Low voltage solar electric energy distribution

A device comprising:

• at least one input port to receive low-voltage green-energy power which includes power generated by at least one solar panel;
• at least one input port to receive low-voltage grid power converted from high-voltage utility electrical power;
• at least one port to connect to one or more batteries;
• at least one power output port through which to:
• provide, via power lines, at least a portion of said low-voltage green-energy power, said low-voltage grid power, or electrical power from said batteries to low-voltage electrical loads;
• and
• receive, via said power lines, an electronic signal representative of a state of operation of said low-voltage electrical loads;
• a bus to:
• receive at least a portion of said low-voltage green-energy power, said low-voltage grid power, or said electrical power from said batteries;
• and
• provide said at least a portion of said low-voltage green-energy power, said low-voltage grid power, or said electrical power from said batteries to said power output port;
• detection electronics to detect or measure a voltage of said bus;
• comparison electronics to compare said voltage with a maximum power point of said at least one solar panel;
• and
• a controller to operate one or more switches that are electrically between said bus and said low-voltage electrical loads in response to a result of comparing by said comparison electronics.