Latency burns. A lot of it. Scientists say the electricity wasted by failed Bitcoin mining attempts now rivals Switzerland’s entire hydroelectric output. Just to be wrong.
It wasn’t supposed to be this messy. Or rather it wasn’t supposed to cost this much for nothing. A study dropped on May 26 in PNAS Nexus looks at the math behind Bitcoin’s distributed ledger. They built a model to see how the network really breathes. The numbers are ugly. Roughly 16,000 Megawatts were thrown away in 2025. Just tossed. This comes from miners slamming their computers at each other hoping to claim the same digital reward first. It matches the total capacity of 701 Swiss hydro plants.
Wait. That isn’t the total power bill. It’s just the garbage part.
The whole thing eats about 138 Terawatt-hours a year. That puts it ahead of Norway and the Netherlands combined.
Running out of steam
People talk about the carbon footprint. They used to talk about water. In 2023 the UN noted that Bitcoin mining guzzles enough cooling water for 300 million folks in sub-Saharan Africa. Liquid cooled servers are thirsty things.
How does it work? You know the drill. Proof-of-work. A digital puzzle that gets harder as more people show up. The first one to solve it gets a block of cash. Theoretically it’s elegant. In practice it’s a bloodsport.
Because the prize is huge specialized hardware costs a fortune. Data centers pop up like weeds. Speed matters. Not hours. Fractions of seconds.
Here is the problem. Two people can finish the puzzle at nearly the same time. Both shout “I did it.” Both post a block. One of those blocks dies. It becomes an orphan. All that electricity burned to solve a math problem no one cares about? Gone. Poof. Wasted heat.
“Accidental forks are an inefficiency… that leads to wasted computational resources and thus energy,” the researchers wrote.
They’re not wrong. It raises the cost. It hikes the environmental price tag for keeping the system “secure.”
Ethereum tried to fix this by switching to proof-of-stake. It doesn’t burn half as much juice. But Ethereum isn’t Bitcoin. Bitcoin’s market cap is over $1.1 Trillion. That is massive. It dwarfs Ethereum by 80%. Bitcoin is still king of the energy hogs. By far.
Who holds the leash
Old models treated miners like平等的 citizens in a flat land. This new study says no. Geography matters. Distance from the server matters. Latency matters.
They created a null model. A baseline. And they found something disturbing about the structure. Chinese miners faded out after their ban in 2022. But the void didn’t stay empty. Consolidation took over.
Who wins? Just three mining pools control more than 50% of all new blocks.
Why is that scary?
Think of a 51% attack. If a few groups hold too much power they can rewrite history. They can insert fake transactions. They can ensure their chain is the longest because they make it so. The rules get bent by those with the biggest hammers.
This concentration distorts fees. Miners can ignore you. Delay your transaction for fun or for profit. It feels arbitrary. It feels like the game is rigged. And yet everyone keeps playing.
The energy vanishes into thin air. The pools grow bigger. The next block is already waiting.
