Core Network members, the RSPB, are soon to host a ‘biomass to bioenergy’ project demonstration in Kent. We catch up with the charity’s Bioenergy Project Manager, Sally Mills, to find out more about the project and what it means for habitat conservation across the UK. 

 

What exactly is biomass and how does it relate to conservation?

 

The process of managing heathland, wetland and other habitats leads to plentiful amounts of surplus organic material. This surplus is typically viewed as a barrier to habitat management; it needs to be disposed of, and there’s a lot of it. But it could become something of real value if we think of it as biomass: a fuel to create energy. RSPB has been working on a series of projects with the Department of Energy and Climate to make the most of this underutilised resource and turn a challenge into an opportunity.

 

Can you give us an overview of the projects? 

 

Initially, we were exploring the potential of converting wetland materials into bioenergy. We’re now conducting trials into the use of heathland materials. The challenge for all sites, whether they are wetland or heathland, is to tackle the end-to-end process. We’re aiming to develop a complete chain from harvesting the material in the field to converting it into energy. The result will be the development of a portfolio of techniques that can be applied to many sites across the UK and Europe.

 

What equipment and processes are involved?

 

Specialist harvesters such as the Pisten Bully and Softrak machines are used to cut and collect materials in the field. It then needs to be processed or prepared in some way before it can be used as a fuel. We’re exploring conversion techniques including medium scale anaerobic digestion, AgBag storage and drying, and the use of a bio-char kiln both to dry the material and produce bio-char. We’re also trialling a mobile briquetting unit.

 

What are the implications for conservation work across the UK?

 

Thousands of hectares of the UK are managed for the benefit of nature conservation, from lowland wetlands to upland acid grasslands. Having a use for harvested material as a source of energy will help to deliver maximum benefits for nature by facilitating habitat management, improving areas for biodiversity, increasing the potential for habitat expansion and helping to reduce carbon footprint. There could also be economic benefits where bioenergy can be used to generate income.

 

Network members will be heading to Kent next week to take a look at the project and talk to practitioners. If you are an existing member, login for more info about this project and to contact Sally directly. Alternatively, you can fill out this form to join the Network.