On non-Inverter ACs, I only need to use the power input (e.g. 800W) to calculate my energy cost for a 12-hour usage. (800*12/1000 = 9.6kW-hr)

On Inverter ACs though, I know they don’t operate at 100% all the time, and most of the time the only information I get is their cooling capacity (e.g. 1hp ≈ 746W) and their EER (e.g. 12.2 kJ/hW).

How do I use these to get a rough estimate of the energy cost?

  • amigan@lemmy.dynatron.me
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    6 months ago

    I’d say it’s pretty damn difficult for both. The VFD speed is dependent on the gradient, just like the duty cycle of a conventional AC is.