Inverter AC versus fixed-speed AC running cost
Compare AC running-cost scenarios using each model’s own label values and operating conditions instead of a universal percentage claim.
Start with comparable models
Use the exact model input or annual consumption for ACs of the required cooling capacity. Do not compare only the words inverter and fixed speed.
Keep the room scenario the same
Use the same hours, days, electricity rate, room heat and thermostat scenario when comparing two models.
Treat cycling as a scenario
An inverter model can change compressor output while a fixed-speed model cycles differently, but the real difference depends on the selected models and room conditions.