Stanford has its own cogen steam and chilled water (underground "ice cube") capabilities, in addition to power generation. Many such campuses use the industrial central plant model because it's cheaper and more efficient at scale. Residential areas could leverage this and other utilities (like internet) if people get out there, organize and develop compelling, sustainable operational (quasi-business) models that can compete with for-profit. Because it doesn't make sense to have an entire neighborhood with excess internet capacity and individual wifi boxes, having to have one "own" of everything is demonstrably wasteful compared to "sharing economy" alternatives. (Steam and chilled water as well, since temperature regulation is usually the number one energy consumer in a household without an EV.)