Aftermarket Natural Gas Generator Market Size, Share, Trends, Growth and Forecast 2030

Report Description

Forecast Period	2026-2030
Market Size (2024)	USD 12.18 Billion
CAGR (2025-2030)	7.75%
Fastest Growing Segment	Commercial
Largest Market	North America
Market Size (2030)	USD 19.06 Billion

Market Overview

The Global Aftermarket Natural Gas Generator Market, valued at USD 12.18 Billion in 2024, is projected to experience a CAGR of 7.75% to reach USD 19.06 Billion by 2030. The global aftermarket natural gas generator market encompasses the provision of products and services dedicated to the maintenance, repair, upgrading, and enhancement of natural gas-powered generators after their initial installation. Key market drivers supporting this growth include the escalating global demand for reliable power amid increasing grid instability, coupled with stringent environmental regulations that promote cleaner-burning natural gas alternatives. Additionally, the necessity for businesses to maximize asset lifespan and ensure uninterrupted operation through regular servicing and component upgrades significantly drives demand.

The growing utilization of natural gas for power generation underscores this market. According to the U. S. Energy Information Administration, U. S. natural gas-fired power plants generated over 7 million megawatthours of electricity on August 2, 2024, marking a substantial reliance on this energy source. However, a significant challenge to market expansion involves the inherent vulnerability of natural gas pipeline infrastructure to natural disasters, which can disrupt fuel supply and consequently impact generator operational continuity.

Key Market Drivers

The increasing demand for reliable backup power is a significant market driver. Global power grids increasingly contend with disruptions from extreme weather, cyber threats, and aging infrastructure, necessitating dependable alternative power solutions. Businesses and critical facilities face considerable financial losses and operational setbacks from even brief power interruptions. This dynamic accelerates investment in robust natural gas generator systems, known for their rapid start-up and consistent performance. According to Opengear research published in June 2023, 91% of global businesses experienced at least one network outage quarterly, with many US organizations reporting losses between $2,501 and $5,000 per minute of disruption. This continuous requirement for uninterrupted operations directly sustains aftermarket demand for generator maintenance and upgrades.

Aging generator infrastructure requiring aftermarket services forms another crucial driver. A substantial segment of the global natural gas generator fleet is reaching critical operational points, necessitating comprehensive overhauls, component replacements, or efficiency enhancements to extend asset life and sustain performance. This predictable lifecycle generates recurring demand for specialized parts, skilled technicians, and tailored maintenance contracts. For example, according to GE Vernova, in January 2025, generators may require a major overhaul, such as a rewind, after approximately 20-25 years of service, highlighting this systematic need for aftermarket intervention. This foundational demand is amplified by the broader growth in natural gas utilization. According to the International Energy Agency's Global Energy Review 2025, published in March 2025, global natural gas demand surged by 115 billion cubic meters (bcm), or 2.7%, in 2024, driven by higher power consumption.

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Key Market Challenges

The inherent vulnerability of natural gas pipeline infrastructure to natural disasters presents a significant market challenge. Such vulnerabilities lead to widespread fuel supply disruptions, directly impacting the operational continuity of natural gas-powered generators. When catastrophic weather events or other natural disasters compromise pipelines, the consistent flow of natural gas to power generation facilities is interrupted, causing unexpected downtime for these critical assets.

This instability in fuel supply directly hampers the growth of the aftermarket natural gas generator market. Reduced operational hours from unreliable fuel delivery diminish demand for routine maintenance, component replacements, and performance upgrades. According to the Interstate Natural Gas Association of America, natural gas accounted for over 42% of electricity generation in the United States in 2023, a 7% increase from 2022. If these generators frequently experience outages due to fuel unavailability, businesses are less inclined to invest in aftermarket services for equipment that cannot consistently perform. This uncertainty regarding future operational reliability directly discourages expenditure on asset lifespan extension or efficiency enhancements, hindering aftermarket expansion.

Key Market Trends

The growing integration of IoT for predictive maintenance and remote monitoring is transforming aftermarket services for natural gas generators. By deploying interconnected sensors and advanced analytics, operators can shift from reactive to proactive maintenance, anticipating potential failures to minimize unplanned downtime and optimize efficiency. According to Inmarsat, October 2023, 74 percent of oil and gas companies had already implemented some form of IoT technology. This trend drives demand for sophisticated digital services and specialized technicians. A notable example is, according to GE Vernova, May 2024, the company announced a cloud-based computer vision software solution for autonomous inspection, which aimed to bring 20% O&M savings to energy asset inspections. Such integration ultimately enhances asset reliability and extends operational lifespan.

The expansion of renewable natural gas (RNG) and hydrogen fuel blending conversions presents a significant trend, reshaping aftermarket requirements for natural gas generators. The drive towards decarbonization pressures operators to adapt existing fleets for lower-carbon fuels, necessitating specialized aftermarket services. These include engine modifications, fuel system upgrades, and control system recalibrations to ensure optimal performance and environmental compliance. According to the RNG Coalition, in 2024, over 400 RNG facilities were operational across the US, with an additional 130 under construction and 233 planned, representing a potential 60% increase in production capacity. This growth generates demand for conversion kits and expert labor. For instance, according to Caterpillar, November 2023, the company expanded its gas generator set lineup with aftermarket retrofit kits, enabling operation on natural gas blended with up to 25% hydrogen by volume. These solutions are critical for maximizing environmental benefits and operational longevity.

Segmental Insights

The Commercial segment is currently the fastest-growing within the Global Aftermarket Natural Gas Generator Market, driven by a confluence of specific factors. Commercial entities, encompassing offices, retail spaces, healthcare facilities, and data centers, increasingly prioritize dependable backup power solutions to ensure operational continuity amidst prevalent grid instabilities and frequent power interruptions. This demand is further propelled by the global shift towards environmental sustainability and more stringent regulatory frameworks encouraging lower carbon emissions, making natural gas generators a preferred, cleaner alternative to traditional diesel systems. Consequently, the sustained expansion of urban commercial infrastructure significantly contributes to the escalating aftermarket requirements for these advanced power systems.

Regional Insights

North America holds a leading position in the global aftermarket natural gas generator market, underpinned by several specific drivers. The region benefits from abundant natural gas reserves and a well-developed infrastructure for its distribution, ensuring consistent fuel availability for generators. An aging electrical grid infrastructure, combined with the increasing frequency of extreme weather events, heightens the demand for reliable backup power across commercial, industrial, and residential applications, boosting aftermarket service and replacement needs. Additionally, stringent environmental regulations, particularly from entities like the Environmental Protection Agency, favor natural gas generators due to their cleaner emissions profile compared to alternative fuel sources, thereby accelerating their adoption and continued maintenance within the aftermarket.

Recent Developments

In June 2025, Aggreko expanded its "Greener Upgrades" portfolio by launching three new natural gas generators. The new models included a 350 kW generator, a 1500 kW unit, and a 1500 kW Rapid Deploy trailer-mounted generator. These additions were developed to assist customers in reducing emissions and operating costs while improving energy efficiency. This product expansion directly contributes to the global aftermarket for natural gas generators by providing more modular and environmentally conscious power solutions across various commercial and industrial sectors.

In January 2025, Generac Holdings Inc. unveiled its newest home standby generator design, featuring a 28kW air-cooled model. This product introduction positioned it as the most powerful air-cooled home standby generator available in the market. The new design was created to integrate seamlessly with other Generac energy solutions, providing customers with enhanced control over their power needs. Such new product launches by a prominent manufacturer directly impact the aftermarket for natural gas generators by introducing advanced units that will require specialized maintenance and parts in the future.

In December 2024, Caterpillar introduced new advancements to its gas generator set portfolio, which included equipment designed to operate on gas/hydrogen blends. This expansion specifically incorporated aftermarket kits, allowing existing natural gas generator units to support these new fuel combinations. Additionally, the company launched a 50 Hz option for its fast-response natural gas generator sets, aimed at providing continuous power in regions with less reliable grids. These innovations enhance the flexibility and sustainability of natural gas power solutions for various applications, contributing to the aftermarket's evolving fuel requirements.

In July 2024, Cummins Power Generation received an industry award for its QSJ8.9G natural gas standby generators, specifically in the 125kW-200kW range. This recognition marked the fourth consecutive product award for Cummins from the publication. The generators were developed to deliver dependable performance for critical applications, meeting rigorous industry standards. This product launch expands the available options for natural gas standby power solutions, influencing future aftermarket service and parts demands as these units become operational across various non-residential sectors.

Key Market Players

Caterpillar Inc.
Cummins Inc.
Generac Holdings Inc.
General Electric Company
Siemens AG
Wartsila Corporation
Yanmar Holding Co., Ltd.
Mitsubishi Heavy Industries Ltd.
Rolls-Royce plc
Kohler Co.

By Type	By Application	By Region
Service & Maintenance Repair Overhaul & Remanufacturing Upgrades & Modifications	Commercial Industrial Residential	North America Europe Asia Pacific South America Middle East & Africa

Report Scope:

In this report, the Global Aftermarket Natural Gas Generator Market has been segmented into the following categories, in addition to the industry trends which have also been detailed below:

Aftermarket Natural Gas Generator Market, By Type:

o Service & Maintenance

o Repair

o Overhaul & Remanufacturing

o Upgrades & Modifications

Aftermarket Natural Gas Generator Market, By Application:

o Commercial

o Industrial

o Residential

Aftermarket Natural Gas Generator Market, By Region:

o North America

§ United States

§ Canada

§ Mexico

o Europe

§ France

§ United Kingdom

§ Italy

§ Germany

§ Spain

o Asia Pacific

§ China

§ India

§ Japan

§ Australia

§ South Korea

o South America

§ Brazil

§ Argentina

§ Colombia

o Middle East & Africa

§ South Africa

§ Saudi Arabia

§ UAE

Competitive Landscape

Company Profiles: Detailed analysis of the major companies presents in the Global Aftermarket Natural Gas Generator Market.

Available Customizations:

Global Aftermarket Natural Gas Generator Market report with the given market data, TechSci Research offers customizations according to a company's specific needs. The following customization options are available for the report:

Company Information

Detailed analysis and profiling of additional market players (up to five).

Global Aftermarket Natural Gas Generator Market is an upcoming report to be released soon. If you wish an early delivery of this report or want to confirm the date of release, please contact us at [email protected]

Table of content

1. Product Overview

1.1. Market Definition

1.2. Scope of the Market

1.2.1. Markets Covered

1.2.2. Years Considered for Study

1.2.3. Key Market Segmentations

2. Research Methodology

2.1. Objective of the Study

2.2. Baseline Methodology

2.3. Key Industry Partners

2.4. Major Association and Secondary Sources

2.5. Forecasting Methodology

2.6. Data Triangulation & Validation

2.7. Assumptions and Limitations

3. Executive Summary

3.1. Overview of the Market

3.2. Overview of Key Market Segmentations

3.3. Overview of Key Market Players

3.4. Overview of Key Regions/Countries

3.5. Overview of Market Drivers, Challenges, Trends

4. Voice of Customer

5. Global Aftermarket Natural Gas Generator Market Outlook

5.1. Market Size & Forecast

5.1.1. By Value

5.2. Market Share & Forecast

5.2.1. By Type (Service & Maintenance, Repair, Overhaul & Remanufacturing, Upgrades & Modifications)

5.2.2. By Application (Commercial, Industrial, Residential)

5.2.3. By Region

5.2.4. By Company (2024)

5.3. Market Map

6. North America Aftermarket Natural Gas Generator Market Outlook

6.1. Market Size & Forecast

6.1.1. By Value

6.2. Market Share & Forecast

6.2.1. By Type

6.2.2. By Application

6.2.3. By Country

6.3. North America: Country Analysis

6.3.1. United States Aftermarket Natural Gas Generator Market Outlook

6.3.1.1. Market Size & Forecast

6.3.1.1.1. By Value

6.3.1.2. Market Share & Forecast

6.3.1.2.1. By Type

6.3.1.2.2. By Application

6.3.2. Canada Aftermarket Natural Gas Generator Market Outlook

6.3.2.1. Market Size & Forecast

6.3.2.1.1. By Value

6.3.2.2. Market Share & Forecast

6.3.2.2.1. By Type

6.3.2.2.2. By Application

6.3.3. Mexico Aftermarket Natural Gas Generator Market Outlook

6.3.3.1. Market Size & Forecast

6.3.3.1.1. By Value

6.3.3.2. Market Share & Forecast

6.3.3.2.1. By Type

6.3.3.2.2. By Application

7. Europe Aftermarket Natural Gas Generator Market Outlook

7.1. Market Size & Forecast

7.1.1. By Value

7.2. Market Share & Forecast

7.2.1. By Type

7.2.2. By Application

7.2.3. By Country

7.3. Europe: Country Analysis

7.3.1. Germany Aftermarket Natural Gas Generator Market Outlook

7.3.1.1. Market Size & Forecast

7.3.1.1.1. By Value

7.3.1.2. Market Share & Forecast

7.3.1.2.1. By Type

7.3.1.2.2. By Application

7.3.2. France Aftermarket Natural Gas Generator Market Outlook

7.3.2.1. Market Size & Forecast

7.3.2.1.1. By Value

7.3.2.2. Market Share & Forecast

7.3.2.2.1. By Type

7.3.2.2.2. By Application

7.3.3. United Kingdom Aftermarket Natural Gas Generator Market Outlook

7.3.3.1. Market Size & Forecast

7.3.3.1.1. By Value

7.3.3.2. Market Share & Forecast

7.3.3.2.1. By Type

7.3.3.2.2. By Application

7.3.4. Italy Aftermarket Natural Gas Generator Market Outlook

7.3.4.1. Market Size & Forecast

7.3.4.1.1. By Value

7.3.4.2. Market Share & Forecast

7.3.4.2.1. By Type

7.3.4.2.2. By Application

7.3.5. Spain Aftermarket Natural Gas Generator Market Outlook

7.3.5.1. Market Size & Forecast

7.3.5.1.1. By Value

7.3.5.2. Market Share & Forecast

7.3.5.2.1. By Type

7.3.5.2.2. By Application

8. Asia Pacific Aftermarket Natural Gas Generator Market Outlook

8.1. Market Size & Forecast

8.1.1. By Value

8.2. Market Share & Forecast

8.2.1. By Type

8.2.2. By Application

8.2.3. By Country

8.3. Asia Pacific: Country Analysis

8.3.1. China Aftermarket Natural Gas Generator Market Outlook

8.3.1.1. Market Size & Forecast

8.3.1.1.1. By Value

8.3.1.2. Market Share & Forecast

8.3.1.2.1. By Type

8.3.1.2.2. By Application

8.3.2. India Aftermarket Natural Gas Generator Market Outlook

8.3.2.1. Market Size & Forecast

8.3.2.1.1. By Value

8.3.2.2. Market Share & Forecast

8.3.2.2.1. By Type

8.3.2.2.2. By Application

8.3.3. Japan Aftermarket Natural Gas Generator Market Outlook

8.3.3.1. Market Size & Forecast

8.3.3.1.1. By Value

8.3.3.2. Market Share & Forecast

8.3.3.2.1. By Type

8.3.3.2.2. By Application

8.3.4. South Korea Aftermarket Natural Gas Generator Market Outlook

8.3.4.1. Market Size & Forecast

8.3.4.1.1. By Value

8.3.4.2. Market Share & Forecast

8.3.4.2.1. By Type

8.3.4.2.2. By Application

8.3.5. Australia Aftermarket Natural Gas Generator Market Outlook

8.3.5.1. Market Size & Forecast

8.3.5.1.1. By Value

8.3.5.2. Market Share & Forecast

8.3.5.2.1. By Type

8.3.5.2.2. By Application

9. Middle East & Africa Aftermarket Natural Gas Generator Market Outlook

9.1. Market Size & Forecast

9.1.1. By Value

9.2. Market Share & Forecast

9.2.1. By Type

9.2.2. By Application

9.2.3. By Country

9.3. Middle East & Africa: Country Analysis

9.3.1. Saudi Arabia Aftermarket Natural Gas Generator Market Outlook

9.3.1.1. Market Size & Forecast

9.3.1.1.1. By Value

9.3.1.2. Market Share & Forecast

9.3.1.2.1. By Type

9.3.1.2.2. By Application

9.3.2. UAE Aftermarket Natural Gas Generator Market Outlook

9.3.2.1. Market Size & Forecast

9.3.2.1.1. By Value

9.3.2.2. Market Share & Forecast

9.3.2.2.1. By Type

9.3.2.2.2. By Application

9.3.3. South Africa Aftermarket Natural Gas Generator Market Outlook

9.3.3.1. Market Size & Forecast

9.3.3.1.1. By Value

9.3.3.2. Market Share & Forecast

9.3.3.2.1. By Type

9.3.3.2.2. By Application

10. South America Aftermarket Natural Gas Generator Market Outlook

10.1. Market Size & Forecast

10.1.1. By Value

10.2. Market Share & Forecast

10.2.1. By Type

10.2.2. By Application

10.2.3. By Country

10.3. South America: Country Analysis

10.3.1. Brazil Aftermarket Natural Gas Generator Market Outlook

10.3.1.1. Market Size & Forecast

10.3.1.1.1. By Value

10.3.1.2. Market Share & Forecast

10.3.1.2.1. By Type

10.3.1.2.2. By Application

10.3.2. Colombia Aftermarket Natural Gas Generator Market Outlook

10.3.2.1. Market Size & Forecast

10.3.2.1.1. By Value

10.3.2.2. Market Share & Forecast

10.3.2.2.1. By Type

10.3.2.2.2. By Application

10.3.3. Argentina Aftermarket Natural Gas Generator Market Outlook

10.3.3.1. Market Size & Forecast

10.3.3.1.1. By Value

10.3.3.2. Market Share & Forecast

10.3.3.2.1. By Type

10.3.3.2.2. By Application

11. Market Dynamics

11.1. Drivers

11.2. Challenges

12. Market Trends & Developments

12.1. Merger & Acquisition (If Any)

12.2. Product Launches (If Any)

12.3. Recent Developments

13. Global Aftermarket Natural Gas Generator Market: SWOT Analysis

14. Porter's Five Forces Analysis

14.1. Competition in the Industry

14.2. Potential of New Entrants

14.3. Power of Suppliers

14.4. Power of Customers

14.5. Threat of Substitute Products

15. Competitive Landscape

15.1. Caterpillar Inc.

15.1.1. Business Overview

15.1.2. Products & Services

15.1.3. Recent Developments

15.1.4. Key Personnel

15.1.5. SWOT Analysis

15.2. Cummins Inc.

15.3. Generac Holdings Inc.

15.4. General Electric Company

15.5. Siemens AG

15.6. Wartsila Corporation

15.7. Yanmar Holding Co., Ltd.

15.8. Mitsubishi Heavy Industries Ltd.

15.9. Rolls-Royce plc

15.10. Kohler Co.

16. Strategic Recommendations

17. About Us & Disclaimer

Report Description

Table of content

Figures and Tables

Frequently asked questions

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