In a solar power generation system, battery storage serves as an indispensable component, playing a crucial role. When the grid fails, solar power panels can ensure continuous power supply for the home. This article will delve into how battery storage works in a hybrid inverter for solar system and how it collaborates with the solar system to provide your home with stable power supply.
When sunlight hits the solar power panels, light energy is converted into electrical energy. This current is stored through connected batteries, forming direct current (DC). Insolar power panels, there are two main coupling methods: AC coupling and DC coupling. DC coupling systems have built-in inverters to convert DC to alternating current (AC) for home appliances or stored in AC batteries. The inverter can also convert AC back to DC for storage when needed.
In contrast, batteries in DC coupling systems are not equipped with inverters. Therefore, the DC from the solar power panels enters the battery through a charge controller, while the inverter is only connected to the household electrical system. This means that the energy from the solar power panels or batteries must be converted from DC to AC before entering household appliances.
The hybrid inverter for solar system manages the energy flow from solar power panels to the household electrical system through a charge controller. This ensures that household appliances like refrigerators, TVs, and lights always have a stable power supply. Typically, the electricity generated by the solar power panels may exceed the actual needs of the household. For instance, on a hot summer afternoon, solar output might be high, but actual consumption might be relatively low. In such cases, the excess energy can be stored in batteries for use at night.
The charging rate of the battery depends on its capacity and the design of the charge controller. If the load on the household electrical system is low, the battery will charge faster. Conversely, if there are larger solar power panels connected, the system will acquire energy faster, charging the battery more quickly. Once the battery is fully charged, the charge controller will automatically stop charging to prevent overcharging.
Ensure Power Supply
Solar inverter batteries can provide backup power during grid outages, ensuring your household appliances continue running.
Optimize Energy Usage
In time-of-use electricity plans, electricity costs are generally higher in the evening. By storing excess solar energy during the day and using it during peak hours in the evening, overall electricity costs can be effectively reduced.
In conclusion, battery storage in a solar system hybrid inverter is key to achieving home energy self-sufficiency and stable supply. By thoroughly understanding its operating principles and advantages, we can better utilize solar resources to provide more reliable and environmentally friendly power supply for homes.