Eco houses

Insulation,

For some good Eco houses it is would be good to have polystyrene insulation,

Power,

For power i think it is best to have solar panels because it is not using any electricity from power stations which is good.

Aspect,

Lighting,

i think it is way better to have energy efficient light bulbs because it uses 80% less energy than normal light bulbs.

Hot water,

i think i would use solar panels to heat up the water because it is more efficient,

and here are some pictures of how they work:

This is called the "open loop.": This is called the "closed loop.":

Heating,

Underfloor,hydronic water heating because it wouldn't be using electricity and gas so it would prevent global warming.