« 毛毛蟲 | Main | 2008 復活節卡片 »

March 16, 2008

Comments

Fred

I think it meant "saving engergy derived from fossile fuel". If you use solar water heater and skylight that does reduce your eletricity or gas consumption. In the mean time you really did not create additional energy but just reuse them more efficiently in the building. Green building is very hot these day!

The comments to this entry are closed.

My Photo

October 2021

Sun Mon Tue Wed Thu Fri Sat
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            
Blog powered by Typepad
Member since 10/2004