Queenstown Airport uses a large amount of electricity due to the scale of the site. The majority of this usage is through the HVAC system and lighting. DETA was consulted with to investigate energy usage on site and to identify possible energy management opportunities.
Through analysis of SCADA data, consultation with key staff and onsite inspection, several energy management opportunities were identified. These ranged from installing a ground source heat pump to improved lighting design through to control period adjustments.
Energy savings of around 300,000 kWh were identified for projects with a payback of less than five years, enough energy to drive an electric car around the world sixty times, and about 10% of the total site usage.