A suburban house with photovoltaic solar panels and a solar hot water system on its roof

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.

A domestic wind turbine in motion.

A domestic wind turbine in motion.

A large set of solar panels installed on the roof of a federation-style house.

A large set of solar panels installed on the roof of a federation-style house.

Energy effecient light bulb in ceiling light fixture.

Energy effecient light bulb in ceiling light fixture.

A tall cylinder contains a heat pump in the top third and a water tank in the lower two thirds. Warm air flows into the heat pump and cold air flows out. Cold water flows into the water tank and hot water flows out. The unit has an electronic controller which is connect to a wall power socket.

A tall cylinder contains a heat pump in the top third and a water tank in the lower two thirds. Warm air flows into the heat pump and cold air flows out. Cold water flows into the water tank and hot water flows out. The unit has an electronic controller which is connect to a wall power socket.

A number of bicycles parked in a common area; many with child seats.

A number of bicycles parked in a common area; many with child seats.

A room full of batteries that are part of a battery bank.

Batteries and inverters

The roof of a house has both photovoltaic panels and solar hot water panels installed.

The roof of a house has both photovoltaic panels and solar hot water panels installed.


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