When you buy a Bitcoin mining rig, the nameplate spec is a promise.

A 270 TH/s miner should hash at 270 TH/s. That's what you paid for. So what happens when it doesn't?

Most hosting providers don't have a clear answer.

At Sazmining, we do — and it's written into our Annual Rig Performance Guarantee. 

This article explains how we calculate rig performance, what the guarantee actually covers, and what you receive if your rig ever comes up short.

What Is Nameplate Hashrate?

Every Bitcoin miner ships with a nameplate hashrate: the manufacturer's rated speed in terahashes per second (TH/s). Think of it like the horsepower rating on a car engine. It's the expected output under normal operating conditions.

For example, the Bitmain Antminer S21 XP has a nameplate hashrate of 270 TH/s. That means it computes 270 trillion hashes per second as it works to find Bitcoin blocks.

In practice, temperatures, power fluctuations, and brief infrastructure interruptions can cause a rig to dip below that number from time to time. A small, temporary drop is normal. Sustained underperformance is not.

The Performance Formula

Sazmining measures performance as the percentage of nameplate hashrate your rig actually delivers, averaged across a full year.

Annual Performance % = (Actual Average Hashrate / Nameplate Hashrate) x 100

If your 270 TH/s rig averaged 265 TH/s over 12 months, that's roughly 98.1% — well above the guarantee threshold at any Sazmining location.

This measurement is tracked internally by our operations team. Soon, you'll be able to see it yourself in the Sazmining customer dashboard, where your rig's hashrate history and performance data will be available in real time.

Guaranteed Minimums by Location

Performance standards are calibrated to each facility:

Paraguay (Itaipú Hydropower): Your rig is guaranteed to perform at or above 90% of its nameplate hashrate over the year.

Ethiopia (GERD Hydropower) and Norway (99% Carbon-Free Grid): Your rig is guaranteed to perform at or above 95% of its nameplate hashrate over the year.

To put that in concrete terms: a 95% guarantee on a 270 TH/s rig means we're committing to a minimum annual average of 256.5 TH/s. If we fall short of that due to something on our end, you get compensated.

What "Infrastructure Issues" Means

The guarantee covers shortfalls caused by problems on Sazmining's side, such as power delivery interruptions, cooling failures, network outages, or facility-level maintenance.

It does not cover manufacturer defects, force majeure events, or anything outside our operational control. This includes the time a rig spends out of service for repairs. 

Hardware issues and physical repair downtime are outside our control and fall under the manufacturer's warranty. Our team will help you work through that process if it comes up.

The short version: if we caused the problem, we own it.

How Compensation Works

If your rig's annual performance falls below the guaranteed threshold due to an infrastructure issue, you receive prorated credits to your account. These reflect the value of the electricity that should have been spent to reach the performance we guaranteed.

You don't need to file a claim or follow up. Our operations team monitors performance continuously. If a credit is owed, it will be issued.

Frequently Asked Questions

Does the guarantee apply from day one, or is there a waiting period?

The guarantee is annual, so it measures performance over a 12-month period from when your rig goes live. Your rig needs time in operation to establish its performance baseline.

What if my rig underperforms due to a Bitcoin network difficulty adjustment?

Network difficulty is outside our control and does not affect the hashrate guarantee. The guarantee is based on how hard your rig works, not on how much Bitcoin it earns. Difficulty affects revenue, not performance percentage.

How will I know if my rig is on track?

Right now, our operations team monitors this internally. We'll be adding Rig Performance tracking to the dashboard soon.

Until then, reach out to support@sazmining.com, and we can pull the numbers for you.

What counts as a "prorated credit," and how is it calculated?

Credits are calculated based on the value of the electricity that should have been spent to reach the performance we guaranteed. The calculation accounts for how far performance fell short and for how long, relative to your annual period. If you ever have questions about a specific credit, our team will be happy to walk you through it.

Do I need to do anything to claim compensation?

No, Sazmining continuously monitors performance on our end. If a credit is owed, we apply it. You won't need to submit a request or open a ticket.

Why This Matters

Most Bitcoin mining hosts don't publish performance guarantees. They'll reference uptime figures or hardware specs, but few are willing to put a specific, contractual number behind what your rig will actually produce.

At Sazmining, you own your rig. You're paying a management fee to have it operated on your behalf. You deserve to know exactly what you're getting. If we fall short, you deserve to be made whole.

The Annual Rig Performance Guarantee is how we hold ourselves accountable to that.

Want to learn more about owning your own Bitcoin mining rig?

Visit our store to explore available rigs and locations.