adplus-dvertising
Connect with us

Science

Tips to Conserve Your Energy and Help Prevent Outages During Extreme Weather Events

Published

 on

Heat waves and winter storms combined with power outages are a dangerous recipe that can have tragic results.

Extreme weather-induced power outages mean sweltering under relentless heat or freezing temperatures with no power to operate an air conditioner or heater.

Texas, for example, has its own non-profit operated grid called ERCOT, so when much of the state saw its hottest July on record in 2022, officials there issued what’s called a conservation appeal asking the public to reduce energy consumption during periods of extreme heat. This came on the heels of a power crisis in 2021 in the same state when a brutal winter storm crippled wind turbines and natural gas infrastructure that weren’t adequately winterized. Gas-fueled power plants in Texas went down as a result, leaving millions cold and in the dark.

Outages caused by winter storms and summer heat waves can leave residents powerless, but they’re fundamentally different problems with essentially opposite solutions. Winter outages typically stem from a large or sudden drop in the supply of energy to the grid. A natural gas power plant goes offline, turbines stop turning or a snow-loaded tree falls onto a power line, cutting off service.


Can solar panels save you money?

Interested in understanding the impact solar can have on your home? Enter some basic information below, and we’ll instantly provide a free estimate of your energy savings.


Blackouts during a heat wave, on the other hand, are usually triggered by an excess in demand for electricity. They’re typically caused by thousands of households all turning on their air conditioners at the same time to escape the heat. This is why utilities and other officials will often appeal to customers to conserve energy when the mercury rises.

Such energy conservation appeals help prevent blackouts, said Yami Newell, associate director for community projects at Elevate, a Chicago-based non-profit that works on energy issues. But it can also lead to some hard choices for people who are left to figure out how to reduce their own energy consumption.

Newell emphasized that reducing your energy consumption doesn’t have to mean just sweating and suffering through it.

The sun sets behind highrise buildings in downtown Los Angeles, California The sun sets behind highrise buildings in downtown Los Angeles, California

Downtown Los Angeles, California on September 30, 2020. Heat waves add demand to the power grid. The added stress can cause blackout or brownouts.

 

Frederic J. Brown/Getty

Winter weather:

  • Invest in a back-up source of power like a generator or battery system. There are a wide array of backup power solutions on the market, from whole home gas-powered generators costing tens of thousands of dollars, to inexpensive portable batteries you can charge off a wall socket beforehand to provide several hours of power for essential devices when the power goes out. More on these options in the next section.
  • Consider an electricity-free source of heat like a wood stove. There are also a limited amount of gas or propane heaters that can be operated safely indoors. If you opt for such a source of heat, ensure that you follow all instructions for operating such a heater safely to avoid starting a fire or carbon monoxide poisoning.
  • Stock up on supplies. If you don’t have a back-up source of power, or even if you do, it’s a good idea to keep a sufficient amount of food, blankets, water, warm clothing (dress in layers), batteries and light sources (careful with candles) on hand.
  • Weatherize your house before the storm hits. If your home is of a certain age, there’s a good chance it’s leaking warmth somewhere. Sealing those leaks and adding insulation will keep you warmer a little bit longer when your heat goes out. These improvements also qualify for a federal tax credit.

How to protect yourself from power outages

One way to never worry about power outages is to set up your own energy generation and storage system. This can be done in the form of solar panels and battery storage, which comes with the added benefit of being able to sell the extra power you generate to your local utility in exchange for credits on your monthly bill.

Some electric vehicles offer a bidirectional charging where your EVs battery can act as a backup power source.

Other homeowners go for the arguably simpler approach of installing a back-up generator that can kick on to run your house when the grid goes down. You can also buy back-up batteries that you can charge via the grid or however you like to use in an emergency, rather than a generator that can be loud and uses fossil fuels. This is typically the least expensive option, but needs to be charged in advance of the emergency and only lasts for a few hours or days at most, depending on usage.

Con Edison field operators in New York City check on feeder cables at the corner of First Ave. and E. 15th St. as they try to prevent a blackout due to increased consumption during the heat wave. Con Edison field operators in New York City check on feeder cables at the corner of First Ave. and E. 15th St. as they try to prevent a blackout due to increased consumption during the heat wave.

According to the New York Daily News, increased energy consumption during a heat wave in New York this past August caused feeder cables to need repair. These Con Edison field operators are trying to prevent a blackout as they work towards fixing them. 

New York Daily News Archive/Getty

How reducing your energy use can help the grid

The stability of an electrical grid, and really any electrical system, depends on being able to maintain a steady supply of energy to meet the demand of devices that are pulling from or consuming the energy.

This is why things can go haywire in your home if you plug too many things into a single circuit that isn’t designed to handle that much demand. Circuit breakers in your home are actually set to shut off the flow of power in the circuit when this happens to prevent damage to your devices or electrical system.

Something similar can happen to the larger electrical grid when heat waves hit and thousands of energy-hungry air conditioners are all turned on at once. If demand begins to approach a state of exceeding the available supply of electricity on the grid, the utility must initiate rolling blackouts to prevent damage to the system. If preventive measures aren’t implemented in time and the system overloads and causes an unplanned blackout, the lights may stay off for even longer until damaged components can be repaired or replaced.

Running several electric heaters in a large room on a cold winter day might trip a breaker in your home in the same way that a heat wave-induced power demand might trigger a broader blackout.

Employing passive cooling techniques, like simply drawing light-colored curtains during sunny hours can reduce temperatures in your home and your energy usage as well. Even taking simple measures that reduce ambient temperatures by just a few degrees translates to less energy usage.

All of these tips and actions may look like small measures that have no effect on your energy grid, but if enough people take steps towards energy conservation during extreme weather events, it could help make a bigger impact.

 

728x90x4

Source link

Continue Reading

News

Here’s how Helene and other storms dumped a whopping 40 trillion gallons of rain on the South

Published

 on

 

More than 40 trillion gallons of rain drenched the Southeast United States in the last week from Hurricane Helene and a run-of-the-mill rainstorm that sloshed in ahead of it — an unheard of amount of water that has stunned experts.

That’s enough to fill the Dallas Cowboys’ stadium 51,000 times, or Lake Tahoe just once. If it was concentrated just on the state of North Carolina that much water would be 3.5 feet deep (more than 1 meter). It’s enough to fill more than 60 million Olympic-size swimming pools.

“That’s an astronomical amount of precipitation,” said Ed Clark, head of the National Oceanic and Atmospheric Administration’s National Water Center in Tuscaloosa, Alabama. “I have not seen something in my 25 years of working at the weather service that is this geographically large of an extent and the sheer volume of water that fell from the sky.”

The flood damage from the rain is apocalyptic, meteorologists said. More than 100 people are dead, according to officials.

Private meteorologist Ryan Maue, a former NOAA chief scientist, calculated the amount of rain, using precipitation measurements made in 2.5-mile-by-2.5 mile grids as measured by satellites and ground observations. He came up with 40 trillion gallons through Sunday for the eastern United States, with 20 trillion gallons of that hitting just Georgia, Tennessee, the Carolinas and Florida from Hurricane Helene.

Clark did the calculations independently and said the 40 trillion gallon figure (151 trillion liters) is about right and, if anything, conservative. Maue said maybe 1 to 2 trillion more gallons of rain had fallen, much if it in Virginia, since his calculations.

Clark, who spends much of his work on issues of shrinking western water supplies, said to put the amount of rain in perspective, it’s more than twice the combined amount of water stored by two key Colorado River basin reservoirs: Lake Powell and Lake Mead.

Several meteorologists said this was a combination of two, maybe three storm systems. Before Helene struck, rain had fallen heavily for days because a low pressure system had “cut off” from the jet stream — which moves weather systems along west to east — and stalled over the Southeast. That funneled plenty of warm water from the Gulf of Mexico. And a storm that fell just short of named status parked along North Carolina’s Atlantic coast, dumping as much as 20 inches of rain, said North Carolina state climatologist Kathie Dello.

Then add Helene, one of the largest storms in the last couple decades and one that held plenty of rain because it was young and moved fast before it hit the Appalachians, said University of Albany hurricane expert Kristen Corbosiero.

“It was not just a perfect storm, but it was a combination of multiple storms that that led to the enormous amount of rain,” Maue said. “That collected at high elevation, we’re talking 3,000 to 6000 feet. And when you drop trillions of gallons on a mountain, that has to go down.”

The fact that these storms hit the mountains made everything worse, and not just because of runoff. The interaction between the mountains and the storm systems wrings more moisture out of the air, Clark, Maue and Corbosiero said.

North Carolina weather officials said their top measurement total was 31.33 inches in the tiny town of Busick. Mount Mitchell also got more than 2 feet of rainfall.

Before 2017’s Hurricane Harvey, “I said to our colleagues, you know, I never thought in my career that we would measure rainfall in feet,” Clark said. “And after Harvey, Florence, the more isolated events in eastern Kentucky, portions of South Dakota. We’re seeing events year in and year out where we are measuring rainfall in feet.”

Storms are getting wetter as the climate change s, said Corbosiero and Dello. A basic law of physics says the air holds nearly 4% more moisture for every degree Fahrenheit warmer (7% for every degree Celsius) and the world has warmed more than 2 degrees (1.2 degrees Celsius) since pre-industrial times.

Corbosiero said meteorologists are vigorously debating how much of Helene is due to worsening climate change and how much is random.

For Dello, the “fingerprints of climate change” were clear.

“We’ve seen tropical storm impacts in western North Carolina. But these storms are wetter and these storms are warmer. And there would have been a time when a tropical storm would have been heading toward North Carolina and would have caused some rain and some damage, but not apocalyptic destruction. ”

___

Follow AP’s climate coverage at https://apnews.com/hub/climate

___

Follow Seth Borenstein on Twitter at @borenbears

___

Associated Press climate and environmental coverage receives support from several private foundations. See more about AP’s climate initiative here. The AP is solely responsible for all content.

Source link

Continue Reading

Science

‘Big Sam’: Paleontologists unearth giant skull of Pachyrhinosaurus in Alberta

Published

 on

 

It’s a dinosaur that roamed Alberta’s badlands more than 70 million years ago, sporting a big, bumpy, bony head the size of a baby elephant.

On Wednesday, paleontologists near Grande Prairie pulled its 272-kilogram skull from the ground.

They call it “Big Sam.”

The adult Pachyrhinosaurus is the second plant-eating dinosaur to be unearthed from a dense bonebed belonging to a herd that died together on the edge of a valley that now sits 450 kilometres northwest of Edmonton.

It didn’t die alone.

“We have hundreds of juvenile bones in the bonebed, so we know that there are many babies and some adults among all of the big adults,” Emily Bamforth, a paleontologist with the nearby Philip J. Currie Dinosaur Museum, said in an interview on the way to the dig site.

She described the horned Pachyrhinosaurus as “the smaller, older cousin of the triceratops.”

“This species of dinosaur is endemic to the Grand Prairie area, so it’s found here and nowhere else in the world. They are … kind of about the size of an Indian elephant and a rhino,” she added.

The head alone, she said, is about the size of a baby elephant.

The discovery was a long time coming.

The bonebed was first discovered by a high school teacher out for a walk about 50 years ago. It took the teacher a decade to get anyone from southern Alberta to come to take a look.

“At the time, sort of in the ’70s and ’80s, paleontology in northern Alberta was virtually unknown,” said Bamforth.

When paleontogists eventually got to the site, Bamforth said, they learned “it’s actually one of the densest dinosaur bonebeds in North America.”

“It contains about 100 to 300 bones per square metre,” she said.

Paleontologists have been at the site sporadically ever since, combing through bones belonging to turtles, dinosaurs and lizards. Sixteen years ago, they discovered a large skull of an approximately 30-year-old Pachyrhinosaurus, which is now at the museum.

About a year ago, they found the second adult: Big Sam.

Bamforth said both dinosaurs are believed to have been the elders in the herd.

“Their distinguishing feature is that, instead of having a horn on their nose like a triceratops, they had this big, bony bump called a boss. And they have big, bony bumps over their eyes as well,” she said.

“It makes them look a little strange. It’s the one dinosaur that if you find it, it’s the only possible thing it can be.”

The genders of the two adults are unknown.

Bamforth said the extraction was difficult because Big Sam was intertwined in a cluster of about 300 other bones.

The skull was found upside down, “as if the animal was lying on its back,” but was well preserved, she said.

She said the excavation process involved putting plaster on the skull and wooden planks around if for stability. From there, it was lifted out — very carefully — with a crane, and was to be shipped on a trolley to the museum for study.

“I have extracted skulls in the past. This is probably the biggest one I’ve ever done though,” said Bamforth.

“It’s pretty exciting.”

This report by The Canadian Press was first published Sept. 25, 2024.

The Canadian Press. All rights reserved.

Source link

Continue Reading

News

The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

Published

 on

 

TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

The Canadian Press. All rights reserved.

Source link

Continue Reading

Trending