I'm making an energy efficient house for a science project, and all I can think of is the fact that the house works by taking energy from the sun.
- good insulation - heat recycling (controlled ventilation with waste air heat exchangers) - heat pump heating (ground, ground water, air) or pellet heating (renewable fuel) - low temperature heating (e.g. under floor heating - indispensable if you're goi
A super insulated home uses less energy to start with. Your home can have PV panels to general electricity. You can use a solar hot water heater. You can have energy efficient lighting and appliances.
All i can think of is having rain go into a giant container and filter down into the taps Not sure if that would be classed as energy efficient though
Make a rain barrel to reclaim rainwater for gardening. A graywater gadget permit you to recycle your bathe water. A composting rest room will relatively decrease decrease back on the water. in case you do not prefer to circulate that severe, use a flushless urinal.
