Abstract: A manually controlled coupling mechanism for onsite energy generation and storage systems includes a first contact portion having a first electrical contact for coupling to an utility grid and a second electrical contact for coupling to an on-grid AC terminal of an inverter, a second contact portion having a third electrical contact for coupling to an off-grid output terminal of the inverter, and a manually activated multi-position switch, wherein in a first position, only the first contact portion is activated to allow power transfer between the utility grid, the on-grid AC terminal of the inverter and a main electrical panel, and in the second position, only the second contact portion is activated to allow power transfer from the off-grid output terminal of the inverter to the main electrical panel.

Abstract: Embodiments disclose solar energy generation systems with automatic smart transfer switches. An energy generation system, including an energy generation device, an energy generation inverter coupled to the energy generation device and configured to convert direct current (DC) power from the energy generation device to alternating current (AC) power, a battery pack, a storage inverter coupled to the battery pack, where the storage inverter is configured to convert DC power from the battery pack to AC power and to convert AC power into DC power for storing energy into the battery pack, and a smart main electrical panel coupled to receive AC power from at least one of the energy generation inverter, the storage inverter, and a utility grid, where the smart main electrical panel includes one or more motorized circuit breakers configured to be remotely controlled to manage the power flow to one or more loads.

Abstract: An energy generation system includes an inverter power control system and a plurality of energy storage devices coupled to the inverter power control system. The inverter power control system includes an input configured to receive DC power; a DC/AC inverter stage configured to receive the DC power input; an anti-islanding relay coupled to the output of the DC/AC inverter stage; and a transition relay coupled to the anti-islanding relay, where the transition relay configured to route an output of the inverter power control system between one or more onsite back-up loads and an AC grid. Each energy storage device is configured to communicate with the inverter power control system.

Abstract: Embodiments disclose solar energy generation systems with automatic smart transfer switches. An energy generation system includes an array of PV modules, a PV inverter coupled to the array of PV modules, and a battery pack configured to store DC power from the PV modules and output the stored DC power. The energy generation system can further include a storage inverter/hybrid inverter PCS coupled to the battery pack, and an automatic smart transfer switch configured to select between an AC grid and the storage inverter/hybrid inverter PCS for outputting to a main electrical panel, where the automatic smart transfer switch is configured so that in a first position, the AC grid is coupled to the main electrical panel, and in a second position, both the storage inverter is coupled to the main electrical panel.

Abstract: A manually controlled coupling mechanism for onsite energy generation and storage systems includes a first contact portion having a first electrical contact for coupling to an utility grid and a second electrical contact for coupling to an on-grid AC terminal of an inverter, a second contact portion having a third electrical contact for coupling to an off-grid output terminal of the inverter, and a manually activated multi-position switch, wherein in a first position, only the first contact portion is activated to allow power transfer between the utility grid, the on-grid AC terminal of the inverter and a main electrical panel, and in the second position, only the second contact portion is activated to allow power transfer from the off-grid output terminal of the inverter to the main electrical panel.

Abstract: A string inverter for use with a photovoltaic array includes at least one string-level DC input channel for receiving DC power from the photovoltaic array, and at least one input-output channel for connecting the string inverter to a battery pack. The string inverter also includes a DC to AC inverter having an AC output, and a switch configured to control a flow of power through the string inverter. When the switch is in a first state, AC power can flow from the string inverter to a load side of a customer utility meter and one or more back-up loads, in a second state, power can flow from the load side of a customer utility meter to the one or more back-up loads bypassing the string inverter, and in a third state, all circuits coupled to the output of the string inverter are electrically disconnected from the string inverter.

Abstract: Embodiments disclose solar energy generation systems with automatic smart transfer switches. An energy generation system, including an energy generation device, an energy generation inverter coupled to the energy generation device and configured to convert direct current (DC) power from the energy generation device to alternating current (AC) power, a battery pack, a storage inverter coupled to the battery pack, where the storage inverter is configured to convert DC power from the battery pack to AC power and to convert AC power into DC power for storing energy into the battery pack, and a smart main electrical panel coupled to receive AC power from at least one of the energy generation inverter, the storage inverter, and a utility grid, where the smart main electrical panel includes one or more motorized circuit breakers configured to be remotely controlled to manage the power flow to one or more loads.

Abstract: Embodiments disclose solar energy generation systems with automatic smart transfer switches. An energy generation system includes an array of PV modules, a PV inverter coupled to the array of PV modules, and a battery pack configured to store DC power from the PV modules and output the stored DC power. The energy generation system can further include a storage inverter/hybrid inverter PCS coupled to the battery pack, and an automatic smart transfer switch configured to select between an AC grid and the storage inverter/hybrid inverter PCS for outputting to a main electrical panel, where the automatic smart transfer switch is configured so that in a first position, the AC grid is coupled to the main electrical panel, and in a second position, both the storage inverter is coupled to the main electrical panel.

Abstract: A string inverter for use with a photovoltaic array includes at least one string-level DC input channel for receiving DC power from the photovoltaic array, and at least one input-output channel for connecting the string inverter to a battery pack. The string inverter also includes a DC to AC inverter having an AC output, and a switch configured to control a flow of power through the string inverter. When the switch is in a first state, AC power can flow from the string inverter to a load side of a customer utility meter and one or more back-up loads, in a second state, power can flow from the load side of a customer utility meter to the one or more back-up loads bypassing the string inverter, and in a third state, all circuits coupled to the output of the string inverter are electrically disconnected from the string inverter.

Abstract: A string inverter for use with a photovoltaic array includes a string-level DC input channel for receiving DC power from a photovoltaic array. The input channel performs channel-level maximum power point tracking. An input-output channel connects the string inverter to a battery pack. A DC to DC buck-boost circuit between the at least one DC input channel and the at least one input-output channel prevents more than a predetermined amount of DC voltage from reaching the battery pack. A DC to AC inverter circuit having an AC output serving as an output of the string inverter. A revenue grade power meter is configured to measure the AC output of the string inverter.