Renewable energy

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To get to zero emissions, we’ll have to reform our energy sector away from fossil fuels. ccdoh1/Flickr

Australia can stop greenhouse gas emissions by 2050: here’s how

To avoid dangerous climate change there is a finite amount of greenhouse gas emissions, in particular CO<sub>2</sub>, that we can add to the atmosphere - our global carbon budget. If we use our budget wisely, we have until about 2050 to transition to zero net emissions. But how do we get there?
Packing heat: concentrating sunlight into a reactor to split H2O and CO2 – a step toward making liquid fuels. Courtesy of Professor David Hahn, University of Florida

Solar fuels: how planes and cars could be powered by the sun

Rooftop solar power is exploding in the US but some scientists are pursuing a radically different route in renewable energy: storing solar energy as a liquid fuel.
Wind energy will not cost Australians billions of dollars. David Clarke/Flickr

How much does wind energy cost? Debunking the myths

Wind energy is already competitive with fossil fuels, will reduce electricity prices for consumers, and will play a large role in reducing Australia's greenhouse gas emissions.
Diminishing returns: how long should experts be expected to search for health problems no one has proved are real? EPA/Horacio Villalobos/AAP Image

More research is good, but not if wind experts are told what to find

"More research needed" is a familiar cry in science. But in the case of the Senate's call for yet more scrutiny of wind farms, there are signs that experts are being ushered in a preconceived direction.
Hepburn Wind in Victoria is Australia’s largest community renewable energy project. Hepburn Wind/Flickr

Communities are taking renewable power into their own hands

Australia, like much of the rest of the world, is in the midst of an energy transition, driven by falling demand and uptake of renewables. Community energy is one way we can mange this transition to the benefit of all Australians.
South Australia’s wind farms have coped without baseload power before - they can do it again. Fairv8/Wikimedia Commons

Coal closures give South Australia the chance to go 100% renewable

Coal closures announced this week in South Australia will cause employment pain, but could also help pave the way for the state to go 100% renewable - something that modelling suggests is eminently possible.
Since its launch in 2011, South Africa’s renewable energy programme has brought a diversity of new players and sources of investment to the country. Reuters

South Africa’s renewable energy plan needs a close eye

South Africa has won global recognition for its renewable energy programme, but will it succeed in balancing the demands of financial and commercial soundness, and the transformation agenda?
Russian President Vladimir Putin (right) is looking to provide his South African counterpart, Jacob Zuma, with nuclear energy. EPA

Why nuclear power would be a bad option for South Africa

Instead of spending time trying to make nuclear energy a possibility, South Africa should look to forms of renewable energy instead.
A new Grattan Institute report suggests solar panels in Australia might be more trouble than they are worth. Duncan Rowalinson/Flickr

Given the value of emissions cuts, solar subsidies are worth it

The Grattan Institute has reported that the costs of solar panels have outweighed the benefits by almost A$10 billion in Australia. But the real benefits of cutting greenhouse emissions are much larger.
Wind farms in the pipeline could fill out Australia’s renewable energy target, leaving no room for other sources. Lawrence Murray/Flickr

Renewable energy deal gives no certainty over coming decades

While Australia has reached a deal on the Renewable Energy Target, there's no long-term certainty for the sector yet.
Countries should make pledges to fund low-carbon research - such as developing solar technology - and development as part of global climate talks. University of Salford Press Office/Flickr

What’s missing from our climate pledges? Low-carbon R&D

Countries will take emissions reduction pledges to international climate talks in Paris at the end of this year. Those pledges should also include funds for low-carbon R&D.

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