measuring energy and occupant satisfaction, a evidence based design presentation
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Measuring Energy and
Occupant Satisfaction
Evidence Based Design Symposium
AIASF April 26, 2011
Scott Shell, FAIA | EHDD Architecture
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Energy Use (Kbtu/sf/yr)
Actual: 141
Design: 111
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
“We check up on this project to see why it is running 27% above its predicted energy use”
GreenSource
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
45% < Code
$238,000
$158,000
1.6 %
Energy Use:
PVs $:
$ after Rebate
% Total Cost
Chartwell SchoolSEASIDE, CALIFORNIA
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Total Electricity Use For Specific Time Periods
0
10000
20000
30000
40000
50000
60000
70000
80000
90000
Total All
Hours
Week Days Week Ends Daytime
Week Day
Nightime
Week Day
Daytime
Week End
Nightime
Week End
Morning
Week Day
Afternoon
Week Day
Ele
ctr
icity U
se
[kW
h]
Multi-purpose HVAC
Multi-purpose Tech Center
Multi-purpose Plugs
Multi-purpose Lighting
Classroom HVAC
Classroom Plugs
Classroom Lighting
Why Not Zero?
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Unanticipated Loads
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
“Free” Equipment
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
User Operation: Site Lighting
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
PV Array Daily Electricity Production [kWh]
0
20
40
60
80
100
120
140
160
180
200
June-0
7
August-0
7
Septe
mber-0
7
Novem
ber-0
7
January
-08
Febru
ary
-08
April-0
8kW
h
Chartwell: Is the PV Array Working?
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Operation Schedule
Net Energy
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Actual EUIs (Medium Energy Types)
0
20
40
60
80
100
120
140
Medium Energy Type Buildings
Ac
tua
l E
UI
Certified Silver Gold Platinum
CBECS: 91, all types
LEED: 69, all types
Chartwell
Courtesy of Mark Frankel, NBI
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
0
10
20
30
40
50
60
70
80
0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 0:00 3:00 6:00 9:00 12:00
Cu
rren
t D
raw
(A
)
October 19-20, 2009
HVAC
Plug Loads
Lighting
Controls Incorrect
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Equipment Failure
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Equipment Failure
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Net Annual Energy Use (2009)
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Occupant Satisfaction
Acoustics Airquality LightingThermal Comfort Overall
Chartwell 80 99 92 98 86
Global Ecology 77 99 61 97 98
IDeAs 30 97 95 96 88
Kavli 85 98 92 72 87
Mills A 93 82 84 90
CSUMB 65 77 42 29 66
SMPL 61 68 65 43 72
Merced 61 76 71 28 28
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Occupant Satisfaction
Acoustics Airquality LightingThermal Comfort Overall
Chartwell 80 99 92 98 86
Global Ecology 77 99 61 97 98
IDeAs 30 97 95 96 88
Kavli 85 98 92 72 87
Mills A 93 82 84 90
CSUMB 65 77 42 29 66
SMPL 61 68 65 43 72
Merced 61 76 71 28 28
Radiant
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Occupant Satisfaction
Acoustics Airquality LightingThermal Comfort Overall
Chartwell 80 99 92 98 86
Global Ecology 77 99 61 97 98
IDeAs 30 97 95 96 88
Kavli 85 98 92 72 87
Mills A 93 82 84 90
CSUMB 65 77 42 29 66
SMPL 61 68 65 43 72
Merced 61 76 71 28 28
Dedicated Ventilation
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Occupant Satisfaction
Acoustics Airquality LightingThermal Comfort Overall
Chartwell 80 99 92 98 86
Global Ecology 77 99 61 97 98
IDeAs 30 97 95 96 88
Kavli 85 98 92 72 87
Mills A 93 82 84 90
CSUMB 65 77 42 29 66
SMPL 61 68 65 43 72
Merced 61 76 71 28 28
Underfloor Air
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Occupant Satisfaction
Acoustics Airquality LightingThermal Comfort Overall
Chartwell 80 99 92 98 86
Global Ecology 77 99 61 97 98
IDeAs 30 97 95 96 88
Kavli 85 98 92 72 87
Mills A 93 82 84 90
CSUMB 65 77 42 29 66
SMPL 61 68 65 43 72
Merced 61 76 71 28 28
Thin Building Section
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
The David & Lucile Packard Foundation
343 Second Street Project
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Sustainability Strategies
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Computer Monitor Energy Use
Courtesy of Rumsey Engineers
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Energy monitoring AnnualReal Time (actionable)
Acoustic Testing during construction
Controls Integration Sub
Clearly Defined CommissioningAutomatic sunshadesLighting controls
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
Design Team: Post Occupancy PhaseClient Team: Sustainable Task Force
EVIDENCE BASED DESIGN | AIASF | APRIL 26, 2011
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