Microgrid Controller operates autonomously with Tesla energy storage systems to support various types of microgrids. When actively running, Microgrid Controller enables clean, renewable energy consumption without compromising grid stability. When backup assets are needed, or additional spinning reserve is required, Microgrid Controller activates generators that operate at the greatest available efficiency to reduce fossil fuel consumption, and then stops generators once they are no longer needed.
For off-grid microgrids, Microgrid Controller coordinates the battery energy storage system, solar and other generation assets. In this configuration, a backup grid connection is not available — to ensure that energy demand matches production, Microgrid Controller operates all storage and generation assets in parallel as needed.
Grid-tied microgrids operate all storage and generation assets in parallel as needed, similar to off-grid microgrids. Grid-tied microgrids may include backup-only microgrids, which use a battery energy storage system to power loads, but do not use any other generation assets, such as solar — in this case, Microgrid Controller is not required. When a grid connection is available, the battery energy storage system and solar assets work together. For both grid-tied microgrids and backup-only microgrids, where a utility grid connection is available, the Tesla Site Controller communicates with a dedicated Islanding Controller to switch between on-grid and off-grid modes of operation.