Antminer S21 XP Hydro electricity cost
The reference 5,676.0 W load consumes 136.22 kWh per full day. At $0.08/kWh that is $10.90 per day, $326.94 per 30-day month and $3,977.74 per year. These are calculated costs, not manufacturer claims.
BITMAIN · 473 TH/S REFERENCE VARIANT
Antminer S21 XP Hydro Calculator
473 TH/s at 35°C inlet coolant. Heat is transferred into a liquid loop; room airflow alone does not size that loop.
- Manufacturer hashrate
- 473 TH/s
- Manufacturer power
- 5,676.0 W
- Manufacturer efficiency
- 12.0 J/TH
- Algorithm
- SHA-256
Data last checked: 2026-09-27. Manufacturer specification source: official reference ↗. Unknown fields remain unverified.
YOUR INPUTS USD
$0.00$0.30/kWh
CALCULATED RESULTS 30-day month
- Energy / day
- 136.22 kWh
- Electricity / day
- $10.90
- Electricity / month
- $326.94
- Electricity / year
- $3,977.74
- Estimated BTC / day
- 0.00022511
- Gross revenue / day
- $18.95
- Pool fees / day
- $0.38
- Operating profit / day
- $7.67
- Operating profit / month
- $230.16
- Operating profit / year
- $2,800.27
- Break-even electricity
- $0.1363/kWh
- Break-even BTC price
- $49,398.94
- Simple hardware payback
- Enter hardware price
- Annual operating return
- Unavailable
Source: current user inputs and published formulas. Last updated: on each input change.
Assumes current network conditions remain constant. Estimates exclude taxes, financing, repairs and resale value.
Last updated: . Source: mempool.space — BTC/USD price, mempool.space — estimated network hashrate and current difficulty, mempool.space — mean fees of latest 10 confirmed blocks; subsidy derived from next height.
Profitability at this hashrate
The 473 TH/s reference contributes 473,000,000,000,000 hashes per second to the difficulty-based model. Expected BTC production requires difficulty, subsidy and estimated block fees. The calculator above displays revenue only when those values and a BTC price have a valid source.
Run a Antminer S21 XP Hydro revenue scenario →Break-even electricity
At full uptime, divide daily proceeds after pool fees by 136.22 kWh to obtain this reference’s operating tariff threshold. Each $0.01/kWh adds $1.36 per day to the electricity bill. Hardware recovery and hosting fees are separate.
Efficiency: rated and calculated
The manufacturer lists 12.00 J/TH. Dividing the reference power by hashrate gives 12.0000 J/TH. Small differences can result from nominal specification rounding; compare values at the same operating point.
Heat output
5,676.0 W corresponds to 19,367.3 BTU/hour. Nearly all electrical input ultimately becomes heat. This hydro model rejects heat through a liquid loop; airflow alone cannot design its cooling system.
Cooling requirements
The reference heat load is 1.614 cooling tons. At 25°C intake and 35°C exhaust, the ideal all-air equivalent is 1,694 m³/h. This excludes pressure loss, humidity, altitude and recirculation. Hydro references require separate coolant engineering.
Operating cost beyond ASIC power
Adding an illustrative 10% facility-power allowance to this reference adds $1.09 per day at $0.08/kWh. It does not increase the 473 TH/s nominal hashrate. Hosting management, repairs and capital must be entered separately.
Add this model to a farm scenario →Methodology
Daily kWh = watts ÷ 1,000 × 24 × uptime. BTC/day uses difficulty × 2³² expected hashes per block. Heat = watts × 3.412142 BTU/hour. Assumes current network conditions remain constant.
Read formulas, limits and omitted costs →Frequently asked questions
Which Antminer S21 XP Hydro variant is used?
473 TH/s reference variant. 473 TH/s at 35°C inlet coolant. Heat is transferred into a liquid loop; room airflow alone does not size that loop.
How much electricity does this Antminer S21 XP Hydro use in a day?
136.22 kWh at the reference running power and 100% uptime. Change watts or uptime in the calculator for your measured scenario.
Does a positive operating estimate recover the hardware price?
No. Operating profit excludes capital. Enter your purchase price and use simple payback; future network conditions are not guaranteed.
Interactive cooling scenario
Loading cooling inputs…
Electricity sensitivity table
Fixed reference scenario: Antminer S21 XP Hydro, 5,676.0 W, 100% uptime, 2% pool fee. Interactive inputs above do not overwrite this reference table.
| Rate / kWh | kWh / day | Electricity / day | Electricity / month | Electricity / year | Revenue / day | Profit / day | Profit / month |
|---|---|---|---|---|---|---|---|
| $0.03 | 136.22 | $4.09 | $122.60 | $1,491.65 | $18.95 | $14.48 | $434.49 |
| $0.04 | 136.22 | $5.45 | $163.47 | $1,988.87 | $18.95 | $13.12 | $393.63 |
| $0.05 | 136.22 | $6.81 | $204.34 | $2,486.09 | $18.95 | $11.76 | $352.76 |
| $0.06 | 136.22 | $8.17 | $245.20 | $2,983.31 | $18.95 | $10.40 | $311.89 |
| $0.07 | 136.22 | $9.54 | $286.07 | $3,480.52 | $18.95 | $9.03 | $271.03 |
| $0.08 | 136.22 | $10.90 | $326.94 | $3,977.74 | $18.95 | $7.67 | $230.16 |
| $0.09 | 136.22 | $12.26 | $367.80 | $4,474.96 | $18.95 | $6.31 | $189.29 |
| $0.10 | 136.22 | $13.62 | $408.67 | $4,972.18 | $18.95 | $4.95 | $148.42 |
| $0.12 | 136.22 | $16.35 | $490.41 | $5,966.61 | $18.95 | $2.22 | $66.69 |
| $0.15 | 136.22 | $20.43 | $613.01 | $7,458.26 | $18.95 | $-1.86 | $-55.91 |
| $0.20 | 136.22 | $27.24 | $817.34 | $9,944.35 | $18.95 | $-8.67 | $-260.25 |
Source: the cited reference power and published formulas. Manufacturer data last checked: 2026-09-27. Revenue is a dated scenario using the snapshot below, not a continuously updated quote. Assumes current network conditions remain constant.
Network snapshot last updated: 2026-09-29T12:30:05.000Z. Source: mempool.space — BTC/USD price mempool.space — estimated network hashrate and current difficulty mempool.space — mean fees of latest 10 confirmed blocks; subsidy derived from next height . Refresh the page to request a newer snapshot.
Data sources and field provenance
Data last checked: 2026-09-27. Manufacturer specification source: official reference ↗.
| Field | Value | Source | Checked |
|---|---|---|---|
| hashrate | 473 | Bitmain | 2026-09-27 |
| powerWatts | 5676 | Bitmain | 2026-09-27 |
| efficiencyJTH | 12 | Bitmain | 2026-09-27 |
| algorithm | SHA-256 | Bitmain | 2026-09-27 |
| releaseDate | Not verified | Unknown | Not verified |
| coolingType | hydro | Bitmain | 2026-09-27 |
| noiseDb | Not verified | Unknown | Not verified |
| dimensions | Not verified | Unknown | Not verified |
| weightKg | Not verified | Unknown | Not verified |
Unknown source URLs are null. Record-level references were preserved from the initial review; no new manufacturer verification date is invented. Read the source policy →
Related ASIC references
Curated comparisons
Related calculators
Electricity cost ↗
Turn wall power and your electricity tariff into daily, monthly and yearly running costs.
Mining profitability ↗
Estimate Bitcoin revenue, pool fees and operating profit using a sourced network snapshot.
ASIC ROI & payback ↗
Estimate simple hardware payback and annual operating return from your purchase price.
Mining heat output ↗
Convert ASIC electrical load into thermal output for room and facility planning.
Mining cooling ↗
Estimate the thermal load, cooling tons and ideal ventilation airflow for a group of miners.
Mixed mining farm ↗
Combine multiple ASIC models, facility overhead and hosting fees to estimate fleet energy, revenue and simple payback.