P1
HOK 2010
Carbon Footprint Report In 2007, HOK set a three-year goal to reduce emissions from projects and practice by 50 percent. In 2009, the firm signed the AIA 2030 Commitment, which requires project emissions reductions, sustainable business practices and annual reporting.
Significant Findings
1. Office energy use is going down. As HOK offices move to LEED certified spaces, our offices are becoming increasingly energy efficient.
2. Air travel is up. ACR use matters.
Business air travel soared in 2010, despite increased use of HOK’s Advanced Collaboration Rooms.
3. HOK needs better data collection. As the industry and our clients rely more on hard numbers, our lack of consistent data collection methods is becoming a problem.
Where Is Commuting? Data for employee commuting habits has remained largely unchanged over the past three years. We still recommend locating HOK offices near public transportation, increasing transport option awareness and continuing to offer alternative transportation subsidies.
View HOK’s Energy Use from 2007-2010 ►
P2
Energy Usage 2007-2010 Energy Use
kWh
2010
2009
2008
Summ ary of Findings
250
2007
▪▪The primary factor influencing our energy performance is proving to be a move to a new office, often cutting energy use in half as the new space is designed to meet LEED standards, such as in Chicago, Hong Kong, London and Toronto.
▪▪HOK’s average energy usage is trending down.
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Process ▪▪This year, four additional HOK offices were included: Calgary, Denver, Seattle and Vancouver.
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▪▪Carbon emissions are calculated using WRI’s globally accepted protocol. ▪▪In some cases, HOK energy usage was estimated based on total energy usage for the building.
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Suggestions for Improv ement ▪▪Sub-metering an office would provide a more accurate picture of localized energy usage. ▪▪Live metering with web-based dashboards would clearly show effects of temperature set points, longer hours, lights-out or extreme temperatures, and point to opportunities for improvement.
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P3
Energy Usage Energy Use Compared to the AIA 2030 Commitment Benchmark 2030 BENCHMARK
100%
2025 BENCHMARK
90%
2020 BENCHMARK
80%
2015 BENCHMARK
70%
2010 BENCHMARK
60%
Washinton d.c.
vancouver
toronto
TAmpa
St. Louis
shanghai
seattle
San francisco
ottawa
new york
miami
LA annex
london
houston
denver
dallas
0%
chicago
10% Typical Office
calgary
20%
beijing
30%
hong kong
40%
los angeles
50%
Atlanta
Above average performance
kBtu/SF/year
Below average performance
-10% -20% -30% -40% -50% -60% -70%
Summ ary of Findings The AIA 2030 Commitment calls for a 60 percent energy use reduction – from typical building energy usage – in 2010, leading to a 100 percent reduction, net zero, by 2030. Several HOK offices are not on track to meet this target.
-80% -90% -100%
suggested improv ements
HOK Office Energy Use Intensity (EUI)
kBtu/SF/yr
90
Average US Office EUI
89
88 86 84
▪▪ Each office should analyze how energy is used locally and determine ways to improve performance. In St. Louis, for example, this report and further research have revealed envelope performance problems and potential corrective measures.
90
85
▪▪ We should explore ways to improve occupant behavior, including reinforcing workstation shutdown and night/ weekend power-downs.
82 80 78
80
‘07
‘08
‘09
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P4
Air Travel CO2 Emissions by Business Unit B USINES S UNIT
*Data represents 58% of HOK's total air travel
MET RIC TO NS
Planning
3,273
St. Louis
2,700
San Francisco
1,787
Los Angeles
1,505
New York
1,140
Houston
1,055
Corporate
941
Chicago
910
Advance Strategies
666
Atlanta
615
Washington, D.C.
592
Asia Pacific
488
Tampa
261
Dallas
224
NUM B ER O F MIL ES 4,090,743 mi.
Summ ary of Findings
3,374,588 mi.
▪▪ After a significant reduction in air travel in 2009, business air travel rose again in 2010.
2,233,729 mi. 1,880,868 mi.
▪▪ As in years past, Planning and St. Louis represent a significant portion of the firm’s air travel.
1,424,880 mi. 1,318,455 mi. 1,176,621 mi. 1,137,233 mi. 832,729 mi. 768,389 mi. 739,821 mi. 610,000 mi. 326,630 mi. 280,116 mi.
Construction 52 64,424 mi. Services 0
1,000,000
Process ▪▪ This graph represents data from American Express and FCm. The remaining 42 percent of the firm’s travel mileage was not recorded or was tracked by other programs. ▪▪ Distance traveled was converted into carbon emissions using WRI’s globally accepted protocol.
2,000,000
3,000,000
4,000,000
suggested improv ements ▪▪ We recommend all business units consistently use CWT/Concur or American Express to collect complete air travel data. Separating project- and non-project travel could provide more clear reduction solutions.
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P5
Air Travel CO2 Emissions by Business Unit
2010 ACR Usage by Office
*Data represents 58% of HOK's total air travel TO P T R AVEL ED CITY PA IRS
MET RIC TO NS
NUM B ER O F MIL ES
527,400 mi.
New York La Guardia <--> St. Louis
211
Mumbai <--> New York Newark
178
Denver <--> St. Louis
174
Los Angeles <--> St. Louis
158
Los Angeles <--> Singapore
130
325,896 mi.
Mumbai<--> St. Louis
127
317,029 mi.
London <--> St. Louis
111
278,322 mi.
Los Angeles <--> Chicago
110
276,163 mi.
NUM B ER O F H O U RS
St. Louis San Francisco
444,429 mi.
Chicago
435,204 mi.
New York Washington D.C
396,197 mi.
Atlanta
Summ ary of Findings
Houston
▪▪ With ACRs in every office, HOK has significantly reduced meeting travel over the past two years. In 2010, ACR use saved a reported 2,000 trips - approximately 200 flights per month, or 90 tons of CO₂.
London Los Angeles SIngapore Hong Kong Toronto
Doha <--> San Francisco
109
Chicago <--> St. Louis
100
272,933 mi.
Dallas Tampa
249,856 mi.
Seattle 0
2,000,000
4,000,000
6,000,000
Process
suggested improv ements
▪▪ Data from American Express was used to determine the top 10 most traveled U.S.-based routes.
▪▪ Expanded use of ACR technology and an appropriate air travel benchmark are key a low-carbon business model.
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200
400
600
800
▪▪ The number of trips saved through ACR usage is tracked when a meeting is scheduled.
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1,000
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