What is Solar Rooftop - Solar Rooftop?

Independent rooftop solar power systems are commonly used in places where there is no national grid electricity, there is electricity but it is not stable or there is a grid but want to have an electricity system for private use…

The advantage of independent rooftop solar power is that it is self-sufficient in power, independent of the national grid, and can be installed anywhere.

The disadvantage of this system is the cost of investing in a large DC storage system to be able to meet the demand for electricity. Replacing a new storage battery will create a source of toxic waste for the environment.

The direct grid-connected rooftop solar power system is very popular today, suitable for loads that consume a lot of electricity during the day such as factories, factories, schools, hospitals, households...

The advantages of grid-connected rooftop solar power system are simple structure, easy installation, low investment and maintenance costs, and high durability. Reduce the burden on the national grid during daytime, peak hours and in the hot season. Profit from selling surplus electricity to the national grid.

The disadvantage of this system is that there is no electricity to use when the grid is out, the generated electricity can only be used during the day, the counting board still has to use the electricity of the national grid.

This system is a combination of the two models mentioned above, suitable for places where electricity must always be available such as hospitals, amusement parks, etc. The amount of electricity after being collected from the solar panels will be charged to the battery, when the battery is charged. full of residual electricity will convert from DC to AC and then be transferred to the load for use. If the amount of electricity transferred to the load is not used up, it will be transferred to the national grid.

The advantage of a hybrid solar power system is that it combines the advantages of both independent rooftop solar systems and direct grid connection.
The disadvantage of this system is the huge investment and maintenance costs.