Bitmain Antminer A3 on Sia — Mining Profit, Solo Odds & Cost of Production
812.55 GH/s · Sia · network 4.54 PH/s. A Bitmain Antminer A3 solo mining Sia (SC) has about 9 blocks per year, i.e. an expected block roughly every 39 days for the full 30,000.0000 SC (≈ 31 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) | 0.78 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 | -1.37 USD / day | Operational profit/loss after electricity |
| Operational Breakeven | 0.025 USD/kWh | Maximum electricity tariff before negative profit |
| Cost of Production (@ 0.069$ kWh) | 0.00281 USD per SC | Direct electricity expense to produce 1 SC |
| Solo Discovery Expectation | 1 block every ~39 days | Poisson arrival time at network hashrate 4.54 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 4.54 PH/s Sia network that is about 9 blocks per year — expected one block roughly every 39 days, for the full 30,000.0000 SC (≈ 31 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 9.33 blocks, worth about $286 — you would burn roughly 3x more in electricity than that reward is worth.
The operational breakeven threshold is 0.025 USD/kWh. Expected net operating margin at benchmark tariffs:
- At 0.040 USD/kWh (Hydro / Renewable): -0.46 USD / day
- At 0.069 USD/kWh (Standard Industrial): -1.37 USD / day
- At 0.120 USD/kWh (Residential Grid): -2.96 USD / day
Break-even Coin Price Target: For this hardware to break even on electricity, Sia must trade at or above 0.00281 USD at standard industrial power (0.069 USD/kWh), or 0.00489 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 39 days, real-world dispersion ranges across 5% and 50% quantiles:
- Lucky streak (5% Odds): Block within ~2 days (1-in-20 fastest discovery, power cost: ~4 USD)
- Median expectation (50% Odds): Block within ~27 days (Nominal median, power cost: ~58 USD)
- Bad luck streak (5% Odds): Can stretch up to ~117 days (1-in-20 extended dry spell, power cost: ~253 USD)
High Variance Alert: In a 1-in-20 severe drought (~117 days), cumulative electricity burned (~253 USD) will exceed the block reward value (31 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 | 1.09 yr | 60.00% |
How the odds have moved
Sia's network hashrate has been essentially flat since 2026-09-08, from 4.54 PH/s to 4.54 PH/s — so your odds are unchanged.
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 2.52%, yearly chance 99.99%.
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 4.54 PH/s Sia network that is about 9 blocks per year — expected one block roughly every 39 days, for the full 30,000.0000 SC (≈ 31 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 0.025 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 117 days, accumulating roughly 253 USD in power costs.