OFF Grid Solar Plant
Off-grid connected solar is a solar electricity system with battery backup. During the day the sun shines and charges the batteries as well as supplies power to your home. During the evening or on rainy days when the sun isn’t shining you use the power stored in the batteries. Your house is not connected to the national grid hence the name: off-grid
Off grid solar system is a good source of electricity in certain remote areas where people do not have access to utility power grid.
Disadvantage: Batteries need to be replaced after every 4-5 years, Batteries are complicated, expensive and decreases sytem overall efficiency .