Transcript Session VII SUSTAINABLE DESIGN FOR THE FUTURE MEETING THE 2050 CHALLENGE Mahadev Raman Director for Social Infrastructure, Arup.

Session VII
SUSTAINABLE DESIGN FOR THE FUTURE
MEETING THE 2050 CHALLENGE
Mahadev Raman
Director for Social Infrastructure, Arup
MEETING THE 2050
CHALLENGE
Mahadev Raman
November 6th, 2009
Our Environment
.
Courtesy of Science Photolibrary
• Buildings in the US emit 9% of global CO2
• That is 2337m metric tons per year
• Emissions have been growing rapidly
Carbon Dioxide Emissions
300
NOW
Built environment
contribution to UK
greenhouse gas
emissions
Mtonnes CO2 equiv.
250
200
150
100
50
0
Domestic
Industrial Buildings
Commercial Offices
Communication & Transport
Education
Government
Health
Hotel and Catering
Other
Retail
Sport and Leisure
Warehouse
Seattle’s 2007 greenhouse gas reduction plan:
• 7% below 1990 levels by 2012
• 30% below 1990 levels by 2024
• 80% below 1990 levels by 2050
By 2050:
• Population growth from 306m to 438m
• 40% increase in building stock
• 70% of current buildings still in use
• Current buildings are 50% of the stock
What we need to do:
• New buildings consume 15% of current use
• That means 70% below current code
• Existing buildings 50% below current use
• That means massive investment!
Beddington Zero Energy Development BedZed
Beddington Zero Energy Development, United Kingdom
California Academy of Sciences
Syracuse Center of Excellence
Destiny Florida
Destiny, Florida, USA
Carbon Reduction Strategies
Destiny, Florida, USA
Renewable Energy:
• 300GW of new capacity by 2050
• That is 200sf of PV on 120m dwellings
• 7.5GW/yr for buildings, 15GW/yr total
• Currently 5.5GW/yr – 90% wind energy
Renewable Energy Abundance
Solar 89,000 TW
Wind
©Frank van Mierlo
370 TW
Consumption
15 TW