Seeing is Believing: Investor Site Visit
GM Data Centers AG (greenmining.io) operates GM3, a Swiss-regulated Bitcoin mining facility running on 100% hydropower at an energy cost of $0.028–0.057/kWh. With about half of GM3 already operational and 300+ investors on board, the facility turns institutional-grade infrastructure into audited, verifiable operations.
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By Valentine Pleser, Co-Founder & CGO, Berlin, Germany
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There is nothing like seeing progress firsthand, and that is exactly what one of our investors experienced during a recent visit to GM3. From rapid build-out to tangible operational milestones, the results were clear and unambiguous.
What the Site Visit Confirmed
At GM3, we are not simply discussing the future of Bitcoin mining. We are building it, one verified milestone at a time. Transparency, efficiency, and sustainability are not aspirational values here. They are operational realities, visible the moment you walk the floor.
Three things stood out to the visiting investor.
1. Modern, Purpose-Built Infrastructure
> "GM3 is purpose-built for institutional-grade Bitcoin mining, with hardware specifications and facility design that meet high operational standards."
The infrastructure at GM3 is not retrofitted or improvised. Every component, from the cooling systems to the power distribution architecture, is designed for long-term, high-density compute workloads. This is the physical foundation that supports the operational figures we report.
2. Rapid Scaling and Optimisation
> "GM3 delivered a +17.5% EBIT margin in 2025, its first operational year, a figure that reflects the discipline of the team managing the facility on a day-to-day basis."
Scaling is not simply a question of adding machines. It requires precise management of Bitcoin network hashrate dynamics, energy procurement, and hardware efficiency ratios. Our team tracks all three in real time.
The current Bitcoin block reward of 3.125 BTC per block, following the April 2024 halving, means that mining economics reward the lowest-cost, highest-uptime operators. GM3 is positioned at that end of the cost curve.
3. About Half of GM3 is Running
> "About half of GM3 is currently operational, representing a concrete, auditable milestone rather than a projected figure."
This is not a forecast. GM3 has 3 MW currently in operation, with up to 6 MW planned. That operational capacity was visible during the site visit and is verifiable in our investor reporting. The remaining capacity is being brought online in structured phases, consistent with the build schedule disclosed to investors at entry.
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Sustainability: 100% Hydropower at Scale
> "GM3 operates on 100% hydropower, sourcing electricity at $0.028–0.057/kWh, placing it among the most cost-competitive and environmentally responsible mining operations of its kind."
Hydropower is not a marketing claim at GM3. It is a contractual energy sourcing commitment. The International Energy Agency classifies hydropower as the world's largest source of renewable electricity, and its stable, dispatchable nature makes it well suited to continuous compute workloads unlike solar or wind.
> "At $0.028–0.057/kWh, GM3's energy cost is structurally below the global average mining cost, a durable cost advantage even during periods of Bitcoin price compression."
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Swiss Regulation and Structure
> "GM3 operates within the Swiss financial and corporate framework, with FINMA providing the supervisory context that international readers associate with legal certainty."
Switzerland's FINMA regulatory environment is one of the reasons GM3 draws interest from readers across the DACH region and beyond. The legal structure, reporting obligations, and governance are not optional. They are embedded in how the company is incorporated and operated.
More than 300 investors already hold shares in the group.
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What Visiting Investors Take Away
The site visit format exists for a reason. Photographs and reports convey data. A physical visit conveys operational discipline, team competence, and the condition of the hardware. These are the qualitative factors that data alone cannot fully capture.
When a visitor walks a facility that produced 14.5 BTC in 2025, at the energy cost and uptime figures we publish, the impression that follows is grounded in direct evidence, not projection.
> "A site visit to GM3 converts reported figures into observable, verifiable operational reality."
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Frequently Asked Questions
Q: What can visitors see at GM3? A: Visitors see live mining hardware, the power distribution and cooling architecture, and the operational milestones the team reports. GM3 has 3 MW currently in operation, with up to 6 MW planned, so a visit shows both what is running today and how the phased build-out is progressing.
Q: Is GM3 genuinely powered by 100% renewable energy? A: Yes. GM3 sources all of its electricity from hydropower, at a contracted rate of $0.028–0.057/kWh. This is a contractual commitment, not a carbon offset arrangement, and it is one of the key structural cost advantages of the facility.
Q: How is GM3 structured, and what framework does it sit under? A: GM3 operates within the Swiss corporate and financial framework overseen in part by FINMA. Swiss regulation provides a well-established legal structure, transparent reporting requirements, and the institutional credibility that comes with one of the world's most respected financial jurisdictions.
Q: What does "about half of GM3 is running" mean? A: It means that a material, auditable portion of the facility is live and generating mining revenue today. GM3 has 3 MW currently in operation, with up to 6 MW planned, and the remaining capacity is being commissioned in planned phases.
Q: Can I visit the GM3 facility? A: Yes. Site visits are available as part of getting to know the operation. Greenmining.io encourages direct verification of operational claims, consistent with our commitment to full transparency.
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Past performance is not an indicator of future results.