About Us

Proud to be leading in biomass heating

We have been installing and servicing commercial biomass heating systems for agricultural, commercial and industrial sites since 2013. We help businesses reduce their carbon footprint, save on their energy costs and qualify for the government Renewable Heat Incentive. We support our customers from biomass feasibility and system design through to installation and long-term maintenance. We also supply high quality biomass fuels.

An experienced business that you can trust

We are in the biomass heating industry for the long haul. We believe in biomass heating and have developed our business to ensure we can provide long term care and support for our customers. That’s why we only install the best quality systems and components, using sound engineering and efficient designs. Our installation teams are highly trained to ensure we can deliver a project on time, to a high quality and to budget. Our service team are capable of working on all makes and model of biomass boiler ensuring we offer long term support for our customers.

3D render CHP Plant


A team with a proven track record

NerG directors Stuart Robertson, Chris Allen and Rob Starkey have worked together for 20 years and in 2000 formed Chafer Machinery Ltd. Chafer Machinery supplies state of the art crop spraying equipment for farmers in the UK and overseas. Chafer Machinery also supplies runway deicing equipment to some of the UK’s largest airports, through our aviation supply department. In 2002 Chafer Machinery Ltd acquired Horstine, a world leader in the design and manufacture of highly accurate equipment for the application of granular pesticides, fertilisers and seeds.