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We Offer A Range Of Products
To Suit Your Power Needs

Through the years...

Through the years
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Fred Wilson

Founder of FG Wilson

The FG Wilson brand’s journey started in 1966 with Fred Wilson and his 6 colleagues in Belfast, Northern Ireland. Today FG Wilson is powering life in over 150 countries with around 670,000 gensets installed since 1990. The world has changed much in that time but the FG Wilson formula of quality, support and value still remains the same more than 50 years later.

The biggest leap for FG Wilson was taken in 1993, when the company relocated into a 70,000 square metre facility in Larne, Northern Ireland. The immense growth and potential of FG Wilson in the European market attracted the attention of Caterpillar Inc and in 2000, FG Wilson became a wholly owned subsidiary of Caterpillar.

FG Wilson in the Philippines

FG Wilson in the Philippines
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Prior to 1999, FG Wilson gensets were sold primarily by Asia Industries, dealer of Westinghouse Products in the Philippines. It was in 1999, about the same year as FG Wilson Engineering became a fully owned subsidiary of Caterpillar  when Powerasia Equipment Resources became the appointed dealer of FG Wilson products. Since that year Powerasia sold 3600 gensets  catering to various industries such as banking, agriculture, diesel power plants, water districts, telecoms, hospitals. In 2019, in its bid to consolidate resources, Castlepower took over the dealership of FG Wilson products from Powerasia. Thus Powerasia remain as the service provider of Castlepower.

Timeline and Milestones

Genset Ranges

Genset Ranges

Small Range

Our Small Product Range of generator set models is available from 8 – 220 kVA. Offering a wide selection of prime and standby models at 60 Hz for all applications. Powered by either an EU Stage IIIa Emissions compliant engine for emissions regulated territories or a fuel optimised engine for less stringent global markets.

kVA Range

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Small_Range

Medium Range

Our Medium Product Range of generator set models is available from 249 –750 kVA. Offering a wide selection of prime and standby models at 60 Hz for all applications. Powered by either an EU Stage IIIa Emissions compliant engine for emissions regulated territories or a fuel optimised engine for less stringent global markets.

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Medium_Range

kVA Range

Large Range

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Our Large Product Range of generator set models is

available from 730 - 2500 kVA. These generator

sets are proven in the field and trusted to provide

reliable power for critical applications

including: mini power stations, data

centres, large factories, airports,

hospitals and large retail stores etc.

Available with a 50°C package

option, to ensure efficient operation

in high ambient temperatures, this range

can be customised with bespoke enclosures,

cooling systems and specialised control systems.

kVA Range

Global Facilities

FG Wilson has manufacturing facilities on three major continents, Europe, the Americas and Asia.


Europe – Larne (UK)
Asia – Tianjin China, Chinnai India
Americas –  Piracicaba Brazil


The strategy is to meet our customers needs locally, resulting in shorter lead times, local component content regulations and reduced emission due to locally sourced parts not being flown around the world.


Across all these facilities the One Global Standard's processes and procedures are adhered to ensuring that all FG Wilson's gensets are designed and developed to the highest standard throughout the world.

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FG Wilson Larne UK

FG Wilson Larne UK

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FG Wilson India

FG Wilson India

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FG Wilson Brazil

FG Wilson Brazil

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FG Wilson Tianjin

FG Wilson Tianjin

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Why Choose FG Wilson?

Why Chose FG Wilson

Firm. FG Wilson gensets can withstand shock test, which very few manufacturers would allow their gensets to be subjected to shock load - a sudden load from 0 to 100% load cold start. This is particularly important to critical applications such as data centers, hospitals (especially for the equipment in ICU units), and power plants. FG Wilson gensets is also the preferred equipment for prime use by NPC-Spug for its reliability. 

Genset Video

Shock Load

Shock Load

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Test Genset:

Model: P33-1

Rating: 37.5kVa/30kW

Voltage: 230V

Load bank: 35kW

Current: 87.8A

Good Design.  With long years experience in manufacturing gensets, FG Wilson are designed as a balanced system. From the design of the radiator making sure that the optimum heat transfer and thermodynamics of the engine are properly calculated, to the perfect matching of generator and engine thus achieving maximum generator efficiency from mechanical energy to electrical energy. No wonder, FG Wilson can be used for the most rugged use.

World Class - FG Wilson is manufactured by Caterpillar Production System (CPS) which you can be assured of world class quality system:

  • Uniform production system applied to ALL facilities of Caterpillar (including FG Wilson) regardless of location.

  • Focus on three types of processes:

    • Core – factory floor, planning, delivery

    • Governing – safety, quality, 6sigma

    • Enabling – people, culture, values

  • 6sigma – philosophy that strives for perfection (3.4 defects per million)

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