suppose the developer requires that for marketing reasons (i.e., to make the development appear as green as possible to prospective residents by having the maximum number of solar panels) the entire pv capacity must be built out. the combined chp and pv facility, therefore, has the potential to generate more electricity than can be used by the combination of the plant and the residences, and then sell the excess back to the grid at a wholesale rate of $0.08/kwh. what is the installed capacity that provides the most revenue, and what is the net annual cash flow associated with meeting electricity demand and possibly selling to the grid? explain your approach and show calculations