# Solo Mining GeForce RTX 3090 on Nexa (NEXA)

Machine-readable solo mining datasheet for running **GeForce RTX 3090** on the **Nexa (NEXA)** NexaPow network. Evaluates hashrate output, electrical operational expenditure, Poisson block-finding probabilities, and mining economics tracked by BackPoW.

## Executive Summary

- Target Rig: GeForce RTX 3090 (GPU)
- Target Network: Nexa (NEXA) — Algorithm: NexaPow
- Rig Hashrate: 129.70 MH/s (1.297010e+08 H/s)
- Power Consumption: 260 W (6.24 kWh/day)
- Energy Efficiency: 2.00 W/MH/s (J/MH)
- Network Hashrate: 2.67 TH/s (2.667389e+12 H/s)
- Network Hash Share: 4.862471e-05 (0.004862%)
- Expected Block Discovery: about 12.8 blocks per year (mean time: ~28.5 days)
- Operational Breakeven Electricity: 0.0273 USD/kWh

## Solo Mining Metrics Table

| Metric | Value | Unit | Description |
| --- | --- | --- | --- |
| Mining Device | GeForce RTX 3090 | text | Hardware model name |
| Device Class | GPU | text | ASIC, GPU, or CPU architecture |
| Device Hashrate | 129.70 MH/s | H/s | Nominal hashrate on NexaPow |
| Device Power Draw | 260 | Watts | Power consumption at wall |
| Energy Efficiency | 2.00 W/MH/s (J/MH) | unit | Energy per unit hash computation |
| Network Hashrate | 2.67 TH/s | H/s | Total active network hash power |
| Network Difficulty | 73598.64540269112 | number | Current consensus target difficulty |
| Block Time (Observed) | 119.5 | seconds | Average interval between blocks |
| Block Reward | 5,000,000.0000 | NEXA | Full coinbase block reward + fees |
| Coin Spot Price | 0.0000 | USD | Current market exchange rate |
| Single Block Value | 4.84 | USD | Gross fiat value of one block |
| Mean Time to Block | 28.5 days | time | T = (Nethash / Hashrate) * BlockTime |
| Daily Block Probability | 3.45% | percent | 24-hour Poisson chance |
| Monthly Block Probability | 65.16% | 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 | 12.8374 | count | Average over 365.25 days |
| Daily Gross Output | 175,734.312910 | NEXA | Expected daily coin yield |
| Daily Gross Value | 0.17 | USD | Revenue before power costs |
| Daily Energy Consumed | 6.24 | kWh/day | Kilowatt-hours consumed |
| Power Cost @ 0.05 USD/kWh | 0.31 | USD/day | Low industrial tariff |
| Power Cost @ 0.08 USD/kWh | 0.50 | USD/day | Standard mining tariff |
| Power Cost @ 0.10 USD/kWh | 0.62 | USD/day | Residential tariff |
| Breakeven Electricity | 0.0273 | USD/kWh | Max rate before loss |
| Hardware Price | 580 / 650 / 720 USD | 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 | 3.0 days | 18.7 | 1.50 USD |
| 50% Median | 50th | 19.7 days | 123.1 | 9.84 USD |
| 90% Bad Luck | 90th | 65.5 days | 408.8 | 32.70 USD |
| 95% Extreme Drought | 95th | 85.2 days | 531.9 | 42.55 USD |

## Hardware Benchmark Profile

- Device: GeForce RTX 3090
- Slug: geforce-rtx-3090
- Architecture: GPU
- Algorithm: NexaPow
- Hashrate: 129.70 MH/s
- Power: 260 W
- Efficiency: 2.00 W/MH/s (J/MH)
- Market Cost: 580 / 650 / 720 USD

## Blockchain Network Overview

- Blockchain: Nexa (NEXA)
- Consensus: NexaPow
- Network Hashrate: 2.67 TH/s (2.667389e+12 H/s)
- Difficulty: 73598.64540269112
- Block Time: 119.5 seconds
- Block Reward: 5,000,000.0000 NEXA (approx 4.84 USD)
- Spot Price: 0.0000 USD
- Cost of Production (Flagship): 0.00 USD (DragonBall Miner A21)

## Tracked Solo Mining Pools

Solo pools for Nexa (NEXA) routing 100% of block rewards to the miner address:

| Pool Name | Fee | Link | Low Hashrate |
| --- | --- | --- | --- |
| woolypooly.com | 0.9% | [woolypooly.com](https://woolypooly.com) | No |
| pool.kryptex.com | 1% | [pool.kryptex.com](https://pool.kryptex.com/nexa) | No |
| 2miners.com | 1.5% | [2miners.com](https://solo-nexa.2miners.com) | No |
| inipool.org | 3% | [inipool.org](https://nexa-solo.inipool.org) | No |
| acc-pool.pw | 0% | [acc-pool.pw](https://solo.nexa.acc-pool.pw) | Yes |
| grandpool.io | 0.01% | [grandpool.io](https://grandpool.io/pools/nexa) | Yes |
| ethcore.ru | 0.5% | [ethcore.ru](https://ethcore.ru/pool/nexapoolsolo) | Yes |

## Machine-Readable JSON Summary

```json
{
  "coin_id": "Nexa",
  "coin_name": "Nexa",
  "ticker": "NEXA",
  "algorithm": "NexaPow",
  "hardware_name": "GeForce RTX 3090",
  "hardware_slug": "geforce-rtx-3090",
  "hardware_type": "GPU",
  "miner_hashrate_h_s": 129701000.0,
  "power_watts": 260.0,
  "efficiency": "2.00 W/MH/s (J/MH)",
  "network_hashrate_h_s": 2667388764274.714,
  "difficulty": 73598.64540269112,
  "block_time_seconds": 119.532,
  "block_reward_coins": 5000000.0,
  "spot_price_usd": 9.68033e-07,
  "single_block_value_usd": 4.840165,
  "mean_time_to_block_seconds": 2458256.403352982,
  "daily_block_probability": 0.034536384634193174,
  "monthly_block_probability": 0.6516006422596844,
  "yearly_block_probability": 0.9999973405508898,
  "expected_blocks_per_year": 12.837391558080133,
  "daily_gross_usd": 0.17011661412926746,
  "daily_kwh": 6.24,
  "breakeven_electricity_usd_per_kwh": 0.027262277905331322,
  "hardware_price_usd": {
    "min": 580.0,
    "median": 650.0,
    "max": 720.0
  },
  "retrieved_utc": "2026-10-07T20:25:28Z"
}
```

## Provenance & Integration Links

- Retrieved: 2026-10-07T20:25:28Z
- Canonical HTML page: https://backpow.com/Nexa/geforce-rtx-3090
- Coin datasheet: https://backpow.com/Nexa.md
- Hardware datasheet: https://backpow.com/hardware/geforce-rtx-3090.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