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Mini PCs & GPUs

What a mini PC, GPU or PC costs in electricity, what you need to run your own Bitcoin node, and what GPU mining still earns in 2026. With sources, without promises.

What does the electricity cost?

Work out what your PC, GPU, mini PC or miner costs per day, month and year at your country's electricity price.

Calculate electricity costs

Your own Bitcoin node on a mini PC

  • On 22 October 2026 the Bitcoin blockchain was 778 GB in size, having grown by 83 GB in a year. So choose a 2 TB SSD.
  • umbrelOS runs on most 64-bit mini PCs with at least a dual-core processor and 4 GB of memory; 8 GB or more is recommended.
  • Short on space? A pruned node also verifies every block, but keeps only the most recent ones.
  • A node earns nothing by itself. You run it for verification and privacy, not for income.
Full guide: a Bitcoin node on a mini PC

We run five nodes and three solo pools on a single mini PC with 32 GB of memory and 2 TB of storage.

See our node server

Prefer something ready-made? Umbrel sells the Umbrel Home, a mini PC with umbrelOS preinstalled.

View Umbrel

Making money with your GPU?

  • Renting out a GPU through Vast.ai, Salad or Clore.ai gives you no fixed income: none of these platforms guarantees that your card will be rented.
Work out what your GPU earnsMining calculatorNiceHash guide

Local AI on a mini PC or GPU

Which AI model fits on which mini PC or GPU, what you can use it for and what it costs in electricity.

Full guide: local AI on a mini PC or GPU

Home battery and surplus solar

Store the surplus from your solar panels or use it for mining: what a battery stores, what a miner uses and why mining on surplus solar earns little.

Home battery and mining on surplus solar

Mining at home

Compare home minersRent hashrate instead of buyingPut your miner's heat to use

Sources