Bitmain Antminer A3 on Sia — Mining Profit, Solo Odds & Cost of Production
812.55 GH/s · Sia · network 2.99 PH/s. A Bitmain Antminer A3 solo mining Sia (SC) has about 14 blocks per year, i.e. an expected block roughly every 25 days for the full 30,000.0000 SC (≈ 27 USD) reward.
Bitmain Antminer A3 on Sia — Mining Truth Benchmark & Specifications
Consolidated PoW oracle metrics for operating a Bitmain Antminer A3 on Sia (SC) at live network difficulty and benchmark industrial electricity (0.069 USD/kWh):
| Specification / Metric | Value | Context & Meaning |
|---|---|---|
| Algorithm & Hashrate | 812.55 GH/s on Sia | Nominal device hashrate |
| Rated Power Draw | 1,300 W (625.04 MH/W) | Energy efficiency threshold |
| Daily Pool Yield (Gross) | 1.06 USD / day | Expected gross pool revenue at spot price |
| Power Consumption Cost | 2.15 USD / day | Electricity expense at 0.069 USD/kWh (31.2 kWh/day) |
| Net Daily Operating Margin | -1.10 USD / day | Operational profit/loss after electricity |
| Operational Breakeven | 0.034 USD/kWh | Maximum electricity tariff before negative profit |
| Cost of Production (@ 0.069$ kWh) | 0.00182 USD per SC | Direct electricity expense to produce 1 SC |
| Solo Discovery Expectation | 1 block every ~25 days | Poisson arrival time at network hashrate 2.99 PH/s |
Can you solo mine Sia with a Bitmain Antminer A3?
Yes — a Bitmain Antminer A3 (812.55 GH/s) can solo mine Sia (SC) via a solo pool. At Sia's 2.99 PH/s Sia network that is about 14 blocks per year — expected one block roughly every 25 days, for the full 30,000.0000 SC (≈ 27 USD) block. BackPoW computes this from live network difficulty using a Poisson block-discovery model. Realistically this is genuinely worth a patient solo run.
Hardware Tier & Ecosystem Ranking on Sia
The Bitmain Antminer A3 is categorized in the Mid-Range Workhorse Tier (Middle quartile hashrate offering solid pool mining throughput with moderate solo variance.). Among all 2 tracked models on Sia, it ranks #1 in electrical efficiency (625,042,307.69 H/W) and #1 in raw hashrate (812.55 GH/s).
Electricity Operating Costs & Breakeven
Running a Bitmain Antminer A3 (1,300 W) pulls about 31.20 kWh per day (949.7 kWh per month). At the standard rate of 0.069 USD/kWh, electricity costs roughly 2.15 USD per day (65.53 USD/month or 786 USD/year). Statistically that year returns 14.43 blocks, worth about $386 — you would burn roughly 2x more in electricity than that reward is worth.
The operational breakeven threshold is 0.034 USD/kWh. Expected net operating margin at benchmark tariffs:
- At 0.040 USD/kWh (Hydro / Renewable): -0.19 USD / day
- At 0.069 USD/kWh (Standard Industrial): -1.10 USD / day
- At 0.120 USD/kWh (Residential Grid): -2.69 USD / day
Break-even Coin Price Target: For this hardware to break even on electricity, Sia must trade at or above 0.00182 USD at standard industrial power (0.069 USD/kWh), or 0.00316 USD at residential power (0.120 USD/kWh).
Bankroll & Variance Risk Simulator
Solo mining block discovery follows a memoryless Poisson distribution. While the average wait is 25 days, real-world dispersion ranges across 5% and 50% quantiles:
- Lucky streak (5% Odds): Block within ~1 days (1-in-20 fastest discovery, power cost: ~3 USD)
- Median expectation (50% Odds): Block within ~18 days (Nominal median, power cost: ~38 USD)
- Bad luck streak (5% Odds): Can stretch up to ~76 days (1-in-20 extended dry spell, power cost: ~163 USD)
High Variance Alert: In a 1-in-20 severe drought (~76 days), cumulative electricity burned (~163 USD) will exceed the block reward value (27 USD). Pool mining is recommended for risk-averse operators.
Bitmain Antminer A3 Price & Estimated ROI
Current market price: $25–$55 (estimated market price, median $38) (Hardware price estimated).
How other hardware compares on Sia
Devices in the same hashrate class, solo mining Sia at today's difficulty:
| Hardware | Hashrate | Expected block | Chance in 1 year |
|---|---|---|---|
| Baikal BK-B | 79.82 GH/s | 258 days | 75.78% |
How the odds have moved
Sia's network hashrate climbed 23% since 2026-09-22, from 2.44 PH/s to 2.99 PH/s — so the same rig is now 23% less likely to find a block.
How the odds are calculated
Solo mining is memoryless: every hash is an independent lottery ticket, so the wait for a block follows an exponential distribution rather than a fixed schedule. On average a block takes T = network_hashrate ÷ your_hashrate × block_time, and the probability of finding at least one within a window t is P = 1 − e^(−t/T). BackPoW uses this Poisson relation instead of a naive linear estimate. For this pair: daily chance 3.88%, yearly chance 100.00%.
Frequently Asked Questions: Bitmain Antminer A3 on Sia
Can you solo mine Sia with a Bitmain Antminer A3?
Yes — a Bitmain Antminer A3 (812.55 GH/s) can solo mine Sia (SC) via a solo pool. At Sia's 2.99 PH/s Sia network that is about 14 blocks per year — expected one block roughly every 25 days, for the full 30,000.0000 SC (≈ 27 USD) block. BackPoW computes this from live network difficulty using a Poisson block-discovery model.
Is Sia ASIC-resistant, and where does the Bitmain Antminer A3 stand?
Sia is an ASIC-dominated algorithm. The Bitmain Antminer A3 delivers 812.55 GH/s (#1 of 2 models on Sia). It operates in the Mid-Range Tier (middle quartile), offering solid pool mining throughput with moderate solo variance.
What is the operating power cost and breakeven electricity rate for a Bitmain Antminer A3 on Sia?
At 1,300 W, operating a Bitmain Antminer A3 consumes 31.20 kWh/day (949.7 kWh/month). At standard electricity (0.069 USD/kWh), the power bill is 2.15 USD/day (65.53 USD/month). The operational breakeven threshold is 0.034 USD/kWh.
What happens if my Bitmain Antminer A3 encounters a severe dry spell on Sia?
Block discovery is an independent Poisson process with no memory. In a 1-in-20 bad luck drought (5% worst luck), finding a block can stretch up to 76 days, accumulating roughly 163 USD in power costs.
Alternative Mining Options for Bitmain Antminer A3
Comparing solo odds, jackpot block value, and daily pool revenue across other coins minable with this rig:
| Coin | Expected block | Block value | Pool earnings / Day |
|---|---|---|---|
| ScPrime (SCP) | 15 days | 0.59 USD | 0.04 USD |