An apparatus for synchronizing operation of one or more appliances to an amount of energy produced by a local power generator comprises a controller for reducing the power consumed by the one or more appliances in relation to an amount of power being generated by the local power generator. In one embodiment, the operation of the appliance(s) is controlled by the controller so that the system of appliance(s) and the local power generator does not consume any external energy (e.g., from a commercial power grid), despite variations in the amount of power delivered by the local power generator.