Diesel Generator Sales

Derby, Nottingham and Leicester generator services serving the UK. We supply generator services nationwide, specialising in diesel power systems.

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We offer the best new & used generators


Whether you're looking for a brand new or used generator, our company offers only the best quality products to meet your needs. From compact portable generators to powerful industrial systems, we offer a wide range of new and used options that are sure to suit your budget and requirements. We can also offer financing. 

Why buy from us?

We are a full-service company

We supply generator services nationwide, specialising in diesel power systems. We are a full-service company which means we can provide everything your company needs to manage your generator power system, whatever your requirements. We supply, install, commission, service and repair all types of generators from small power generators to large scale industrial systems.

First Class Customer Care

We pride ourselves on our reputation for first class customer care and a high level of technical expertise, built up over almost three decades. Our customers value our ability to provide straightforward practical advice from a team of seasoned generator specialists. Based near Derby, Leicester and Nottingham in the East Midlands, we cover the whole of the UK and in particular can provide a very fast response to large areas of the Midlands and the South East. Support by telephone is also provided, giving you peace of mind that help is always available.

Freeman Energy for your power generator needs?

We are located at the centre of the UK’s generator and component manufacturing region, with many of the country’s leading brands within a short drive. This means we have fast access to major spare parts if you require them and can source quality generator components and servicing parts, often on the same day. We service and maintain all of the leading international brands too, so whatever your requirements, when it comes to diesel generators, we can deliver.

Get the best price for your used Generator


We pay top cash prices for various types of generators, including standby industrial or commercial backup generators, open sets, full canopy or acoustically attenuated units, and surplus diesel power generators. Our expertise extends to all major brand names, securing you the best possible value for your equipment. So, look no further if you want to sell your generator.

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Want to learn more about what we offer?


We have a team of experts ready to answer your questions and help you get what you need.

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We are trusted by the industry


GenHeat PowerHeat Perkins Deutz Cummings Volva Penta
John Deere Doosan Aksa JCB Pramac CPS
CAT Dometic Himoinsa Stephill FG Wilson SDMO
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