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Articles on Green energy

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The home biogas system offers a zero-emissions alternative to paying for fossil gas. Samuel Alexander

Home biogas: turning food waste into renewable energy

Australians love cooking with gas, but what if you could make your own supply, using leftover food waste? It may be time for more households to embrace home biogas – and stop paying gas bills.
This array in Indiana is one of a growing number of “community solar gardens” in the US. Robford15/Wikimedia Commons

Why we need an ‘energy Landcare’ to tackle rising power prices

Without help, lower-income people could miss out on the clean energy revolution – hence the arrival of community projects aiming to boost access to solar panels, batteries and other green technology.
ARENA part-funded the Broken Hill solar plant in New South Wales, which opened this year. AAP Image/ARENA

Cutting ARENA would devastate clean energy research

The Australian Renewable Energy Agency is facing a $1.3 billion budget chop as part of the federal government’s savings measures. But sacrifice the lead agency for green energy development
Wind farms like this one probably wouldn’t exist if the government didn’t provide a hefty subsidy. Shutterstock

Congress shouldn’t revive the failed policy of subsidizing wind farms

Congress passed the wind production tax credit (PTC) more than two decades ago to spur development in an industry still in its infancy. The wind sector has since matured into adulthood, prompting thousands…
Battery costs can make up a quarter of the cost of an electric car such as this Tesla Model S. Shal Farley/Flickr

Affordable batteries for green energy are closer than we think

At the heart of the current debate around energy is the question of storage. In cars, how to build batteries that run for hundreds of kilometres; in electricity, storing energy from solar panels for when…

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