When solar power is generated and stored in batteries, the batteries will become fully charged when they reach their maximum capacity. When this happens, any excess solar power that is generated will typically not be stored in the batteries, and instead, it will be sent back to the electricity grid or wasted.
In the case of a grid-connected solar power system, excess solar power can be sent back to the grid for use by other consumers. This is called “net metering,” and it allows consumers to receive credit for the excess power they generate. The excess power is metered, and the consumer’s utility bill is adjusted accordingly.
In an off-grid solar power system, where the solar panels generate all the power needed by the user, excess power may be wasted if the batteries are full. This is why it is important to properly size the solar panel array and battery bank to ensure that there is enough capacity to meet the user’s energy needs, but not so much capacity that excess power is regularly wasted. Additionally, some off-grid systems may include diversion loads or other mechanisms to utilize excess power, such as diverting power to heating elements or water pumps.
What if my inverter is rated at 5kW?
If your inverter is rated at 5kW (kilowatts), that means it can handle a maximum continuous output power of 5kW. The size of your solar panel array and battery bank should be matched to the capacity of your inverter to ensure that your system operates efficiently and safely.
In general, the output power of your solar panel array should not exceed the maximum input power rating of your inverter. This is to prevent overloading and potential damage to your inverter. Additionally, the capacity of your battery bank should be sufficient to meet your energy needs while also allowing your inverter to operate within its rated power range.
If you have a 5kW inverter, it means that the maximum continuous output power from your inverter should not exceed 5kW. If your solar panel array produces more power than your inverter can handle, the excess power may not be utilized, and it may be wasted. In this case, you may need to consider upgrading your inverter to handle a higher power output, or reducing the size of your solar panel array to match the capacity of your inverter.
It’s important to consult with a qualified solar installer or electrician to properly size your solar power system and ensure that your inverter, solar panels, and battery bank are appropriately matched for optimal performance and safety.
So after I install the 5kw inverter and battery, will the power be limited within 5kW when the battery is full?
The power output of your solar power system will not be limited to 5kW just because you have installed a 5kW inverter and battery. The 5kW rating of the inverter refers to the maximum continuous power output that the inverter can handle at any given time. This means that the inverter can handle power inputs up to 5kW, but it does not limit the amount of power your solar panel array can generate or your battery bank can store.
When your battery is full, excess solar power that is generated by your solar panel array will not be stored in the battery bank. Instead, it will be fed into your home or exported to the grid (if you are connected to the grid) as long as there is a demand for it. This means that the output of your solar power system will not be limited to 5kW just because your battery is full.
However, it’s important to note that the maximum power output of your solar power system will be limited by the size of your solar panel array, as well as the capacity of your battery bank. If your solar panel array is not large enough to produce the amount of power you need, or if your battery bank is not large enough to store enough power to meet your energy needs, you may not be able to achieve your desired power output.
To ensure that your solar power system can meet your energy needs, it’s important to properly size your solar panel array and battery bank based on your power usage patterns and your energy goals. Working with a qualified solar installer or electrician can help ensure that your solar power system is properly sized and installed for optimal performance and efficiency.