How much electricity does running a node and miner use?

Running a Monero node usually uses much less electricity than mining, especially if you add it to a computer that is already switched on. Your miner is usually the main power user because it keeps your processor busy. To find your actual cost, measure the whole setup at the wall rather than relying on the processor’s advertised power rating.

Where the electricity goes

A node runs Monero software that checks transactions and blocks and shares them with other computers. A miner uses your CPU, or processor, to try to earn mining rewards.

Their power needs are different:

• Node: Uses the processor, storage drive, and internet connection. Power use is generally higher during the first download and check of the blockchain, Monero’s transaction history.
• Miner: Keeps the processor working continuously. Monero’s mining method, RandomX, also uses memory, so processor power alone does not tell the whole story.
• P2Pool: Runs extra software that coordinates shared mining without a central pool operator. It adds some work alongside your node and miner, but mining will usually dominate electricity use.

Solo mining and P2Pool mining do not inherently require different amounts of mining electricity. With the same hardware and settings, consumption should be broadly similar. The reward arrangement changes more than the power demand.

What power use might look like

These are rough examples, not predictions for your equipment:

• A small, efficient computer running only a synced node might draw around 5–25 watts at the wall.
• A desktop running only a node might draw 30–100 watts or more, largely because of the computer’s baseline power use.
• A desktop actively CPU mining might draw 100–300 watts or more for the whole system.

Hardware, mining settings, storage, and cooling can move your results outside those ranges.

A node added to an already-running computer may use only a little extra power. But if you keep that computer on overnight just for the node, you need to count its entire overnight consumption.

Running your node, P2Pool, and miner on one computer avoids powering a separate machine. If you use separate computers, measure both.

Measure your daily cost

Use a plug-in electricity meter rated for your equipment. It measures power drawn from the socket, including losses inside the computer’s power supply.

For a useful comparison:

1. Measure the computer with mining stopped.
2. Measure it with the synced node running.
3. Start mining and let temperatures and power use settle.
4. Record energy use over several hours, ideally a full day.

Electricity is billed in kilowatt-hours, or kWh: the energy used by 1,000 watts running for one hour.

Daily energy = watts ÷ 1,000 × hours running

For example, a setup averaging 150 watts for 24 hours uses 3.6 kWh per day. At an example electricity rate of $0.20 per kWh, that costs $0.72 per day, or $21.60 over 30 days. Substitute your own measured power and electricity rate.

Reduce waste, not just speed

Try fewer mining threads—separate CPU work tasks—or a lower processor power limit. Compare power savings with the change in hashrate, your mining speed. Maximum speed is not always the most efficient setting.

Mining also produces heat. Fans count toward consumption, and air conditioning can add costs beyond what your computer’s meter records. Browser mining is not automatically low-power; measure it too.

The bottom line

Budget for the whole setup’s measured electricity use, including any separate node computer. Neither solo mining nor P2Pool guarantees that rewards will cover that bill.