Modular add-ons for the CalEarth Dome Homes

What should comprise the heating add-on?

What should comprise the lighting add-on?

What should comprise the power-harvesting add-on?

I envisage this would comprise renewable energy harvesting. So, solar means a PV system, with battery storage. Would this comprise a micro-grid for the entire village of dome homes vs. each home having its own entire PV system? Really the same with wind, and turbines if near to a river. If it's really rainy, even the rainwater harvesting could incorporate turbines?

What should comprise the water add-on?

Since there is unlikely to be a water grid, I would envisage the water add-on would comprise rain-water harvesting. This would include collection (i.e. from the roof of structures) -> filtering macro-particles -> micro-particles -> UV/chemical to remove bacteria/viruses/protozoa -> storage.

Q. Does each home need to process gray water? E.g. from washing dishes, showers.

Q. Does each home need to process wastewater from toilets? 

What should comprise the connectivity add-on?