Whirlpool 280 litre vs 310 litre ???. Review on Whirlpool 310L Flexi Refrigerator

I had this thought and I was wondering if anyone did a real check onwhat does a Whirlpool refrigerator consume in reality ? the BEE labelshows that most models in the 280 to 310 litres consumes about 1- 2units of electricity I am told that the practical world isdifferent.

Wondering if anyone who has these models - Mastermind 30 (280litres) or the 310 litre Professional series has done an observation ofthis or has an approximate idea of how much these consume on a dailybasis, assuming normal use of perhaps 20 openings of the door and beingmoderately loaded..

I would love to go for 310 thinking if my requirements might increasein teh future however since Refrigerator is the only 24 X 7 deviates connected all the time (for an average indian family) I wanted tomake sure am not going to repent for the electricity bills :-)

Could someone tell me if Whirlpool has launched their 5 star rated refrigerators in India like Samsung did recently ?

Thanks

Alex