21.scot designs and operates computer systems that turn surplus renewable power into productive, revenue-generating digital value.
We engineer computing and heating management systems that sit behind the meter. They absorb surplus generation, providing a flexible load whilst converting electrical energy into useful digital work.
Our focus is to provide site resilience without introducing operational risk.
The Challenge
The UK Grid is in Flux
Grid Fragility
Export limits and curtailment
Lengthening connection timelines
Centralised failure modes
Underutilised Generation
Stranded electrical capacity
Excess energy during off-peak periods.
Poor alignment with demand.
Data Dependency
Reliance on centralised cloud infrastructure
Limited local autonomy
Exposure to outages
For asset owners, this results in lost revenue and operational constraints.
The Opportunity
Unlocking Latent Value
Transforming Surplus Electricity
Convert curtailed generation into valuable digital assets, leveraging previously wasted energy.
Recovering Excess Heat
Utilise waste heat to create stable, predictable income streams and improve energy efficiency.
How Do We Do It?
Bitcoin mining is a highly controllable electrical load. It can be adjusted in milliseconds, making it ideal for absorbing surplus generation or responding to grid events.
It does not require fast internet. A basic connection is sufficient. This makes it well-suited to remote locations where generation assets are often sited.
The technology has advanced significantly in the last 2 years. Modern mining equipment is reliable, virtually silent, and water-cooled. We use this equipment exclusively.
Many negative perceptions of Bitcoin mining are based on outdated narratives from the industry's early years, or on misunderstandings about how the technology works today.
We do not attempt to fully explain Bitcoin mining here. If you are interested in understanding why it works well in Scotland, particularly alongside renewable generation, we welcome a direct conversation.
Systems designed for long-term reliability. Enhanced site resilience without compromising generation.
Location-independent digital work from constrained or curtailed energy.
Our Story
21.Scot was formed by five people who approached Scotland's energy problem from different angles but arrived at the same conclusion.
The UK energy system is becoming more complex, more constrained, and more political at exactly the moment it needs to become more practical, resilient, and decentralised.
Between us, we have decades of experience working with: farmers, hydro schemes, industrial power users, renewable energy, mechanical systems, and capital projects that have to work in the real world, not just on paper.
We did not come together to chase a trend. We came together because we saw a growing gap between how energy is generated, how it is constrained, and how it is valued—and because there is an opportunity to close that gap in ways that align with Scotland’s energy, resilience, and decarbonisation goals, while delivering tangible benefit at a local level.
Bitcoin mining sits at that intersection, not as a speculative play but as a flexible, interruptible tool that can absorb excess energy, stabilise projects, and improve asset economics without changing the character of the underlying system or undermining local priorities.
21.Scot is a startup, yet it is built on decades of practical experience in delivering innovation and engineering projects. We are now seeking our first projects and collaborators, particularly energy producers and asset owners looking to develop early projects in the 50 kW to 1 MW range.
People who think long-term.
People who value optionality.
People who understand that good infrastructure is built quietly, carefully, and with respect for the land, the grid, and the communities connected to it.
If you recognise yourself in that way of thinking, we should talk.
Our Approach
Core Capabilities
01
Behind-the-Metre Energy Utilisation
Controllable electrical loads that operate on surplus generation. Spin up and shut down instantly during grid events. No interference with primary export.
02
Resilient Compute Infrastructure
Locally operated systems that function without continuous cloud connectivity. Tolerate intermittent power. Physically co-located with generation assets.
Engineering-Led Team
Decades of hands-on experience in power systems and resilient infrastructure. Not theoretical IT solutions.
Mark Kiehlmann BSc
Software developer. 30 years building robust, production-grade systems for reliability.
Simon Grey CEng
Business leader with engineering background.
40 years leading development and delivery of challenging projects.
Robin Smith CEng
Design engineer. 25 years delivering practical innovation across system-level design.
Pavel Grachev
Bitcoin Mining Operations. Experienced Bitcoin mining facility builder and operator. Built and managed mining operations up to 5MW across 200+ clients in Europe.
Rowan Howe MA
Economics and mathematics specialist, Adam Smith Business School. Experience in wholesale electricity trading.
For Bitcoiners
Bitcoin mining is critical infrastructure. It secures the network, validates transactions, and anchors value. It also consumes significant energy — and that's the point. Mining converts electrical work into a globally verifiable, decentralised ledger.
In the UK, renewable generators often face export constraints and curtailment. That surplus power is wasted. We turn it into productive mining work. Your hash rate becomes a flexible load that absorbs otherwise-lost generation, improves grid stability, and recovers heat for productive use. No speculation. No short-term narratives. Just efficient use of physical resources.
We're building UK-based, resilient mining infrastructure. If you're serious about long-term Bitcoin security and decentralisation, let's talk about how your site—whether hydro, AD, or wind—can contribute.
Benefits
Why This Matters
For AD Plant Owners
Monetise excess electrical capacity
Improve site-level energy autonomy
Add revenue streams aligned with plant uptime
For Hydro Operators
Turn export constraints into value
Improve utilisation rates
Strengthen viability of marginal schemes
Our Mission
Building Resilience for the 21st Century
We build data and power resilience for the 21st century.
Long-Term Thinking
Scottish, pragmatic approach. Systems designed for decades, not quarters.
Trust Through Engineering
Credible solutions backed by real-world experience. No hype, no jargon.
Edge Resilience
Strengthening autonomy at the grid edge. Local control, global capability.
Next Steps
We engage early through feasibility discussions and site-specific power profiling.
1
Initial Assessment
Load and generation characterisation. Export and curtailment review.
2
Integration Planning
Physical and electrical integration assessment. Constraint analysis.
3
Implementation
Deployment of resilient systems. Ongoing support and optimisation.
Start a Conversation
Ready to unlock the value in your constrained or surplus energy? Let's discuss how 21.scot can strengthen your site's resilience.