Deriving fuel from trees costs more than wind and solar power and it emits more carbon than coal. There are many heated debates about this kind of energy, known as forest or woody biomass.
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Articles on Renewable energy
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Annual water requirements of a PHES-supported 100% renewable electricity grid would be much less than the current fossil fuel system, because wind and PV do not require cooling water.
While wind energy is often perceived as controversial, that may be due to the tyranny and power of unrepresentative anecdotes.
Politicians and economists call for emissions cuts while also embracing free trade – they can’t have it both ways.
Experts expect the wind business to remain brisk in the US and abroad, on land and offshore.
The 2017 hurricane season showed that Caribbean nations urgently need more resilient power grids. But the effects of climate change – including more severe storms – complicate the shift to renewables.
A recent survey of electric utility leaders finds that Trump administration efforts to promote coal energy and roll back air pollution regulations have had little impact on their long-range plans.
The federal government is confident that states will sign up to the National Energy Guarantee, with a final decision now timetabled for August.
There are millions of energy poor people in sub-Saharan Africa who live in cities.
Will the renewable energy transition end up creating yet more greenhouse emissions, as we ramp up the manufacture of wind turbines and solar cells? Not if their manufacture is itself powered by renewables.
As fusion becomes more technically viable, it’s time to assess whether it’s worth the money because breakthroughs in the lab don’t guarantee success in the marketplace.
Solar photovoltaics and wind power are on track to supplant fossil-fuel-based electricity generation by the 2030s. The only thing holding back the renewable revolution is politics.
Barnaby Joyce says he would be ‘100%’ behind the government constructing coal-fired power stations if that would lower the price of electricity.
South Africa’s power utility would do well to consider swapping out expensive new coal-powered capability for renewables.
On Q&A, Minister for Urban Infrastructure and Cities Paul Fletcher said South Australia’s high electricity prices were “the consequence” of Jay Weatherill’s renewable energy policies. Is that right?
Saving power to use later lets consumers, businesses and utilities generate energy when it’s cheap and deliver it when they need it most. There’s not much of it today, but the industry is growing fast.
Innovation in small-scale solar systems and mobile money systems is giving people in sub-Saharan Africa access to electricity at a lower cost than diesel or kerosene.
To understand what happened to our love of giant radioactive kettles, take a look at cultural theory.
Lowering your carbon footprint by living off-grid is a sustainability dream. But how possible is it using current technology?
SA Liberal Party leader Steven Marshall said that state Labor policy had left South Australians with ‘the highest energy prices in Australia’ and ‘the least reliable grid’. Is that right?
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