Litecoin mining energy: a transparent estimation framework
Estimate Scrypt mining energy from hash rate, hardware efficiency and facility overhead. Explicit sensitivity scenarios replace unsupported network totals.
Sources, review record & reproducibility
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Review target: 2026-09-18. The scheduled review is overdue and remains uncompleted.
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Litecoin mining consumes electricity, but estimating it requires fleet mix, utilization and facility overhead. Shared Dogecoin mining also affects attribution.
This revision removes an unsupported 85–95 MW network estimate and precise per-transaction carbon figures. The calculations below are transparent scenarios, not measurements of the live network.
Separate measurement from a scenario
A measured estimate needs a date, hashrate series, inference window, equipment distribution and overhead method. A scenario asks what consumption would follow from specified inputs.
BITMAIN lists an L9 variant at 16 GH/s and 3,360 W, equivalent to 210 joules per GH. One model's specification does not establish the whole fleet's efficiency. Manufacturer specifications.
Work through the units
One PH/s equals one million GH/s. For an illustrative 3 PH/s network at 210 J/GH:
- IT power = 3,000,000 GH/s × 210 J/GH = 630,000,000 W.
- That is 630 MW before facility overhead.
- A 1.10 overhead multiplier gives 693 MW.
- Continuous operation for 8,760 hours gives about 6.07 TWh annually.
These follow mathematically from the inputs. They do not establish actual current Litecoin consumption. Uptime and equipment mix require evidence.
Show sensitivity instead of false precision
The table assumes 1 PH/s and continuous operation. The 150 and 300 J/GH rows are hypothetical sensitivity inputs; 210 J/GH is the cited device efficiency.
| Assumed efficiency | IT power | With 10% overhead | Annual electricity |
|---|---|---|---|
| 150 J/GH | 150 MW | 165 MW | 1.445 TWh |
| 210 J/GH | 210 MW | 231 MW | 2.024 TWh |
| 300 J/GH | 300 MW | 330 MW | 2.891 TWh |
At fixed efficiency, doubling hashrate doubles modeled power. In real markets, efficiency improvements can change profitability and deployment, so fixed-input comparisons are not forecasts.
The energy-per-transaction trap
Dividing total electricity by transactions assigns an average share. It does not measure electricity caused by one extra transfer: miners continue hashing between blocks regardless of transaction count.
A transaction can batch multiple payments, include change or move exchange funds internally. A card authorization and a blockchain settlement are not automatically equivalent units.
State system boundaries: facilities, cooling, network equipment and surrounding financial infrastructure may be included differently. Match periods and methods before claiming one network is a precise number of times more efficient.
Shared work with Dogecoin
Merged mining allows Scrypt work to contribute to separate chains. Do not count the same electricity fully for Litecoin and fully for Dogecoin and then add the figures.
Allocating shared costs is an accounting decision. Revenue share, security attribution and marginal causation answer different questions. Publish the method and sensitivity. The merged-mining guide explains the physical and economic relationship.
Electricity is not a carbon estimate
Converting kWh to emissions needs evidence about where and when consumption occurred. Grid averages, marginal generation and renewable contracts are different concepts. Equipment manufacturing and disposal can add lifecycle effects.
An unsupported CO2-per-transaction number combines uncertainty in numerator and denominator. A range is meaningful only if its limits come from a documented model.
What an update should publish
Include the hashrate inputs, date, efficiency assumptions, units, overhead, uptime, allocation and emissions sources. Make the calculations reproducible and distinguish observations from assumptions.
The mining calculator models an operator's costs; it is not a network energy audit. Profitability also depends on market price, difficulty, pool terms and downtime.
Frequently asked questions
Do low fees prove low electricity consumption?
No. Transaction fees and network electricity are different quantities.
Does Dogecoin use zero energy when merged-mined?
Work is shared. A marginal attribution question must not be confused with the physical operation consuming electricity.
Are these tables current estimates?
No. They are labeled scenarios for inspecting units and assumptions.
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