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Energy Audit

Evaluating the energy usage on Floor 4 in order to understand how we can reduce it. We're using the Kill A Watt to see how much power is being drawn from an individual outlet. Here's a much prettier version - the Watson from DIY Kyoto.

Looking to continue the Energy Audit? Here are some suggestions:

  • Purchase at least 2 more Kill A Watt devices (or make your own). It's easier to get a small group together and do it over the course of a couple hours.
  • Create an easier-to-use table for inputting results and include a training guide with the Kill A Watt so people are clear on knowing what they're looking for.
  • Work with staff. Since equipment needs to be turned off, it can be difficult to get readings. Maybe try to get one day publicized as the ITP Energy Audit day so everyone can help out.
  • Have a Drive-By about energy on the floor, including proposed solutions. Train people on how to use Kill A Watt and have a sign-up sheet for small areas of floor. Follow up with people.

Here are some of our suggestions for reducing energy usage at ITP.

Instructions for helping with the Energy Audit:

The Kill A Watt is at the ER. Please take it, and take a room or two. Use the killawatt to record the energy usage of everything plugged in in the room. It's great if you have enough time to leave the Kill A Watt for a while on objects that vary in energy draw, like the printers. Please press the Watt button and watch the energy draw on start up of the object and then when it evens out. (Be aware that if you press the Watt button twice it will show you VA, so be sure to look at the readout screen to make sure you're reading Watts. After it's be plugged in for a while, press the KWH button. This will give you the cumulative KW since it's been plugged in. Press that button again to see the amount of time in hours and minutes. If you don't want to do the math to record the KW/hour, just record both KW and time in minutes and we'll do the math. Count the lights and record wattage for each bulb if possible. You don't have to test every machine - just 2 and estimate the others unless for some reason you're getting widely varying numbers. If you don't feel like you can unplug anything, just list what's there. And, it'd be really great if you could write how many hours a week you would estimate the object is on, and how many hours it's actually used.

Obviously, take care when doing this since it involves unplugging stuff. We don't need to get every project in the hallways or every office because we can estimate. Even if you list 1 computer, 2 bulbs for an office, that's better than nothing. It was suggested that for the offices, we can ask staff to take the KillAWatt and do their own readings, so we don't interrupt them too much. And for projectors, make sure you unplug them only after the lamp has been off for at least a minute.

Energy Audit Results: (Jeff LeBlanc has made a much nicer spreadsheet from this data - ask him how to get access to it)

ObjectWattsKW/hourHrs/week onHrs/week usedSuggestions
 
Japanese RoomRebecca
24 bulbs90W 120 hrs on?120 hrs usedCFL low-energy bulbs
6 PCs70 W always on?100 hrs used 
1 Mac110 W always on?100 hrs used 
4 speakers  always on?100 hrs used 
Lobby and HallwaySign up
Various Pcomp projectsWkWhhrs onhrs used 
8 CFL bulbs  always on?100 hrs used 
4 Flood Lights  always on?100 hrs used 
1 Mac at reception  always on?100 hrs used 
10 CFLs in hall  always on?100 hrs used
4 bulbs in hall  always on?100 hrs used 
AV LabMegan
19 Mac Towers139.5 W (no programs running)2.85 KW\H(some programs used over 3 hours)Always80 hrs/week?Can we turn them off at night?
18 MiniDV DecksNot in Use-.3W/ On but Idle-13W/ Playing tape-16W.1 kwh (not in use)Always40 hrs/week?
Long LabDemetrie
Room 406Alice
Shop (get the numbers for a couple soldering irons, drill, etc. and try to get a sense of how many hours a day or week such things might be plugged in...)Jeff
Shop Powertool roomJeff
Bathroom in Shop
Lounge including hallways east and west
Room 442ilteris
10 fluorescent? 120 hrs on?120 hrs usedCFL low-energy bulbs
1 PC  always on?100 hrs used 
1 Mac  always on?100 hrs used 
1 projector260W when on 7 classes a week makes it on for at least 15 hours  
5 spots75Wnot working.   
Room 445Andrew
Room 447Andrew
Residents Room
Back Office (what's that called?)
Tom's officeKarl
1 CFL low-energy bulb     
2 fluorescents w/ motion sensor     
2 Macs     
3 phones     
Danny Rozin's officeKarl
2 fluorescents w/ motion sensor     
1 laptop     
1 PC     
1 Set of Speakers     
1 Large Format Printer     
Jean-Marc Gauthier's officeKarl
1 laptop     
1 fluorescent w/ motion sensor     
1 phone charger     
Nancy's officeKarl
1 Mac  always on?100 hrs used 
2 fluorescents w/ motion sensor  always on?100 hrs used 
1 lamp  always on?100 hrs used 
1 clock   always on 
Rushkoff office
Marianne officeKarl
George officeKarl
1 imac     
2 fluorescents w/ motion sensor     
1 alarm clock     
1 speaker set     
Red's officeKarl
4 fluorescents w/ motion sensor     
1 iMac     
1 TV     
1 phone     
1 VHS player     
Midori's office|Karl
1 Mac     
1 PC     
2 fluorescents w/ motion sensor     
1 phone     
Open Admin area    ilteris
10 fluorescent lights     
1 bulbs90W 120 hrs on?120 hrs usedCFL low-energy bulb
3 Mac     
1 pc     
1 strip cut02W when standby, 104W when cutting 5 hours/w25 hours/w  
1 big photocopy machineI couldn't measure it unfortunately    
1 normal printer     
1 Xerox Printer80W when standby, 250W when working7/24 standby   
ERAngela
1 Mac & laser printer53-756W0.20KWHAlways100?
Speakers, Ethernet hub23WIn processAlways??
Camera battery chargers130-140W Always??
Power tools battery chargersOutlet behind storage cabinet Always??
Fridge0W0.3KWHAlwaysAlways?
Microwave0W, 1200W when nuking AlwaysApprox 1?
12 bulbs300W (25W/ea) Approx 100100CFL low-energy bulbs - are they available in long tube style?
1 rogue heater in the winter time
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