Softwood will be chipped and dried on site before being fed via conveyors into a series of 10 gasifiers. A superheating process creates the required gas to power turbines that feed energy back into the grid.

Acharn biomass facility panoramic

Preparing a hillside site

The first phase of the project was to construct an access road, junction upgrade and carry out clear felling of the timber growing on the hillside.

Initial earthworks involved a substantial cut and fill operation so that a platform on which to construct the facility could be built.

Due to the properties of the existing soils we had to carry out extensive lime stabilisation to improve the bearing capacity of the formation. In addition, all rock excavated from the site was processed and reused in the construction of the platform and on-site roads.

We constructed a series of 6m deep reinforced concrete bunkers to house hoppers for the dried, chipped softwood that is then fed into the gasifiers via conveyors.

As part of this project we are building a 1200m2, 13m high steel framed structure that will house the gasifier units and associated process plant along with a substation and all associated plant and equipment to support the facility.

 

Related news

  • Planning submitted for another 315 homes...

    Planning submitted for another 315 homes...

    Urban Union and Barton Willmore have submitted plans for the next phase of regeneration at the Pennywell Living development.
  • Building begins on new council homes in ...

    Building begins on new council homes in ...

    North Lanarkshire Council’s latest sod cutting event marked a new housing development at the former Old School Court in Coatbridge.
  • Plans submitted for new neighbourhood in...

    Plans submitted for new neighbourhood in...

    Robertson Partnership Homes, Redco Slackbuie Ltd and Caledonia Housing Association have submitted plans for 67 new homes.

Related blog posts

  • Offsite manufacturing: installing windows in closed timber panels

    Offsite manufacturing: installing windows in closed timber panels

    How offsite manufacturing techniques, in particular installing windows in closed timber panels, benefits construction.
  • Back to the floor: engineering apprenticeships

    Back to the floor: engineering apprenticeships

    Robertson Engineering Services Managing Director, Darren Clarke, meets with mechanical and electrical engineering apprentices.
  • A route in to modern apprenticeships

    A route in to modern apprenticeships

    Robertson’s Dundee office has seen various young people start apprenticeships and progress in their careers in the past few years.