We remain focused on improving the energy efficiency of our building portfolio and shifting to low carbon energy sources. Annual emissions from the energy we use in our Australian and New Zealand building portfolio has reduced by more than 19% over the last five years. This reduction has been achieved in spite of significant business growth over the same time period.
There has also been a marked shift in where our energy in used. At the end of September 2011, ANZ’s Australia and New Zealand energy-related emissions profile was split across the commercial, retail and datacentre building stock as 43%, 25%; and less than 33% respectively. Comparing this to our current profile, datacentres are now responsible for 39% of energy usage while commercial offices have reduced to 30% and retail remains relatively stable. We have two datacentres in Victoria.
The changing profile illustrates the significant structural shift that has occurred across the banking sector over the last five years to satisfy our customers’ online banking needs and expectations. With the majority of our customers located in Australia and New Zealand this has necessitated significant expansion in local datacentre capacity. Over the same time, we managed to drive major reductions in our energy-related footprint across our commercial and retail portfolios.