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Before buying a Bitcoin ASIC, many customers first look at the machine's price and hashrate. This is normal, but it's not enough. Profitability mainly depends on one factor that recurs daily: the price of electricity.

An ASIC might perform well on paper but become unprofitable if its electricity cost is too high. Conversely, a carefully chosen machine, installed under the right conditions, can be much more consistent over time.

Why Electricity is the Key Factor

An ASIC operates continuously. It consumes electricity 24 hours a day, 7 days a week. Even a small difference in consumption can become significant over an entire month.

To evaluate a mining project, you must therefore compare three elements: the computing power, the machine's consumption, and the price per kilowatt-hour.

Data to Know Before Calculating

To make a useful calculation, you need some simple information.

The ASIC's Hashrate

Hashrate indicates the machine's computing power. It is often expressed in TH/s, i.e., terahashes per second. The higher it is, the more the machine contributes to mining.

Electricity Consumption

Consumption is expressed in watts. For example, an ASIC might consume 3,000 watts, or 3 kW, when operating.

The Price of Electricity

The price of electricity is expressed in euros per kilowatt-hour. This figure allows you to calculate the daily and monthly cost of the machine.

How to Calculate the Electrical Cost of an ASIC

The basic formula is simple:

Consumption in kW x 24 hours x price per kWh = daily electrical cost

If a machine consumes 3 kW and electricity costs 0.20 euros per kWh, the calculation gives:

3 x 24 x 0.20 = 14.40 euros per day

Over 30 days, this represents approximately 432 euros for electricity. This amount must be compared to the estimated mining revenue.

Why Revenue is Never Fixed

Bitcoin mining revenues vary over time. They depend on the price of Bitcoin, mining difficulty, pool fees, and the machine's actual performance.

For this reason, a profitability calculation should always be considered an estimate, not a guarantee of earnings.

Don't Forget Other Costs

Electricity is the main expense, but it's not the only one. The total cost can also include delivery, cables, ventilation, an enclosure, electrical protection, maintenance, or hosting.

For a serious purchase, you must therefore consider the total cost. A cheaper machine might ultimately cost more if it consumes too much or requires a complicated installation.

Comparing Several ASICs with the Same Electricity Price

To choose correctly, it's best to compare several machines with the same kWh price. This allows you to see which machine offers the best balance between power, consumption, and budget.

The useful indicator is energy efficiency, expressed in joules per terahash. The lower this figure, the more efficiently the machine uses electricity.

When Hosting Can Become Attractive

If your electricity is expensive, if noise is an issue, or if you cannot manage heat at home, hosting can be a solution to consider.

In this case, the goal is to compare the cost of hosting with the actual cost of a home installation, taking into account comfort, security, and stability.

FAQ

What electricity price is good for mining Bitcoin?

The lower the kWh price, the more favorable the project. There is no universal price, as everything also depends on the machine, the Bitcoin price, and mining difficulty.

Will an ASIC profitable today still be profitable tomorrow?

Not necessarily. Profitability evolves with the market, mining difficulty, and operating costs. You need to track your numbers regularly.

Should I choose the most powerful ASIC?

Not always. A very powerful but overly power-hungry machine might be less interesting than a more efficient model.

Conclusion

Calculating the profitability of a Bitcoin ASIC starts with a simple question: how much does electricity cost to run the machine every day? Once this cost is known, it becomes much easier to compare models and avoid unpleasant surprises.

Happy Mining can help you choose an ASIC suited to your electricity price, installation location, and mining goal.