Energy Assessments, Cullen

The Cullen Community & Residential Centre provides a range of indoor and outdoor facilities for community groups, activities and social events, as well as affordable group accommodation for visiting guests.

Constructed in 1876, the building represents a challenge to ensure it can meet future legislative targets for Net Zero Carbon.  Working as a Design Team comprising Power Circle as Project Managers, Collective Energy as Architects and KJ Tait Engineers as M&E specialists, the Team have proposed a range of measures to be implemented to support an application for CARES funding.

The first stage of the assessment was to investigate the long term energy demands of the building in terms of heating, hot water, pumps and small power usage.  This was achieved via information provided by the Client which was then built into an IES energy model of the building to understand both consumption and energy demand over a typical year.

Working with the Architects, options for upgrading the building fabric were investigated and costed via the Passivhaus Planning Package.  This stage was seen as essential to ensuring any low carbon heating system could work efficiently.

The current heating system is via an oil fired boiler.  The short term proposal is to install zone valves to allow individual zones to operate to suit occupancy.  There are 6 zones with different occupancy profiles.  The addition of these zone controls allows energy savings to be realised in particular by isolating the residential accommodation which is occupied for only a short period and generally in the summer months.

The long term proposal to enable the Centre to achieve its target to be a Net Zero Carbon building includes:

  • A comprehensive improvement in the thermal insulation properties of the external fabric and windows.
  • Heating provided by means of a ground source heat pump installation.
  • New PV panels on roof to meet base electrical load on EV chargers via battery storage.