On-grid solar system
Solar Solutions

On-Grid Solar System

A grid-tied solution that connects your solar power system directly to the utility grid — the most cost-effective way to start saving on electricity.

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On-grid solar system diagram
On Grid Solar System

An on-grid solar system, also known as grid-tied or grid-connected solar system, is a solar power system that is connected to the electrical grid. Here's how it works:

  • Solar Panels: typically mounted on the roof or in an open area with good sun exposure, collect sunlight and convert it into electricity through photovoltaic cells.
  • Inverter: the electricity generated by the solar panels is in direct current (DC) form. An inverter converts this DC electricity into alternating current (AC), the type used in most homes and businesses.
  • Grid Connection: the AC electricity produced by the solar panels is fed into the main electrical panel of the building, where it can power appliances, lights, and other devices.
  • Net Metering: any excess electricity generated that isn't immediately used is fed back into the grid. The utility company credits the owner for the electricity produced, effectively spinning their meter backward.
  • Grid Backup: during periods when the panels aren't generating enough electricity — at night or in cloudy weather — power is supplied from the grid as usual, ensuring a constant, reliable supply.
Weigh Your Options

Advantages & Disadvantages

Advantages of On-Grid Systems

  • Cost Savings: by generating their own electricity, homeowners and businesses can reduce their electricity bills.
  • Environmental Benefits: solar energy is clean and renewable, helping to reduce greenhouse gas emissions and dependence on fossil fuels.
  • Financial Incentives: many governments offer tax credits or rebates to encourage the installation of solar energy systems.
  • Grid Stability: by feeding excess electricity back into the grid, on-grid systems can contribute to the stability and reliability of the electrical grid.
  • Grid Backup: when panels aren't generating enough electricity, power is supplied from the grid as usual, ensuring a constant supply.

Disadvantages of On-Grid Systems

  • Dependency on Grid: if there's a grid outage, the solar system shuts off for safety reasons, meaning you won't have electricity even if the sun is shining.
  • No Backup Power: on-grid systems typically don't provide backup power during outages, unless you invest in additional solutions like a generator or battery storage.
  • Grid Connection Costs: connecting a solar system to the grid may involve upfront costs such as installation fees, metering equipment, and compliance with utility regulations.
  • Limited Control Over Pricing: you still rely on the utility for electricity during times when solar generation is insufficient, such as at night or on cloudy days.