Business & Investment

Energy efficient office buildings

What is an energy efficient office building?

An energy efficient office building is one that is saving energy, has reduced bills and happy, comfortable tenants.


Did you know?

Improving the energy efficiency of your office building can result in energy savings of more than 50 percent!



What are the benefits of an energy efficient office building?

Improving the energy efficiency of your office building can result in energy savings of more than 50 percent – with some buildings capable of producing more energy than they use.

Cost-effective energy efficiency improvements can significantly cut costs for owners and tenants – simple measures can result in approximately $10,000 per annum savings for an average office space of 2,500m2. An energy efficient office building may also mean:

  • lower maintenance bills
  • happy, comfortable tenants
  • reduced energy use and a reduction in costs for owner and tenants
  • increased asset value
  • deferred capital costs and lower maintenance costs (well tuned equipment lasts longer and breaks down less often)
  • increased appeal to tenants and longer lease times
  • future proofing building assets against rising energy costs and regulations
  • reduced greenhouse gas emissions.

How can I improve the energy efficiency of my office building?

  • Using passive measures like shading, insulation and double glazing to reduce the need for air conditioning.
  • Invest in an efficient, appropriately sized HVAC systems that are well commissioned, maintained, and tuned – HVAC accounts for up the majority of energy costs in a commercial building, and an energy efficient HVAC system can save up to 40 percent of these.
  • Install an energy efficient, controllable lighting system that maximises the use of natural light. <7 watts per square meter is considered best practice. Moving to a sustainable lighting system can save you as much as 80% less energy in some cases.
  • Ensure your Building Management System (BMS) allows for fine control of lighting, heating and cooling systems.
  • Use renewable power sources either on site (Solar PV or Solar Hot Water) or off site through the purchase of accredited Green Power.
  • Install lifts that are programmed to prioritise the most energy efficient option and capture energy from their brakes.
  • Use benchmarking tools such as NABERS, Green Star or Calculating Cool to compare your building to other efficient buildings and identify areas for improvements.

An introduction to NABERS

A brief overview of Australia’s most successful environmental program for buildings.