# IHD simulation - P004

## P004

Intro

• Understood the intro and that these displays can show us how we use electricity

Q253

• Did not understand what a hot water heater was (had to explain that’s how you get hot water in your sink and shower)
• Understood what the question was asking

Cost of Electricity Utility TOD

• Looked confused and crossed his arms when reading the question
• Interpreted the question as when people use the most electricity

Electricity Use TOD

• After seeing this question he realized that he might have confused the last one with this
• But he still had the same reasoning for when it costs the utility company the most to provide electricity

• Was able to explain what Volts were
• Also able to explain units of electricity

Q828

• Power rating was explained as “usage of energy for a particular appliance”
• Knew it related to the previous question
• But did not understand that you had to multiply by the time used (he chose divide)

Q257

• \$50
• Confused with the electricity bill total

Q824 Energy Saving Ranking

• At first wanted to break it up into two categories, but then changed his mind
• Was not implicit that if you line dry clothes for 5 mo, you’re saving the electricity that would have been used to dry clothes
• He was thinking that you wouldn’t save much because you don’t plug anything in to line dry to begin with

Q304 IHD intro

• Understood that the intro was talking about the Smith’s house
• Did not get that the outside temperature was 85 degrees and thought that was the temperature the Smith’s liked to have indoors

Q918 IHD simulation (\$ bottom)

• Very meticulous when testing out each appliance
• Measured everything in 15 min intervals
• Saw how much the \$ increased by going through each appliance
• Was extremely surprised when he found out hot water heater and clothes dryer used a lot of energy
• Figured out that for each 15 min you dry clothes, you add on \$.10 to your electricity bill
• Did that for each appliance
• Kept the AC at 85 degrees because that’s what he thought the Smith’s intro scenario told him to do

Q296 Electricity knowledge

• Utilized the dollar amounts he figured out from the simulation to give strategies on how to reduce
• However it was not specific to the Smith’s budget, rather he gave answers based on what he learned used the most

Q862 Ranking electricity use

• “My answers are definitely different from before”
• Used the costs he figured out to rank them, however he didn’t use paper or write down any of his calculations
• Still didn’t think that the AC uses a lot because he didn’t see much price increase at 85 degrees when running for different time periods

Q363 Predicted reduction

• Instantaneous cost will allow a person to see the usage right now and make split decisions
• Wanted information by appliance and by cost, didn’t think kWh would be useful

Q316 Home Appliances

• Make sure to add N/A to type of power source in the case that they don’t have one at all

Hypothesis guess: 1) make people more aware of energy saving and how we use electricity; 2) compare usage through adjustment of features; 3) find out where to slash the budget