Patent ID: 8373303

Claim:
An electrical power supply arrangement comprising: a solar power device configured to convert sunlight into DC electrical power; at least one adjustable DC load configured to run on the DC current electrical power; an electrical output sensing device configured to sense a level of electrical output of the solar power device; and a controller coupled to each of the at least one adjustable DC load and the electrical output sensing device, the controller being configured to: receive a signal from the electrical output sensing device; adjust the at least one adjustable DC load such that the at least one adjustable DC load consumes a maximum amount of the electrical output of the solar power device, the adjusting of the at least one adjustable DC load being dependent upon the received signal; and if the at least one adjustable DC load cannot consume all of the electrical output of the solar power device, then cause a remaining portion of the electrical output of the solar power device to be converted into AC electrical power.