https://jwz.org/b/ykdm
Ironic, but honestly probably the best way to mine bitcoins. Those greenhouses apparently need to be heated for some reason, and that used to be powered by dirty energy. Powering it by solar panels is a lot better. But instead of simply throwing it through a heater, why not run a bunch of processors and let them do something useful? Or let them mine Bitcoin. They could be folding proteins or analyzing radio telescope signals instead, but the principle is sound.
Selling it back to the grid is apparently not an option, according to omroepbrabant.nl/nieuws/459627…
The linked article at jwz.org/blog/2024/11/bitcoin-t… seems to think carbon negative means turning CO2 into diamonds, but it's pretty obvious this setup is turning CO2 into tulips. Whether those are useful is another big question. If you believe in tulips and bitcoin, this is probably the best way to go about it. If you don't, it's an expensive waste of time and resources, but still carbon neutral. There are worse things in the world.
In het magazijn van ondernemer Frank uit Heeswijk-Dinther staan niet alleen spullen om deurklinken te leveren, maar ook een grote computer die Bitcoin-transacties verwerkt. Met deze computer houdt Frank zijn magazijn warm, waardoor hij minder gas hoeft te gebruiken. "Nu de koers van Bitcoin aan het stijgen is, is dit een fantastische ontwikkeling."
I'm no greenhouse expert, but I know they used to use a ton of fossil energy. I doubt they'd do that if it wasn't necessary, but if you have sources that say otherwise, I'll take your word for it.