Solar systems are used to convert solar energy into electrical energy via photovoltaic cells. A solar system consists of a few basic components and additional components depending on the requirements.
Off-grid solar systems require batteries to store energy, are not connected to the local grid and are self-sufficient. On-grid solar systems are connected to the electricity grid and therefore do not need batteries. When needed, it can get power from the grid or direct the excess energy to the grid. This is the main difference between off-grid and on-grid solar power system.
Off-grid solar energy systems are dependent on the sun and the energy stored in the batteries. In such systems, it is possible to use energy while the sun is shining and solar panels are generating electricity. In addition, the electrical energy produced by solar panels can be stored in batteries, which can be used even when the sun is not present.
In an off-grid system, there is no access to extra electricity when needed. If such systems do not have a battery or anything else to store energy, there will be less electrical energy in cloudy weather and no electricity at night.
On-grid solar power systems are connected to the local electricity grid but not completely dependent or completely independent. In such systems, electricity may be drawn from the grid when insufficient power is produced. Similarly, the excess power produced can be sent to the grid.
In an on-grid system, a battery or generator is not needed to meet the electricity requirement when the solar panels do not produce enough energy. This is why it is the most common solar power system for residential and commercial needs.
In the solar energy system, there may be times when more electricity is produced than is needed depending on the size of the system, usage and weather conditions. In off-grid systems, there are batteries connected to the system and provide storage of excess electricity. The stored electrical energy is used to provide uninterrupted electricity at night and when the system is not producing enough electricity. In on-grid systems, the excess electricity produced is measured over an electricity meter and transmitted to the grid. It is possible to earn an income in this way.
A power outage in the grid will not affect the off-grid system, which operates completely independently of the grid. On-grid system, on the other hand, is connected to the grid and in case of power failure in the grid, access to electricity will not be possible.
Off-grid and on-grid systems have their pros and cons. No system is better than the other. In certain situations an off-grid system may be best, while in other situations an off-grid system may be the better option. It all depends on the type of application, location and energy use.
