Solar Power Q & A

ONGRID Solar Energy System Limitations


The main difference between on-grid and off-grid solar systems is that on-grid (a.k.a. grid-tied) solar systems are connected to the main utility power lines. Day time the Solar Panels Produce Energy and send them to the grid. At night the GRID Acts as a battery to power the house or office.

OFF-GRID systems are not connected to the main utility power lines. An OFF-GRID system may require batteries and, sometimes, a backup generator. This way the OFF-GRID System is isolated from the main utility power and is independent.

In Sri Lanka – You also need to get the Authorization from Your Electricity Provider to be able to install an ON-GRID Solar Power Generation system. After you obtain the Approval to install the solar power generation system – You must Get the solar power generation system installed by a company who has a certificate from the Sri Lanka Sustainable Energy authority.

Advantages of ON-GRID solar power systems:

  • You can save money on your electricity bills by using solar power instead of buying electricity from the grid.
  • You can sell excess electricity back to the grid, which can help you earn money.
  • You don’t need to worry about power outages because you can still use electricity from the grid when your solar panels aren’t producing enough power.

Disadvantages of ON-GRID solar power systems:

  • You are still dependent on the grid for electricity, which means you may not be able to use your solar panels during power outages.
  • You may need to pay for a new meter to measure the electricity you generate and sell back to the grid.
  • You may need to pay for a new inverter to convert the electricity from your solar panels into the type of electricity that can be used in your home.

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