“…Economic efficiency of the provider: The development of highly efficient gas-turbine generators, combined with relatively inexpensive sources of natural gas [15], has led to an end of the economies of scale that the utilities have relied upon for many decades [29]. Previously, it was prohibitively expensive for a private company to generate a moderate amount of electricity, when compared to the cost per kilowatt-hour of electricity produced in the gigantic power plants of the utilities.…”