We’re here to help. Try and search for the information you want with the field below, browse the articles below, or get in touch.
Already have solarZero? Sign in to mysolarZero for FAQs and support customised to your system.

Browse articles

Our experts know everything under the sun about solar

Talk solar with our experts
Ideal if you’re thinking about solar and would love to have a chat.
Our experts know all about solar
All our experts offer both practical and technical advice.
Our solar advisers will assess your place for solar
To give you personalized solar advice.
Roof insulation can save you money on your home heating costs


Good quality insulation helps keep your home warm in winter and cool in summer, making it easier and cheaper to heat properly. Start with the ceiling, followed by underfloor and walls. Without doing major structural renovations for thermal efficiency, installing thermal-backed curtains is possibly one of the best ways to save energy in the winter time. It also pays to use draft seal around windows and doors to stop cold air getting in and warm air escaping.

Water heating

Hot water heating accounts for around a third of your energy use and costs the average household about $650 a year. You may be using more energy than you need to heat your water. It is important that the cylinder’s thermostat is set correctly. It should be 60°C at the cylinder (to prevent the growth of legionella bacteria) and a maximum of 55°C at the tap so you don't get burnt (children are particularly vulnerable). An extra 10°C on the thermostat could be costing you another $25 per year with a modern cylinder, or twice that with an older one.

Control when your hot water is heated with our solarZero apps
Drying clothes outside is one way to reduce moisture inside your home.

Reduce moisture

It's much harder to heat damp air, so get rid of moisture in your home, especially when you're cooking and washing. Drying your clothes outside is a good way to save money on power. Install extractor fans in your kitchen and bathroom and open windows to improve ventilation.

Replace old whiteware

Buy appliances based on their quality, features and energy rating - the more stars on the label, the more energy efficient the appliance is - and annual energy consumption (kWh per year). It also helps to read user feedback on features and quality. Modern fridges and freezers are much more energy efficient than models made 10 years ago. A modern family fridge/freezer with a 3½ star Energy Star rating label costs around $100 per year to run. A 10-year-old fridge, of the same size, could cost twice as much. Normally, it is recommended you use the cold water setting on washing machines to save energy. However, if your hot water cylinder is powered by solar, you've got the advantage of being able to use heated water for washing during the daytime without extra cost. So, look out for washing machines and dishwashers that can take a hot water input of up to 60 deg C. Inductive hobs in the kitchen may also be worth investigating.

Quality appliances are more energy efficient, saving you money in the long run.

Services and support

A specific question in mind or just want to know more about solar?

Existing customer. Need help?

Learn more

Saving money and the planet with solarZero
Revolutionising solar
Our customers
A revolutionary new way to power your home
Solar think tank
How solar works
Thoughts on power prices #1
Thoughts on power prices #2
Thoughts on power prices #3