SPARE ROOM SYSTEMS

FREE HOMELAB TOOL

What does your
tiny cloud cost?

Turn watts into pounds. Enter the average wall draw—not the power supply’s maximum rating—for the most useful estimate.

ESTIMATED RUNNING COST£21.46

£257.54 per year

1,051.2 kWh per year

How it works

Cost = watts ÷ 1,000 × hours × electricity price. This estimate excludes variable tariffs and power-supply efficiency changes. Measure at the wall for a week if you want a realistic average.

Useful next step: compare the annual cost of always-on hardware with scheduled shutdowns, consolidation or lower-idle-power replacements.