Solo vs Pool Mining: Positive EV May Lead to 80% Chance of Zero Blocks

A growing debate among miners centers on the effectiveness of solo versus pool mining. Many individuals report that even with a positive expected value, the probability of mining no blocks can remain as high as 80%. This raises questions about the true benefits of solo mining versus pooling resources.

The Basics

Individuals engaged in solo and pool mining often focus on expected value as a guiding metric. This is especially true for hobby miners using small setups. However, variance plays a significant role as well. Key factors to consider include:

• P(0 blocks): probability of mining nothing after a year

• P(loss): likelihood of a negative net due to electricity costs

• P(solo underperforms pool): regret factor if solo performance is insufficient

Mining Example in Focus

Consider a small hobby-class setup mining Bitcoin Cash (BCH) with:

• Hashrate: 9.4 TH/s

• Power: 200W

• Electricity Costs: $450

• Pool Fee: 1%

Data shows positive expected value can coexist with high chances of achieving zero blocks mined. The structure of mining pools often shifts the variance premium, which affects outcomes.

User Perspectives

Community threads reveal diverse opinions on this topic:

1. "My miner runs luxOS; I send 80% of my hashrate to a pool and 20% to solo mining. I know I probably won't find a block, but it's thrilling to try!"

2. One user clarified, "I’m not arguing that solo mining is bad. I just want to differentiate expected value from actual odds. With small setups, these can vary widely."

3. Another person pointed out critical trade-offs: optimizing for long-run EV, entertainment, decentralization, or steady cash flow.

"If your expected blocks over a year is between 0.6 and 0.9, the median outcome is still zero."

This highlights that the reality of solo mining can fall short of expectations even with promising forecasts.

Key Insights

• 📉 80% probability of not mining any blocks remains a real threat.

• 💬 "Are you mining for long-term returns, excitement, or ideology?"

• 🔌 A solid setup can still leave moments of disappointment while solo mining.

Miners facing these odds must weigh their options carefully, balancing the thrill of solo mining against the higher likelihood of missing out altogether.

Expect the Unexpected in Mining Outcomes

As solo mining continues to captivate hobby miners, we can expect the trend to evolve with a heightened focus on collaboration through pool mining. Experts estimate a growing number of miners will shift their resources toward pools, increasing efficiency and enhancing the probability of consistent returns. With the probability of achieving zero blocks hovering at 80%, miners seeking reliable outcomes will likely lean into communal efforts over personal pursuits. This transition not only reflects a practical approach but also aligns with a broader trend of community-driven models in tech, especially as energy costs rise and individual attempts yield diminishing returns.

Resilient Spirits of the Past

This scenario recalls the Gold Rush of the mid-1800s, where prospectors staked claims with dreams of striking it rich, only to face harsh realities—many left empty-handed. But those who banded together in mining towns often found success, sharing resources and expertise while weathering challenges together. Just as those early miners learned the value of collaboration and support in their pursuits, today’s crypto miners can draw lessons from that era, recognizing that working alongside others may turn the tide where solo efforts fail. This historical echo emphasizes the power of community in overcoming odds and achieving collective goals.