implementation

Implementation of renewable energy systems at local level can be fraught with technical problems such as impact on building aesthetic and most importantly, planning requirements which impair system performance. After careful consideration, the renewable energy systems deemed suitable and chosen for this demonstration were: type (i) are those that reduce energy demands and type (ii) are those that generate electricity to meet some of these demands.
The 3 passive (type i) components were:

 advanced glazing, including a triple glazed double low e coated, argon filled component, a light redirecting component and a variable transmission component;
 daylight utilisation through luminance based luminare control; and
  transparent insulation with integral shading.

The 2 active systems (type ii) consisted of:
 facade-integrated photovoltaic cells with heat recovery: and
 roof mounted, ducted wind turbines with integral photovoltaic aerofoils.

Based on detailed energy simulations using ESP-r system (Clarke 1995), it was concluded that the passive components had the potential of reducing annual energy demands by up to 64%, relative to an initial best practice compliant design hypothesis. It was also concluded that the active components had the potential to match a significant portion of residual demand.