Why dry woodfuel?

We all know that water doesn’t burn, we also know that the energy embodied within biomass fuel is proportional to its moisture content.

Traditionally wood is seasoned using natural resources; the sun and the wind, however seasoning, by definition, involves time.

Innovation and german engineering have resulted in the development of energy efficient drying systems to speed up this natural process utilising waste heat from a variety of heat sources and for a variety of biomass wood fuels.

Drying wood from 60% to 20% increases its calorific content by 245%.

Achieved in 2-3 days for chip* and 5-10 days for logs**.

All of our drying systems are approved by Ofgem as eligible use of heat for RHI purposes and we strive to ensure all our clients maximise their on-site and local resources to ensure the thermal energy used to dry biomass is either waste heat or heat derived from waste biomass.

Every part of the biomass supply chain benefits from dry fuel; processing is made easier/faster, transportation is more fuel efficient by transporting wood not water and combustion is optimised but burning dry fuel. Wood fuel provides a sustainable alternative to fossil fuels.

  • 1kg of freshly harvested wood @ 55% has around 2kW however at 20% m/c it's around 4 kW/kg therefore the having dry woodfuel is essential both for efficent use and efficient transportation/delivery.
  • Whilst sustainably managing our woodlands, there are a number of outputs, firstly structural grade timber, which in itself is often kiln dried, then waste from a tree that aren't suitable for structural wood, provide fierwood logs, and the branches, milling offcuts and thinings can be chipped for woodchip fuel.
  • The demand for woodchips and other biomass fuels has risen hugely inlight of the government's Renewable Heat Inncentives (RHI).
  • It can take between 9-18 months for wood to air season naturally, and as little as 1-2days for woodchip when force dried and essentially it provides fuel suppliers and woodland managers the ability to convert biomass fuel into a usable and transportable commondity without the often costly need for long term storage or multiple handling and gives the ability to react fast to changes in seasonal demand.
  • We promote and support the appropriate use of driers where waste heat or lowgrade biomass material can be utilised to provide the thermal energy required to speed up this process. For example integration into waste heat from AD and CHP facilities as well as the use of biomass boilers that can cope with even lower grade therefore lower value woodchip or other biomass fuels.

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