The Midwest Renewable Energy Association's energy fair is coming up soon, and they are planning a "car show" area again. I think they should have good exhibits and workshops, and it might be fun to plan some kind of get-together there, on Friday or Saturday. I am volunteering during the fair, so I am not sure of exactly when I will be free, but of course you can do this without me, too. http://the-mrea.org/energy_fair.php
Complete lists of workshops are on-line, http://www.the-mrea.org/download/EF08workshops.pdf
We had a good time at the Energy Fair. Exhibitors had a Zenn electric, Miles electric, Columbia electric (all 3 are NEVs), a Honda natural gas Civic, lots of diesels, biodiesel, and veggie oil, ethanol, and hybrids, including plug in Prius conversions. Electric bikes, home built and factory models, electric motorcycles, a reallly nice tadpole 3 wheel bike with a hub motoer and DeWalt lithium batteries, and Ryland's green ComutaCar that he has talked about here.
Lots of wind and solar stuff, too, of course, and the local brewery's tent was keeping our thirst quenched in the afternoons.