Climate change is arguably the greatest challenge faced by humanity. Global greenhouse gas emissions from fossil fuel use continue to grow each year, despite attempts to limit them through mitigation and energy efficiency measures. The effectiveness of these measures has been largely offset by population growth and increasing uptake of more affordable electrical appliances. Includes case studies.

Your Energy Savings provides information about saving energy, saving money and available government assistance.

Passive solar heating uses free heating direct from the sun to dramatically reduce the estimated 40% of energy consumed in the average Australian home for space heating and cooling (DEWHA 2008). Most Australian climates require both passive heating and cooling. Many heating and cooling design objectives overlap but different emphasis is required depending on your climate needs.

Heating and cooling are the most energy hungry activities in a home. Effectively managing your household's heating and cooling can save you a lot of money. Getting passive solar design correct is vital. Find out more about household heating and cooling solutions that can make a big difference all year round

Building a more energy efficient home means you can reduce the amount of energy you use and lower your cost of living. From the layout of your rooms to the position of your windows, this interactive tool shows you some key design features to help you build a more energy efficient home.

Sustainable, smart and responsive to site, this beautiful South West home shows that bigger isn’t always best.

These tubes, developed by Naked Energy, in Guildford, England, are a kind of hybrid solar-energy contraption that make more efficient use of the sun's energy to produce both electricity and hot water.

Usually when you think of solar hot water, panels and a collector tank installed on a roof spring to mind – a traditional solar hot water system. A heat pump is a different way to use renewable energy to heat water – that doesn’t need solar panels!

If you keep up with the latest news in home improvement, you've probably noticed that in-floor radiant heating has moved back onto the front page. What you may not know, though, is whether this type of heating makes sense for you--either as a retrofit in your present house or in the home you hope to build one day.