## Definition

A mining farm is a large-scale facility purpose-built to house and operate hundreds or thousands of cryptocurrency mining machines simultaneously. Unlike a home setup with a single [mining rig](/glossary/mining-rig), a mining farm is an industrial operation that treats mining as a serious business, investing heavily in power infrastructure, [cooling systems](/glossary/cooling-system), and physical security to maximize uptime and [mining profitability](/glossary/mining-profitability).

Mining farms range from mid-scale operations with a few hundred units in a warehouse to massive facilities consuming hundreds of megawatts. The largest farms operate in regions with cheap, abundant electricity — places like Texas, Paraguay, Kazakhstan, and parts of Scandinavia.

## How It Works

A mining farm follows the same proof-of-work process as any individual miner: [ASIC miners](/glossary/asic-miner) repeatedly hash block headers, competing to find a valid hash below the network's difficulty target. The difference is scale, and scale changes everything.

### Power Infrastructure

Electricity is the single largest operating cost. A facility running 10,000 ASICs at 3,000 watts each needs 30 megawatts of continuous power — roughly equivalent to a small city. Farms secure power through direct utility contracts, behind-the-meter arrangements with power plants, or renewable energy projects like hydroelectric dams and solar arrays.

The [cost of electricity](/glossary/electricity-cost) determines where farms locate. A difference of even one cent per kilowatt-hour can mean millions of dollars per year in savings or losses at scale.

### Cooling

Thousands of ASIC miners generate enormous heat. Mining farms use several cooling strategies:

- **Air cooling**: Massive fan walls push outside air through rows of miners. Works well in cold, dry climates.
- **Immersion cooling**: Miners are submerged in non-conductive dielectric fluid, which absorbs heat more efficiently than air and extends hardware lifespan.
- **Hybrid approaches**: Combining evaporative cooling with directed airflow in moderate climates.

Cooling typically accounts for 10-30% of a farm's total power consumption.

### Network and Uptime

Mining farms require reliable, low-latency internet connections. A disconnected miner earns nothing, so downtime directly kills revenue. Farms maintain redundant internet links, backup generators, and on-site staff to minimize interruptions, often achieving 99.5%+ uptime.

## Why It Matters

Mining farms dominate the Bitcoin network's hash rate. Individual home miners contribute a small fraction of global hash power; the vast majority comes from industrial-scale operations. This concentration has real implications:

- **Network security**: Large farms make Bitcoin expensive to attack. An attacker must outpace the combined hash rate of these facilities to rewrite the blockchain.
- **Geographic distribution**: Where farms locate affects Bitcoin's decentralization. Concentration in a single jurisdiction creates regulatory risk. Distribution across continents makes the network more resilient.
- **Market dynamics**: Farm profitability influences when miners sell or hold bitcoin, affecting supply and price. When farms shut down due to unprofitability, network hash rate drops and difficulty adjusts downward.
- **Energy debate**: Mining farms' energy consumption drives the environmental discussion around Bitcoin. Farms increasingly seek renewable energy, but the narrative remains contentious.

## Farm vs. Home Mining

| Factor | Home Miner | Mining Farm |
|--------|-----------|-------------|
| Units | 1-10 ASICs | 500-100,000+ ASICs |
| Power cost | Retail rate ($0.10-0.30/kWh) | Wholesale rate ($0.03-0.06/kWh) |
| Cooling | Room fans | Industrial HVAC or immersion |
| Maintenance | DIY | Dedicated technicians |
| Noise | Residential problem | Purpose-built or remote location |

The power cost gap alone often makes home mining unprofitable at retail electricity rates. Farms achieve lower per-unit costs through bulk hardware purchasing, favorable pool fee structures, and spreading fixed costs across thousands of machines.

## Who Runs Mining Farms?

Mining farms are operated by several types of entities:

- **Public mining companies**: Marathon Digital, Riot Platforms, CleanSpark, and other publicly traded firms operate some of the largest farms in North America.
- **Private operators**: Many large farms are privately held, particularly in regions with favorable energy costs.
- **Hosting providers**: Companies that build farms to host customer miners, charging a per-kilowatt fee for power, cooling, and maintenance.

## Related Terms

- [ASIC Miner](/glossary/asic-miner)
- [Cooling System](/glossary/cooling-system)
- [Electricity Cost](/glossary/electricity-cost)
- [Mining Rig](/glossary/mining-rig)
- [Mining Profitability](/glossary/mining-profitability)