IHD simulation - P006

P006

Intro

• Understand that the survey was to see on what users would want from their IHD feedback

Q253 Rank

• Understood everything was used for the same amount of time
  • But had to reminded that everything ran for 10 minutes after told to think outloud
• Assumed that things that generated heat to be more energy intensive
• Says he doesn't know much about the ranking or how much things use in general

Q319/827 Cost/Use

• Didn't know that the cost question was asking about cost to the utility
• Had a good sense of when electricity was used most during the day
  • Understood when that people slept between 2 am and 8 am so usage would be less
  • People are driving to work and everything is starting in the morning so not much is used then

Q257 Cost of kWh

• Remove back button
• $.08, calculated by bill $70 dollars in 30 days and then hours

Q824

• Thought water heater was a small room heater
• Answer would change if he knew it was something used to heat water for a large living space

IHD Simulation ($ by appliance)

• Didn't realize how small the values were for fridge and freezer
• Asked whether freezers were more efficient
• Asked whether outdoor lights were typically brighter
• Looked at appliances where he made the most assumptions
  • Time he personally used appliances to get a sense of the $
  • Got a sense of how much each appliance used at a fixed time and changed temperature

Q296 10% reduction

• Had parent's house in mind, not the Smith's house
• Did not know about cooking appliances and how they would factor into the reduction
• Thought of strategies where it looked like it would make the largest change in usage based on the simulation
• Didn't spend much time on it

Q862 Ranking

• Electric oven
  • Clarified it wasn't the convection oven
  • Needed picture
• Forgot that things ran for the same time

Q872

• Changed answer to $0.45 because of the Smith's monthly usage figure
• Explained that the first estimate he used his mental model of his apartment usage
• Second time around he used the Smith's house and with a household size of greater than one
• Thought that the this was a fixed cost that was multiplied by variable usage

Q359 WTP

• Bill doesn't go over $60, so not willing to pay more than that
• WTP $60-$70
• People can't conceptualize how much they'll save from a baseline of usage
• Don't realize that the amount of savings from reductions is going to decay

Q874 Expected savings

• $25, ball park estimate

Hypothesis:

1. Trying to understand ppl's knowledge of their energy use
2. Testing education software or program to inform people and help them plan
3. Brainstorming before releasing a device; still in developmental stages