Neuqua ValleyEnergy Reduction Challenge 2011
Meet the Problem    • Students were introduced      to the problem with letters      from ComEd and ARAMARK      district ...
The ProblemNeuqua Valley’sMonthly Electric Bill                              $50,380                              per month
Understanding the Problem• Process of listing what they already  knew and what needed to be  determined.• Students created...
Community Partners• ComEd: Mr. Mark Wizniak- senior Energy Specialist• ARAMARK: Mr Mike Paperella- energy Manager Dist 204...
Energy Audit• Survey conducted throughout the  building• Students using ipads and journals,  documented how electrical ene...
Energy Audit
Tools of the Audit                                           Light meterKill a watt meter   Laser measuring tape
Post AuditIdentified areas of energy reduction  or energy inefficiencyStudents organized themselves into  teams of 2 or 3 ...
Identified Possible Opportunities•   Classroom lighting•   Bathrooms•   Weight room and Gym•   Computers•   Plug Loads•   ...
Classroom Lighting• Light level intensity measurements  indicated that each classroom was overlight• The Advanced Energy D...
Classroom lighting• Light levels were measured to 60-70 foot-  candles when all the switches in the classroom  were on.
Classroom Lighting: Solution• By ONLY turning on one switch, light  levels were still at 50 footcandles.• Energy usage cou...
Classroom Lighting• Based on 60 T-8, 28Watt light bulbs  and roughly 110 classrooms.• Operating for 12 hours a day and 177...
Classroom Lighting• Solution: Ad Campaign to educate  staff and students of the savings.  – Switch plate stickers, poster
Bathrooms      • Lights are on at least        18 hours/day      • Bathrooms are only        occupied a total of 4        ...
Current State  Location #bathrooms #bulbs Kw/bathroom  Aud.        4               20        0.560  Lobby  Hallways    10 ...
Current UsageLocation               KWhr/bathroomAuditorium Lobby       302Hallways               181Commons              ...
Proposed Savings with Motion Sensors  Location                 KWhr/bathroom  Auditorium Lobby         67  Hallways       ...
Return on InvestmentInitial Cost With Labor   $6,473Savings per month         $252.25# months to cover          25.66 mont...
Weight Room• Current lighting:  T-12• Proposed  lighting: T-8
Cost Savings                     40000                     35000   Cumulative Cost   30000                     25000      ...
Gym  • Current lighting: HID  • Proposed lighting: T-5HID fixtures in Gym          Proposed T5 fixture
Cost Savings                  250000                  200000Cumulative Cost                  150000                       ...
Computers         Currently 1100 computers in use• 850 are old CRT type    •250 are new LCD type  5.2W phantom load      ...
Current Configuration850 Old Computers                      250 New ComputersON              Phantom Load           ON(141...
Current Computers with        Shutdown Software850 Old                                250 New computersComputers       Pha...
Solution: New Computers with       Shutdown Software1100 New Computers= 89W x 10 hrs x 1100 x 177 days/school year        ...
Phantom Loads• Electricity is used even when  electrical device is not in use
Phantom Loads KWhr Used / Cost Per      Item     Number of Units        Year        Year                                  ...
Phantom Loads• Out of TV, overhead, VCR and projector, just use  one, and get rid of the rest; projector seems the  most r...
Phantom Loads• 30 % energy reduction• Energy Savings of 6,396 KWhr/year• Cost Savings: $639.60
Cafeteria Lighting     • About 100 lights total     • 87 CFLs     • 13 T-8 bulbs
Replace All with LEDs
Conclusion• ROI/Year and initial cost not feasible• Realistically, this solution is not  financially practical• Better to ...
The VariableFrequencyDrive
Overview•Summary: The VariableFrequencyDrive, belonging to a class ofelectric variable speed drives, acts as the brains of...
Methods of Measurement          VS
Total Projected Energy Savings:120,971 KWhr/ year
Summary• Total energy savings for all feasible  solutions is 600,000 kwhr per year• Once ROI year is reached…• Savings is ...
SummaryEnergy Equivalence Calculation Courtesy of SIEMENShttp://siemens.greentouchscreen.com/CO2eCalculator/
Energy Innovation ILIT Powerpoint
Energy Innovation ILIT Powerpoint
Energy Innovation ILIT Powerpoint
Upcoming SlideShare
Loading in …5
×

Energy Innovation ILIT Powerpoint

645 views
552 views

Published on

PowerPoint by Neuqua Valley High School presented at Illinois Innovation Talent Conference on April 11, 2011.

Published in: Education, Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
645
On SlideShare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
5
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Energy Innovation ILIT Powerpoint

  1. 1. Neuqua ValleyEnergy Reduction Challenge 2011
  2. 2. Meet the Problem • Students were introduced to the problem with letters from ComEd and ARAMARK district 204’s energy management services.
  3. 3. The ProblemNeuqua Valley’sMonthly Electric Bill $50,380 per month
  4. 4. Understanding the Problem• Process of listing what they already knew and what needed to be determined.• Students created a statement to reflect what their role was in the process and what they wanted to accomplish.
  5. 5. Community Partners• ComEd: Mr. Mark Wizniak- senior Energy Specialist• ARAMARK: Mr Mike Paperella- energy Manager Dist 204• ARAMARK: Mr. Leonard Sharum- building manager• OSRAM Sylvania: Ms Rose Lenchner- Industrial/Commercial Senior Sales• Neuqua Valley: Mr Mark Kolkman assistant principal- operations
  6. 6. Energy Audit• Survey conducted throughout the building• Students using ipads and journals, documented how electrical energy was being used in lighting and motors
  7. 7. Energy Audit
  8. 8. Tools of the Audit Light meterKill a watt meter Laser measuring tape
  9. 9. Post AuditIdentified areas of energy reduction or energy inefficiencyStudents organized themselves into teams of 2 or 3 to attack one identified area.Students reported back findings and created this presentation.
  10. 10. Identified Possible Opportunities• Classroom lighting• Bathrooms• Weight room and Gym• Computers• Plug Loads• Motors
  11. 11. Classroom Lighting• Light level intensity measurements indicated that each classroom was overlight• The Advanced Energy Design Guide for K-12 School Buildings, developed by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recommends 30-70 footcandles of illumination
  12. 12. Classroom lighting• Light levels were measured to 60-70 foot- candles when all the switches in the classroom were on.
  13. 13. Classroom Lighting: Solution• By ONLY turning on one switch, light levels were still at 50 footcandles.• Energy usage could be reduced by one third in each classroom
  14. 14. Classroom Lighting• Based on 60 T-8, 28Watt light bulbs and roughly 110 classrooms.• Operating for 12 hours a day and 177 days in the school year• Projected savings: 131,000 KWhr @$0.10/KWhr Savings of $13,000
  15. 15. Classroom Lighting• Solution: Ad Campaign to educate staff and students of the savings. – Switch plate stickers, poster
  16. 16. Bathrooms • Lights are on at least 18 hours/day • Bathrooms are only occupied a total of 4 hours/day
  17. 17. Current State Location #bathrooms #bulbs Kw/bathroom Aud. 4 20 0.560 Lobby Hallways 10 12 0.336 Commons 2 21 0.588 Gym Hall 2 12 0.336 Total 18 266 7.448Estimated hours of usage = 18 hours a day = 540 hours amonth
  18. 18. Current UsageLocation KWhr/bathroomAuditorium Lobby 302Hallways 181Commons 318Gym Hall 181Total 983Total Operating Cost $323.75
  19. 19. Proposed Savings with Motion Sensors Location KWhr/bathroom Auditorium Lobby 67 Hallways 40 Commons 71 Gym Hall 40 Total 218 Total Operating Cost $71.51 Estimated hours of usage = 4 hours a day = 120 hours a month
  20. 20. Return on InvestmentInitial Cost With Labor $6,473Savings per month $252.25# months to cover 25.66 monthsReturn on Investment 2.14 years
  21. 21. Weight Room• Current lighting: T-12• Proposed lighting: T-8
  22. 22. Cost Savings 40000 35000 Cumulative Cost 30000 25000 20000 T12 15000 T8 10000 5000 0 0 2 4 6 8 10 12 YearsReturn on Investment reached at less than 5 years
  23. 23. Gym • Current lighting: HID • Proposed lighting: T-5HID fixtures in Gym Proposed T5 fixture
  24. 24. Cost Savings 250000 200000Cumulative Cost 150000 HID Retrofit 100000 T-5 H.O. 50000 0 0 2 4 6 8 10 12 Years Return on Investment reached in just over 4 years
  25. 25. Computers Currently 1100 computers in use• 850 are old CRT type •250 are new LCD type 5.2W phantom load No phantom load 141W when on 89W when on
  26. 26. Current Configuration850 Old Computers 250 New ComputersON Phantom Load ON(141W x 12hr + 5.2W x 12hrs) x850 + 89W x 10hrs x250 = 1714 KWhr/day x 177 days/school year 303,378 KWhr/year Total cost at $0.10/KWhr $30,378
  27. 27. Current Computers with Shutdown Software850 Old 250 New computersComputers Phantom Load(141W x 10hrs + 5.2W x 14hrs) x850 + 89W x 10hrs x250 =1482 KWhr/day x 177 days /school year 262,314 KWhr/year Total cost at $0.10/KWhr $26,231
  28. 28. Solution: New Computers with Shutdown Software1100 New Computers= 89W x 10 hrs x 1100 x 177 days/school year 173,283 KWhr/year Total cost at $0.10/KWhr $17,328 Total Projected Energy Savings: 130,095 KWhr/year
  29. 29. Phantom Loads• Electricity is used even when electrical device is not in use
  30. 30. Phantom Loads KWhr Used / Cost Per Item Number of Units Year Year Survey of ElectricalTV 21 4200 551.88Projector 7 3150 413.91 devices in BuildingPrinters 39 956 125.57Fridge 7 5740 754.25Microwaves 9 900 177.39 Total Phantom Load:LCD computer 21 2100 551.88 21,318 KWhr/yearSmartboards 2 180 41.06Dishwasher 1 170 5.58VCR 1 40 7.88 Total costFreezer 1 790 51.9 @$0.10/KWhrOverhead 1 3092 414.33TV 21 4200 551.88 $2,132 /yearProjector 7 3150 413.91
  31. 31. Phantom Loads• Out of TV, overhead, VCR and projector, just use one, and get rid of the rest; projector seems the most reasonable to use• For fridges, freezers, microwaves, dishwashers, and other appliances, purchase energy-efficient models• Smart powerstrips• For printers, scanners, and copy machines, buy models where all are combined into one unit.• Unplug TV, overhead, VCR, projector, computers, scanners, and copy machines when the school day ends.
  32. 32. Phantom Loads• 30 % energy reduction• Energy Savings of 6,396 KWhr/year• Cost Savings: $639.60
  33. 33. Cafeteria Lighting • About 100 lights total • 87 CFLs • 13 T-8 bulbs
  34. 34. Replace All with LEDs
  35. 35. Conclusion• ROI/Year and initial cost not feasible• Realistically, this solution is not financially practical• Better to leave the cafeteria as is – CFL lights are the next best thing CFL LED
  36. 36. The VariableFrequencyDrive
  37. 37. Overview•Summary: The VariableFrequencyDrive, belonging to a class ofelectric variable speed drives, acts as the brains of a motorthat converts electrical power, which is at a fixed voltage andfrequency, to variable voltage and frequency•Purpose: To control the output speed of a motor byconsuming only the power that is needed. This reduces energyusage by almost 2/3 VFD
  38. 38. Methods of Measurement VS
  39. 39. Total Projected Energy Savings:120,971 KWhr/ year
  40. 40. Summary• Total energy savings for all feasible solutions is 600,000 kwhr per year• Once ROI year is reached…• Savings is $60,000 per year OR• $5,000 per month
  41. 41. SummaryEnergy Equivalence Calculation Courtesy of SIEMENShttp://siemens.greentouchscreen.com/CO2eCalculator/

×