this post was submitted on 27 Jul 2025
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[–] qaz@lemmy.world 8 points 6 days ago* (last edited 6 days ago) (23 children)

The current systems used by VISA use significantly less energy compared to PoW cryptocurrencies such as Bitcoin

statista.com - Bitcoin average energy consumption per transaction compared to that of VISA as of January 19, 2025

Ethereum was able to cut their energy usage down drastically by moving away of PoW. Windmills and clean energy aren't the solution, getting rid of PoW is. Why build more solar farms if you could just not use so much electricity?

[–] O_i@lemmy.world -4 points 6 days ago (10 children)

I think I haven’t explained myself properly. I will admit it seems bitcoin uses more energy in this case. However, we’re comparing Bitcoins entire currency system with that of a processor of fiat. I’m on mobile right now but I would like to see that comparison for arguments sake, bitcoin ecosystem vs fiat ecosystem (including mining, storing and transport of gold)

[–] Auli@lemmy.ca 0 points 6 days ago (1 children)

So does the fiat system then get added to Bitcoin? Since it's only value is it can be exchanged for fiat currency.

[–] O_i@lemmy.world 1 points 5 days ago

BTC can be used like fiat so no?

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