The cost of the inverter depends on its brand, its features, and as well as its technical specifications. The inverters that are more efficient which means there is less energy loss in the conversion from DC to AC, they will naturally be more expensive. The inverters with higher VA rating will be more costly as they can handle heavy appliances like microwave, refrigerator, computer and likewise. In general, for domestic usage, the cost of the inverters will vary from 5000 to 6000 with standard features. With smart and advanced features, the price can go up to around 8000.