I applied in-person. The process took 4 days. I interviewed at All Power Labs (Berkeley, CA) in Jun 2012
Interview
I came in and talked with the CEO and sales team; it was supposed to go for half an hour, but we had a great time and ended up talking for a couple of hours.
Interview questions [1]
Question 1
We talked about written and spoken communication, and about communicating technical topics pertaining to biomass gasification processes. For example, I had to explain the five processes of gasification to someone with minimal technical exposure.