Brilliant cogeneration idea for sustainable power to many types of public energy consuming grid systems such as public buildings, lighting systems, traffic control, etc. What’s more is the ability to retrofit decaying pipe systems in small steps keeps capital costs in check. Just think if a home scale version becomes available?

http://www.fastcoexist.com/3041300/portlands-new-pipes-harvest-power-from-drinking-water?partner=rss

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