What is the difference between a string solar inverter and a hybrid inverter?

The difference between a string solar inverter and a hybrid inverter lies primarily in their functionality and the type of solar power systems they are designed to work with:

1. String Solar Inverter:

  - A string solar inverter is designed for use in grid-tied solar power systems.

  - It is typically connected to multiple solar panels arranged in series, forming a "string" of panels.

  - The inverter converts the DC (direct current) electricity generated by the solar panels into AC (alternating current) electricity suitable for use in homes or businesses.

  - String inverters do not have the capability to store excess energy in batteries or operate independently of the grid. They rely on a stable grid connection to function.

2. Hybrid Inverter:

  - A hybrid inverter, also known as a multi-mode inverter, is designed for use in hybrid solar power systems that incorporate energy storage (batteries).

  - In addition to converting DC electricity from solar panels to AC electricity, hybrid inverters have the ability to manage energy flows between solar panels, batteries, and the grid.

  - Hybrid inverters can operate in grid-tied mode, where they export excess solar energy to the grid and import electricity from the grid when needed. They can also operate in off-grid mode, where they provide backup power during grid outages using energy stored in batteries.

  - These inverters often have advanced features such as bidirectional power flow, allowing them to optimize self-consumption of solar energy, store excess energy for later use, and provide backup power when grid electricity is unavailable.

  - Hybrid inverters are more versatile than string inverters, as they offer greater control over energy management and can provide greater energy independence by reducing reliance on the grid.

In summary, while both string solar inverters and hybrid inverters are used in solar power systems, their differences lie in their functionality and compatibility with different system configurations. String inverters are suitable for grid-tied systems without battery storage, while hybrid inverters are designed for hybrid systems that incorporate energy storage for increased self-consumption and backup power capability.