Taller Nacional de Arquitectura | Quito | March 2013 | Walter Grondzik SUSTAINABILITY.

Taller Nacional de Arquitectura | Quito | March 2013 | Walter Grondzik

SUSTAINABILITY


El Clima de Quito: un Dia de 4 Estaciones

Energy

Equity

Ethics


China

energy efficiency !

we must be careful with our words


Sustainability: Ability to design projects that optimize, conserve, or reusenatural and built resources, provide healthful environments foroccupants/users, and reduce the environmental impacts of buildingconstruction and operations on future generations through means such ascarbon-neutral design, bioclimatic design, and energy efficiency.

evolution of a

criterion











“ sustainability “


“Sustainability is not a destination,

but a journey.”

I hope NOT –

but without truly understanding the destination the journey may well be

interminable

An example of knowing the destination follows



Buildings are the major source of global demand for energy and materials that produce by-product greenhouse gases (GHG). Slowing

the growth rate of GHG emissions and then reversing it is the key to addressing climate

change

and keeping global average temperature below 2°C above pre-industrial levels.

INTENT <BENCHMARK>


The 2030 Challenge … to adopt the following targets:

All new buildings, developments and major renovations shall be designed to meet a fossil fuel, GHG-emitting, energy consumption performance

standard 60% below the regional average/median for that building type.

At a minimum, an equal amount of existing building area shall be renovated annually to meet a fossil fuel, GHG-emitting, energy

consumption performance standard of 60% of the regional average for that building type.

The fossil fuel reduction standard for all new buildings and major renovations shall be increased to:

70% in 2015 80% in 2020 90% in 2025

Carbon-neutral in 2030 (using no fossil fuel GHG-emitting

energy to operate).

CRITERIA


These targets may be accomplished by implementing innovative sustainable design

strategies, generating on-site renewable power and/or purchasing (20% maximum)

renewable energy.

METHODS


Back to “sustainability”






ASHRAE Guideline 32-2012:

Sustainable, High Performance Operations & Maintenance

1. PURPOSE: The purpose of this guideline is to provide guidance on optimizing the operation and maintenance of the building to achieve the

lowest economic and environmental life cycle cost, without sacrificing safety or

functionality.



In My Humble Opinion … DESIGN PROFESSIONALS

should NOT use the word “sustainable”

as an adjective to describe buildings,

systems, features, components

UNLESS – “sustainable” has been

benchmarked by a clear and verifiable

criterion


Use “sustainable” in a meaningful way!

A suggested starting point …


SUGGESTED USAGE

Energy efficient:Use this term only to describe a building thatexceeds the minimum requirements of theprevailing energy efficiency code


Green:Use this term only to describe a building that reduces negative site/global environmental impacts by constraining energy, water, and materials consumption

SUGGESTED USAGE


Net-zero energy:Use this term only to describe a building that annually produces on site, from renewables, as much energy as it consumes

?? ….. BUT ≠ green

SUGGESTED USAGE

site | source?

boundaries?


Carbon neutral:Use this term only to describe a building that produces no net negative carbon dioxide emissions by addressing the use of energy and materials

?? ….. BUT ≠ green

SUGGESTED USAGE

site | source?

boundaries?


Sustainable:Use this term ONLY to describe a building that produces no net negative site/global environmental impacts by very seriously addressing energy, water, and materials consumption

?? ….. BUT >> green

SUGGESTED USAGE


Regenerative:Use this term only to describe a building that produces net positive site/global environmental impacts by very seriously addressing energy, water, and materials consumption

?? …. BUT >> green

and also

> sustainable

SUGGESTED USAGE


A PLEA

Important words MUST mean something …

especially for professionals.

Let’s make this happen. Don’t use or allow

others to use the term sustainable as an

adjective unless such use is

documented as valid.

“Sustainable features” must go.


Use good design moves, green technology, net-zero approaches to

achieve sustainable performance … and

appreciate that this discussion has addressed only one of three spheres of

sustainability


OUTCOMES

?


what is

the

right t

hing to

do?


desig

n?


tech

nology?


equity

?


Good design

Energy efficient

Better design

Green

Excellent design

Sustainable

Exceptional design

Regenerative

Net-zero energy Carbon-neutral

clie

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| oc

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nts

| c

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Taller Nacional de Arquitectura | Quito | March 2013 | Walter Grondzik SUSTAINABILITY.

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