Is the U.S. Electric Grid Ready for a Renewable Energy Future?
Photo courtesy of Shutterstock
Several states have solar and wind power goals in mind for the future, but can the grid handle them? That's a question scientists at the National Renewable Energy Lab (NREL) say must be answered if the nation could significantly replace coal, oil and natural gas with renewables.
Douglas Arent, the executive director of the Joint Institute for Strategic Energy Analysis at NREL, told NPR that "you could meet demand every hour of the year, with up to 80 percent of [power] coming from renewable resources by the middle of the century," but the nation's infrastructure simply isn't ready.
"The grid would have to be much more flexible," Arent said. "The utility model of the future would have to look different. And of course, in the ... economically ideal case, we would build much more transmission."
That need is part of what led to California regulators passing the nation's first energy storage mandate, requiring utilities like PG&E, Southern California Edison and San Diego Gas & Electric to expand their capacity to store electricity, including solar and wind energy. Those three investor-owned utilities must collectively buy 1.3 gigawatts of energy storage capacity by the end of 2020. That amount is nearly enough to supply 1 million homes with energy.
"The decision lays out an energy storage procurement policy guided by three principles: Optimization of the grid, integration of renewable energy and reduction of greenhouse gas emissions," California Utilities Commissioner Carla Peterman told the San Jose Mercury News.
Meanwhile, Long Beach Mayor Bob Foster, who also sits on the board of grid overseer, the California Independent System Operator, was a little more blunt in describing the problem.
"We are getting to the point where we will have to pay people not to produce power," he told the Los Angeles Times.
Foster said he has been working with other regulators and utility executives to redesign the system, developing mapping and building ideas for networks of electrical lines, solar and plants and backup natural gas plants that can keep the lights on when the weather impacts the flow of renewable energy. They also want to avoid blackouts and better prepare themselves for the grid's unpredictable nature.
The U.S. Department of Energy, which oversees NREL, is using a supercomputer named Peregrine that "does a quadrillion calculations per second to help scientists figure out how to keep the lights on," the Los Angeles Times observed.
While the computing continues, activists, academics, regulators and industry types will continue their own search for answer. Arent said the results of a study he co-wrote with the 80-percent target in mind says the resources are available to reach such a goal. It's just the grid that needs plenty of careful analysis in the coming years.
"What we found was that there were many pathways, and there wasn't a red flag that said it was impossible, at least at the level that we looked at it," he said.
Visit EcoWatch’s RENEWABLES page for more related news on this topic.
EcoWatch Daily Newsletter
When Europeans first arrived in North America, Atlantic puffins were common on islands in the Gulf of Maine. But hunters killed many of the birds for food or for feathers to adorn ladies' hats. By the 1800s, the population in Maine had plummeted.
- Experts Recommend Halving Global Fishing for Crucial Prey Species ›
- US Court Upholds Ruling on Vast Marine Monument Established by ... ›
A "major" natural gas explosion killed two people and seriously injured at least seven in Baltimore, Maryland Monday morning.
- Fatal Natural Gas Explosion Rocks Durham, NC - EcoWatch ›
- Gas Explosion Rips Through Maryland Office & Shopping Complex ... ›
Nearly 900 people across the U.S. and Canada have been sickened by salmonella linked to onions distributed by Thomson International, the The New York Times reported.
- Meat Producers Issue Massive Recalls after Salmonella, Listeria ... ›
- Salmonella Outbreaks Could Worsen with Decreased Poultry ... ›
- Major Salmonella Outbreak Exacerbated by Government Shutdown ... ›
In the coming days, the U.S. Environmental Protection Agency (EPA) is expected to use its power to roll back yet another Obama-era environmental protection meant to curb air pollution and slow the climate crisis.
- Permian Basin Methane Emissions Found to Be More Than 2x ... ›
- Oil and Gas Operations Release 60 Percent More Methane than ... ›
- 'Extraordinarily Harmful' Trump Rule Would Gut Restrictions on ... ›
- Exxon Now Wants to Write the Rules for Regulating Methane ... ›
By Alex Kirby
The temperature of the Arctic matters to the entire world: it helps to keep the global climate fairly cool. Scientists now say that by 2035 there could be an end to Arctic sea ice.
Melt Ponds Crucial<p>"The prospect of loss of sea ice by 2035 should really be focusing all our minds on achieving a low-carbon world as soon as humanly feasible."</p><p><a href="http://www.reading.ac.uk/search/search-staff-details.aspx?id=10813" target="_blank">Dr. David Schroeder from the University of Reading</a>, UK, who co-led the implementation of the melt pond scheme in the climate model, says, "This shows just how important sea ice processes like melt ponds are in the Arctic, and why it is crucial that they are incorporated into climate models."</p><p>The extent of the areas <a href="https://nsidc.org/cryosphere/seaice/characteristics/formation.html" target="_blank">sea ice</a> covers varies between summer and winter. If more solar energy is absorbed at the surface, and temperatures rise further, a cycle of warming and melting occurs during summer months.</p><p>When the ice forms, the ocean water beneath becomes saltier and denser than the surrounding ocean. Saltier water sinks and moves along the ocean bottom towards the equator, while warm water from mid-depths to the surface travels from the equator towards the poles.</p><p>Scientists refer to this process as the ocean's global "conveyor-belt." Changes to the volume of sea ice can disrupt normal ocean circulation, with consequences for global climate. </p>
- Strongest, Oldest Arctic Sea Ice Breaks Up for First Time on Record ... ›
- Arctic Sea Ice Levels Hit Record Low After Unusually Warm January ... ›
- Why California Droughts Could Increase Due to Arctic Sea Ice Loss ... ›
Russia's Health Ministry has given regulatory approval for the world's first COVID-19 vaccine after less than two months of human testing, President Vladimir Putin said on Tuesday.
Putin's Daughter Among Vaccinated<p>The Russian leader also said that one of his daughters has already been inoculated and is feeling well.</p><p>"One of my daughters got vaccinated, so in this sense, she took part in the testing," Putin said.</p><p>After the first vaccine shot, his daughter experienced a slight fever, 38 degrees Celsius (100.4°F). Her temperature came down to just slightly above normal the next day. </p><p>"After the second shot, she had a slight fever again, and then everything was fine. She is feeling well and has a high antibody count," Putin said. </p><p>He didn't specify which of his two daughters, Maria or Katerina, received the vaccine.</p><p>Russian health authorities have said that medical workers, teachers and other risk groups will be the first to receive shots of the vaccine.</p>
Years of Work Reduced to Weeks<p>Russia is the first country to register a COVID-19 vaccine. As <a href="https://www.dw.com/en/germany-coronavirus-vaccine-may-only-be-available-in-mid-2021/a-54362065" target="_blank">countries worldwide race to produce the first vaccine</a>, health experts warn that speed and national pride could compromise safety.</p><p>Scientists in Russia and abroad have questioned Moscow's decision to register the vaccine before Phase 3 trials that normally last for months and involve thousands of people, but Putin emphasized that the vaccine underwent the necessary trials and that vaccination will be voluntary.</p><p>Russian officials have said that large-scale production of the vaccine will begin in September, and mass vaccination may start as early as October.</p><p>Philippine President Rodrigo Duterte, meanwhile, has <a href="https://www.dw.com/en/philippines-duterte-volunteers-to-be-putins-russian-coronavirus-vaccine-guinea-pig/a-54523030" target="_blank">lauded Russia's efforts in developing the vaccine</a> and said that the Philippines is ready to work with Moscow on vaccine trials, supply and production. Duterte volunteered to "be the first they can experiment on."</p><p>"I will tell President Putin that I have huge trust in your studies in combating COVID and I believe that the vaccine that you have produced is really good for humanity," Duterte said, adding that he thinks Russia's vaccine will be ready for the Philippines by December.</p>
- Pfizer Coronavirus Vaccine Enters Phase 2 and 3 Clinical Trials ... ›
- Trump Administration Buys up Nearly All the World's Supply of ... ›
- First Trial of Moderna's Coronavirus Vaccine Produces Immune ... ›
A powerful series of thunderstorms roared across the Midwest on Monday, downing trees, damaging structures and knocking out power to more than a million people.