@cleoabram: This is a battery made of sand. It’s a whopping 13 meters tall, 15 meters across, and has 2,000 tonnes of sand in it. It was just installed in a city in Finland to be its primary heat production plant. Here's how it works... The sand is not nearly as efficient compared to the lithium-ion batteries you’re using in your phone. But it's cheap, abundant, and sustainable. And could be a great way to deliver constant energy as we rely more on renewable energy sources. For more optimistic science and tech stories, follow along! #sand #energy #heat #science

Cleo Abram
Cleo Abram
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Region: MX
Friday 18 July 2025 21:15:45 GMT
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iamthatictr
ICTER :
sand battery efficiency
2025-07-19 12:21:38
11
malusi231
Ngobese321 :
Why do people say we must find ways of renewable energy as if we don’t have nuclear power?
2025-07-19 05:23:18
358
ngkahweng
wengweng🇲🇾 :
sand might look abundant but do you know in many countries the harvesting of sand had gone to uncontrolled level for construction electronics and now heat retainer. most of the riverbed had become bare and the destruction of marine ecosystem
2025-07-23 07:15:48
0
stevemfnhall
Steve Hall :
Also, non-flammable.
2025-07-19 05:33:56
145
g55661
gg :
the efficiency is questionable, why desert is cold at night then?
2025-07-21 13:33:24
1
markcallanan8
Callanan Photo of Ireland 🇮🇪 :
where'd they get the sand
2025-07-24 07:23:51
0
mikepikegige
Mika :
It only holds and delivers heat. Not electriciry, you cant get lights on with heat as vid lets you misunderstand. It’s still great if you can make heat to store from free surplus wind electricity and use the heat when needed here in cold areas. But it’s not the same as battery storing electricity. Electricity is way more sophisticated, needed, versatile and valuable and expensive than heat. I hope we can do something more valuable from electricity than heat, hydrogen or synthetic fuels for example.
2025-07-21 09:29:11
3
b_tunni
Mr. Tinyhand :
That’s actually so sick
2025-07-18 21:18:53
505
philb325
Phil :
Recycled glass sand?
2025-07-23 15:34:29
0
lazy_lazarus_
Lazer :
Whoever thought of this is brilliant
2025-07-18 22:33:02
146
blopblop490
MarcusD :
The City is Pornainen. And there are now other similar batteries in Finland.
2025-07-21 04:59:54
0
user6523987661290765
user29823764006 :
Beach theft is an environmental crime
2025-07-19 17:38:52
4
tik_with_a_tok
Tikky Tok :
How does the heat turn into power?
2025-07-18 22:04:03
7
hgbaladas5
Kpop101 :
Why not just water
2025-07-20 07:57:25
0
kindle8946
kindle :
25 percent efficiency, lost at least 75 percent energy 😂😂😂
2025-07-20 01:02:30
7
polly.urethane0
polly.urethane :
Metric units 🤯
2025-07-19 21:10:16
3
angelmlopezsimon
Angel M. Lopez Simon :
I use a buried sand "accumulator" (or battery) with 30 cubic meters of sand to store heat (that I use to heat my water and my house around the year).
2025-07-19 21:07:41
38
ao4077
AO4077 :
Can we use recycled bottles made into sand? We can’t afford to lose more coastal sand.
2025-07-20 16:10:19
1
daniel_9123
Daniel :
I've heard about the plan back then, I hope it'll work fine
2025-07-20 19:09:33
0
welcome2themother
Welcome2theMothership :
Emirates have a lot of Sand if u want we can send you and you send us Ice
2025-07-19 20:32:58
2
shanteriz
San Thery :
Is it sand used in concrete or unusable sand from Sahara?
2025-07-20 11:28:58
3
david.14.28
David.3.6.9 :
This is not a new invention. The Egyptians invented this 5000 years ago and on a much greater scale.
2025-07-19 22:23:12
1
peaceafricanhopeorg
peaceafricanhopeorg :
I want to learn more about this
2025-07-21 15:35:40
0
friends.who.lift
Friends Who Lift :
Anakin won’t like this
2025-07-21 14:30:57
0
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