Maximilian Obwexer had an issue.
He was heating his residence in Austria with typical heating oil, and it was costly. A tinkerer by nature, and a former engineer having labored on hydropower vegetation, he was looking for a greater technique to warmth his residence.
After many rounds of experimentation and having delved down the Bitcoin (mining) rabbit gap, three years in the past he based an organization dedicated to the hassle. His firm, 21energy, makes well-balanced, sturdy, and extremely stunning (and extremely quiet!) miners for residence use. The early fashions of Ofen 1 boasted as much as 10 TH/s, whereas the premium mannequin might attain, at high pace and making loads of noise, 40 TH/s. Having scaled up manufacturing, hiring 12 new staff solely this 12 months and launching the brand new Ofen 2 (35-42 TH/s), the Bitcoin heater comes within the type of a traditional radiator — powered by Bitcoin. And sure, you possibly can solo mine with this bitcoin heater… or be part of whichever pool you suppose is greatest.
“Bitcoin heaters are decentralized grid balancing — at residence!” he proclaimed on stage in Helsinki on Friday earlier than tons of of curious faces within the viewers on the inaugural Nordic Bitcoin convention BTCHel. Refreshingly, he spent most of his presentation not promoting his glorious merchandise or explaining his story in bitcoin, however on the various troubles afflicting the European grid.
Europeans are beholden to foreigners for importing power. Its present electrical energy producers — legacy coal, gasoline and hydro — are more and more requested to show off their provide to the grid, in favor of the ever-more current wind generators and photo voltaic panels. Fossil-fuel-based era produces CO2 emissions in addition to particles within the quick setting, however its proposed replacements push dynamic and uncontrollable electrical energy era onto the grid. At peak provide, even renewable power suppliers are requested by grid administration to curtail or wind down manufacturing; there’s merely no person to take the surplus electrical energy, nowhere to place it
That is clearly unhealthy in that it wastes potential electrical energy that might have been used, however even worse is that it makes the funding calculations for renewable power traders worse. Not unrelated, households in Europe pay exorbitant charges for his or her electrical energy… and on high of that, heating on the whole is kind of costly.
If you put all of these points collectively, it’s just like the outdated world is screaming out for Bitcoin mining. Obwexer agrees, “It’s a no brainer — even if you happen to don’t like or perceive Bitcoin,” he tells me, standing subsequent to his shiny inexperienced sales space and radiators retaining the Expo corridor in Helsinki actual toasty.
Certainly, a big portion of his shopper base are “photo voltaic guys” — devoted local weather change activists eager to do one thing hands-on to de-fossilize their very own power use. Whereas it’s not precisely the primary group you consider being excited about Bitcoin, “The economics simply make sense,” Obwexer tells me.
In a current podcast interview with Knut Svanholm and Luke de Wolf, two of the co-organizers of BTCHel, Obwexer remarked that “Finland is basically on the forefront of bitcoin heating and bitcoin district heating”:
“Europe wants Bitcoin mining so badly, with the excessive volatility within the electrical energy grids… we don’t should worry the politicians an excessive amount of, as a result of… they already wrote it down — they simply don’t see that they wrote Bitcoin mining all over the place.”
On stage in Helsinki, he confirmed some of the vital graphs in your complete economics and power debate, which underlines exactly how essential power is for the well-being and flourishing of a society. “If you need a clear, wealthy, wholesome society you want numerous energy.”
through: Todd Moss, Eat Extra Electrons
Up subsequent for Obwexer and his workforce at 21energy is contributing to versatile load shedding on a grid degree. Placing cell miners in a truck and take manufacturing strain off, e.g., hydro vegetation, is an ideal use case for Bitcoin mining: As a substitute of being requested to ramp down manufacturing due to an overloaded grid, they’ll divert the electrical energy stemming from their water circulation to Bitcoin miners — which additionally modifications their response time from minutes to seconds.
Meet 21energy subsequent week at #BTCHEL – the First Giant-Scale Bitcoin Convention within the Nordics!
Be part of us at our sales space and meet our workforce
Learn the way we rework electrical energy into heat & Bitcoin
Don’t miss talks from Harald, Maximilian & Lukas on Bitcoin mining,… pic.twitter.com/juBRMGWvWh
— 21energy (@21energy_com) August 7, 2025
Typically, utilizing purpose-built or rebuilt Bitcoin miners for heating your house is the obvious technique to decentralize mining — particularly since residence miners are a lot much less inclined to the cutthroat economics of Bitcoin mining that, e.g., giant mining farms are.
Whereas fixing a number of real-world power issues without delay, Obwexer and his workforce at 21energy are doing exactly that — “From Tyrol to the World.”
“I’m tremendous bullish on Bitcoin mining in Europe,” Obwexer concluded.
This submit Bitcoin Heating Up: Residence Bitcoin Mining is Going To Warmth Europe first appeared on Bitcoin Journal and is written by Joakim E-book.
