Energy storage grid interactive inverter with variable autonomous mode

An energy storage inverter coupled to an electric grid, the energy storage inverter comprising:

• a processor in communication with the energy storage inverter;
• a grid interactive inverter coupled to the electric grid;
• a plurality of battery packs coupled to the grid interactive inverter;
• a first plurality of switches ECM1 and ECM2 between the grid interactive inverter and the electric grid;
• a second plurality of switches K10 and K11 between the grid interactive inverter and one or more auxiliary loads,
• wherein the one or more auxiliary loads are coupled to and decoupled from the grid interactive inverter using one or more of ECM1, ECM2, K10 and K11;
• and
• wherein the energy storage inverter including the grid interactive inverter and the plurality of battery packs provides reliable power to the one or more auxiliary loads utilizing the plurality of battery packs, wherein the energy storage inverter operates in three modes;
• and
• an energy storage inverter control module in communication with the processor that selectively operates the energy storage inverter in the three modes responsive to sensed conditions of the electric grid, wherein the three modes comprise:
• a first autonomous mode where all power for the one or more auxiliary loads is provided by the plurality of battery packs by opening ECM1, ECM2 and K11 coupling the grid interactive inverter to the electric grid and closing K10;
• a second variable autonomous mode where the grid interactive inverter draws power from the electric grid and from the plurality of battery packs and wherein the one or more auxiliary loads are provided power and isolated from operations at the electric grid using the first and second switches to provide a path from the grid interactive inverter to the one or more auxiliary loads and wherein ECM1 and K11 are open and ECM2 and K10 are closed;
• and
• a third test mode where the one or more auxiliary loads only draw power from the electric grid to test functionality of the auxiliary loads using the first and second switches to provide a path from the electric grid to the one or more auxiliary loads, wherein ECM1 and K10 are open and ECM2 and K11 are closed.