A method comprising: receiving, by an apparatus or system, a first set of values for an electric grid, a second set of values for a first electricity supply, and a third set of values for a second electricity supply; receiving, by the apparatus or system, ...

A method comprising: computing, by an apparatus or system, availability of at least one renewable electrical energy production device that delivers electricity to at least one household associated therewith to deliver electricity to an electric grid; compu...