CONTROLLED ENERGY SYSTEM

An energy system substantially converts the power input into an AC power signal that is substantially synchronized with a power signal of the power grid. The energy system is further operable in alternative modes, including in an on-grid mode and off-grid mode. In the on-grid mode, the energy system provides the synchronized AC power signal to the power grid. In the off-grid mode, the energy delivers at least a portion of the AC power signal to a grid load.