Lighting One of our most significant achievements this year under our 'Use Less' pillar was a complete transition to LED lighting on CityLink’s Bolte Bridge in May 2014. This change is expected to result in an 89 per cent reduction in energy use and require significantly less maintenance of lighting over its lifetime (see Casestudy: Lighting up the Bolte Bridge).
We are also continuing to investigate how we can introduce LED lighting to the Lane Cove Tunnel in Sydney. The project has so far proved challenging for two reasons. Firstly, the tunnel’s existing light fittings are not compatible for LED lights, and secondly, there are strict standards that must be met for tunnel lighting. As always, safety is our first priority, so we will look for a solution that meets these important standards.
Tunnel ventilation fans For the past year, we have been running trials operating the Lane Cove Tunnel’s fans in ‘low ventilation mode’ overnight. This delivers more than 0.7gWh (or 3-4 per cent of the tunnel’s total consumption) in energy savings, while also meeting our approval conditions and operating requirements. We are continuing this activity in FY15 and will report on its performance in next year’s sustainability report.
Offices Energy use from our offices represents just 2 per cent of our total consumption, but we are committed to reducing that amount wherever we can.
In May 2014, our Melbourne headquarters moved to 727 Collins Street, where over 450 of our employees are based. At this new site, we have committed to achieving a 5-star NABERS energy tenancy rating1. NABERS is a national rating system in Australia that measures the environmental performance of Australian buildings, tenancies and homes.
We have already implemented several best practice initiatives during the office fit-out, including installing LED lights in all our meeting rooms. We aim to get accredited in FY15 and will be working over the next year to identify further opportunities for reducing our energy consumption.
In addition to our tenancy rating, we are also involved in ensuring that the building achieves its 5-star NABERS energy rating. The building already has a number of measures in place to reduce its overall footprint, including destination control lifts and LED feature lighting and down lights. Transurban is continuing to engage with the building’s management and designers to track the building’s energy performance.
1NABERS is a national rating system in Australia that measures the environmental performance of Australian buildings, tenancies and homes.