Written Written Let do the math for 1.5 Ton system , for the sake of simplicity let assume 1.5Tr consumes 1.5Kw and 1TR consumes 1KW etc Calculation for 8hrs Operation of non inverter Ac The AC will cool your room within 20 min and then switch off for 20 min and then start again ( approximately )So for a 60 min cycle the unit may be on for approx 40-45  min , let's assume 45 minFor a 8hr operation total time the unit will be on is 6hrs (8×45/60=6hrs)Energy consumed for 6hrs is 9kw-hr For a Inverter AC To cool room=20 min that is unit will operate at 1.5TR After set point Rest 40 min unit will operate at 0.3TR to maintain the tempFor 8hrs Operation AC is on and operating at 1.5Tr for approx 3 hrs (8×20/60=2.6 ~3hrs)that is4.5kw-hrRest 5 hrs (8hrs -3hrs) the AC is operating at 0.3 TR to maintain the temp 0.3TR consumes 300W that gives1.5kw-hr energy consumption Total energy consumption for inverter AC for a 8hrs cycle is 6Kw-hrAssumptionsHeat load is constant in both casesFor the sake of calculation TR=Kw Yes there are different step down TR in inverter Ac, 0.3TR is most common one , if you find a AC that is operating at higher or lower TR during off cycle feel free to use itThis is

not precise calculation,  for precise calculation some more parameters are required. portable heat air conditioner unitThis calculation is just to provide a reference.portable air conditioner parts listWritten Written Written Considering a 1.5 tonn AC unit in below answer.air conditioner outdoor unit not runningA normal AC cost around 25-30k whereas inverter technology cost around 35k.A 1.5 tonn normal AC consumes approxly 1.2kwh of power and an inverter uses approxly 0.8-0.9kwhSay you run your AC for around 10hours a day, then normal AC will burn 12-13 units and inverter will burn around 8-9 units.Let's assume cost of per unit to be 5rs, then you save 15rs per day and 450rs in a month by inverter AC.AC usually used for 4-5 months I.e 450*5=2250rs approx.

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