hey, I’m researching what effect an eco friendly house would have on the environment, and i need some answers. Percentages would be great.

How many gasses ( or what percentage of gasses) would you save using

-solar power and opposed to conventional with micro hydro as a back up?
-Using energy saving light bulbs?
-using natural light during the day?
-using a fire and warm clothes instead of a gas heater?

And how much water would you save using
- a water tank?
-A water saving shower head?
-sensor basins?
-front load washing machine?
-grey water for dishes etc. ?

thanx soo much =D

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