# Solo Mining NerdMiner NerdQaxe+ on Quai-SHA (QUAI)

Machine-readable solo mining datasheet for running **NerdMiner NerdQaxe+** on the **Quai-SHA (QUAI)** SHA-256 network. Evaluates hashrate output, electrical operational expenditure, Poisson block-finding probabilities, and mining economics tracked by BackPoW.

## Executive Summary

- Target Rig: NerdMiner NerdQaxe+ (ASIC)
- Target Network: Quai-SHA (QUAI) — Algorithm: SHA-256
- Rig Hashrate: 2.50 TH/s (2.497500e+12 H/s)
- Power Consumption: 50 W (1.20 kWh/day)
- Energy Efficiency: 20.02 J/TH
- Network Hashrate: 149.55 PH/s (1.495535e+17 H/s)
- Network Hash Share: 1.669971e-05 (0.001670%)
- Expected Block Discovery: about 435.5 blocks per year (mean time: ~20.1 hours)
- Operational Breakeven Electricity: 0.0780 USD/kWh

## Solo Mining Metrics Table

| Metric | Value | Unit | Description |
| --- | --- | --- | --- |
| Mining Device | NerdMiner NerdQaxe+ | text | Hardware model name |
| Device Class | ASIC | text | ASIC, GPU, or CPU architecture |
| Device Hashrate | 2.50 TH/s | H/s | Nominal hashrate on SHA-256 |
| Device Power Draw | 50 | Watts | Power consumption at wall |
| Energy Efficiency | 20.02 J/TH | unit | Energy per unit hash computation |
| Network Hashrate | 149.55 PH/s | H/s | Total active network hash power |
| Network Difficulty | 173,227,368,067M | number | Current consensus target difficulty |
| Block Time (Observed) | 1.2 | seconds | Average interval between blocks |
| Block Reward | 9.7800 | QUAI | Full coinbase block reward + fees |
| Coin Spot Price | 0.0080 | USD | Current market exchange rate |
| Single Block Value | 0.08 | USD | Gross fiat value of one block |
| Mean Time to Block | 20.1 hours | time | T = (Nethash / Hashrate) * BlockTime |
| Daily Block Probability | 69.65% | percent | 24-hour Poisson chance |
| Monthly Block Probability | 99.99% | percent | 30-day Poisson chance |
| 1-Year Block Probability | 99.99% | percent | 365-day Poisson chance |
| 3-Year Block Probability | 99.99% | percent | 3-year cumulative chance |
| Expected Blocks / Year | 435.5394 | count | Average over 365.25 days |
| Daily Gross Output | 11.662081 | QUAI | Expected daily coin yield |
| Daily Gross Value | 0.09 | USD | Revenue before power costs |
| Daily Energy Consumed | 1.20 | kWh/day | Kilowatt-hours consumed |
| Power Cost @ 0.05 USD/kWh | 0.06 | USD/day | Low industrial tariff |
| Power Cost @ 0.08 USD/kWh | 0.10 | USD/day | Standard mining tariff |
| Power Cost @ 0.10 USD/kWh | 0.12 | USD/day | Residential tariff |
| Breakeven Electricity | 0.0780 | USD/kWh | Max rate before loss |
| Hardware Price | Market dependent | USD | Market range (min / med / max) |

## Poisson Block Discovery Model & Variance

Solo mining block discovery follows a memoryless Poisson process where every hash attempt has an identical, independent success probability.

- Formula: `P(X >= 1) = 1 - exp(-t / T)`
- `t` is mining duration in seconds
- `T` is mean time between blocks: `T = (Network Hashrate / Miner Hashrate) * Block Time`

Luck percentile table (reference electricity rate 0.08 USD/kWh):

| Luck Scenario | Percentile | Duration | Power (kWh) | Cost @ 0.08 |
| --- | --- | --- | --- | --- |
| 10% Lucky Hit | 10th | 2.1 hours | 0.1 | 0.01 USD |
| 50% Median | 50th | 14.0 hours | 0.7 | 0.06 USD |
| 90% Bad Luck | 90th | 46.3 hours | 2.3 | 0.19 USD |
| 95% Extreme Drought | 95th | 2.5 days | 3.0 | 0.24 USD |

## Hardware Benchmark Profile

- Device: NerdMiner NerdQaxe+
- Slug: nerdminer-nerdqaxe
- Architecture: ASIC
- Algorithm: SHA-256
- Hashrate: 2.50 TH/s
- Power: 50 W
- Efficiency: 20.02 J/TH
- Market Cost: Market dependent

## Blockchain Network Overview

- Blockchain: Quai-SHA (QUAI)
- Consensus: SHA-256
- Network Hashrate: 149.55 PH/s (1.495535e+17 H/s)
- Difficulty: 173,227,368,067M
- Block Time: 1.2 seconds
- Block Reward: 9.7800 QUAI (approx 0.08 USD)
- Spot Price: 0.0080 USD
- Cost of Production (Flagship): 0.00 USD (Bitmain Antminer S23 XP Hyd)

## Tracked Solo Mining Pools

Solo pools for Quai-SHA (QUAI) routing 100% of block rewards to the miner address:

| Pool Name | Fee | Link | Low Hashrate |
| --- | --- | --- | --- |
| stratumx.org | 0% | [stratumx.org](https://www.stratumx.org) | No |
| 2miners.com | 1.5% | [2miners.com](https://solo-quaisha.2miners.com) | No |
| k1pool.com | 2% | [k1pool.com](https://k1pool.com/pool/quaisha256solo) | No |
| himpool.com | 2% | [himpool.com](https://himpool.com) | No |
| mining-dutch.nl | 2.5% | [mining-dutch.nl](https://www.mining-dutch.nl/pools/quai.php) | No |
| public-pool-btc.ru | 0% | [public-pool-btc.ru](https://public-pool-btc.ru) | Yes |
| kardanpool.com | 1.5% | [kardanpool.com](https://kardanpool.com/quai) | Yes |

## Machine-Readable JSON Summary

```json
{
  "coin_id": "Quai-SHA",
  "coin_name": "Quai-SHA",
  "ticker": "QUAI",
  "algorithm": "SHA-256",
  "hardware_name": "NerdMiner NerdQaxe+",
  "hardware_slug": "nerdminer-nerdqaxe",
  "hardware_type": "ASIC",
  "miner_hashrate_h_s": 2497500000000.0,
  "power_watts": 50.0,
  "efficiency": "20.02 J/TH",
  "network_hashrate_h_s": 1.4955353613598256e+17,
  "difficulty": "173,227,368,067M",
  "block_time_seconds": 1.21,
  "block_reward_coins": 9.78,
  "spot_price_usd": 0.00802405,
  "single_block_value_usd": 0.07847520899999999,
  "mean_time_to_block_seconds": 72456.36785767323,
  "daily_block_probability": 0.696520670050305,
  "monthly_block_probability": 0.9999999999999997,
  "yearly_block_probability": 1.0,
  "expected_blocks_per_year": 435.5393588316338,
  "daily_gross_usd": 0.09357711762365081,
  "daily_kwh": 1.2000000000000002,
  "breakeven_electricity_usd_per_kwh": 0.07798093135304233,
  "hardware_price_usd": null,
  "retrieved_utc": "2026-10-21T18:57:14Z"
}
```

## Provenance & Integration Links

- Retrieved: 2026-10-21T18:57:14Z
- Canonical HTML page: https://backpow.com/Quai-SHA/nerdminer-nerdqaxe
- Coin datasheet: https://backpow.com/Quai-SHA.md
- Hardware datasheet: https://backpow.com/hardware/nerdminer-nerdqaxe.md
- Solo pools directory: https://backpow.com/solo-pools.md
- Live queries over MCP: https://mcp.backpow.com/mcp (tools `calculate_solo_mining_odds`, `get_hardware_benchmarks`)
- Licence: CC BY 4.0 — https://backpow.com/llms.txt