Browsing the "electricity" Tag

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Microgrids: how to keep the power on when disaster hits

Bushfires, storms and floods regularly leave thousands of Australian homes and businesses without power. Sydney’s wettest weekend in three decades left more than 130,000 households without power on Sunday. South Australian storms two weeks ago blew over the transmission towers connecting the state to the national energy grid. The Royal Adelaide Hospital was among the buildings […]

July 20th

Renewable Roundup: Microgrids in Puerto Rico

Trump hates Boricuas/Puerto Riqueños at the best of times. In addition, FEMA is, by law, not permitted to rebuild the storm-shattered energy grid in PR with distributed solar and wind power, our topic today. Malignancy plus mandatory foolishness pile disaster on each natural disaster. It is going to take Joe Biden’s people years to get […]

June 12th

China’s power sector could be 10% cheaper in 2030 with more renewable wind and solar energy

The costs for solar, wind and battery storage have dropped markedly since 2010 and are expected to decline further in the near future. This rapid fall in costs could have a large effect on energy system investment and policies, but has not been fully captured in energy modelling. This is particularly relevant for China, which is now debating […]

100% Renewable Energy: The emerging power of microgrids

Over many decades, the centralized power grid — a one-way flow of electricity, generated by large, remote power plants and distributed over miles of transmission lines to homes and businesses — succeeded in delivering electricity across continents to billions. But in recent years the system’s shortcomings have become increasingly evident. By Justin Gerdes Ensia The […]

Renewable Roundup: Solar and wind dominate new energy installations (even after the Coronavirus)

Yet another tipping point passed in new renewable electricity installations. We have to finish off finishing off coal, then the gas Ponzi scheme, and ramp up EV usage, helped by covid-19, fracking bankruptcies, the global oil and gas price wars, increasing divestment…and of course the fact that renewables are cheaper than destroying the planet—I mean, […]

May 9th

What does it mean when the price of solar energy is negative? (Get paid to charge your EV – or make hydrogen!)

Denialists complain bitterly about the variable output of wind and solar energy systems. But for consumers, that means that the cost of electricity is necessarily negative sometimes. You get to arbitrage your recharging, if your government does not interfere. Others get to use negatively-priced energy to make hydrogen from water, as a form of energy […]

May 7th

Sweden closes last coal plant – TWO YEARS ahead of schedule

Go bye-bye! It has been pleasant to report more and more countries taking the Pledge, but it is much sweeter to see them achieve it. Coal first, then gas and oil, as demand for each collapses. Belgium first, then Austria, then Sweden, then… Sweden Shuts Down Its Last Coal Plant Two Years Early By Mokurai […]

May 5th

Last coal fired power plants closing in NY and UK

The end of burning coal to generate electricity is continuing. In the UK, two large coal-fired facilities have been closed recently — Fiddler’s Ferry in Cheshire and Aberthaw in Wales. Fiddler’s Ferry was first commissioned in 1973 and had a peak capacity of 2,000 megawatts. Aberthaw was rated at 1,560 megawatts. By Steve Hanley Cleantechnica […]

April 2nd

Coronavirus Crisis: 575 groups urge utilities to halt electricity and water shutoffs!

More than 575 utility justice, labor, faith, consumer and environmental groups urged state governors, mayors and utility regulators today to put a moratorium on electricity and water-utility shutoffs in response to the coronavirus crisis and resulting job losses, according to a press release from the Indigenous Environmental Network and four other groups. By Dan Bacher […]

March 22nd