Welsh Wildlife Trust

Biomass boiler solution replaces two LPG boilers, helps client save 50% on fuel costs and reduce CO₂ by 98%

Key Facts


Bridgend, Wales

Project included

  • Guntamatic 50kW Powerchip biomass boiler system
  • Flue system and thermal store
  • Fuel store pre fitted into shipping container

Fuel consumption

Approximately 16 tonnes of wood chips per annum

Fuel cost saving

Wood chips: Up to 80% vs LPG as the client utilises their own wood fuel supply

CO₂ saving

Approximately 12 tonnes per annum (chip vs LPG)

RHI payments

A project of this size would gain approximately £5,500 every year for 20 years, index linked to inflation.

Total project cost



5-6 years (combining RHI income & fuel cost saving).

I am extremely pleased to see the boiler up and running. To be able to utilise biomass from various nature reserve management regimes is a great step to becoming more sustainable as a organisation and promoting the use of renewable energy

The Wildlife Trust of South and West Wales is one of 47 Wildlife Trusts across the UK. We are the fourth largest in area, covering from Cardiff and Caerphilly in the east to Ceredigion and Pembrokeshire in the west.

The challenge

There was a drive to reduce fossil fuel costs, as well as to reduce CO₂emissions and be more environmentally friendly through the use of renewable heating.

The Centre also wanted to gain Renewable Heat Incentive (RHI) Payments, to reinvest into the Visitor Centre’s long term future.

Because the existing boiler room was too small to take both the boiler and the fuel store, a novel solution was adopted. The boiler room was re-worked to incorporate a 50kW Guntamatic Powerchip boiler.

Our custom solution

Treco supplied, installed and commissioned the complete system, including the design of the fuel store to meet exacting site requirements.

Project summary

The client was responsible for the construction of the boiler house and wood chip store. Treco installed and commissioned the biomass boiler, working with the local heating engineer to connect to the current heating system.

The district heating scheme included;

  • A 50kW Guntamatic Powerchip biomass boiler
  • Fully automated wood chip fuel delivery system
  • 4m agitator allowing maiximising fuel storage and ensuring less than 3 fills a year
  • A 1,000 litre thermal store
  • High efficiency, low energy modulating main system pump
  • Heat Interface Unit with integrated heat exchanger and heat meter to interface the biomass system to the existing heating circuits
  • Turnkey solution project management
  • Full assistance with RHI application including schematic drawings
  • Commissioning, programming and end user training

More details on this specific biomass boiler used on this installation can be found on the Guntamatic Powerchip page, with further details of our entire range available through the biomass boilers page.

The incentive

As well as fuel cost savings of up to 80%, the installation is now accredited into the Renewable Heat Incentive and the client is now receiving RHI payments. A project of this size would gain approximately £5,500 every year for 20 years, index linked to inflation. The RHI payments and the fuel cost saving ensure that the project is sustainable and financially viable.

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