capturing hidden value in local assets - gordon gill, partner at adrian smith + gordon gill
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CHICAGODECARBONIZATION PLAN
Gordon Gill AIA
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CO2 emissions 21%
Source: Chicago Climate Action Plan
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Buildings: 70%(3x Cars)
Source: Chicago Climate Action Plan
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600M people/yr
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2015 Megacities
Tokyo, 36 million New Delhi, 24 millionMumbai, 22 millionMexico City, 21 millionSão Paulo, 20 million
© National Geographic
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MASDAR HEADQUARTERS
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New buildings 1% of stock
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CATALYST FOR LARGER STUDY
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68,000,000 kwh/year =
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THE STUDY AREA
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The Chicago Loop Produces 3.9 Million Metric Tons of Carbon Each Year
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PV FARM WIND FARM
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90 % of the square footage of buildings in the Chicago Loop was built before 1975. Much of this square footage has equipment and systems nearing the end of their life cycle. New buildings account for less than 1% of Chicago’s building stock.
10%
1%
Carbon Use
Land Use
NEW CONSTRUCTION vs. EXISTING BUILDING STOCK
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THE CHICAGO LOOP PARAMETRIC MODEL
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DATA MODEL: BUILDING USE
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DATA MODEL: BUILDING SIZE
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DATA MODEL: TOTAL CARBON
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DATA MODEL: ENERGY USE/ INTENSITY
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DATA MODEL: BUILDING ERA
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• Masonry with punched operable windows (25%- 50%)
• MEP-not operating optimally
• Narrow floor plates allow for natural light
HERITAGE BUILDINGS: 1880- 1950 (PRE AIR CONDITIONING)
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• Curtain wall systems
• Glass percentage: 50% to 80%
• Mechanical plants have large heating and cooling capacity to overcome internal load
• Heat by light was common
• Large floor plates with central core
MID-CENTURY BUILDINGS: 1950-1975 ( PRE ENERGY EMBARGO)
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POST ENERGY CRISIS: 1975-2000
• Curtain wall systems
• Mirrored or dark tinted glass single or double pane
• Introduction of thermal breaks
• Induction/fan coil units at perimeter with interior air via ducted systems
• Mechanical plants begin to use variable equipment
• Lighting levels steadily reduced from 1970s levels
• Large floor plates with central core
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LEED AWARENESS BUILDINGS ERA: 2000- PRESENT
• Curtain wall systems
• Clearer glass with Low-E coatings or tint: double pane
• VAV or FCU systems with less perimeter heat needed
• Use of variable frequency pumps, drives and DDC controls
• Lighting levels reduced to meet energy codes and LEED
• Natural daylight and light controls
• Large floor plates but shallower lease spans for natural light
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CITY WITHIN A CITY – MIXED USE COMMUNITY
District Cooling Basic NecessitiesSchools Parks
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URBAN DENSITY VERSUS GASOLINE USAGE
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MOBILITY NETWORK ANALYSIS
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INTER-MODAL GREEN AXIS
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MONROE INTER-MODAL GREEN AXIS
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DECARBONIZATION… STEP-BY-STEP
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+ 30% Development < 50% Carbon
0.000.751.502.253.003.75
MM
TCO
2e
Carbon Footprint Existing (MMTCO2e) Carbon Footprint New (MMTCO2e)Additional High Performance Office Decarbonization + Transit
00
25
50
75
100
2009 205Mixed Use Office
50%
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Old Technology / Old Philosophy
New Technology / Old Philosophy
New Technology / New Philosophy
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“The real voyage of discovery consists not in seeking new landscapes but in having new eyes.”– Marcel Proust