The global diesel generator market size was estimated at USD 17.74 billion in 2024 and is projected to reach USD 30.75 billion by 2030, expanding at a CAGR of 9.7% from 2025 to 2030. This growth is strongly supported by the widening gap between rising global energy demand and the available supply. Key contributors to this surge in power demand include continuous population growth, large-scale infrastructure development, and rapid industrialization across emerging economies.

Diesel generators continue to be widely preferred due to their various advantages. Their low operating costs, high fuel efficiency, and reliable performance make them indispensable in regions where access to stable electricity remains limited. These characteristics have made them particularly popular in developing regions, especially across the Asia Pacific, where power shortages and grid instability are more prominent.

However, despite their advantages, diesel generators also present notable challenges. They contribute to noise pollution and release harmful emissions, which raise environmental and health concerns. As global focus shifts toward cleaner and more sustainable energy sources, such drawbacks pose potential constraints to long-term adoption. Supporting this transition, the World Nuclear Association has projected that global electricity demand is likely to double from current levels. Similarly, the U.S. Department of Energy anticipates that solar energy will eventually emerge as the most abundant and accessible energy source.

Key Market Trends & Insights:

• Asia Pacific dominated the diesel generator market, accounting for a 30.00% revenue share in 2024. This strong regional position reflects the rapid industrial growth, expanding infrastructure projects, and rising electricity consumption across developing economies.

• Within the region, China emerged as the leading market for diesel generators in 2024 and is expected to maintain its dominant position throughout the forecast period. The country’s large-scale manufacturing sector, continuous urban development, and increasing need for backup power solutions contribute significantly to its leadership role.

• In terms of power rating, the medium power gensets segment is projected to experience substantial expansion and is anticipated to grow at a CAGR of 12.8% over the forecast period. This growth can be attributed to the rising demand from industries, commercial facilities, and infrastructure projects requiring reliable mid-range power solutions.

• By application, the commercial segment held the largest revenue share of over 45% in 2024. The segment’s dominance is driven by the widespread use of diesel generators in commercial buildings, retail centers, telecom infrastructure, data centers, and healthcare facilities, where uninterrupted power supply is essential.

Order a free sample PDF of the Diesel Generator Market Intelligence Study, published by Grand View Research.

Market Size & Forecast:

• 2024 Market Size: USD 17.74 Billion

• 2030 Projected Market Size: USD 30.75 Billion

• CAGR (2025-2030): 9.7%

• Asia Pacific: Largest market in 2024

Key Companies & Market Share Insights:

Key companies operating in the diesel generator market are actively implementing a mix of organic and inorganic growth strategies to strengthen and expand their market presence. These strategies include mergers and acquisitions, new product launches, capacity expansions, and joint ventures, all aimed at enhancing their competitive position and catering to the rising demand for reliable power solutions.

In October 2024, the French power company Baudouin introduced a new range of diesel generator sets specifically designed for data centers. These advanced solutions deliver power outputs ranging from 2000 kVA to 5250 kVA and are equipped with Baudouin’s M33 and M55 series engines. The launch reflects the company’s focus on addressing the growing need for high-capacity, integrated power systems within the rapidly expanding data center industry.

In April 2025, Lakshya Powertech secured a significant ₹11.17 crore order from Powerica. The contract includes the supply and installation of 8 × 2250 KVA diesel generator sets, with the project scheduled for completion within a 6–8 month timeframe. This order highlights the company’s increasing role in major power infrastructure projects.

In May 2023, Cummins, a well-established manufacturer of engines and power generation equipment, launched an innovative diesel generator set powered by the B45 engine. This 4.5-liter, four-cylinder diesel engine is specifically engineered for power generation applications. The newly introduced generator set is designed to deliver dependable power across a wide range of sectors, including construction, rental services, and prime power applications, reinforcing Cummins’ commitment to technological advancement.

In August 2022, Caterpillar expanded its standby power portfolio by launching three diesel generators with capacities ranging from 20 to 30 kilowatts (KW) for the North American market. These generator sets, powered by the Cat C2.2 engine, are tailored for small industrial, telecommunications, and commercial environments. They comply with U.S. EPA emergency emission standards and meet essential industry safety certifications. Additional benefits include strong performance, a compact design, ease of parts availability, and optional enclosure configurations, making them suitable for diverse end-use settings.

Key Players

• AKSA Power Generation Company

• Atlas Copco AB

• Caterpillar

• Cummins Inc.

• Doosan Portable Power

• Generac Power System Inc.

• Honda India Power Products Ltd.

• Kohler Co.

• Rolls-Royce plc

• Wartsila Corporation

Explore Horizon Databook – The world's most expansive market intelligence platform developed by Grand View Research.

Conclusion:

The diesel generator market is expected to expand steadily, supported by the rising need for dependable backup and continuous power across commercial, industrial, and residential sectors. Growing infrastructure activity, rapid industrialization, and increasing power demand in emerging economies further strengthen market prospects. Asia Pacific remains a key growth region due to frequent power shortages and increasing energy requirements. Although diesel gensets continue to be widely used, the market faces challenges from stricter emission regulations and the global shift toward cleaner energy sources.