Caterpillar Energy Solutions
Caterpillar's energy solutions division providing power generation and propulsion systems.
Last updated August 31, 2026
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Overview
Caterpillar Energy Solutions GmbH is a German mechanical-engineering company headquartered in Mannheim, Baden-Württemberg. The business is historically associated with the MWM name, derived from Motoren-Werke Mannheim, and is now part of Caterpillar Inc.'s electric-power activities. Its principal products are gas engines and generator sets used for decentralized electricity generation, combined heat and power, biogas facilities, and other stationary power applications. The company also provides project consulting, system design, engineering, plant construction, commissioning, training, and after-sales support. The enterprise traces its institutional roots to the separation of a stationary-engine department from Benz & Cie. Rheinische Gasmotorenfabrik in Mannheim in 1922. The resulting Motorenwerke Mannheim operated under the technical leadership of Prosper L'Orange, a prominent engineer in the development of diesel-engine technology. Diesel engines became an important part of the company's historical business, serving utility vehicles, agricultural equipment, and other commercial applications. MWM also produced machinery and power units for external manufacturers, including engines used in combines and tractors made by Claas, Renault, Fendt, Lanz, Bautz, Holder, and Ritscher. MWM briefly entered tractor manufacturing itself. In 1924 it introduced the Motorpferd, whose name means “motor horse,” but the tractor activity was discontinued in 1931. The company later concentrated more heavily on engine manufacturing and stationary power technology. In 1926 Knorr-Bremse acquired a majority interest, while in 1985 the business was sold to Deutz AG. Under Deutz ownership, the Mannheim site was retained and the company was repeatedly reorganized. Deutz also expanded the gas-engine division, which eventually became central to the business. Before Caterpillar's acquisition, the company was known as Deutz Power Systems. On 22 October 2010, Caterpillar announced an agreement to acquire MWM from investment firm 3i for €580 million, subject to regulatory approvals. The transaction placed the company within Caterpillar's Electric Power Division and extended Caterpillar's presence in gas-based distributed generation. In October 2013, MWM announced that it would adopt the Caterpillar Energy Solutions name effective 1 November 2013. The modern business is focused primarily on gas engines and generator sets, including equipment for cogeneration and biogas plants. Its offering extends beyond standalone engines: the company supports customers with plant concepts, engineering, installation, commissioning, maintenance, parts, technical support, and education through its training activities. Its customer base includes operators and developers of distributed-energy, industrial, agricultural, municipal, and utility-scale projects. The MWM identity remains relevant as a product and historical brand within Caterpillar's energy portfolio, while Caterpillar Energy Solutions is the corporate name used for the Mannheim-based operation.
History
Caterpillar Energy Solutions developed from the stationary-engine activities of Benz & Cie. Rheinische Gasmotorenfabrik in Mannheim. In 1922, that department was separated and renamed Motorenwerke Mannheim. Prosper L'Orange, whose earlier work at Benz had contributed to diesel-engine development, served as technical manager during the company's formative period. The new enterprise became associated with diesel engines for commercial vehicles, agricultural machinery, and stationary applications. The company also experimented with complete vehicles and machinery. In 1924 it built the Motorpferd tractor, but tractor production ended in 1931. For much of its subsequent history, MWM supplied engines to other manufacturers rather than relying only on its own finished equipment. Its engines were used in combines and tractors produced by a range of European manufacturers, including Claas, Renault, Fendt, Lanz, Bautz, Holder, and Ritscher. Knorr-Bremse acquired a majority stake in 1926 and took control of the company. In 1985, Knorr-Bremse sold MWM to Deutz AG. Deutz retained the Mannheim industrial location and reorganized the business several times. During the Deutz period, the gas-engine business was developed and expanded, gradually becoming more strategically important as demand grew for decentralized generation and combined heat and power. Before its acquisition by Caterpillar, the company operated under the name Deutz Power Systems. Caterpillar announced the planned purchase from 3i on 22 October 2010. The announced price was €580 million, subject to regulatory clearance. The acquisition brought MWM into Caterpillar's Electric Power Division and broadened Caterpillar's portfolio in gas engines, generator sets, and distributed power. The corporate identity changed again in 2013. MWM announced in October that it would be renamed Caterpillar Energy Solutions from 1 November. The MWM name continued to carry historical and product significance, but the new corporate designation reflected its integration into Caterpillar. The Mannheim company subsequently focused on gas engines, cogeneration units, biogas plants, energy-plant engineering, commissioning, and global lifecycle support. Its capabilities include consulting, system and plant design, engineering, construction, commissioning, maintenance, spare parts, technical assistance, and customer training. This makes the company more than an engine supplier: it can participate in the development and operation support of complete distributed-energy projects. The modern business is particularly associated with gas-based electricity generation, combined heat and power, and biogas applications, while its history remains rooted in German diesel-engine engineering.
- 2013
Corporate name changes to Caterpillar Energy Solutions
[1]The company announced that the MWM corporate name would be replaced by Caterpillar Energy Solutions from 1 November 2013.
- 2010
Caterpillar agrees to acquire MWM
[1]Caterpillar announced an agreement to purchase MWM from 3i for €580 million, subject to regulatory approvals.
- 1985
Deutz AG becomes owner
[1]Knorr-Bremse sold MWM to Deutz AG, which retained the Mannheim site and subsequently restructured the business.
- 1931
Tractor production ends
[1]MWM discontinued its tractor-production activity and continued concentrating on engine manufacturing and related industrial applications.
- 1926
Knorr-Bremse acquires majority control
[1]Knorr-Bremse acquired a majority of the company's shares and took over the business.
- 1924
Motorpferd tractor introduced
[1]MWM manufactured its first tractor, the Motorpferd, although the company's tractor production was later discontinued.
- 1922
Motorenwerke Mannheim is established
[1]The stationary-engine department of Benz & Cie. Rheinische Gasmotorenfabrik in Mannheim was separated and renamed Motorenwerke Mannheim, creating the institutional predecessor of MWM.
Products and positioning
A German industrial power-generation specialist positioned around gas-engine technology, decentralized electricity production, cogeneration, biogas applications, engineered energy plants, and long-term technical service. The business combines the MWM engineering heritage with Caterpillar's global electric-power organization.
Power-generation engines
Gas engines
Gas engines are the company's central modern product category. They are used in stationary power-generation applications, including combined heat and power installations, industrial plants, and biogas facilities. The engines convert gaseous fuels into electricity and, in cogeneration configurations, useful heat.
Distributed power equipment
Generator sets
MWM-branded generator sets combine an engine and electrical-generation equipment for decentralized power production. They can be deployed in cogeneration, biogas, industrial, municipal, and other stationary energy projects, supported by engineering, commissioning, and service capabilities.
Energy systems
Combined heat and power systems
The company supplies equipment and project expertise for cogeneration systems that produce electricity and usable heat from the same fuel input. These systems are intended for customers seeking efficient, localized energy production rather than electricity generation alone.
Renewable and distributed energy
Biogas power plants
Caterpillar Energy Solutions provides gas-engine technology for biogas plants, where treated biogas is used as fuel for electricity generation and potentially combined heat and power. The offering includes plant engineering and operational support in addition to the engine equipment.
Industrial engines
Diesel engines
Diesel engines were a major historical part of MWM's business and were used in utility vehicles, agricultural machinery, and equipment manufactured by other European companies. Diesel engineering remains important to the company's history even though its current public positioning emphasizes gas engines and stationary energy.
Brand decisions
2013
Rebranding as Caterpillar Energy SolutionsStrategyBackground
Following Caterpillar's acquisition, the company chose to align its corporate identity with its new parent and the broader electric-power organization.
Action taken
The company announced that it would change its name from MWM GmbH to Caterpillar Energy Solutions effective 1 November 2013.
Aftermath
The MWM identity continued as a historical and product reference, while Caterpillar Energy Solutions became the corporate name.
2010
Agreement to sell MWM to CaterpillarM&ABackground
MWM was known as Deutz Power Systems when investment firm 3i owned the business. Caterpillar sought to expand its electric-power activities through the acquisition of MWM's gas-engine and distributed-generation capabilities.
Action taken
Caterpillar announced an agreement to acquire MWM from 3i for €580 million, subject to approval by the relevant authorities.
Aftermath
MWM became part of Caterpillar's Electric Power Division and later adopted the Caterpillar Energy Solutions corporate name.
Announced acquisition price. €580 million (2010 announcement)
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