i also need same answer
as per my finding, if utilization is more than 14-16 hours then inverter saves alot of money and if usage is below 9 hours then there is not much significant difference in electricity bill. may be 2K only per month
Summer season remains from May-Oct 6 Month, so 6X2=12k saving a season. but if consumption is high the savings shall increase to 5-6k per month. which is good.
another plus point is DC invertor can operate in less voltage. which usually happens in summer as all people switch on their ACs and there is a variation of voltage almost in every house. so invertors still works well in it.
also as per my findings. conventional AC starts at 10-11Amp and after certain period of time it reaches 8AMP. whereas DC inverter starts at 5AMP and after 20-30Min shifts to 2AMP.
cons of DC invertors are:
complex circuitry, Gas refilling is expensive, latest tech so less support available.