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net Zero Energy Buildings

Welcome to sustainable architecture and energy efficient buildings

Welcome to the future of building in Australia


Australian buildings consume 26% of the country’s energy and are responsible for 280,000 tons of CO2 emissions per day. The emphasis on the future energy efficiency in the NCC 2022 will be on residential buildings. This will involve the development of enhanced energy efficiency provisions, including an increase in the level of thermal comfort and a whole house energy use budget.

The global momentum is swinging towards the clean energy industries. Nearly Zero Energy Buildings are compulsory in Europe, while new commercial buildings in the US and Canada must follow these principles.

What is an nZEB?

Nearly Zero Energy Building (NZEB) is a building that has a very high energy performance where the nearly zero or very low amount of energy required should be covered to a significant extent by energy from renewable sources produced on-site or nearby.

Where Passive House comes into play

The Passive House Standard is a clearly defined building performance standard, with criteria based on sound scientific evidence. Moreover the Passive House Standard embodies an existing, tried and tested implementation of the nZEB definitions, which ticks all the boxes:

  • It is highly energy-efficient / has a nearly-zero energy demand
  • The energy efficiency level is cost-optimal from a life cycle perspective
  • Renewable Energy Sources (RES) on-site or nearby make a significant contribution.

The Passive House Standard has been offering a proven implementation of the nZEB concept since 1991 and can be applied to any climate. Design tools, training and quality assurance are available to help ensure reliable performance –thus avoiding any “performance gaps”.

How Passive House contributes in reducing CO2 emissions

By using very little energy from the start, Passive House helps preserve limited resources such as gas and oil. It also makes the use of renewables such as wind and solar feasible: efficient buildings can do more with less, meaning that renewables placed on small surface areas suffice to affordably cover any remaining energy demand. With or without the addition of renewables, a Passive House’s high energy efficiency radically reduces CO² emissions. As such, Passive House stands as a significant contribution to climate protection.