Could Texas Avoid Blackouts With Renewable Energy?

“Around this time last year, millions of Texans were shivering without power during one of the coldest spells to hit the central United States,” remembers the Washington Post. “For five days, blackouts prevented people from heating their homes, cooking or even sleeping. More than 200 people died in what is considered the nation’s costliest winter storm on record, amounting to $24 billion in damages.

“Twelve months later, the state’s electrical grid, while improved, is still vulnerable to weather-induced power outages.”

“If we got another storm this year, like Uri in 2021, the grid would go down again,” said Andrew Dessler, a professor of atmospheric sciences at Texas A&M University. “This is still a huge risk for us.”

Now, a recent study shows that electricity blackouts can be avoided across the nation — perhaps even during intense weather events — by switching to 100 percent clean and renewable energy, such as solar, wind and water energy. “Technically and economically, we have 95 percent of the technologies we need to transition everything today,” said Mark Jacobson, lead author of the paper and professor of civil and environmental engineering at Stanford University. Wind, water and solar already account for about one fifth of the nation’s electricity, although a full transition in many areas is slow.

The study showed a switch to renewables would also lower energy requirements, reduce consumer costs, create millions of new jobs and improve people’s health….

The team found the actual energy demand decreased significantly by simply shifting to renewable resources, which are more efficient. For the entire United States, total end-use energy demand decreased by around 57 percent. Per capita household annual energy costs were around 63 percent less than a “business as usual” scenario…. In Texas, a complete green transition would reduce the annual average end-use power demand by 56 percent. It also reduces peak loads, or the highest amount of energy one draws from the grid at a time. Jacobson said many homes would also have their own storage and wouldn’t need to rely on the grid as much.
The team also found interconnecting electrical grids from different geographic regions can make the power system more reliable and reduce costs. Larger regions are more likely to have the wind blowing, the sun shining or hydroelectric power running somewhere else, which may be able to help fill any supply gaps. “The intermittency of renewable energy declines as you look at larger and larger areas,” said Dessler. “If it’s not windy in Texas, it could be windy in Iowa. In that case, they could be overproducing power and they could be shipping some of their extra power to us.” The study stated costs per unit energy in Texas are 27 percent lower when interconnected with the Midwest grid than when isolated, as it currently is.

Interestingly, long-duration batteries aren’t important for grid stability. the team found, since our current 4-hour batteries can just be connected for longer-term storage. Professor Dessler tells the Post we should think of “renewables” as a system which includes storage technology and easily-dispatchable energy solutions.

And the Post adds that a grid powered by renewables “would also produce cleaner air, which could reduce pollution-related deaths by 53,000 people per year and reduce pollution-related illnesses for millions of people in 2050.”

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After Blackouts, Texas Became a Top State for New Solar Installations as Thousands Install Microgrids

“Thousands of Texans who have turned to solar power and battery storage, creating so-called microgrids, as a solution to blackouts,” reports the Houston Chronicle.

“With a venture creating the same little power plants for apartment buildings, Texas has become a national leader in residential solar power installations.”

From 2019 to 2020, small-scale solar capacity in Texas grew by 63 percent, to 1,093 megawatts from 670 megawatts, according to the Energy Information Administration. In the first three quarters of 2021, another 250 megawatts of residential solar were installed in the state, according to the Solar Energy Industries Association. In last year’s third quarter alone, Texas ranked second behind California in the amount of power from new installations during the period, the industry’s Washington, D.C. trade group said.

Surging demand for residential solar power in Texas after the February 2021 freeze put pressure on installers to keep up, said Abigail Hopper, president and CEO of the association. The race to buy new rooftop panels has slowed some, she said, but Texas remains among the top three states for new installations. And the shrinking price of solar cells will help support its growing popularity, Hopper said.

“I think as more and more Americans really struggle with the impact of severe weather — everything from fires, the cold, hurricanes, droughts — and see the impacts on power and power outages, you’re going to continue to see folks looking for resiliency,” Hopper said.

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Slate’s 25th Anniversary Marked with Warning on Echo Chambers, Memories of ‘Motivated Reasoning’ on Microsoft

It’s the 25th anniversary of Slate.com, and writer William Saletan reflects on the last quarter century. “Print magazines that scorned internet journalism collapsed or faded (it’s hard to believe now, but in the ’90s, people thought your article wasn’t real if it wasn’t on paper), while new websites popped up to challenge us. In the struggle for survival, many outlets withered and died. But Slate adapted and grew…”

But he also shares what worries him now about the online world we’re living in:

I don’t see people learning from, or even recognizing, their mistakes. I see them caricaturing and gloating over the mistakes of others. In the old days, there was a lot of hope that the information age would make us smarter. It didn’t. Instead, high-speed communication, combined with algorithms that discern our biases and feed us what we want, helped us sort ourselves into echo chambers. On Twitter, Facebook, Slack, and other platforms, we’ve formed like-minded battalions that quickly spot the other side’s sins and falsehoods but are largely blind to our own.

I don’t mean to suggest that tribalism is new or that it’s always political. In the late ’90s, when Microsoft was on trial for antitrust violations, Slate’s top editors — all of whom drew Microsoft paychecks and had Microsoft stock options — were almost comically unanimous in their motivated reasoning. Their politics ranged from progressive to neoliberal to libertarian, but their behavior was essentially identical: They summoned all of their intellectual power, which was prodigious, and used it to poke holes in the antitrust case — in effect, to defend Microsoft.
Saletan argues that while the internet makes it easy to venture out from a “bubble” of viewpoints, too many idealists “insulated themselves from engagement with fundamentally opposing views….”

“So that’s what I’ve learned in my time here: seek out other perspectives, study your failures, and try to become wiser every day.”

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In 10 Years, Will ‘Remote Work’ Simply Be ‘Work’?

Bloomberg reports:
A decade from now, offices shall be used for one thing and one thing only: quality time with colleagues. This seemingly bold prediction comes from Prithwiraj Choudhury, a Harvard Business School professor and expert on remote work. âoeWe will probably in 10 years stop calling this âremote workâ(TM). Weâ(TM)ll just call it work,â he said….

His research showed that a hybrid workforce is more productive, more loyal and less likely to leave. With companies from Twitter Inc. to PwC now giving employees the option to work virtually forever, Choudhury said businesses that donâ(TM)t adapt risk higher attrition… “For employers, itâ(TM)s a win as well because you are not constrained to hiring from the local labor market â” where you have an office… This is a once-in-a-generation moment when people are not going to be forced to live where they donâ(TM)t want to. Some people will find a permanent place to live; some will move around. The digital nomad revolution is going on….”

“We should not care about how many days or hours anyone works. Every job and task should have objective metrics, which are output based, and if an employee can perform those metrics in two days, so be it. I am a firm believer that we should stop counting time. We should give people the flexibility to work when they want to, whichever hours they want to, whichever days they want to, and care only about their work.”

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The Sun Has Erupted Non-Stop All Month, and There Are More Giant Flares Coming

Over the past few weeks the sun “has undergone a series of giant eruptions that have sent plasma hurtling through space,” reports Science Alert:

Perhaps the most dramatic was a powerful coronal mass ejection and solar flare that erupted from the far side of the Sun on February 15 just before midnight. Based on the size, it’s possible that the eruption was in the most powerful category of which our Sun is capable: an X-class flare.

Because the flare and CME were directed away from Earth, we’re unlikely to see any of the effects associated with a geomagnetic storm, which occurs when material from the eruption slams into Earth’s atmosphere. These include interruptions to communications, power grid fluctuations, and auroras. But the escalating activity suggests that we may anticipate such storms in the imminent future. “This is only the second farside active region of this size since September 2017,” astronomer Junwei Zhao of Stanford University’s helioseismology group told SpaceWeather. “If this region remains huge as it rotates to the Earth-facing side of the Sun, it could give us some exciting flares.”

According to SpaceWeatherLive, which tracks solar activity, the Sun has erupted every day for the month of February, with some days featuring multiple flares. That includes three of the second-most powerful flare category, M-class flares: an M1.4 on February 12; an M1 on February 14; and an M1.3 on February 15. There were also five M-class flares in January. The mild geomagnetic storm that knocked 40 newly launched Starlink satellites from low-Earth orbit followed an M-class flare that took place on January 29.

The article suggests this is normal activity, since the sun is about halfway towards “solar maximum” (its peak of sunspot and flare activity) expected to arrive in 2025, while the “solar minimum” was in 2019.
Further Reading: SciTechDaily reports that the ESA/NASA Solar Orbiter spacecraft has now “captured the largest solar prominence eruption ever observed in a single image together with the full solar disc.”

Thanks to long-time Slashdot reader schwit1 for submitting the story

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Google to Overhaul Ad-Tracking on Android Phones Used by Billions

The Washington Post reports:

Google announced it will begin the process of getting rid of long-standing ad trackers on its Android operating system, upending how advertising and data-collection work on phones and tablets used by more than 2.5 billion people around the world.

Right now, Google assigns special IDs to each Android device, allowing advertisers to build profiles of what people do on their phones and serve them highly targeted ads. Google will begin testing alternatives to those IDs this year and eventually remove them completely, the company said in a Wednesday blog post. Google said the changes will improve privacy for Android users, limiting the massive amounts of data that app developers collect from people using the platform.

But the move also could give Google even more power over digital advertising, and is likely to deepen concerns regulators have already expressed about the company’s competitive practices… It made $61 billion in advertising revenue in the fourth quarter of 2021 alone….

The announcement comes over a year after Apple began blocking trackers on its own operating system, which runs on its iPhones, giving customers more tools to limit the data they share with app developers…. Google contrasted its plan with Apple’s, saying it would make the changes over the next two years, working closely with app developers and the advertising industry to craft new ways of targeting ads and measuring their effectiveness before making any drastic changes.
“We realize that other platforms have taken a different approach to ads privacy, bluntly restricting existing technologies used by developers and advertisers,” said Anthony Chavez, vice president of product management for Android security and privacy, in the blog post. “We believe that without first providing a privacy-preserving alternative path such approaches can be ineffective and lead to worse outcomes for user privacy and developer businesses.”
The Post also includes this quote from the chief security office of Mozilla (which began restricting ad tracking in Firefox several years ago). “Google’s two year plan is too long. People deserve better privacy now.”

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Meta’s Social VR Platform Horizon Hits 300,000 Users

Since being rolled out to users in the U.S. and Canada, Meta’s social VR platform for the Quest headset, Horizon Worlds, has grown its monthly user base by a factor of 10x to 300,000 people. “Meta spokesperson Joe Osborne confirmed the stat and said it included users of Horizon Worlds and Horizon Venues, a separate app for attending live events in VR that uses the same avatars and basic mechanics,” reports The Verge. “The number doesn’t include Horizon Workrooms, a VR conferencing experience that relies on an invite system.” From the report: Before its December rollout, Horizon Worlds was in a private beta for creators to test its world-building tools. Similarly to how the gaming platform Roblox or Microsoft’s Minecraft works, Horizon Worlds lets people build custom environments to hang out and play games in as legless avatars. Meta announced this week that 10,000 separate worlds have been built in Horizon Worlds to date, and its private Facebook group for creators now numbers over 20,000 members.

Meta still hasn’t disclosed how many Quest headsets it has sold to date, which makes it hard to gauge Horizon’s success relative to the underlying hardware platform it runs on. But several third-party estimates peg sales at over 10 million for the Quest. Zuckerberg recently said that Meta would release a version of Horizon for mobile phones later this year to “bring early metaverse experiences to more surfaces beyond VR.”

“So while the deepest and most immersive experiences are going to be in virtual reality, you’re also going to be able to access the worlds from your Facebook or Instagram apps as well, and probably more over time,” the CEO said on Meta’s last earnings call. Bringing Horizon to mobile would position it as even more of a competitor to Rec Room, a well-funded, social gaming app with 37 million monthly users across gaming consoles, mobile phones, and VR.

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Scientists Demonstrate Self-Awareness In Fish

Researchers from the Graduate School of Science, Osaka City University, have provided evidence to suggest that fish have the capacity for MSR, a behavioral test to determine whether an animal possesses the ability of visual self-recognition. As Phys.Org explains, an animal’s capacity for MSR is determined when they “touch or scrape a mark placed on their body in a location that can only be indirectly viewed in a mirror.” From the report: Professor [Masanori Kohda] says, “Previously, using a brown marking on the throat area of [cleaner fish Labroides dimidiatus], we had shown three out of four cleaner fish to scrape their throats several times after swimming in front of a mirror, a number on par with similar studies done on other animals like elephants, dolphins, and magpies.” However, one of the criticisms laid against this result was sample size and the need for repeated studies showing positive results. Teaming up with researchers from the Max Planck Institute of Animal Behavior in Germany and the University of Neuchatel in Switzerland, this study increased the sample size to 18 cleaner fish, with a 94% positive result of 17 of them demonstrating the same behavior from the previous study.
[…]
Prof. Kohda says, “Our previous study demonstrated MSR in L. dimidiatus; however, studies with other animals have shown that simply moving a mirror reignites aggressive behavior, suggesting the animal has only learned a spatial contingency, not MSR.” To address this, the team transferred mirror-trained cleaner fish to a tank with a mirror on one side of the tank and then three days later to a tank with a mirror on the other side, and saw the fish show no aggression toward their mirror image in both tanks. Also, to ensure the L. dimidiatus that passed the mark test truly are recognizing themselves, they placed mirror-trained fish in adjacent tanks that were separated by transparent glass. After two to three days, when fish largely reduced their aggressive behavior towards each other, they were marked the standard way the following night. None of the fish scraped their throat during the 120 mins of exposure to each other the following morning. This new experiment was recently published in PLOS Biology.

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