How Solar PV Systems Work?

The Solar electricity is produced when the photons from the sun rays hit the electrons in the Solar PV panels- this will generate Direct Current (DC). The DC electricity from the panels passes through DC distribution network to a grid-interactive inverter, which converts the DC electricity into AC electricity

Based on available roof area solar PV panels will be installed on the roof of the building. The output of the panels (DC electricity) connect to the power conditioning unit (Inverter) which converts DC to AC. The inverter output will be connected to the control panel or distribution board of the building to utilise the power. The inverter synchronises with grid and also with any backup power source to produce smooth power to power the loads with preference of consuming solar power first. If the solar power is more than the load requirement, the excess power is automatically fed to the grid. For larger capacity systems connection through step up transformer and switch yard may be required to feed the power to grid.


The grid connected roof top solar PV system would fulfil the partial / full power needs of large scale buildings. The following are some of the benefits of roof top SPV systems: Generation of environmentally clean energy.• Consumer becomes generator for his own electricity requirements.• Reduction in electricity consumption from the grid.• Reduction in diesel consumption wherever DG backup is provided.• Feeding excess power to the grid.

Following are of the main equipment & components for Grid-tie Rooftop solar system

  • Solar PV Modules
  • Module mounting Structures
  • Junction boxes, Ac & Dc
  • Grid Connected Inverters (PCU)
  • Cable & Connectors
  • Underground Earthing Kit
  • Metering Unit
  • Lightning Protection

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Office:Darshan Bunglow,
Opp. Hotel Regal Plaza,
Bansilal Nagar,
Aurangabad – 431 006.
M No:+91 9822251808