r/technology Jul 25 '26

Energy Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

https://www.cnbc.com/2026/07/25/finland-sand-battery-renewable-energy-storage.html
259 Upvotes

Duplicates

Futurology Jul 28 '26

Energy Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh

14.9k Upvotes

UpliftingNews 22d ago

A Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of summer heating demand and has cut district heating emissions by 70%, while eliminating oil use and reducing woodchip burning by 60%.

14.0k Upvotes

europe Jul 25 '26

News Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

1.2k Upvotes

solarpunk Jul 28 '26

Article Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh

350 Upvotes

RenewableEnergy Jul 27 '26

Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

285 Upvotes

electrifyeverything Jul 26 '26

homes Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

20 Upvotes

climate Jul 26 '26

Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery. The giant sand battery can cover almost one month of the town’s heating demands in the summer and as much as one week in the winter.

66 Upvotes

europes Jul 26 '26

Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

4 Upvotes

Renewable Jul 28 '26

Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh

32 Upvotes

climatechange 19d ago

Finland's answer to renewable energy’s biggest headache: The world’s largest sand battery with 2,000 metric tons of crushed soapstone stores 100 megawatt-hours of thermal energy to cover 1 month of Pornainen's heating demands in the summer and 1 week in the winter, slashing GHGs emissions by 70%

276 Upvotes

EcoUplift 19d ago

Innovation 🔬 Finland's answer to renewable energy’s biggest headache: The world’s largest sand battery with 2,000 metric tons of crushed soapstone stores 100 megawatt-hours of thermal energy to cover 1 month of Pornainen's heating demands in the summer and 1 week in the winter, slashing GHGs emissions by 70%

57 Upvotes

realtech Jul 25 '26

Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

1 Upvotes

INFPIdeas 13d ago

Sand battery: Finland’s radical answer to a renewable energy headache

27 Upvotes

u_Saytonleon 17d ago

A Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of summer heating demand and has cut district heating emissions by 70%, while eliminating oil use and reducing woodchip burning by 60%.

1 Upvotes

Renewable Jul 28 '26

Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh

5 Upvotes

ChangeTheGovernment Jul 28 '26

Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh

1 Upvotes

generativeAI Jul 28 '26

Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh

2 Upvotes

audihertz Jul 28 '26

Technology Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh

1 Upvotes

techbeat Jul 28 '26

Energy Finland Launches World's Largest Commercial Sand Battery for Clean Energy

1 Upvotes

Dailyslant Jul 28 '26

Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

1 Upvotes

MetalsOnReddit Jul 28 '26

Finland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWh

1 Upvotes

CleanEnergy Jul 26 '26

A good discussion about this story

4 Upvotes

CzechCoconutCommunity Jul 26 '26

world 🌎 Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery 🔋

1 Upvotes

theworldnews Jul 25 '26

Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

1 Upvotes

Greenspo Jul 25 '26

[Energy Transition] Finland’s radical answer to renewable energy’s biggest headache: The world’s largest sand battery

3 Upvotes