Solar water heater
Solar cooker(s)
Solar power by photovoltaic cells

12 volt LEDs, and appliances

Wind-power generator
Wind-powered pump(s)

Roof runoff water capture system
Gravity-fed water system

Lots of big batteries with inverters (and other things I don't quite understand).

Switches between you and the grid: sell only when you want, divert to your batteries when you do not.

Buried mass heat exchanger for HVAC

Why not add an electric vehicle and a sailboat?