Pearl River New City- Guangzhou Twin Tower
Presented at
USMCA 2008
Beijing, China
22-Oct-2008
Copyright: Wilkinson Eyre Architects
GREEN BUILDINGS
CURRENT STATUS AND PROSPECTS
Pranab J Baruah, PhD
Research Fellow
The University of Tokyo
Copyright: Michael Ficeto/Hearst Corporation

Building Footprint on GHG Emissions
Worldwide share of different sectors in total
anthropogenic GHG emissions in C02 equivalent
(Year 2005; Forestry includes deforestation)
2.8
19.4 17.4
Green Buildings, USMCA 2008 Beijing
7.9
13.5
7.9
25.9
Data source: Climate Change 2007, IPCC

Building Footprint
Taking Into account the entire lifespan of buildings…
Green Buildings, USMCA 2008 Beijing
Source: UNEP SBCI 2006

GHG Mitigation Potential in 2030
Building sector : ‘low hanging fruit’ for GHG mitigation
Greening building sector : win-win solution
Green Buildings, USMCA 2008 Beijing
Source: Climate Change 2007, IPCC

What is Green Building
★ A Green Building is OFTEN NOT Sustainable Building ★
★A Sustainable Building is a Green Building★
Sustainable Building
NO net impact on environment
Green Building
Green Buildings, USMCA 2008 Beijing
focuses on incremental steps
to solve known and measurable
problems with our current practice
A Greener Building in India may be less green than a
normal building in Japan in using energy and resources
Greener than average, Greener than baseline

Pearl River
GREEN BUILDINGS ARE BETTER IN… Tower
Community
Transport
Development
Energy
Efficiency
Indoor
Sustainable
Environmental
Quality Green Landuse Design &
Building
Green Buildings, USMCA 2008 Beijing
Delivery
Affordability
criteria Process
Water Global
Resource Environmental
Mgmt. Material, Impact
Resources
Efficiency
Affordability Durability
71 story, 2010

Ancient Green Buildings !!
Ancient Chinese and Indian geomacy principles are
similar to several present green building attributes
Feng-shui tries to achieve a balance
between natural sunlight, air and
water within a building
Green Buildings, USMCA 2008 Beijing
Vastushastra tries to harmonize
the flow of energy with exact
directions for objects, rooms etc.

Modern Green Building (GB) Movement
Green Buildings, USMCA 2008 Beijing

Factors of Green Building Movement
Global warming
Climate Change
Pollution
UNEP-SBCI
Mandates Overall
UNFCC
Directives Environmental
IPCC
Policies Awareness
International
Green Buildings, USMCA 2008 Beijing
Government
Organizations
Actions
LOHAS Assessment
customers Systems
Voluntary
Creatives Mandatory
True-blue greens Business-case

Green Buildings, USMCA 2008 Beijing
Green Building Assessment Systems

BRE Environment Assessment Method (BREEAM)
World’s first,
BREEAM 2008
Started in 1990
Rating %-age
UK Outstanding 85%
Building Research
BREEAM Bespoke Excellent 75%
Establishment Very Good 55%
BREEAM Courts
Good 45%
(BRE)
BREEAM EcoHomes
Pass 30%
BREEAM EcoHomes XB
Green Buildings, USMCA 2008 Beijing
BREEAM Industrial Voluntary;
BREEAM International Mandatory
BREEAM Multi Residential Pre-construction &
BREEAM Offices Post-construction
BREEAM Prisons Review in
BREEAM Retail BREEAM 2008
BREEAM Schools
London Westminster
BREEAM Excellent

Leadership in Energy and Environmental Design (LEED)
Voluntary, Pre-design
US
Green
Building
Green Buildings, USMCA 2008 Beijing
Council

Comparison of Assessment Systems
Assessment systems are either ……
(1) Point Value based ( LEED, BREEAM, Greenstar etc.)
(2) Life Cycle Analysis (LCA) based (BEES, EcoQuantum etc.)
(3) In between (1) and (2) (CASBEE)
BREEAM 2008
Green Buildings, USMCA 2008 Beijing
LEED-NC

Comprehensive Assessment System for Building
Environmental Efficiency (CASBEE)
Voluntary, Pre & post-design
CASBEE for New Construction(2008)
CASBEE for New Construction(Brief)
Ranks
CASBEE for Existing Building
Japan
CASBEE for Renovation S
Green Building
CASBEE for Heat Island A
Council (JaGBC)
CASBEE for Urban Development(2007) Japan Sustainable B+
CASBEE for an Urban Area+Buildings Building Consortium B-
(e.g. CASBEE Nagoya) C
Green Buildings, USMCA 2008 Beijing
(JSBC)
CASBEE for Home(2007) BEE = Quality / Load
Toyota Headquarter, 2005

Green Building is still not an attractive CleanTech
(…despite the low or negative costs)
Green Buildings, USMCA 2008 Beijing

Growing Green Building (GB) Market
Growth of LEED
•Projects in 69 countries
•Annual market for GB product
& service: $12 Billion (2008)
Growth of CleanEnergy Trio
(solar, wind, biomass)
•20-50% a year worldwide
•~$10 billion by VC firms alone
Green Buildings, USMCA 2008 Beijing
•~$140 billion investment (2007)
China factor
•Urban population 44% in 2006
to 70% in 2035
•20 bil. sqm in next 15 years
(2 bil. sqm annual construction)
•2000-2015, 50% of all new constructions in the world will be in China
•Building+ Building material consumes ~45% of energy at present
•National Project of Building Energy Conservation, by 2010
$400 bil investment to be 50% energy efficient, save 10 m ton coal.

Future Factors
•Future of the World is Urban
( in 2008 first time urban pupulation~50% 60% by 2030 )
• half of the world urban area in 2030 is yet to be built
1 2 3
Mandatory Research New
Policies by Funding in
Green Buildings, USMCA 2008 Beijing
Technology
governments Integrated (Lean
Approach to cement,
Design
UNFCC & LED Lights,
UNEP-SBCI ICT)
ICT: Information and
Communication Technology

Impact of ICT in Greening of Real Estate
-Increasing Efficiency & Dematerialization
-Impact in Transport, Building, Industry & Power (smart grid)
CO2 due to ICT in 2020
Green Buildings, USMCA 2008 Beijing
2002
2020
no reduction
Reduce 5 times
of what it emits
2020
with reduction
reduction by other method CO2 reduction by ICT in 2020
Source & copyright: SMART 2020 The Climate Group

Impact of ICT in Greening of Real Estate
By 2020 (Data source: SMART 2020 The Climate Group)
Energy Efficient Building Design: 0.45 GtC/yr
Building Management Systems: 0.39 GtC/yr
Lighting Automation: 0.12 GtC/yr
Total with other options: 1.68 GtC/yr
(Total with ICT 7.8 GtC/yr)
Green Buildings, USMCA 2008 Beijing
…about $ 340 billion in savings
+
The China factor
How much greening of real-estate happens in China,
the biggest builder in coming decades

Concluding Remarks
COST & Greening of buildings is more of a
ECONOMY safety issue & an economic issue
Key to get to greener buildings
AWARENESS is awareness, mainly of public
To create market &spur innovation
MANDATES &
Green Buildings, USMCA 2008 Beijing
Reduce emission, increase efficiency
INCENTIVES
Assessment systems are good way
ASSESSMENT
to incorporate integrated design
SYSTEMS approach, present with a business
APPROACH case, and achieve real efficiency
while creating awareness and
BUSINESS
spurring cost-effective innovation
CASE

China’s first low energy demo building @Tsinghua University 2005
USMCA 2008
Beijing, China
Wed 22 Oct
pjbaruah@gmail.com
Hearst Tower, NYC
LEED Gold, 2006
Copyright: Michael Ficeto/Hearst Corporation