Quick Answer
A hybrid solar system requires a solar panel array, an inverter charger, a battery bank, a critical loads panel, a grid tie inverter, and a monitor or controller.
Hybrid Solar System Components
In a hybrid solar system, the critical loads panel (CLP) is responsible for managing power distribution to essential appliances during grid outages. The CLP typically includes a circuit breaker or disconnect, and it’s usually sized based on the total ampacity of the critical loads. For example, a 20-amp CLP can support a 2-kilowatt critical load panel.
Inverter Charger and Battery Bank
The inverter charger is a crucial component that converts DC power from the solar panel array and battery bank into AC power, while also charging the battery bank from the grid. It’s essential to select an inverter charger that matches the system’s voltage, frequency, and power requirements. For a 12-volt system with a 3-kilowatt critical load, a 3,000-watt inverter charger with a 2,000-watt continuous rating would be a good choice. The battery bank should be sized to provide 2-5 days of backup power, depending on the system’s load profile and usage patterns.
Grid Tie Inverter and Monitoring
The grid tie inverter allows the system to export excess energy back to the grid during periods of high production. It’s essential to ensure that the system complies with local grid tie regulations and net metering requirements. A monitoring system, such as a web-based monitoring platform, can provide real-time data on system performance, including energy production, consumption, and storage. This information can help optimize system performance and identify potential issues before they become major problems.
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