Compass - Personal Call

Grid full, getting nothing back?

Harvest unused solar power and earn.

Replacing your heating system?

Heat your space and earn Bitcoin too.

Wondering if mining makes sense?

Find out if mining pays off for you.

Check if it fits first ↓
€250 credited on an order from €2.000
Excellent 4.9 out of 5
Book & schedule your call instantly
12-month backtest on your data
60-month forecast

Many reasons. One call.

No wrong reason to book. Here's who we talk to most.

Surplus power, untapped

You make more power than you can sell or use. Let's turn that into earnings instead of waste.

Harvest the sun

Lots of panels, too much power in summer. Let's put it to work instead of losing it.

New heating system

Old oil or gas system has to go. Why not replace it with something that earns?

Business & industry

You have your own power setup. You want real numbers, not a sales pitch.

Farms & rural sites

Biogas, barn roofs full of panels, your own grid connection. Big potential, not used yet.

Explore your idea

Bring your rough idea — even the crazy ones. We'll refine it with you and you still get a full report.

One hour. Real answers.

We look at your full situation and give you a detailed report and analysis — made for your specific case.

PDFreport

with individual roadmap

60min

with an expert

€250

Credit on an order from €2.000

Bring your data — or just your assumptions. We work with what you have and build from there.

We look at your energy setup — how much you make, how much you use, what's left over

Honest answer: does Bitcoin mining make sense for you or not

We talk hardware — one unit or ten, whatever fits your case

You get a full report after the call — and if you buy hardware, the fee comes back as store credit

Our experts. Years of experience.

We look at your full situation and give you a detailed report and analysis — made for your specific case.

Lukas Waldner

Lukas Waldner

Co-Founder · 21energy

Has personally evaluated over 100 setups. From rooftop solar in Bavaria to biogas plants in Austria. He knows which questions matter and how to create clarity in 60 minutes.

Dr. Harald Rauter

Dr. Harald Rauter

Chief Growth Officer

International expert at the intersection of energy, Bitcoin, and decarbonisation. Brings strategic perspective and deep industry knowledge to every consultation.

Johannes Marseiler

Johannes Marseiler

Customer Success

Expert in Bitcoin mining and technical setups. He knows every product in detail and finds the right solution for any starting point.

"Most people don't realize how much money they lose every month on unused energy. They see it on the bill but don't connect the dots. One hour and I can show them exactly what that wasted power is worth — and whether they can turn it into income."
— Lukas Waldner, Co-Founder

Does this fit you?

Mining is great — but it comes with certain requirements. We don't want to waste your time or your money, so here are a few quick questions before we move ahead.

Do you have a space you could use for this?

A garage, basement, utility room, or barn. Somewhere separate from your living space.

Can it be noisy in that space?

Miners are about as loud as a vacuum cleaner (~75 dB). Like an Antminer S19.

Is the space dry and not humid?

It should stay dry year-round. No damp walls, no condensation.

Is it clean and not too dusty?

Dust clogs miners and damages them. A normal garage is fine. A woodworking shop is not.

Is there stable WiFi or 4G at the location?

Miners need to stay online 24/7. Home WiFi or a 4G router works.

You're a great fit. Everything checks out.

Book the call and we'll figure out the right setup for you. You get a full report after.

Looks promising — but we need to clarify something first.

Not the right fit — for now

Unfortunately, mining comes with certain requirements — we don't want to sell you something that won't work for you. But we're building more for the future: different products, simpler setups, new options.

Subscribe to our newsletter and we'll keep you posted.

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How it works

Five steps. That's it.

1
Buy the product

One click, fixed price. Just like buying anything else in our shop. No account needed.

2
Check your email

You get a confirmation right away with everything you need for the next step.

3
Pick a time

Your email has a booking link. Pick a time that works for you. We confirm right away.

4
The call

Bring your data, your questions, everything. 60 minutes to get clear answers about your case.

5
Your report

After the call, you get a full report. What works, what doesn't, and what to do next — all based on your numbers.

FAQ

Common questions

What if it turns out mining doesn't fit my case?
We'll tell you straight. You'll know exactly why and what would need to change. That's worth more than months of guessing.
Should I send anything before the call?
It helps a lot if you do. Energy bills, site plans, grid info — anything you have. Send it over after you book and we'll prepare everything upfront. That way we make the most of your hour.
Can I discuss multiple setups or situations?
Bring as many challenges or cases as you want. We only charge for the work it takes — not more. If it needs more time, we'll tell you.
What do I actually get from this?
One hour with someone who knows the hardware, the grid, and the numbers. Plus a full report after the call, made for your situation.
What happens after I get the report?
You have a clear roadmap. If mining makes sense, we help you pick the right hardware. And the consultation fee comes back as store credit when you buy equipment.

One hour with an expert. Clear answers.

No risk. No pitch. Just an honest look at your situation — and a full report you can act on.

Full report included · Booking link in your email · Buy hardware? Fee back as store credit