5KW Hybrid Solar System

To explain the connection, operation modes, and capacity of each component for a 5kW hybrid solar system, let's break down the image:

Components and Their Capacities:

1. Solar Panels:

• Capacity: Assuming a total of 5kW peak power.

• Details: Typically, this would involve around 15-20 panels, each with a capacity of 250-350W, depending on the specific model and efficiency.

2. Solar Hybrid Inverter:

• Capacity: 5kW AC output.

• Function: Manages power flow between solar panels, batteries, grid, and loads. It can operate in grid-tied, off-grid, or hybrid mode.

3. Battery Storage:

• Capacity: Assuming a usable storage capacity of around 10-20kWh for a typical home setup.

• Details: This could be achieved with lithium-ion batteries, with each unit having a capacity of 2.5-5kWh.

4. Charge Controller:

• Capacity: Should be compatible with the solar array's output, typically integrated within the hybrid inverter for this setup.

5. AC Distribution:

• Capacity: Handles the AC output from the inverter to the home's electrical system, ensuring a stable 220V AC supply.

6. Grid Connection:

• Function: Allows the system to draw or feed power to/from the grid, depending on the mode of operation.

Operation Modes:

1. Grid-Tied Mode:

• Function: The system is connected to the grid. Excess solar power is fed back into the grid, and when solar production is low, power is drawn from the grid.

2. Off-Grid Mode:

• Function: The system operates independently of the grid. It relies solely on solar power and stored battery energy. If both are insufficient, non-essential loads might be shed.

3. Hybrid Mode:

• Function: This is the most common operation for a hybrid system. It automatically switches between grid-tied and off-grid based on power availability, maximizing solar and battery usage while still having grid support.

Connection Explanation:

- Solar Panels to Inverter: Solar panels are connected in series or parallel to achieve the desired voltage and current for the inverter.

- Inverter to Battery: The inverter manages charging and discharging of the batteries, ensuring they are charged from solar when available and discharged when necessary.

- Inverter to AC Loads: The inverter converts DC from solar panels or batteries to AC for home use, ensuring compatibility with standard home appliances.

- Grid Connection: This allows for selling excess power or buying when needed, managed by the inverter.

- AC Distribution: Ensures that the power from the inverter or grid is distributed correctly throughout the home.

This setup ensures that the system can provide a continuous power supply by optimizing the use of solar energy, battery storage, and grid electricity, making it highly efficient and reliable for a 5kW system.