, and power (CCHP), and advanced control technologies for large-scale AI and high-density data center deployments.
Cummins
Cummins is a US-based power solutions company engaged in the design, manufacturing, distribution, and servicing of engines, power systems, and related technologies for industrial, commercial, and infrastructure applications. The company operates through five major business segments: Engine, Components, Distribution, Power Systems, and Accelera. Its product portfolio includes diesel and natural gas engines, generator sets, powertrain systems, alternators, turbochargers, fuel systems, batteries, fuel cells, electrolyzers, and hydrogen technologies. Cummins serves industries such as data centers, mining, construction, transportation, oil & gas, marine, healthcare, utilities, and defense.
The company has a global manufacturing, distribution, and service network spanning more than 190 countries and territories. In the power generation market, Cummins supplies standby and prime power generator systems for hyperscale, colocation, enterprise, and industrial facilities. Through Accelera, the company is also expanding into zero-emission technologies, including battery-electric systems, hydrogen production, and fuel cell solutions. Cummins supports customers through company-owned distributors, dealers, and service partners across North America, Europe, the Asia Pacific, the Middle East, Latin America, and Africa.
Market Ranking
In 2025, the data center generators market remained highly competitive, led by major power solution providers such as Caterpillar, Cummins, Rolls-Royce, Rehlko, and Mitsubishi, with these companies collectively accounting for a significant share of global deployments across hyperscale, colocation, and enterprise data centers. The market is characterized by intense competition driven by increasing AI workloads, rising demand for reliable backup power, and the expansion of hyperscale facilities worldwide. Caterpillar strengthened its position through high-capacity diesel and gas generator portfolios integrated with advanced monitoring and microgrid capabilities. Cummins continued expanding its footprint with scalable backup power systems, sustainable fuel compatibility, and strong global service networks. Rolls-Royce, through its MTU Solutions, gained traction in high-density AI and hyperscale environments requiring resilient and efficient power infrastructure. Rehlko enhanced its market presence with mission-critical backup systems and customized power solutions for edge and colocation facilities, while Mitsubishi focused on large-scale high-efficiency generation systems designed for continuous uptime and energy optimization. Competitive differentiation across the market increasingly centers on fuel flexibility, rapid deployment capabilities, AI-ready power infrastructure, sustainability initiatives, remote monitoring, and long-term service reliability to support next-generation data center operations.
Related Reports:
Data Center Generators Market by Type (Diesel Generator, Natural Gas Generator, Bi-fuel Generator, Others), Power Rating (Up to 1 MW, 1 MW to 3 MW, above 3 MW), End User, and Region – Global Forecast to 2031
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