Hybrid inverters

A hybrid inverter is basically the “heart” of a solar panel array, where the inverter converts the generated energy into usable power and exchanges it with connected batteries and the power grid.

Any solar installer will tell you that power storage is booming due to rising energy prices. Connecting a battery system with a hybrid inverter is becoming an increasingly attractive option for self-sufficient power generation and use.

What is a hybrid inverter?

A hybrid inverter is an intelligent inverter that enables the storage of excess solar energy in a solar battery. Hybrid inverters function like a regular grid-connected inverter for solar panels, but can operate in different configurations.

Hybrid inverters can operate in a battery backup mode, storing unused power in the battery. This power can be used at a later time when the solar panels are not generating power, or in the event of a power outage.

Most hybrid inverters can also operate without a connected battery system and then function the same as a regular grid-connected inverter, delivering excess solar power to the grid.

Why a hybrid inverter?

A hybrid inverter is an all-in-one plug-and-play inverter that is ready for different configurations. A solar panel system with a conventional inverter requires a separate inverter to convert AC to DC, back and forth. A system with a hybrid inverter does not require a separate battery inverter. Especially if you want to be ready for the future or add batteries later, a hybrid inverter is the best choice.

This type of inverter is already prepared for different configurations and thus ready for any expansions. However, they also have limitations and are generally not recommended for off-grid solar power systems. In that case, a specific off-grid inverter is the best choice.

Types of hybrid inverters

1. Basic hybrid inverters

Basic hybrid inverters ensure that excess solar energy generated is fed back to the grid and power is withdrawn from the grid when needed.

However, a basic hybrid inverter also allows you to connect a battery system. Therefore, this simple hybrid inverter is a good choice only if the power grid is stable.

2. Setup of hybrid inverter with battery storage

A hybrid inverter features multiple modes, making it an advanced energy storage solution. A hybrid inverter can power a household, charge connected batteries and feed excess power back to the grid. In the event of a power failure, the unit switches to battery power and operates independently of the grid.

3. All-in-one hybrid energy storage system

Modern hybrid inverters often come with a battery system to form a complete system. Such an integrated system is also called a Battery Energy Storage System (BESS). A fully integrated system of a hybrid inverter with battery storage can be connected to any existing solar system.

4. Off-grid systems

Off-grid inverters are much more advanced and powerful than regular hybrid inverters. They can operate with or without a grid connection and there is an immediate backup in the event of a power failure. These inverters are powerful enough to power even equipment with very large peak loads, such as air conditioners, pumps and heating equipment.

Off-grid systems are able to operate fully independent of the grid. In this case, the hybrid inverter is the link between the solar panel setup and the battery system, and no exchange with an external network takes place. The disadvantage of such a system is that there is complete dependence on the energy available and stored at the time.

Which hybrid inverter?

When choosing a hybrid inverter, it is important to consider what the situation is. Is there an existing solar panel setup? Do you want to add solar batteries? Do you want to be fully independent of the grid? How much electricity do you use on a daily basis and at what times? What is the budget?

Purchasing hybrid inverters from ESTG

ESTG is a wholesaler of solar panels and other sustainable electrotechnical products, such as solar inverters, EV chargers, solar batteries and thermal heating. With a wide range of A-brands, ESTG supplies installers across Europe. See all SMA inverters.