+
Heroes

What happens to solar power when it isn't sunny? A simple question with an amazing answer.

"How does solar energy work when there's no sun?" has been a question for pretty much about as long as solar energy has been a thing.

Of course people wouldn't want solar panels on their houses if installing them meant that, come sunset, the movie they were watching suddenly shut off, forcing them to read by candlelight like colonial settlers. Making solar power a viable option, even when the sun sets or disappears behind some clouds, was one of the first things scientists and engineers had to figure out.

Photo by Andreas Rentz/Getty Images.


When the first devices that could capture the sun's energy were invented, they weren't very efficient.

Much like touch screens or video chatting or Dorito-flavored taco shells, solar power is one of those perfect ideas that took a while to get just right. Believe it or not, the earliest solar devices were introduced in the 1800s.

In 1878, Augustin Mouchot invented a device that could freeze water using the concentrated power of the sun. It was a cool experiment but not exactly reasonable or viable options for large-scale energy production.

No one wants this on the roof of their house. Photo via Wikimedia Commons.

Mouchot won a gold medal at the Universal Exhibition in Paris for his invention, but his device was gigantic, and coal was quickly becoming the go-to for efficient energy, so it didn't catch on.

The other downside to his invention? The solar-powered water-freezer only worked on (you guessed it) sunny days. But, that was 1878. Things have changed a lot since then.

Over the last century, the efficiency and feasibility of solar power has dramatically increased, and it's getting better every day.

Just look at this fun, easy-to-read chart!

OH GOD, MY EYES!Photo via National Renewable Energy Laboratory.

I know, I know, it's a lot to take in. Just know that it's showing you that since 1975, we've gotten better and better at efficiently converting the sun's rays into energy that can power our homes, businesses, and even a few cars and planes.

So how does solar energy keep providing power when the sun goes down?

The answer is pretty simple: storage.

Photo by Uriel Sinai/Getty Images.

Today's solar panels are designed to soak up more energy from the sun than we actually need and store it for later.

The way they do it is pretty amazing. Photons (aka light particles) hit the solar panel really hard — so hard that electrons (aka what electricity is made of) get knocked loose. Then the solar panel guides those loose electrons into a battery or superconductor that can store them. If an area has a reliable electricity grid, homeowners can just hook their solar panels right up to it. For them, nothing changes from their normal source of power except (usually) a smaller electricity bill.

A lot of people don't realize that going solar doesn't have to mean going "off grid," says Dan Whitson, solar manager for Green Audit USA in Long Island, N.Y.

"The grid is pretty reliable here, so battery options aren’t necessarily cost-effective on Long Island," Whitson explained over the phone. "But that’s something we have to explain to homeowners that, you know, you’re still going to be connected to the grid even though you’ve gone solar."

If there are solar panels on your roof, it's not like your PlayStation is plugged directly into them. The solar panels run into your regular power lines and help offset some of the energy cost, or they run into a box that will store the electricity, quite literally, for a rainy day.

Solar farms are power-plant-scale versions of this concept.

A solar power plant in China. Photo by STR/AFP/Getty Images.

They can be built in the middle of a desert where the sun is incredibly powerful and cloudy days are rare. The panels can even pivot automatically to follow the sun's path across the sky.

After the panels soak up as much energy as they can, the energy is transported to nearby cities. There's a solar farm in Austin, Texas, that produces enough power for 5,000 homes and offsets over 1 billion pounds of carbon dioxide emissions.

Oh and, yes, solar panels can still collect energy on cloudy days. They're just not as efficient about it.

That's because clouds don't block all the sunlight, just some of it. If you walk outside on a cloudy day and can still see, that's because there's still sunlight, even if it's a bit more muted than usual.

The sun is unstoppable. Photo via iStock.

That's where storage and the grid come in. Energy companies rely on the grid to offset any dips in production they might experience on a cloudy day.

"All of the reputable solar production calculators out there take in 20 to 30 years of weather data based on region," Whitson said. "So they can predict how much sun you’re going to get throughout the course of a year. Most projections are taking into consideration that it’s not going to be sunny every day."

Also, as previously mentioned, efficiency is one of the key things scientists are constantly trying to improve about solar panels.

"How does solar energy work when there's no sun?" is a simple question that cuts right to the core of a pretty huge idea.

It's the type of question that scientists, engineers, researchers, and experts around the world have to ask every single day in order to get better at what they're doing.

Photo by Ian Waldie/Getty Images.

It's the type of question that brought solar energy from an obscure experiment to a feasible source of electricity that powers millions of homes around the world.

Sponsored

ACUVUE launches a new campaign to inspire Gen Z to put down their phones and follow their vision

What will you create on your social media break? Share it at #MyVisionMySight.

True

If you’ve always lived in a world with social media, it can be tough to truly understand how it affects your life. One of the best ways to grasp its impact is to take a break to see what life is like without being tethered to your phone and distracted by a constant stream of notifications.

Knowing when to disconnect is becoming increasingly important as younger people are becoming aware of the adverse effects screen time can have on their eyes. According to Eyesafe Nielsen, adults are now spending 13-plus hours a day on their digital devices, a 35% increase from 2019.1. Many of us now spend more time staring at screens on a given day than we do sleeping which can impact our eye health.

Normally, you blink around 15 times per minute, however, focusing your eyes on computer screens or other digital displays have been shown to reduce your blink rate by up to 60%.2 Reduced blinking can destabilize your eyes’ tear film, causing dry, tired eyes and blurred vision.3

Keep ReadingShow less

Karlie Smith shows the meal she's bringing to the restaurant for her son.

A mom who admitted she packs her 2-year-old a meal when they go out to dinner has started an interesting debate on TikTok about restaurant etiquette and how it applies to young children.

The video posted by Ohio mom, Karlie Smith (unbreakablemomma on TikTok), has received nearly 600,000 views and has over 1,850 comments.

“Call me cheap, call me whatever, but if we’re going out to a restaurant, I’m packing my kid a meal," Smith, 21, said in her post. "I do this for many reasons. On Friday nights, my family and I get together, and tonight, we’re getting food out. My son is not getting food out.”

Keep ReadingShow less
Pop Culture

Man rewatches shows from his childhood and his recaps of the bonkers storylines are priceless

Rob Anderson's hilarious recaps of shows like "Mighty Ducks," "Beethoven," and "7th Heaven" might make you wonder how they got made in the first place.

@hearthrobert/TikTok

These plots makes zero sense.

While there are no doubt some timeless classics from our childhood that remain every bit as amazing as we remember, many are straight-up cringey upon a later viewing. Really, it’s to be expected as societal viewpoints change…sort of a marker of how far we’ve collectively come.

And so, what do we do with these problematic pieces of old-school pop culture? Well, we can certainly update them to better reflect a more modern attitude, but that also comes with a set of potential problems. Or we could simply never watch them again. Certainly an option given all the content out there. But then we might miss an opportunity to better understand what seemed to work for the mainstream then, and why it doesn’t work now.

And then there’s the third option—allow ourselves to be entertained by their cringiness.

That’s certainly the route taken by Rob Anderson. Over on TikTok, Anderson has taken ultra-popular movies and television shows from his childhood and given them hilarious recaps capturing how absurd some of the storylines are.
Keep ReadingShow less
Joy

18-year-old took her college savings and bought the restaurant where she was a dishwasher

Samantha Frye, the newest owner of Rosalie's restaurant, is proving there's more than one way to invest in your future.

Canva

There are many way to invest in your future

Eighteen year old Samantha Frye has traded college life for entrepreneurship, and she has no regrets.

Frye began working at Rosalie's Restaurant in Strasburg, Ohio at 16 as a dishwasher, working up the ranks as a kitchen prep, server, then line cook. All while working a second job, sometimes third job.

After graduating high school, Frye started college at Ohio State with plans of studying business or environmental engineering. But when she came back to work a shift at Rosalie’s for winter break, an opportunity arose—the owners had planned to sell the restaurant.
Keep ReadingShow less
Joy

Woman decides that she is the love of her life and marries herself at her retirement home

“I said, you know what, I’ve done everything else. Why not?”

77-year-old woman decides she's the love of her life and marries herself.

We joke about marrying ourselves or a platonic friend if some arbitrary amount of time has passed without a proposal from an imaginary suitor. And sure, some people do wind up marrying a friend in more of a business arrangement, but it's not very common that someone follows through with marrying themselves.

Dorothy "Dottie" Fideli, decided that she was going to break the mold. The 77-year-old sat down and thought about all of the things she had done in life and who was with her the entire time cheering her on. It was an easy answer: herself. She was her biggest cheerleader, the person who always showed up and the love of her life, so Fideli made the plan to marry herself.

On a beautiful May day, friends and family gathered in the O’Bannon Terrace Retirement Community, where Fideli is a resident, to witness the ceremony.

Keep ReadingShow less
Joy

12-year-old Texas girl saves her family from carbon monoxide poisoning

She knew something was wrong with her mom and brother, which wound up saving her whole family.

Fort Worth 12-year-old helps save family from carbon monoxide poisoning.

Carbon monoxide is called a silent killer for a reason. Many people don't realize they're experiencing carbon monoxide poisoning before it's too late. The gas is colorless and odorless and tends to have a sedating effect that causes people to sleep through the fatal poisoning. Having carbon monoxide detectors is one of the most effective ways to identify the gas before it's too late to get out of the house, but not every home has one.

A little girl in Fort Worth, Texas, experienced a terrifying encounter with the deadly gas, but her quick actions saved her entire family. Jaziyah Parker is being held up as a hero after she realized something was wrong with her family members and called for help.

The girl called 911 after she noticed her mom pass out. On the call with the dispatcher, Jaziyah says she thinks her mother has died before explaining that there was something now wrong with her baby brother, who was just 5-months-old.

Keep ReadingShow less

Drew Barrymore speaks during the FLOWER Beauty launch at Westfield Parramatta on April 13, 2019, in Sydney, Australia.

Drew Barrymore, 48, has been in the public consciousness since she starred as Gertie in 1982’s mega-blockbuster, “E.T.: The Extra-Terrestrial,” a performance that earned her an Oscar nomination for Best Supporting Actress. So, it makes sense that many people of a certain age feel as if they’ve grown up with her.

Barrymore has consistently starred in hit films and movies that are rewatchable cable-TV staples, such as “Charlie's Angels” (2000), “Never Been Kissed” (1999), “Scream” (1996), “The Wedding Singer” (1998), “50 First Dates” (2004) and “Fever Pitch” (2005).

Now, she’s an even more significant part of people’s lives as the host of “The Drew Barrymore Show,” which runs every weekday on CBS. So far, the show has been a big success, attracting an average of 1.21 million views per show, and ranks as the #4 talk show in syndication. It was recently renewed through the 2024 season.

Keep ReadingShow less