Specialists in bespoke power solutions

Unique in-house

testing facility


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Dieselec Thistle is the leading generator specialist in the UK. We supply, install and maintain diesel generators across the country, providing our customers with products and support throughout the life cycle of their generator set. As an authorised FG Wilson dealer, we are backed by a global generator manufacturer with a wealth of experience in the power industry.

Whatever your power requirement, you can trust Dieselec Thistle to meet it.


We offer a complete range of diesel generating sets, from 6 – 3000 KVA. Working across the UK, our team of expert Sales Engineers and skilled Service Technicians, provide comprehensive support in the specification, installation and maintenance of your generator set.