Solar Rooftop Systems

In a solar rooftop system, the solar panels are installed on the roof of any residential, commercial, institutional, and industrial buildings, generated power will convert as ON Grid or OFF Grid.

In a grid-connected solar rooftop system, the power generated by solar plants is fed to the grid, i.e: ON Grid.

All solar PV systems generate power only during the daytime when the sun is available. In net-metered  systems, the generated power is utilized for self-consumption, and excess power is exported to the grid if the grid is available.

In case solar power is insufficient due to cloud cover etc., power is drawn from the  grid to power the loads. A bi-directional or net meter records the energy flow in both directions, and at the end of the monthly billing period, the net energy used is calculated. The beneficiary will pay only for  the net  energy  used from the Grid.

The advantages of a Grid-Connected Rooftop Solar System are :

1. Saving on electricity bills by the consumer.
2. Protect yourself against rising electricity rates in the future.
3. Utilization of available vacant roof space, no additional land required.
4. Return of Investment is very less around 4-5 years.
5. No additional requirement for transmission and distribution (T&D) lines.
6.Reduces T & D losses as power consumption and generation are at the same place.
7. Long-term energy and ecological security by the reduction in carbon emission.

1.  About a 10sqm area is required to set up a 1kWp grid-connected rooftop solar system.
2.  The actual area requirement may vary depending on the solar module’s efficiency, shadow free, etc.
3. The Rooftop solar systems can be erected on any roof with sufficient load-bearing capacity.
4. For better generation south shadow-free area is required.

On a clear sunny day, 1kWp of Solar Rooftop Plant generates 4 to 5 units of electricity on an average per day.

Solar power generation depends upon sunlight. On a cloudy day, the solar panels will produce less energy and no energy at night.

If your solar rooftop system is connected to the ON Grid, it will shut off during grid failure. This shutdown prevents the electricity utility repair people from being injured by your panels sending power back to the grid.

The size of your solar energy system depends on how much electricity you are utilising and the area availability to install the panels..

No. On exposure to sunlight and the outside environment, the solar module loses its generation capacity, which is called degradation. The average annual degradation is <  0.8%.