this post was submitted on 10 Feb 2024
132 points (82.4% liked)
Technology
59466 readers
3684 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Since it's a common mistake when discussing cryptocurrency energy use, I should point out that it's really only Bitcoin specifically that uses significant amounts of electricity these days. Most other cryptocurrencies have switched to proof of stake systems, which uses negligible energy.
Also over half is used by green energy already and will continue to grow
There is a caveat to this. It’s been a few years since I read the article, but oftentimes the reason Bitcoin miners run on renewables is because they set up shop in places that have established local cheap electricity.
The example in the article was a town with ideal geography for hydro power, to the point electricity was cheap enough to sell it to the next town over. Crypto-miners set up in the first town and quickly began using more power, driving up the cost and eventually causing serious issues for the second town as there wasn’t enough electricity leftover to send their way anymore.
I'm no fan of Bitcoin, but often the energy they use from hydro plants is energy that would literally be wasted otherwise. A hydro dam can't control how much water is entering the reservoir, so if there's more water entering the reservoir than is needed to generate electricity for the current demand then the dam will need to just throw the extra water away. Trying to transmit the electricty to remote markets can be an alternative, but that costs resources too and isn't always practical.
I dug up the original article: https://www.politico.com/magazine/story/2018/03/09/bitcoin-mining-energy-prices-smalltown-feature-217230/
In this case, they already were exporting 80% of the hydro-energy generated, about enough to power Los Angeles in 2018 when it was written. Maybe there are some cases for your suggestion on a small scale, but if a site is generating enough excess electricity to make mining worthwhile, why would it be less worthwhile to connect it to a larger grid?
The hydro plant for my city doesn't even have a reservoir. It's just on a river that flows down a mountain. And 99.999% of the water doesn't go through any turbines.
Having said that - it doesn't produce enough power for the city, let alone spare to be wasted on other things.