Brook Academy

Project: Brook Academy, Gloucestershire
 
Client: Gloucestershire County Council
 
Project Role: Building Service Engineer
 
Working with: E G Carter & Co Ltd
 
Value: £8M
 
Sustainability: 100% Energy Offset, A+ Rated EPC

Brook Academy is a brand-new 3000m2 state-of-the-art secondary school specifically catering for pupils with behavioural special needs. The £8m new build provides facilities for all aspects of the curriculum, and includes a Motor Vehicle Workshop, DT Workshop and Hair & Beauty Suite, alongside traditional teaching areas such as science labs, food technology and music rooms.

The school has been designed to achieve a 100% offset in regulated CO2 emissions, calculated through Part L2a(2013) of the Building Regulations, and incorporates an air source heat pump as the primary heat source, coupled with a traditional gas-fired boiler in a hybrid configuration. Heat demand of the building is minimal thanks to thermal fabric and air tightness far exceeding the building regulations requirements.

Space heating is provided by an underfloor heating system to maximise the coefficient-of-performance of the heat pump. Ventilation to classroom areas is provided by hybrid ventilation units with demand-controlled ventilation and ultra-low SFPs to temper supply air in winter and provide free-night cooling and purge ventilation to limit summertime overheating.

Energy offset is provided by a 108kWp photovoltaic array comprising 284 high efficiency panels and generating an estimated annual yield of over 100,000 kWh. Energy generated from the array contributes (and at times exceeds) the total building electricity demand and will feed the air source heat pump and electrical vehicle charging as well as the building general power and lighting energy consumption.

The sustainability features all add up to achieve a 100% offset in regulated CO2 emissions, resulting in an A+ rated (Net Zero) EPC score.

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