I need a stabilizer (servo motor controlled) for a fridge 300W 220V as there is a large variation in utility supply. The company which provides such stabilizer suggested install 2KVA stabilizer for 300W fridge while for me 1KVA should be enough. What do you suggest? Normally compressor accelerates to full speed within a second. So 2KVA stabilizer is nonsense i.e. just want to sell there item. The voltage variation of incoming utility supply is within the range of stabilizer design.