I'm a native Denverite who lived in the UK and Australia and traveled around the world before settling back in Denver. I have two PhDs, three kids, three dogs, and one husband. I work in downtown Denver and live close to downtown. I'm centrally located so I can get to most locations around town in a few minutes. I love having a green car!
We had our Volt for more than a year before we had to fill the tank. If you need a vehicle to drive around town, it's unlikely you'll need to add gas. It also goes around 400 miles on a tank of gas so, even driving a lot, you may not need to fill the tank. It's electric but not slow! It has a lot of zip and drives great on the highway! It takes a regular 110 plug to plug in and we provide the cable and an extension cord. I haven't noticed any increase in our electric bill for plugging the car in so it's a minimal draw to charge the car.
My husband and I are both locals and love to go out. If you need any recommendations for places to go in town, we're happy to share our experience. We also love camping and being outdoors. If you're interested, we can recommend great places to camp that you can get to easily and provide camping equipment for you to use while you're there.