just 2 days left!
Michael Judd says that if permies.com brings in $5000 to his kickstarter, then permies.com can decorate an entire page in his new book! I'm not sure what we would put there just yet, but the opportunities for comedy are endless!
My father-in-law works in an anodized aluminum factory and can make custom parts. Would a anodized aluminum be good in microhydro systems? Any thoughts on disadvantages/advantages to using anodized aluminum vs. plastic or steel turbines? Any suggestions on the design or specs for an anodized aluminum hydro turbine?