elloi

If its too good to be true, then its probably not true.. Y4 w& i% m, k- q: L2 r
I also went to school in 钟灵 years ago. I definitely wish the school can benefit from this program.
7 `8 L8 b$ K- B. btvb now,tvbnow,bttvbBut, solar energy production typically has a very low efficiency, unless you add solar tracking system. If you add the solar tracking, then, the investment could easily double (may triple) the cost of the solar cells alone. Not to mention the old roofs in the school may not be able to take the extra weight of the cells plus the computerized tracking hardware..