This document presents a preliminary report on energy consumption data from buildings at the University of Hawaii (UH) and Hawaii Pacific University (HPU) during their 2012 Kukui Cup energy reduction competition. The data shows that buildings at UH generally saw an increase in energy use from August to October, while buildings at HPU remained flat. The competition appeared to temporarily flatten the rising trend at UH when participation was over 60%. Buildings with 100% participation at HPU saw up to a 20% reduction, while most buildings at both universities showed little impact from the competition.

1. 2012 UH and HPU Kukui Cup
Energy Consumption Data:
Preliminary Report
Philip Johnson
Collaborative Software Development Laboratory
Information and Computer Sciences
University of Hawaii
(1)

2. UH Data Background
Data points at weekly intervals.
Prior to challenge (August):
• One data point last week of August
Challenge (Month of September):
• Four data points during September.
• Orange rectangle highlights interval
Post challenge (October) :
• Three data points in October.
(2)

3. UH Building-level Data
(3)

4. Lokelani and Mokihana Buildings
(4)
Upward trend in consumption.

5. Ilima and Lehua Buildings
Lehua "flat" for first 2 weeks, then upward trend
(5)

6. UH Lounge-level Data
For ease of review, only 2 or 3
lounges per chart
(6)

7. UH Ilima A, B
(7)
Little apparent impact of challenge.

8. UH Ilima C, D, E
Ilima-E: flattened for first week, then upward.
Ilima-D: flat the whole way through.
(8)

9. UH Lehua A, B
Little apparent impact of challenge.
(9)

10. UH Lehua C, D, E
Lehua-D: ~9% decrease from 8/27 to 9/17 (64% participation)
(10)

11. UH Lokelani A, B
Little apparent impact of challenge. (43%, 9% participation)
(11)

12. UH Lokelani C, D, E
Little apparent impact of challenge. (50%, 20%, 33% participation)
(12)

13. UH Mokihana A, B
Little apparent impact of challenge. (28%, 38% participation)
(13)

14. UH Mokihana C, D, E
Little apparent impact of challenge (38%, 32%, 21% participation)
(14)

15. HPU Data Background
No lounges: all building level.
3 week challenge:
• September 17 – October 7
• Orange rectangle around interval
Lehua building data
• Not available due to meter
misconfiguration.
(15)

16. HPU Lokelani
20% drop from 9/17 to 9/24 (100% participation)
(16)

17. HPU Mokihana
13% drop from 9/10 to 9/24 (64% participation)
(17)

18. HPU Melia
Little apparent impact of challenge. (8% participation)
(18)

19. HPU Kukui
Little apparent impact of challenge. (9% participation)
(19)

20. HPU Ilima
Little apparent impact of challenge. (9% participation)
(20)

21. Insight 1: Participation
Level of participation is correlated with
perceptible change in consumption on
weekly basis.
If participation is greater than 60%, then
consumption changes perceptibly
• UH/Lehua-D: 64% participation, 9% drop
• HPU/Lokelani: 100% participation, 20% drop
• HPU/Mokihana: 64% participation, 13% drop
(21)

22. Insight 2: Building level trends
UH buildings showed a significant
increase in energy consumption from
August to October.
• Effect of competition was to
temporarily "flatten" this increase.
HPU Buildings did not show this trend.
• Effect of competition was more
significant.
Not sure why there is this difference
between UH and HPU.
(22)

23. HPU building consumption flat
(23)

24. UH building consumption increased
13%, 19%, 26%, 26%
(24)

25. Questions?
(25)