I've picked up a couple of things on the pros, cons, tricks, and tips on the renewable energy kits by searching around. However, it's been hard work and I still don't have a lot to work with. if you have messed with these kits, can you post thoughts here:
1) How much energy did these kits deliver?
2) comparisons to battery when you use them w other sets
3) building techniques for using them with kids
4) techniques for incorporating them into existing models that are designed by LEGO
Thanks in advance for you thoughts!!
-Nick
Sample video that touches on power output and interesting ways to incorporate into a model
Some details about charging the battery - can't power it up the first time using solar/wind