The works were to include the development of a new park 'hub' building, including catering facilities, a park rangers' office, changing facilities, toilets, a visitor centre and an education/ community room, alongside the modernisation of an existing Victorian building that houses a café.
The council was also keen to consider options for the provision of renewable energy through the installation of a micro-hydro turbine in a former water mill.
We were commissioned by Land Use Consultants (LUC) to develop the energy strategy for the new hub building, cha-cha-cha café, and to explore the feasibility of a micro-hydro turbine.
The energy strategy services we provided included:
- Passive low-energy concept design.
- Low and zero-carbon energy options appraisal.
- Development of the energy statement for planning.
- Energy and compliance modelling.
- Financial appraisal of renewable options.
Key features of the new hub building - as a result of our energy strategy services - included:
- Optimisation of the building form, glazing areas and orientation to maximise passive solar gain for daylighting, reduce winter heating loads and promote natural ventilation.
- Thermally efficient building fabric design to minimise heat loss and air leakage.
- Use of innovative external shading devices including large roof overhangs and sliding Corten steel panels.
- Low-maintenance, low-cost and low-carbon heating systems based on underfloor space heating supplied from air source heat pumps working in combination with roof-integrated solar thermal hot water.
- Low-energy lighting strategy based around LED technology.
- 75m2 roof-mounted photovoltaic array.
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Total carbon emissions of the development are predicted to be half the emissions of a similar building built to the 2013 building regulation standards.