Grid-scale energy storage systems may make it easier to rely completely on renewable energy.
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.
‘I was the future once.’
To understand what happened to our love of giant radioactive kettles, take a look at cultural theory.
South Australian Premier Jay Weatherill, SA Liberal leader Steven Marshall and SA Best leader Nick Xenophon at a leaders’ debate hosted by the ABC.
AAP Image/Morgan Sette
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?
Blue Planet Studio / shutterstock
The fossil fuel era won't last forever. And a new set of countries will find their reserves of lithium, copper and rare earth metals are in high demand.
The Loy Yang power station ‘tripped’ early in the year, triggering fears of a summer of blackouts.
February is the riskiest time of the year for blackouts, as the nation returns to work and school and soaring temperatures put pressure on the system.
ShaunWilkinson / shutterstock
As coal continues to collapse, large new wind farms are coming online. Electricity generated in Britain is the cleanest it's ever been.
The potential clean energy sources are all around Sydney, just waiting to be harnessed.
Collage by Rocco Furfaro
Sun, wind, waste biomass, geothermal, tides and waves: all these energy sources in Sydney's backyard add up to a zero-carbon energy solution for the city.
The price of new-build renewable energy is expected to fall significantly relative to new-build coal energy in coming years.
AAP Image/Lucy Hughes Jones
The price of renewable energy will fall significantly relative to new-build coal in coming decades, making an all-renewable electricity system more desirable, both economically and environmentally.
Pumped hydro: all you really need is some reservoirs and a big hill.
AAP Image/Lukas Coch
Electricity storage is vital to the stability of a renewable energy grid. The world's favourite form of storage is pumped hydro – and researchers have located thousands of candidate sites.
Nuttawut Uttamaharad / shutterstock
Offshore wind is an expensive business to get into.
Yallourn Power Station in the Latrobe Valley, Victoria.
AAP Image/David Crosling
On Q&A, an audience member said renewable energy is 'now cheaper than coal'. Senator Matt Canavan disagreed, saying renewables are not 'at the moment, cheaper than coal'. Let's look at the numbers.
As more wind turbines have been put in place, the cost of wind energy has gone down.
Dad of T&S
If history is a guide, policies that promote wind power expansion will lead to lower prices – potentially beating fossil fuels in the US by 2030.
Solar PV outstripped coal as the leading source of new electricity generation worldwide last year.
AAP Image/Lukas Coch
Solar PV and wind energy have overtaken coal as the leading sources of new electricity generation worldwide, with falling prices and new storage technologies making clean energy ever more attainable.
The UK is about to miss an opportunity if it tries to take on the giants of the lithium-ion battery industry.
Lessons from the Lone Star State: A surge in wind power on the Texas grid didn’t cause reliability problems (and brought down electricity prices) because regulators improved the efficiency of wholesale electricity markets.
Sarah Fields Photography/Shutterstock.com
Energy Secretary Rick Perry wants to know if wind and solar are compromising the reliability of the grid and hurting coal power. The answer lies in his home state of Texas.
Solar provides tremendous opportunities for emerging entrepreneurs.
Africa's energy potential remains under-exploited, the energy entrepreneur is well-positioned to take advantage of the opportunities presented by the energy sector.
Why were so few complaints about wind farms investigated further? And who made these complaints anyway?
Have the hordes of wind farm complainers all gone shy?
Over a period in which the Australian economy saw around 600,000 additional people get jobs, employment in the renewables sector has been going backwards.
AAP Image/City of Sydney, Damian Shaw
Estimates released by the Australian Bureau of Statistics suggest that the number of direct full-time equivalent jobs in renewable energy activities has continued to fall from its 2011-12 peak.
To manage renewable energy efficiently, all weather variation need to be taken into account.
Relying less on fossil fuels is one of the key challenges of energy transition, and taking weather variations into account can help increase the overall efficiency of a renewable-energy system.
Engineers are hoping to iron out a century-old technology that could reduce shipping emissions.