Case Studies page.
Ada Lewis House on Empire Way in Wembley is an impressive four to eight storey development, comprising a total of
84 residential dwellings, with mix of 27 private and 57 affordable units, is part of the Brent housing and social care
PFI project, an initiative designed to help address the shortage of suitable housing for homeless families in the area.
Main contractor Bouygues UK appointed Asgard Biomass, to design and install a high efficiency communal biomass
system comprising an Evoworld 200kW as the lead boiler and a purpose designed wood 8 Tonne capacity wood pellet store,
both set into the confined basement area of the building.
The pellet store and material handling equipment is located underneath a ramp leading down into the bulding’s
underground car park. A series of steel frames supports sheets to form a continuous ‘V’ shaped hopper along the
length of the store. At the bottom of the ‘V’ there is a full length pressed steel channel that supports a screw auger.
The auger passes through the store room wall, on the plant room side, where it is contained in a steel tube.
At the bottom end of this tube there is a short vertical stub section, through which wood pellets drop and enter into a
second flexible auger. This auger conveys the pellets into the boiler inlet tube.
Access into the pellet store is gained via removable wooden slats located inside the plant room. Inset perspex vision
panels are provided in the slats to give a visual indication of the quantity of pellet in the store.
The installed Evoworld P200 boiler is designed to deliver efficiencies of 94% and is expected to significantly
reduce energy costs and carbon emissions in line with Brent Council’s commitment to sustainable use of energy in
The boiler is also recommended under Section 21 of the CAA for Exemption from Section 20 of the CAA as
suitable for use in Smoke Control Areas.