http://citycyclingedinburgh.info/bbpress/ CityCyclingEdinburgh Forum » Topic: "one-day course - bike-powered generators  location: Ancoats, Manchester" en Tue, 14 Apr 2026 23:53:08 +0000 http://citycyclingedinburgh.info/bbpress/topic.php?id=2761#post-29407 Sat, 16 Apr 2011 19:54:30 +0000 steveo 29407@http://citycyclingedinburgh.info/bbpress/ <p>They're not a bad idea but people aren't really that powerful nor are they very efficient at converting chemical energy to mechanical and these generators are probably only 30% efficient on top of that. Better to convert a wheel into a wind turbine for most places in the world. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=2761#post-29403 Sat, 16 Apr 2011 10:50:04 +0000 chdot 29403@http://citycyclingedinburgh.info/bbpress/ <p>Next Sat</p> <p><a href="http://www.lowimpact.org/magrev_manchester.htm" rel="nofollow">http://www.lowimpact.org/magrev_manchester.htm</a> </p>