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.
Solar panels being installed in new housing under construction in Sacramento, Calif.
AP Photo/Rich Pedroncelli
Environmentalists and climate hawks are cheering, but many experts aren't excited about the state making rooftop solar panels mandatory on most new homes beginning in 2020.
Ammonia production is one of the most energy-intensive industrial processes on the planet.
Producing ammonia, which is a key ingredient in fertilizers, is one of the world's most energy-intensive chemical manufacturing processes. Now there's a new low energy option in development.
A woman sells charcoal in Nairobi, Kenya.
There are some big misconceptions about the charcoal sector and its role in environmental damage
Mass. Gov. Charlie Baker signed a comprehensive energy law in 2016 that authorized the development of new offshore wind and hydroelectric projects.
Massachusetts governor’s office
Several states, including Massachusetts and Rhode Island, have developed ambitious renewable energy targets that hinge in large part on getting their power from turbines stationed in the water.
China has its eye on technological dominance.
Now is the time for China to put its technological and diplomatic skills on display in its quest for superpower status.
Enviva’s wood pellet plant in Ahoskie, NC.
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.
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.
Wind turbines are becoming as American as haybales.
While wind energy is often perceived as controversial, that may be due to the tyranny and power of unrepresentative anecdotes.
chuyuss / shutterstock
Politicians and economists call for emissions cuts while also embracing free trade – they can't have it both ways.
Rhode Island Gov. Gina Raimondo, left, speaks with Deepwater Wind CEO Jeffery Grybowski in 2016.
AP Photo/Steven Senne
Experts expect the wind business to remain brisk in the US and abroad, on land and offshore.
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.
Josh Frydenberg met with state energy ministers in Melbourne the latest round of discussions over the National Energy Guarantee.
AAP Image/Luis Ascui
The federal government is confident that states will sign up to the National Energy Guarantee, with a final decision now timetabled for August.
Tesla is installing one of the world’s largest solar arrays at its Gigafactory 1 in Nevada.
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.
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.
Barnaby Joyce said the government building a coal-fired power station would be consistent with its existing policies.
Barnaby Joyce says he would be '100%' behind the government constructing coal-fired power stations if that would lower the price of electricity.
Eskom’s pilot wind-farm facility at Klipheuwel. The utility must seriously consider in-house renewable projects.
South Africa's power utility would do well to consider swapping out expensive new coal-powered capability for renewables.
Minister for Urban Infrastructure and Cities Paul Fletcher, speaking on Q&A.
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?
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.