Reduction In Energy
Objective – To make a material reduction in energy consumption and operational greenhouse gas emissions to enable Melbourne Airport to progressively move towards carbon neutrality.
Melbourne Airport requires a significant amount of energy to operate its facilities. A number of energy audits have been conducted to identify energy-intensive activities and subsequent energy efficiency opportunities. Since 2008-2009 Melbourne Airport has reduced its CO2 emissions by seven per cent per passenger. Examples of where energy saving measures have been implemented at Melbourne Airport can be seen below.
Terminal 3 has been retrofitted with energy efficient LED lighting, to minimise electricity usage. This was coupled with a reflective tiled floor to reduce the amount of lighting required. Melbourne Airport have also installed LED lighting in the new staff car park, completed in early 2013 and are committed to improving new and existing lighting to be more efficient. footprint.
The IT department has developed environmental guidelines to help with purchasing of electrical equipment. These guidelines take into account a life cycle costing policy which includes a sustainable procurement strategy. This assesses the manufacturer’s commitment to sustainability, minimal resource consumption and an end-of-life policy. An example is the KyotoCooling wheel system which provides optimised cooling for Melbourne Airport's data centre and provides energy savings of up to 85%.
After a successful trial proving Skycool Paint’s ability to reflect the heat from the sun; it was applied to the roofs of T2 and T3 as an initiative to reduce the cooling costs of the Melbourne Airport terminals. The water-based acrylic paint works by having a high reflectivity therefore reducing the amount of solar energy (heat) being absorbed by airport buildings. As less heat is absorbed into the terminals there is a reduced demand for air-conditioning, resulting in a reduction of cooling costs by 30%.
Dyson Airblade hand driers were installed in the airport bathrooms resulting in an 80% reduction in energy consumption from traditional hand driers as well as saving paper towel.
Melbourne Airport is also constructing a new 8MW Tri-generation plant onsite to meet a growing energy demand with a cleaner energy source, due to be completed in November 2014. The Tri-generation facility works by producing energy through burning natural gas; the combustion of gas produces steam which passes through a turbine to produce electricity. The excess heat is then used to service the heating and cooling system used in the terminals. It is estimated that the Tri-generation facility will reduce CO2 emissions by 920 000 tonnes in the 15 year life design period.
Melbourne Airport is also working on a Environmental Design Guide for new construction projects; which will include the possibility of incorporating renewable onsite energy sources. It is the airport's aim to have 15% of operational energy consumption to be generated or purchased through on-site renewables or accredited green power schemes by 2018.