Requirements for solar panels to be connected to the grid

4 FAQs about Requirements for solar panels to be connected to the grid

Should you connect solar panels to the electrical grid?

Connecting solar panels to the electrical grid is one of the most effective ways to maximize your solar investment while maintaining reliable power. Grid-tied solar systems allow you to use solar energy during the day, sell excess power back to the utility through net metering, and draw from the grid when needed.

How do I connect a grid-tied solar panel system?

Always refer to the NEC code in effect or consult a licensed electrician for safety and accuracy. There are two basic approaches to connecting a grid-tied solar panel system, as shown in the wiring diagrams below. The most common is a "LOAD SIDE" connection, made AFTER the main breaker.

Why should you connect your solar system to the grid?

By connecting your solar system to the grid, you can consume the energy you produce and feed excess power back into the grid. This results in a symbiotic relationship between your solar panels and the utility grid, enabling you to draw power when needed and receive credits for the surplus energy you generate.

How much does it cost to connect solar panels to the grid?

Connecting your solar panels to the grid isn't free—here's what you're looking at: Solar panels: $0.80–$1.20 per watt (e.g., $4,000–$6,000 for a 5kW system). Grid-tied inverter: $1,000–$2,500, depending on capacity and brand. Bi-directional meter: Often provided by the utility, but if not, $100–$300.