SM Ling wrote: >> Unfortunately we do not have big roofs here. In bigger cities like >> Singapore (or Shanghai, Beijing, Hong Kong, etc), majority of >> the people live in high-rise buildings. So even if you put Solar >> panels all over the roofs, it probably is not good enough. ;-) > > Staying in a high-rise apartment as you do, I just ordered a solar > panel off ebay to try to get rid of my "not switching off" sin. I > figure the main "conversion" efficiency of my solar charging station > shall be in cutting the "not switching off" waste. In SGP, the cost > of this waste is very expensive, 2nd in the world after London (2005 > data). Not sure I understand this right.. does the Singapore gov'ment monitor your electricity usage, and penalize you for not switching stuff off after a certain time? Or are you talking about the cost of the extra kW-hrs? If so, would you mind sharing what the rate is? Vitaliy -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist