Founded in 2003, AJ Power is based in a modern facility in Craigavon, Northern Ireland, United Kingdom. The company specialises in the volume manufacture and design of diesel generating sets with a management team who have over 40 years’ experience in the industry. All AJ Power generating sets provide reliable power, innovative design and peace of mind. The market for generating sets is growing rapidly, keeping pace with the rising demand for electricity and AJ Power are at the forefront with technology to meet this demand.

Since its inception the company has maintained continuous and remarkable growth and its products are now in use in over 85 countries around the world. Our international presence is marked by an extensive network of distributors worldwide.

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Our Expertise

The users of AJ Power products and accessories expect nothing but the best and our engineers do not disappoint. Our highly qualified team has a global vision that drives the company forward. We currently have over 80 employees, many of which have graduated from Northern Ireland’s specialist universities.

AJ Power invests heavily in staff training. We are constantly refreshing and updating the skills of our employees to ensure they have the technical knowledge they require.

Our Mission & Values

AJ Power’s mission is to facilitate the reliable generation of electrical power worldwide based on core values of passion, commitment, innovation, respect and integrity.

We achieve this through providing ‘state-of-the-art’ generating sets on short lead times at highly competitive prices.

AJ Power Limited is committed to developing, producing and selling the ‘best generating sets in the world’.


As a volume manufacturer, the use of modern automated techniques ensures the name AJ Power is synonymous with the efficient and economic provision of quality electric power generation. Each AJ Power generating set is manufactured in the company’s modern 10,000 sq metre facility. Our superior products are not a matter of chance, but of sound engineering processes and superior components.

Metal Fabrication Facility

In August 2017, AJ Power started the construction of its new 12m high industrial facility. A quarter of this new building is being used as a warehouse for storage and the remaining area houses our fabrication facility capable of producing our entire range of heavy fabrication. Details of factory are listed below.

AJ Power Limited is in receipt of SFA Capital support from Invest NI for the construction and fit out of a new Metal Fabrication Facility. This project which is part-financed by the European Regional Development Fund under the Investment for Growth and Jobs Programme 2014-2020 aims to cement AJ Power's position as a leading global genset manufacturer and provide jobs to the local economy.

CNC Plasma Cutting

This machine uses market leading ultra-sharp cutting technology to profile parts with a laser quality cut at a fraction of the cost. We can profile parts from 1mm thick through to 30mm enabling us to cut any part for our entire range of base frames.

Tandem Brake Presses

The new state of the art Durma 4m + 4m Tandem Brake Presses commenced. Each machine has a pressing force of 320 Tonne and will enable us to fold parts for our entire range of baseframes for the 3 series to 9 series gensets.

Wet Paint Booth

The new state of the art wet paint spray booth enables us to paint any out of size bespoke structure up to 4m x 4m x 12m. The booth incorporates full ceiling ventilation and side wall extraction units and can be operated in two cycles, spray and bake. The booth has been configured so we can split it in half in order to maximise efficiency when painting smaller assemblies or parts. Fuelled by natural gas and incorporating market leading spray booth technology our new booth will ensure we remain competitive, efficient and produce high specification wet paint finishes on all our components and assemblies which will give maximum performance in even the harshest environments.

Shot Blasting

The purpose built shot blasting booth provides us with the perfect enclosure for carrying out the surface preparation required on our base frames to ensure they are perfectly clean and have the required surface profile for powder coating. This stage in the surface finishing of our base frames is critical and having such a high specification booth with full room extraction, shot blast recovery system and operator breathing equipment not only ensures our base frames go through the correct process but creates the ideal environment for our employees to work in.

Powder Coating Booth & Curing Oven

Our new bespoke powder coating spray booth and curing oven has been specifically designed to enable us to paint our entire range of base frames. The booth itself incorporates a down draft system ensuring the room remains free from overspray powder and the operator is protected by breathing equipment and a dedicated fire protection system. The oven is fuelled by natural gas and incorporates the latest burner technology to ensure we can cure our base frames as efficiently as possible.

Automated Assembly Tracks

Our 3, 5 and 7 Series ranges (up to 770kVA) are produced on automated assembly tracks.

Manufacturing a diesel generating set requires an extensive assembly line and our highly qualified experts assemble the components using the latest technology.

Advanced Test Cells

All AJ Power products undergo comprehensive testing prior to despatch using microprocessor controlled load banks. The company has an accredited on-site facility for noise testing in compliance with CE and undertakes electromagnetic compatibility (EMC) testing of its products.

The newest addition to the main AJ Power factory is a three station test cell which is serviced by two fully automated production lines. Incorporated in the test cells is a dedicated "Research and Design Station" where our engineers can carry out research in an 'off-line' scenario. Simultaneous testing can be carried out at all three stations.

Large Machine Assembly Hall

Our ultra-modern large machine assembly hall facilitates the production of our 9 Series range.

The 12 metre high building incorporates a 32 tonnes gantry crane and two state-of-the-art fully acoustic test cells.

The assembly hall facilitates the building and testing of generating sets from 800kVA to 4000kVA at low voltage, as well as high voltage and synchronisation.

Engine and Alternator Stocks

AJ Power maintains a large stock of engines and alternators to reduce customer lead times.

This means we can be flexible in meeting customer requirements for our product, in terms of both the lead time and size of the generator.

We work closely with the customer to ensure they can meet their requirement.

Quality Assurance

The quality of the product and service provided by AJ Power to its customers is the concern of each member of the organisation. We believe quality is not a matter of chance, but develops from sound engineering processes and superior components. To assist the company in achieving its quality requirements it is committed to operating in a manner that sustains registration to the International Quality Standard ISO 9001: 2015. It is the Organisation’s belief that, in operating to these standards, it will meet the requirements of its customers and the industry.

Our objectives are:

  • Satisfy our customers’ needs and expectations.
  • Make commitments we fully understand and believe we can meet.
  • Meet the commitments made to customers within the agreed timescale.
  • Follow a concept of continuous improvement and make best use of our management resources in all quality matters.
  • Perform our work in an efficient and professional manner.
  • Comply with all applicable laws and regulations.
  • Use qualified and experienced staff with the capabilities to achieve our goals.
  • Train our staff in the organisation’s policies and procedures.


  • ISO 9001 : 2015 International Quality Assurance Standard

  • ISO 14001 : 2015 Environmental Standard

  • ISO 45001: 2018 Health and Safety Assurance Standard

  • SONCAP Certification


  • The King'Award For Enterprise for International Trade 2024

  • The Queens Award for Enterprise: International Trade 2016

  • British Airways Sponsored Excellence in Exporting Award 2016

  • Ulster Bank Business Achievers Best Small Business 2015

  • Highly Commended SME of the Year 2015 - Business Eye Awards

  • British Airways Sponsored Excellence in Exporting Award 2015

  • Aer Lingus Viscount Award for Best Medium Business 2015

  • British Airways Northern Ireland Overall Business of the Year 2014

  • Danske Bank Award for Excellence in Exporting 2014

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