EPA’s environmental performance

Energy use


Building or stationary energy use is EPA’s biggest environmental impact and accounts for 69%of our overall emissions (based on our 2012-13 greenhouse gas inventory). Since 2005-06 EPA has reduced greenhouse gas emissions associated with stationary energy use by 42%.

This is mostly due to the commissioning of a tri-generation plant at our Carlton head office, which largely uses natural gas to generate electricity onsite. Natural gas has much lower emissions intensity than grid electricity and, given the plant is onsite, reduces the transmission losses that come from getting electricity from the grid.

EPA has implemented many energy saving actions over the last seven years.

Sustainable head office

  • Electricity generated onsite using a natural gas-fired tri-generation plant
  • Under-floor air distribution and demand-based airconditioning
  • Light-filled central atrium
  • Highest energy-efficiency appliances and fittings
  • Sensor-triggered and energy-efficient lighting
  • High-performance double-glazed windows.

Other buildings

  • De-lamping
  • Shift to energy-efficient T5 globes
  • Computer switch-off campaigns
  • Lighting and appliance switch-off policies
  • Insulation of hot water pipes at our Macleod office.

Information technology

  • Rollout of small, energy-efficient ACER L670 ‘Green PC’s’ for all EPA workstations.
  • 82%server virtualisation.
  • Updated virtualisation software on server farm, increasing power management system's capacity to assess workload and maximise efficiency
  • Reduced number of printers (all transitioned over to multifunction devices with duplex capability)
  • 100% of computer monitors are LCD screens
  • ‘Kill’ switches at all head office workstations to allow staff to turn off residual power from computers at end of day
  • Automatic shutdown of computers every night at 10pm
  • Screensavers and sleep mode implemented after 8 and 10 minutes, respectively.

Future actions

After achieving significant stationary energy savings over the last six years, EPA continues to work on ways to reduce stationary energy further, such as:

  • implementation of recommendations in an energy efficiency opportunities report commissioned in early 2012
  • server room airconditioning and ventilation improvements at head office
  • energy-efficient lighting at Macleod office.

Page last updated on 6 Mar 2014