Lost points in Hot Water and Net Metering. While they did have running hot water that was up to temp (110 I think) they were unable to fill 15 gallons in 10 minutes or less. The Net Metering measures their energy consumption for the duration of the competition. If they produce more energy than they consume they get bonus points. Not sure the exact cause for using more power than what was generated though. Would love to know why as well. Even if they had broke even in the Net Metering and gained just a few points, they would have finished a bit higher in the standings.
People's Choice and Market Viability awards are pretty big though. That says people like your design and would do well on the open market, which is ultimately what this competition strives to accomplish.