26 Jan 2016

The creation of a comprehensive policy framework including the lowering of transaction costs, increased energy price signals and targeted subsidies would mean that almost all of the German building stock, except for residential buildings younger than 20 years, could be renovated with a positive pay-back within the next 15 years.

01 Dec 2016

In Europe, the latest updates in the directive on the energy performance of buildings introduced two fundamental concepts, namely the cost-optimal energy requirements and the nearly-zero energy buildings (nZEB). Although these concepts are related, the cost-optimal is focused on costs while the nZEB prioritise the energy performance and the use of renewable energy harvested on site.

Journal article
16 Jan 2015

As the frequency and intensity of heatwaves are growing in Australia, strategies to combat heat are becoming more vital. Cities are exposed to urban heat islands (UHIs) due to excess urbanisation. In this study, a definition of urban heatwave (UHW) is conceptualised to investigate the combined impacts of heatwaves and UHIs.

Journal article
20 Jan 2015

This research reports on an experiment on two small-scale metal roofs in Sydney and Rio de Janeiro to assess the thermal performance of portable small-scale modules. The findings are that green roof retrofitting could lower the cooling energy demand considerably.

Journal article
05 Oct 2017

For building owners, the renovation process can be a hassle, shaped by the ambiguity of the measures to implement. Uncertainty is one of the reasons why the renovation rate continues to linger around 1% and private investments remain limited.

Briefing paper
10 Apr 2018

The iBRoad project aims to eliminate barriers to deep renovation by developing an Individual Building Renovation Roadmap for single-family houses. The tool provides a customised renovation plan over a long-term period (10-20 years), which considers the occupants’ needs and specific situations (e.g.

11 Apr 2018

Analysis of energy renovation costs, as provided by the French Observatory for Low Energy Buildings, identified the following:

Briefing paper
09 May 2019

This report covers the activities of utilisation project “Energy efficient swimming pools – engagement and utilization”. This involved project partners: School of PV and RE Engineering, UNSW, Simply Better Pool Savings, and Randwick Council.

07 Jun 2018

The recent European energy proposals for the revision of the Energy Efficiency and the Energy Performance of Buildings Directives emphasize the importance of driving investments into the renovation of building stocks and stimulating retrofitting demand.

Conference paper
29 Jun 2017

Several standards regarding energy consumption have emerged in the last decade, defining increasing requirements, and culminating with the recent emergence of the “nearly zero energy” buildings concept, as described in the Energy Performance of Buildings Directive1.

28 Feb 2018

Roughly 97% of the European Union (EU)’s building stock, amounting to over 30 billion m2, is not considered energy efficient, and 75 to 85% of it will still be in use in 2050.

15 Sep 2018

In general, a household is said to be in energy poverty when its members cannot afford to keep adequately warm. The combination of low incomes, energy prices and inefficient housing leads to energy poverty.

Fact sheet