Maximilian Obwexer, an ingenious business owner based in Austria, came across a substantial difficulty relating to the heating of his home. Historically reliant on standard heating oil, which showed pricey, Obwexer, a previous engineer with experience in hydropower plants, looked for a more effective heating service.
After substantial experimentation and expedition of Bitcoin mining, he developed 21energy 3 years earlier. His business concentrates on producing sound, visually pleasing, and significantly peaceful Bitcoin miners created for property usage. The preliminary design, the Ofen 1, might attain hashes of up to 10 TH/s, while the premium variation can reaching 40 TH/s, albeit with higher sound levels. Following an effective scaling of production, that included the hiring of 12 brand-new staff members in the previous year and the launch of the Ofen 2 (offering 35-42 TH/s), these Bitcoin heating systems are created in the design of standard radiators and are powered by Bitcoin, enabling users the versatility to either mine solo or team up with favored mining swimming pools.
During a discussion at the inaugural Nordic Bitcoin conference, BTCHel, in Helsinki, Obwexer identified Bitcoin heating systems as a kind of decentralized grid balancing at the property level. Rather than promoting his items, he focused thoroughly on the obstacles dealing with the European energy grid.
Europe’s dependence on energy imports raises issues, as existing electrical energy service providers—such as coal, gas, and hydropower—face increasing needs to minimize their output in favor of the growing frequency of wind turbines and photovoltaic panels. While the shift to renewable resource sources is good, it presents the issue of vibrant and unmanageable electrical energy generation interfacing with the grid. During durations of peak supply, renewable resource service providers are regularly asked for to reduce production due to a seemingly saturated grid.
This situation not just leads to a waste of possible electrical energy however also makes complex financial investment computations for renewable resource stakeholders. Moreover, European homes face inflated electrical energy expenses, even more intensifying the monetary problems connected with heating.
In light of these elements, Obwexer argues that the existing landscape is ripe for Bitcoin mining. He asserts, “It’s a no-brainer—even for those who may not fully comprehend or appreciate Bitcoin.” Observing the dynamic activity at his cubicle in Helsinki, he kept in mind the widening interest in his innovation.
A considerable section of Obwexer’s clients includes ecologically mindful people, typically referred to as “solar guys,” who are actively looking for methods to minimize their nonrenewable fuel source dependence. Surprisingly, this market discovers the economics of Bitcoin mining engaging, as Obwexer has actually suggested.
In a current podcast including co-organizers Knut Svanholm and Luke de Wolf, he highlighted Finland’s pioneering function in Bitcoin heating and district heating:
“Europe needs Bitcoin mining urgently, given the high volatility in electricity grids… we need not fear politicians because… they have already outlined its potential—they simply fail to recognize Bitcoin mining as part of that framework.”
At the conference, he provided a critical chart that highlights the necessary function of energy in promoting a flourishing and healthy society: “To achieve a clean, rich, and healthy society, substantial amounts of power are indispensable.”

Looking ahead, Obwexer and the 21energy group goal to boost versatile load shedding on a grid-wide scale. They are establishing mobile miners that can be transferred in trucks, which lowers production pressure on centers such as hydro plants. This method makes it possible for instant responsiveness to grid needs, enabling excess electrical energy created by hydroelectric systems to be rerouted towards Bitcoin mining—substantially enhancing response times from minutes to simple seconds.
Meet 21energy next week at #BTCHEL – the First Large-Scale Bitcoin Conference in the Nordics!
Join us at our cubicle and satisfy our group
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Don’t miss out on talks from Harald, Maximilian & Lukas on Bitcoin mining,… pic.twitter.com/juBRMGWvWh
— 21energy (@21energy_com) August 7, 2025
Utilizing purpose-built or repurposed Bitcoin miners for property heating represents a clear technique for decentralizing mining operations, especially considered that home miners are less susceptible to the competitive economics that afflict big mining farms.
By dealing with diverse energy obstacles at the same time, Obwexer and the 21energy group are embodying the concept of “From Tyrol to the World.”
In conclusion, Obwexer revealed a favorable outlook, mentioning, “I am highly optimistic about the future of Bitcoin mining in Europe.”
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Join us at our cubicle and satisfy our group
Learn how we change electrical energy into heat & Bitcoin
Don’t miss out on talks from Harald, Maximilian & Lukas on Bitcoin mining,…