What is a grid-connected inverter?

Grid-connected inverters play a pivotal role in decentralized energy generation. They are the key element for integrating renewable energy into our power grids.

What are the grid connection regulations for photovoltaic inverters?

In Germany, key grid connection regulations include VDE AR N 4105, VDE 0124-100, VDE AR N 4110, FGW TR3, and VDE 0126-1-1, while Austria follows OVE R 25. IEC 62116 is an international standard for grid-connected photovoltaic inverters, specifying test procedures to prevent unintentional islanding.

Do inverters need to be connected to public power grids?

A prerequisite for connection to public power grids is the verification and confirmation that these inverters meet the required standards, norms, and specifications.

What are the technical characteristics of a grid-tied inverter?

The technical characteristics of the grid-tied inverter must meet defined requirements, including factors such as power factor, efficiency, voltage and frequency regulation, and response to grid fluctuations. Compliance with national and international grid connection regulations is essential.

What is the validation process for a grid-tied inverter?

The validation process includes tests for the stability and reliability of the grid-tied inverter under various operating conditions. Long-term tests are also conducted to ensure sustained performance over time.