Energy Can Be Stored in Tall Brick Towers
Storing large amounts of energy is key to using more renewable energy because the wind does not always blow and the sun does not always shine.
One new method of energy storage uses gravity. The Energy Vault is a giant tower with a crane at its center and thousands of massive stackable bricks, each weighing more than a fully loaded school bus.
"We utilize excess solar energy when it's produced and not needed – or excess wind," says CEO Robert Piconi. "And that drives these motors on the crane that allow us to lift and stack these composite bricks."
Piconi says when energy is needed, the process is reversed. The bricks are lowered to the ground on cables. As they fall, they release kinetic energy, which is converted to electricity. Then when excess energy is available again, the tower is rebuilt.
Piconi says an Energy Vault can be installed almost anywhere. The bricks are made on-site from soil that's excavated when the system is built, or even from local waste materials like used concrete.
"We wanted something scalable. We didn't want environmental impacts," he says.
This year, systems are being built in India and Switzerland. Piconi says that as the technology spreads, it can help elevate the use of clean energy.
Reposted with permission from Yale Climate Connections.
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By Brett Wilkins
The U.S. Department of Agriculture (USDA) and the meatpacking industry worked together to downplay and disregard risks to worker health during the Covid-19 pandemic, as shown in documents published Monday by Public Citizen and American Oversight.
<div id="13077" class="rm-shortcode" data-rm-shortcode-id="11b9fe5ff48ebc437353df6df9c2c892"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1305915938148147205" data-partner="rebelmouse"><div style="margin:1em 0">Just a week before the Trump administration issued an executive order aimed at keeping meat packing plants open, th… https://t.co/DkbXgPm4YR</div> — ProPublica (@ProPublica)<a href="https://twitter.com/propublica/statuses/1305915938148147205">1600189597.0</a></blockquote></div>
<div id="36e4c" class="rm-shortcode" data-rm-shortcode-id="e7c8048c2755109629a3b3072fcb3261"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1304424041814593539" data-partner="rebelmouse"><div style="margin:1em 0">Meatpacking union @UFCW, which reps workers at this plant (four of whom died), slams OSHA for the small $13k fine a… https://t.co/tnhfKd89ab</div> — Dave Jamieson (@Dave Jamieson)<a href="https://twitter.com/jamieson/statuses/1304424041814593539">1599833901.0</a></blockquote></div><p>The United Food and Commercial Workers (UFCW) International Union, which represents Smithfield Foods workers, <a href="https://www.argusleader.com/story/news/crime/2020/09/10/osha-fines-smithfield-foods-sioux-falls-south-dakota/5768786002/?eType=EmailBlastContent&eId=f7bf3f03-ce98-4df4-9c45-f44d9a6a5890" target="_blank">slammed</a> the fine as "insulting and a slap on the wrist."</p><p>"How much is the health, safety, and life of an essential worker worth? Based on the actions of the Trump administration, clearly not much," said UFCW president Marc Perrone.</p><p>"This so-called 'fine' is a slap on the wrist for Smithfield, and a slap in the face of the thousands of American meatpacking workers who have been putting their lives on the line to help feed America since the beginning of this pandemic," Perrone added. </p><p>Other critics, including vegans, vegetarians, and animal rights and environmental advocates argued that the accelerated spread of Covid-19 from meatpacking facilities is but the latest compelling argument in favor of reducing—or eliminating—meat consumption.</p><p>"We know that Covid-19 originated in a meat market and that previous influenza viruses originated in pigs and chickens," People for the Ethical Treatment of Animals (PETA) <a href="https://www.peta.org/blog/meat-shortage-slaugherhouses-go-vegan/" target="_blank">said</a> in April amid news that a Foster Farms slaughterhouse in Livingston, California was <a href="https://www.peta.org/blog/coronavirus-covid-19-slaughterhouse-meat-concerns/?utm_source=PETA::Twitter&utm_medium=Social&utm_campaign=0420::veg::PETA::Twitter::Workers%20Blame%20Major%20Pig%20Slaughterhouse%20600%20Infected%20COVID-19::::tweet" target="_blank" rel="noopener noreferrer">ordered closed</a> by local health authorities due to a Covid-19 outbreak that killed eight employees.</p>
<div id="28490" class="rm-shortcode" data-rm-shortcode-id="48ddd3480a2beb42597d9516ef652f0f"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1252416495990140929" data-partner="rebelmouse"><div style="margin:1em 0">THIS IS OUTRAGEOUS! @SmithfieldFoods allegedly took NO PRECAUTIONS to protect the safety of its workers, leaving o… https://t.co/viAJ026pLy</div> — PETA (@PETA)<a href="https://twitter.com/peta/statuses/1252416495990140929">1587434336.0</a></blockquote></div><p>"It's not a matter of <em>whether</em> using and killing animals for food will give rise to another disease outbreak—it's a matter of <em>when</em>," said PETA. "There has never been a better, more obvious time for businesses to put an end to their dirty trade of slaughtering animals for their flesh." </p>
By Andrea Willige
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