An on-grid solar system, also known as a grid-tied solar system, is a configuration where photovoltaic (PV) panels are connected directly to the utility grid.
Here’s how it works:
- Solar Panel Installation:
- In an on-grid system, PV panels (which can be either rooftop or ground-mounted) generate electricity during the day using sunlight.
- Before installing the system, it’s essential to determine the appropriate array size to meet your home’s energy needs.
- Inverter Connection:
- During installation, the PV modules are connected to an inverter. Various types of solar inverters exist, but their primary function is to convert the direct current (DC) electricity generated by the panels into the alternating current (AC) needed to power most household appliances.
- When your energy demand exceeds what the panels can supply (such as at night or on cloudy days), the utility grid provides electricity to your home.
- Net Metering:
- In regions with net metering, excess electricity produced by your solar array (which you don’t consume) is sent back to the grid as AC.
- Homeowners receive a bill credit for this surplus energy. The specifics of whether you receive retail or wholesale rates for net metering vary by location.
- Later, when your solar panels aren’t generating enough energy (e.g., at night), you “redeem” these credits by using grid electricity.
- Benefits of On-Grid Systems:
- Cost-Efficiency: No need for expensive battery storage since the grid acts as your “virtual battery.”
- Simplicity: Fuss-free installation and easy maintenance.
- Environmental Impact: Reduces reliance on fossil fuels and contributes to cleaner energy production.
Remember, an on-grid solar system allows you to harness solar energy while remaining connected to the utility grid, providing flexibility and cost savings. 🌞🔌