BTC / USD$78,013
DIFFICULTY125.81 T
NETWORK901 EH/s
REWARD3.125 BTC
OUR POWERfrom $0.072/kWh
S23 HYDRO580 TH/s · 9.5 J/TH
UPTIME SLA97.0%
GRID100% HYDRO
BTC / USD$78,013
DIFFICULTY125.81 T
NETWORK901 EH/s
REWARD3.125 BTC
OUR POWERfrom $0.072/kWh
S23 HYDRO580 TH/s · 9.5 J/TH
UPTIME SLA97.0%
GRID100% HYDRO
Hydro-cooled Bitcoin mining · Paraguay

Your miners run cold.
Your power comes from a river.

Bitmain HK3 hydro containers in Paraguay, running for four years. Electricity from $0.072/kWh, sourced from hydroelectric dams — and a calculator that shows your real numbers, not marketing ones.

Calculate your return →Talk to us on WhatsApp

97% uptime guarantee · Legal import, customs-cleared · 24/7 on-site security

Dive in
Depth 00 · The river

It starts with water nobody burns.

Paraguay generates almost all of its electricity from hydroelectric dams. No coal, no gas, no diesel generators. Some of the cheapest clean power on the continent — and the reason we are here and not in Texas.

Depth 01 · The loop

The same water then cools your machine.

Inside the HK3 container, distilled coolant runs directly across the hash boards. No fans screaming at 75 decibels, no dust, no hot aisle. We manage the distilled water, the pumps and the whole loop — that is our job, not yours.

Depth 02 · The board

Cold silicon lasts longer.

Liquid pulls heat off the chip far faster than air can. Lower junction temperatures mean fewer failed boards, less throttling, and a machine still hashing at full rate in year three.

9.5 J/TH
Depth 03 · The output

And it all comes back as hashrate.

Your pool, in your name, handed over to you to manage. We never touch your payouts. You watch the machines through Foreman, we keep them alive.

580 TH/s / S23 Hydro
4Years operatingFour years on the Paraguayan market — since before the last halving.
97%Uptime guaranteeWritten into the contract you sign.
100%Renewable powerHydroelectric grid. Zero carbon from electricity.
3 weeksChina to ParaguayTwo weeks shipping, one week customs. Then we rack it.
01 Profitability

Run the numbers on our electricity price.

Most mining calculators use a generic power cost. This one uses the tier you would actually pay with us, and it drops automatically as you add machines. Live network data, your machine, your quoted price.

Hashrate 580 TH/sPower 5,510 WEfficiency 9.5 J/TH
1255075100
Your rate: $0.076 / kWh · from 10
Prices move daily with the Chinese market. Put in your number — ours or anyone's — and the maths below is instantly real.
Last known $78,013

Your numbers

Last known price
PeriodBTCRevenuePowerNet
24 hours0.002898$226.10-$100.50$125.59
7 days0.020287$1,582.68-$703.52$879.16
30 days0.086946$6,782.89-$3,015.07$3,767.82
Payback on hardware45.5 mo1,385 days on $174,000 of hardware
Breakeven BTC price$34,678Below this, power costs more than you mine

Same machine, different power price

With Acuario$125.59/d
At $0.12/kWh$67.41/d

Over a year that is $21,238 more in your pocket, and hardware paid back 39.3 months sooner — from the power price alone.

What if Bitcoin moves?

Payback at the same hardware cost and the same power tier
−50%$39,00710 yr+payback
Today$78,01345.5 mopayback
+100%$156,02616.3 mopayback
+200%$234,0399.9 mopayback
+300%$312,0527.1 mopayback

Nothing changes here except the Bitcoin price. Same machines, same hardware cost, same power tier. A doubling takes your payback to 16.3 months — which is why the number you see today tells you less than you think.

Estimates only. Network difficulty and coin prices change constantly, and so does the price of hardware in China — we verify the real machine price before every purchase. Pool fees and your own tax position are not included.

Get today's real price →

Cheaper power exists. It usually costs you more.

There are grids on this planet selling electricity for half our price. What they rarely publish is how many hours a year your machine is actually allowed to run. Here is the same S23 Hydro in both places, at today's Bitcoin price.

Per machine, per dayAcuario · ParaguayCheap grid elsewhere
Electricity price$0.072 / kWh$0.040 / kWh
Uptime you actually get97%60%
Mining revenue$21.93$13.57
Electricity cost-$9.24-$3.17
Net, per machine, per day$12.70$10.39

That grid is 44% cheaper per kilowatt-hour and still finishes 22% behind, because a machine that is switched off earns nothing while your capital sits idle. Compare uptime, not tariffs. Figures use today's Bitcoin price and one S23 Hydro at block reward 3.125 BTC.

02 Timing

The best time to buy usually looks like the worst time to buy.

Read this before you judge the number above. It is the part of the business almost nobody in mining hosting will say out loud, and it is the reason we put the calculator first instead of hiding it.

Bitcoin has moved in roughly four-year cycles for its entire existence, anchored to the halving that cuts the block reward in half. That has a direct and uncomfortable consequence for anyone buying mining hardware.

When the price is high, the calculator prints a beautiful payback, hardware is expensive, everybody wants machines and the queue is long. When the price is low, the same calculator prints four years or worse, hardware is cheap, and the phone stops ringing.

History has generally been unkind to the first group and generous to the second. Your payback is not a property of the machine. It is a function of a price that has repeatedly doubled and halved. A payback that looks bad today gets rewritten by a single upcycle. A payback that looks perfect today usually means you paid a premium at the top — for hardware and for the queue.

99.3%Three-year holdsShare of historical entry points where holding Bitcoin three years ended in profit.
100%Five-year holdsNo five-year holding period in Bitcoin's record has ended at a loss.
~4 yrCycle lengthSet by the halving, which is written into the protocol — not by sentiment.
2028Next halvingBlock 1,050,000. The reward drops from 3.125 to 1.5625 BTC.
And the honest half: this is a pattern, not a promise. Past cycles do not guarantee future ones and we will not pretend otherwise. It is exactly why we show you the breakeven price before you sign, why the contract runs a year, and why the electricity tier matters more than any forecast — cheap power is the only variable in this equation you actually control.
03 Electricity

The more you run, the less you pay.

One price, per kilowatt-hour, in US dollars. It drops as your fleet grows — no negotiation needed to reach the published tier. Pay six months up front and we apply a further rebate.

Hosting contract runs for a minimum of one year · Minimum order: one machine · One month of electricity paid in advance · Six-monthly prepayment earns a rebate · Deposit of $350 per air-cooled machine and $500 per hydro machine — at the end of the contract it is used up as electricity, so you do not lose that money

04 Location

Why Paraguay, and not wherever power is cheapest.

This is not a frontier bet. Paraguay is now the fourth-largest Bitcoin mining country on earth, and it got there on surplus hydroelectric power that would otherwise be sold across the border for less.

#4Country by hashrateFourth in the world by share of Bitcoin's total hashrate, and the largest in Latin America.
~5%Of the world's hashrateFrom a country of seven million people, on hydro alone.
+54%Growth per yearDriven by professional operations moving in, not retail speculation.

On the legal side, straight facts. Mining is legal in Paraguay and taxed like any other business — there is no special crypto-mining tax. A dedicated mining bill has been in front of the legislature since 2024 and has not passed, so ordinary commercial and environmental law is what applies. We import through the normal legal channel: customs-cleared, with despacho, and a factura legal issued in Paraguay. Anyone telling you the country has a bespoke crypto framework is selling you something.

05 Included

Everything except the deposit is in the machine price.

You buy the hardware through us, we order it in China, and from that moment it is our problem until it is hashing in your pool.

Shipping & customs

Freight from China, customs clearance and all import handling. Roughly two weeks in transit, one week at customs.

Legal import documents

Machines are legally imported and cleared. You receive the despacho and a factura legal issued in Paraguay.

Transport & racking

Delivery to the facility, physical installation and connection into the hydro loop.

Setup & configuration

Firmware, tuning and network configuration — brought online and verified before handover.

Your pool, your control

We configure the pool in your name and hand it over to you. Payouts go directly to you; we never hold your coins.

One year of service transport

Machine warranty from Bitmain, plus transport to and from service for the first year at our cost.

Cleaning & machine care

Routine cleaning, inspection and day-to-day management of your units.

Full infrastructure upkeep

Distilled water, pumps, heat exchange and the entire cooling plant. The part nobody tells you about until it breaks.

Security & monitoring

24/7 on-site guards, camera coverage, and hardware monitoring through Foreman.

06 Hardware

Pick your machines. We quote today's price.

This is not a shop and there is no checkout — you cannot pay here and we would not want you to. Build a list, send it, and we come back with the real cost from China plus your electricity tier. Hydro is Bitmain only; for air-cooled, tell us the model and we source it.

Hydro · Bitmain

Antminer S21 Hydro

Hashrate335 TH/s
Power draw5,360 W
Efficiency16.0 J/TH

The first S21 hydro generation. The cheapest way into liquid cooling when the price is right.

Hydro · Bitmain

Antminer S21+ Hydro

Hashrate395 TH/s
Power draw5,925 W
Efficiency15.0 J/TH

A step up in raw hashrate over the base S21 Hydro, in a similar efficiency class.

Hydro · Bitmain

Antminer S21 XP Hydro

Hashrate473 TH/s
Power draw5,676 W
Efficiency12.0 J/TH

Proven generation at a lower entry cost. Whether it beats the S23 depends entirely on your power tier.

Hydro · Bitmain

Antminer S21 XP+ Hydro

Hashrate500 TH/s
Power draw5,500 W
Efficiency11.0 J/TH

Most efficient of the S21 hydro family, and it draws less power than the XP while hashing more.

Hydro · Bitmain

Antminer S23 Hydro

Hashrate580 TH/s
Power draw5,510 W
Efficiency9.5 J/TH

The first Bitcoin miner to break below 10 J/TH. Our default recommendation for anyone starting now.

Hydro · Bitmain

Antminer S23e Hydro 2U

Hashrate865 TH/s
Power draw8,650 W
Efficiency10.0 J/TH

Rack-dense 2U chassis, for fleets where both slots and electrical headroom run short.

Hydro · Bitmain

Antminer S23 Hydro 3U

Hashrate1160 TH/s
Power draw11,020 W
Efficiency9.5 J/TH

Double the S23 Hydro in one chassis at the same efficiency. The highest output per slot we host.

Hydro machines run inside the HK3 container on a closed distilled-water loop. Bitmain only here — the loop is built to their fittings and pressures.

Any brand · any algorithm

Something else in mind?

The list above is what we host most often, not a limit. If the model you want is not there — another manufacturer, another algorithm, a machine that only just launched — tell us what it is. Our suppliers in China can source most units, and you get a price back rather than a shrug.

07 Who you are dealing with

Two people. Both reachable.

You are about to send hardware worth six figures to a container on another continent. You should know exactly whose hands it lands in — and be able to get one of them on WhatsApp when something matters.

Filip Csaszar and Jaroslav Dzurilla, founders of Acuario Hosting
Filip CsaszarCo-founder
Jaroslav DzurillaCo-founder

Acuario Hosting is run by Filip Csaszar and Jaroslav Dzurilla. We founded it, and we still manage it day to day — there is no layer of account managers between you and the people responsible for your machines.

We have been building businesses in Paraguay for four years, and mining hosting is not the only one. That matters more than it sounds: we did not arrive with the last bull market and we are not planning to leave with the next drawdown. The container, the cooling plant and the security are ours to keep running.

We are Bitcoiners first. We mine Bitcoin, we hold Bitcoin, and we will tell you when we think the timing is wrong for you — including when that means not selling you anything this quarter.

4 years in Paraguay2 founders, both hands-onUS LLC working with a Paraguayan operatorReachable on WhatsApp
See it, don't take our word

Meet Acuario Hosting

One minute from the operation in Paraguay — the container, the machines, the people.

08 Straight answers

The questions people actually ask.

Including the uncomfortable ones. If something here is a dealbreaker, better you know now than after signing.

What is the deposit and do I lose it?

One deposit per machine: $350 for air-cooled, $500 for hydro. At the end of the contract it is not refunded in cash — it is used up as electricity, covering your final power bills until it is gone. Either way, the money is spent on your own machines. Nobody loses it.

How do I pay?

USDT and USDC. Electricity is billed with a minimum of one month paid in advance. Pay six months ahead and we apply a rebate on the electricity rate, or agree other terms with us.

What happens if mining stops being profitable?

Straight answer: the hosting contract stands and electricity remains payable. We will not pretend otherwise. That is why the calculator above shows you the breakeven price before you sign, and why our power tier matters more than any other number on this page.

Is my hardware insured?

No. Insurance is outside our services and each client arranges their own. We provide 24/7 on-site security, camera coverage and Foreman monitoring, but the machine remains your asset and your risk.

What happens when the contract ends?

If you do not renew, the machine is yours to collect or ship wherever you want, at your cost. We hand it over — the logistics from that point are handled by you. Your remaining deposit is consumed as electricity on the final bills.

Which machines can I host?

Hydro hosting is Bitmain only — S21 and S23 series. For air-cooled hosting we work with a range of models and brands, including Scrypt machines like the L9 and L11 that mine Litecoin and Dogecoin. If we do not list the model you want, tell us: our suppliers in China can source most units.

Why is the machine price not listed?

Because it changes daily with the Chinese market and quoting a stale number would be dishonest. We verify the real price before every purchase and quote you what it actually costs. Volume discounts apply from 5–10, 10–20 and 50–100 units.

Do you take small clients?

Yes — the minimum order is a single machine. We host for individuals with one miner and for operations running large fleets, and we can expand capacity for serious volume. The electricity tier is the same published scale for everyone.

Next step

Tell us how many machines.
We come back with real numbers.

Send us the model and quantity you are considering. We verify today's price in China, calculate your electricity tier and come back with a written offer — no obligation, no pressure.

Build your enquiry →WhatsApp us

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