Power, Heat & Water: Solar panels track the sun, batteries store power, 120 volts AC is created thru a Zantrac inverter. A 4000 watt Lister Peter diesel generator can be remotely activated from house. Solar system panels track the sun to power the 24 deep cycle batteries. Propane serves fridge, stove, water heaters dryer. Well water is lifted by a 48 volt DC pump to a 3800 gal tank 80 ft above the house level. It is all automatic . There is a 3" pipe fire hydrant on driveway in emergency.