"Homes served" should never be used in connection with wind or solar energy. The concept "homes served" probably can be defended, but only if the generating unit being described is a reliable or "dispatchable" unit (one that will produce electricity whenever needed) and the calculations of "homes served" are done honestly. Use of "homes served" is not defensible when referring to generating units that are available only intermittently, such as those powered by wind and solar energy, because the electricity can't be counted on when it is needed by customers. No "homes" are really served by intermittent wind or solar energy unless the people in those homes have expensive battery storage systems or they are willing to have electricity only when the wind blows or the sun shines.