The latest research suggests that in Australia, rooftop solar photovoltaics are more likely to be adopted by middle-class households.
Households that are most likely to go solar are those that can afford solar panels, but aren't so rich that they don't have to worry about their electricity bill at all, says a survey of 8,000 homes.
The Khi Solar One concentrating solar power plant in South Africa.
Solar power technology has huge potential for Africa. But there are some barriers.
Solar lowers prices and shifts when daily peak demand hours are.
Large-scale solar and wind tend to push energy prices down, which sounds great as a consumer. But that makes keeping the grid in constant balance harder.
Rising seas, harsher weather, rainier days. The impacts of climate change make it harder for Caribbean countries to plan their transition toward renewable energy sources.
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.
Block Island Wind, the first offshore wind energy project in the U.S., started operation in 2016.
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 coils winding facility building in France, where a global effort to build the ITER fusion energy reactor is underway.
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.
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.
Looking through semitransparent cells – one day these could be big enough to make windows.
Solar windows would need to trap enough light to generate power, while letting through enough to keep buildings light. Thankfully, newly developed semitransparent cells offer to do just that.
Puerto Rico’s power utility, PREPA, has been decimated by years of scarcity and bad management. But will privatizing it really turn the lights back on for Puerto Ricans?
AP Photo/Carlos Giusti
Many Puerto Ricans are happy to see their broke power utility sold off to whoever can get the lights turned back on. But privatizing the island's energy grid may bring more problems than relief.
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.
Now that panel costs in U.S. will go up, will reflectors make a comeback?
Joshua M. Pearce
Raising the cost of solar panels coming to the US could rekindle interest in a simple but potentially significant technology: solar reflectors.
Sights like this Brooklyn rooftop covered with solar panels with a view of the Manhattan skyline have become more commonplace amid a U.S. renewable energy industry boom.
AP Photo/Mark Lennihan
Slapping duties on imported panels is unwise.
Diatoms - like those seen under a microscope here - can teach us a lot about harvesting light.
Diatoms' tricks may offer new insights that keep solar cell energy running efficiently and robustly throughout their processes.
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.
If Caribbean governments can’t afford to rebuild their islands, maybe big tech firms can?
Tesla, China and Richard Branson are among those offering to help Caribbean nations rebuild – and do so in a greener, more resilient way – after the devastating 2017 hurricane season.
A solar and battery-powered microgrid got San Juan’s Children’s Hospital quickly back online after Hurricane Maria.
Yes, Puerto Rico and any other storm-vulnerable location could benefit from on-site solar and battery backup, but it's unrealistic to say these microgrids are enough to power the island.
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.