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[MUSIC PLAYING]

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SHRADDHA PANDEY: Sustainability,
energy efficiency,

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and green development.

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These are fundamental
to the modern cities

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of today and tomorrow.

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Hi.

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I'm Shraddha Pandey,
and in this video

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I will be discussing about the
role of green building rating

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systems in city
sustainability, by analyzing

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the impact of green
building index, as a system,

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on the future of green
buildings in Malaysia.

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Let us start by understanding
what green buildings are,

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and why rating
systems are important.

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Infrastructure is indispensable
to the growth and development

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of a society.

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And key components
of it are buildings.

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Buildings use energy for
lighting, space, heating,

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or cooling, ventilation,
air conditioning,

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and other electronic and
electrical appliances.

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Collectively buildings
can consume around

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40% of the total energy
around the world,

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including energy usage
during construction,

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as well less in their
operational phase.

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Efficient energy use, and
a conducive environment

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in and around the buildings
is critical to city

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sustainability.

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So what is a green building?

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How is a green building, or
an energy efficient building,

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different from a
conventional one?

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A green building is a building
whose construction and lifetime

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of operation assure the
healthiest possible environment

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by making the most efficient
and least disruptive

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use of land, water,
energy, and resources.

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Some of the features that
define a green building

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include climate responsive
nature of its architecture,

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passive techniques for heating,
cooling, ventilation and day

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lighting, use of renewable
sources of energy,

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efficient and environment
friendly practices

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during construction
and post occupancy,

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use of [INAUDIBLE] materials,
and occupant health, safety,

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and comfort.

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An efficiently
designed green building

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can save up to 30% to
60% energy as compared

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to that by a conventional
building which

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is not environment sensitive.

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LESLIE NORFORD: are an
important part of that,

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particularly in developing
countries where they use maybe

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a third to 40% of
national energy resources,

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and a significantly higher
percentage of electricity,

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over 70% in the US.

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Lighting is a major
energy consumer

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in commercial buildings.

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Another major energy
consumer, particularly

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in tropical areas, where large
numbers of the world's people

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live, is cooling.

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Shading for windows, more
efficient cooling systems,

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and use of what's called natural
ventilation at times of year

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when outdoor conditions permit.

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SHRADDHA PANDEY:
However, if we hope

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to align the benefits
of green buildings

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with the sustainability
of a city

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and optimize energy use
by buildings globally,

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every designer
and developer will

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need to be aware and
work towards creating

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energy efficient buildings.

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Only then shall
[INAUDIBLE] energy saving.

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And that is where the
green integrating systems

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play a very important role.

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They can be used as a tool
to encourage and enforce

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the building of
green structures.

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These may be either in form
of certifications or mandate

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records.

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LESLIE NORFORD:
Now, we might ask

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how the countries
and governments,

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nonprofit agencies, promote the
development of green buildings.

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And two big elements of that are
standards and rating systems.

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And rating systems have
increasingly shown their value

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in many countries
by calling attention

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to the value of green buildings,
and giving building owners,

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building operators clear,
easy to understand targets

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for construction features
and for operation

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of their buildings.

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They're not perfect.

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They tend not to be
overly quantitative.

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And one can get a
good rating, maybe

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in some cases for aspects of the
building that don't necessarily

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save energy but are
important environmentally.

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But their popularity
is hugely important.

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This works well at
city level, and larger.

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People can see that neighboring
buildings are part of this.

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Work in one country can
help, the development work,

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can help make it
easier for neighboring

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countries with similar
climates to do the same.

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SHRADDHA PANDEY: There
are various rating systems

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developed and being followed
in different countries

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around the world.

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While designing green buildings,
the site, surroundings,

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climate, resources, and
building function all

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play a crucial role.

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And thus, every
rating system needs

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to be contextual and unique in
its response to the location,

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climate, and resource
availability of the area

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that it has been designed for.

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Green Building Index
Malaysia, launched in 2009,

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is a green building
rating system

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developed by Malaysian
Institute of Architects

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and the Association of
Consulting Engineers Malaysia.

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It is a comprehensive
rating system

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for evaluating the environmental
design and performance

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of buildings on six main
criterion under seven

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different categories.

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VON KOK LEONG: GBI
is just another tool

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to actually help
to spread awareness

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throughout the country, which
is why we also so formed

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the Malaysia Green Building
Confederation, or MGBC, whose

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role is to actually spread
awareness of sustainability

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throughout the
whole country, not

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just to designers, but to other
stakeholder organizations.

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So we worked together with MGBC
in promoting other areas apart

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from accreditation.

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And we consider that
moving towards green

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is a natural step for
designers to know.

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THIRUKUMARAN
JALLENDRAN: The industry

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is responding in the
manner it should.

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So I'm quite hopeful that
again in the last five years

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we've gone from
0 green buildings

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to about 627 green buildings.

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So that's an indication of
where the market's right now.

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So I'm quite encouraged
with this development.

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And they see that through
GBI, through a green building

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certification, there's value
added to their development,

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to their projects.

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The projects are performing
environmentally better

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than projects which
are not GBI certified.

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That is one.

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Secondly, they also
see the benefits

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through operational savings.

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So they use less energy.

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They use less water,
less utilities.

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They produce less waste.

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GBI boasts to have
successfully achieved

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100 million square feet
of green rated built up

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area in the past five
years in Malaysia.

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As imperative it is to
have a system in place,

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it is equally vital to
comprehend the approach

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and response of the building
developers and designers

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towards it to ensure
that we achieve

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our aim of having more
sustainable green buildings

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in the future.

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GBI takes a holistic approach
and covers many aspects

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that facilitate the design and
construction of an environment

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friendly building, grading
them on a 100 point system.

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To assess the impact
of GBI as a system,

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the criterion on which
the buildings are rated

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was sorted into two broad
categories, short term impact,

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and long term impact.

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The categorization depends
on whether the criterion

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helps keeps the building green
for its expected lifetime.

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Long term impact
criterion are mostly

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part of the physical
structure and design

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of the building itself.

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And their energy benefits can
be gained year after year.

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For example, if skylights are
incorporated in the building

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envelope as a passive
design feature

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to optimize the use of daylight.

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Or if advanced energy
performance measures,

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and innovative
design initiatives

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are included at the conception
and construction phase,

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their benefits last
for a lifetime.

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However, other measures,
like worker side amenities,

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or construction waste
management are also important.

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But these are examples of
short term impact criterion,

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as they do not ensure the
effective energy efficiency

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and environmental gain
repeatedly in the coming years.

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GBI has rated around
300 buildings since 2009

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in Malaysia.

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The study was conducted
for the existing GBI

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non-residential new
construction code.

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It was identified that
out of a total 100,

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57 points account for long
term impact criterion,

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and 43 for short term
impact criterion.

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In the past years,
GBI has certified

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112 buildings in
the NRNC category

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under the four classifications.

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Out of these almost
50% of the buildings

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have applied for and
received green certification

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under the rated classification,
which requires only 50 points,

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suggesting that the
majority of buildings

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aim for and receive this
basic level of certification.

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And it may be important to
note that these buildings can

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acquire 84% of their points
from the short term impact

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criterion.

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It is evident from
the data from GBI

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that these building tend to
acquire points from short term

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impact criterion
more, suggesting

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that most of the
buildings rated green

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would not be very different
from the conventional ones

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during their lifespan.

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So the buildings
may be called green,

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but in reality might not
have the expected impact

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on energy use optimization
in Malaysian cities.

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Also identified
were the criterion

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which seemed to be most
achievable and non achievable

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by the buildings.

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Less than 20% of
the rated buildings

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could achieve few of the major
criterion in the long term

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impact category.

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It is interesting
to see that these

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account for almost 25 points
in the 100 point system.

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And the points achieved by more
than 80% of the rated buildings

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have a substantial share of the
short term impact criterion.

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However, from the examples
of platinum, gold, and silver

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rated buildings,
we see that it is

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possible to achieve better
efficiency within the GBI

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framework.

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To encourage and enforce
that on a larger scale

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a few improvisations
can be made.

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Following are suggestions
specific to GBI existing NRNC

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code.

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Malaysian standard MS
1525 is the Malaysian code

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of practice for energy
efficiency and use

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of renewable energy for
non-residential buildings.

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Compliance to it should be
introduced as a prerequisite

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for a GBI rating.

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Among the points
achieved by buildings,

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the percentage requirement
for long term criterion

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should be specified, making
sure that the buildings achieve

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a balance of both.

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A minimum number of long term
criterion points required

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should be fixed to apply for
silver, gold, and platinum

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certification.

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A few of the
identified criterion

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are vital for human health,
comfort, and environment

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protection, therefore
should be made mandatory

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to apply for GBI certification.

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The weightage of
long-term impact criterion

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can be increased.

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This will reinforce
their importance,

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and higher efforts would be put
by developers to achieve them.

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The number of points allotted
for innovation criterion

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should be increased.

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This encourage designers
to be creative and make

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proper analysis of the
behavior of the designs

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and specifications.

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Innovation should be
encouraged in design,

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rather than just being
limited to technology,

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by equally dividing innovation
points among building design

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features and technology
incorporation.

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Learning the lessons from
the examples of environment

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sensitive buildings in Malaysia,
and looking at their climate

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responsive architectural
design and solutions

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can be one of the most
effective ways of doing this.

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These buildings have been built
for the Malaysian climate,

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with features like solar buffer
effect, solar shading devices,

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day lighting, terraced
gardens, and orientation

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driven ventilation.

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These are a few of the
celebrated environment

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sensitive buildings in Malaysia.

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Encouraging architects
to apply these features

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under innovative
design criterion, which

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promote the use of climate
responsive architecture,

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these suggestions may help bring
about substantial benefits,

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and create more green buildings,
having higher efficiency

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through the green building
index in Malaysia.

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And GBI can become a guiding
tool for buildings in Malaysia

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to sustain their energy
efficient character

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throughout their lifespan.

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In the next 50 years
our energy demands

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globally will be doubled.

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Hence, energy saving has become
the need of the [? Earth. ?]

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Green building rating systems
are the way towards a greener,

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more comfortable, and more
efficient future of our

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build environment.

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By developing more
effective rating systems

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we can ensure the quality
of our build environment,

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and hence, shape a
sustainable future

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for our cities of tomorrow.

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Our future is our
responsibility.

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