Didn't check where Tyndall Air Force Base is, but this came up in my Google Alerts,
http://www.waltonsun.com/news/tyndall-87737-newsherald-expo-first.html
http://www.waltonsun.com/news/tyndall-87737-newsherald-expo-first.html
Airmen crowded around to get a look at a red Tesla Motors electric vehicle in the center’s parking lot, while other expo visitors took turns riding a black Huffy electric bicycle. There were also solar panels and geothermal displays on display.