economy meets environment – an integrated life cycle approach, h. floegl1 helmut floegl department...

Economy meets environment – an integrated life cycle approach, H. Floegl 1

Helmut FloeglDepartment for Building and EnvironmentDanube University Krems

4th July 2013

Economy meets environment – an integrated life cycle approach

European Real Estate Society 20th Annual Conference 3rd-6th July 2013


The project:LEKOECOS a combined economic-environmental

life cycle model for real estate03-01,2012 to 01-31, 2014

The team:Helmut Floegl, Department for Building and EnvironmentChristina Ipser Danube University KremsSusanne Geissler SERA energy & resources

Vienna, AustriaHildegund Mötzl IBO – Österreichisches Institut für Bauen

und Ökologie GmbH, Vienna, AustriaUlrike Radosch Austrian Energy Agency

Vienna, Austria

The Funding:FFG The Austrian Research Promotion Agency

Haus der Zukunft plus


The combination of economy and environment – two basically different goals of sustainability

Goals of the projectopen accessible easy to use toolfor the calculation of life cycle costs and life cycle environmental impacts

Consistency•combined economic and environmental life cycle calculation model•consistent calculation over the whole life span

Standardised Base•The calculation model ist based on standards to ensure comparable results•supplies standardised parameters

Easiness•Underlying data base•Careful assortment of default values (overwriteable)•Accessibility tools and user interface


LECOECOSECOSOFT•Excel based tool for life cycle assessment for constructions and buildings (IBO)•is used (amongst other things) for the calculation of the OI3-Index •Further development

LIFE CYCLE ASSESSMENT

LEKOS•calculation model for life cycle costs of buildings realised in excel (Floegl – Danube University)•developed 2009 in the research project „Nachhaltig massiv“•further developed to ABK LEKOScommercial life cycle cost tool

CALCULATION OF LIFE CYCLE COSTS


MethodsLIFE CYCLE ASSESSMENT

• Life cycle assessment - LCAISO 14044:2006Environmental management - Life cycle assessment - Requirements and guidelines)

• systematic analysis of the environmental impact of products, services and processes

• during defined stages of life or over the whole life cycle

CALCULATION OF LIFE CYCLE COSTS

• based on Standards: Austrian standard B 1801-2"Object follow-up costs"pr Austrian Standard B 1801-4"life cycle cost calculations"

• Calculation of construction costs and follow-up costs

• during utilisation stages or over the whole life span


Building life cycle costs and resources

Building lifespanBuilding lifespan

Useful life 1Useful life 1 Useful life 2Useful life 2

Life cycle of buildingLife cycle of building

Building life cycle costs (with pre- and post-processes)Building life cycle costs (with pre- and post-processes)

Construction costsConstruction costs Follow-up costsFollow-up costs

C to GateC to Gate

Cradle to GraveCradle to Grave

Cradle to CradleCradle to Cradle

Prod

uctio

n of

build

ing

mat

eria

lsan

d co

mpo

nent

s

Prod

uctio

n of

build

ing

mat

eria

lsan

d co

mpo

nent

s

Recy

clin

g an

dre

cove

ryRe

cycl

ing

and

reco

very

Plan

ning

and

cons

truc

tion

Plan

ning

and

cons

truc

tion

Dem

oliti

on

and

dis

posa

lD

emol

ition

a

nd d

ispo

sal

Com

pleti

onCo

mpl

etion

Refu

rbis

hmen

t

Operation and use


Structure of the results of LEKOS to be applied to LEKOECOS


Costs and environmental impacts in a building’s life cycle

Building life cycle (with pre- and post-processes)Building life cycle (with pre- and post-processes)

Construction costsConstruction costs Follow-up costsFollow-up costs

Environmental impact of shell and modification materials

Environmental impact of shell and modification materials

Environmental impact of transport to site

Environmental impact of transport to siteEnvironmental impact of loss of materials during construction

Environmental impact of loss of materials during construction

LEKOSLEKOS

ECOSOFTECOSOFT

Add-onsAdd-ons

Environmental impact of HVAC materials

Environmental impact of HVAC materials

Environmental impact of disposal and recycling

Environmental impact of disposal and recycling

Environmental impact of modification and refurbishment materials

Environmental impact of modification and refurbishment materials

Environmental impact of energy consumption during operationEnvironmental impact of energy consumption during operation

Environmental impact of servicesEnvironmental impact of services

Prod

uctio

n of

build

ing

mat

eria

lsan

d co

mpo

nent

s

Prod

uctio

n of

build

ing

mat

eria

lsan

d co

mpo

nent

s

Recy

clin

g an

dre

cove

ryRe

cycl

ing

and

reco

very

Plan

ning

and

cons

truc

tion

Plan

ning

and

cons

truc

tion

Dem

oliti

on

and

dis

posa

lD

emol

ition

a

nd d

ispo

sal

Com

pleti

onCo

mpl

etion

Refu

rbis

hmen

t

Operation and use


Environmental impacts of products, processes, and services

Production of materialsProduction of componentsCarriage of goodsPassenger transportationCleaning suppliesEnergy during construction Energy during useDisposal procedure

Production of materialsProduction of componentsCarriage of goodsPassenger transportationCleaning suppliesEnergy during construction Energy during useDisposal procedure

0 G

roun

d1

Gro

und

deve

lopm

ent

2 Bu

ildin

g sh

ell

3 Bu

ildin

g en

gine

erin

g 4

Build

ing

fitou

t 5

Furn

ishi

ngs

6 O

utdo

or fa

ciliti

es7

Plan

ning

ser

vice

s 8

Auxi

liary

ser

vice

s9

Rese

rves

0 G

roun

d1

Gro

und

deve

lopm

ent

2 Bu

ildin

g sh

ell

3 Bu

ildin

g en

gine

erin

g 4

Build

ing

fitou

t 5

Furn

ishi

ngs

6 O

utdo

or fa

ciliti

es7

Plan

ning

ser

vice

s 8

Auxi

liary

ser

vice

s9

Rese

rves

Construction

1 Ad

min

istr

ation

2 Te

chni

cal o

pera

tion

3 Su

pply

and

dis

posa

l4

Clea

ning

5 Fa

cilit

y Se

rvic

es

1 Ad

min

istr

ation

2 Te

chni

cal o

pera

tion

3 Su

pply

and

dis

posa

l4

Clea

ning

5 Fa

cilit

y Se

rvic

es

Repa

irs fo

r2

Shel

l3

Engi

neer

ing

4 Fi

tout

5 Fu

rnis

hing

s6

Out

door

faci

lities

7 Pl

anni

ng s

ervi

ces

8 Re

mov

al9

Rese

rves

Repa

irs fo

r2

Shel

l3

Engi

neer

ing

4 Fi

tout

5 Fu

rnis

hing

s6

Out

door

faci

lities

7 Pl

anni

ng s

ervi

ces

8 Re

mov

al9

Rese

rves

Services Conversion, refurbishment

Environmentally relevantcomponents andservices

Planning and construction Operation and use


Results of the economical-environmental evaluation

Structure of the results LEKOS•Construction costs acc. to Austrian standard B 1801-1 – element classification•Follow-up costs acc. to Austrian standard B 1801-2

Structure of the results LEKOECOS•Combined cost position and environmental impact

Position in accordance with B 1801-1 and 2 Examples Costs GWP

E2.C.04 Floor construction € kg CO2 eq.

F3.1.b Auxiliary power €/year kg CO2 eq./year

F7.1-4.C Repair of façade €/repair kg CO2 eq./repair


Economic-environmental life cycle assessment

Lessons learned

1. In a short-term consideration the goals and demands of economy are widely spaced – considering the whole life cycle of a real estate these goals and demands converge.

2. The LEKOECOS model enables a coordinated optimisation of of economic and enviromental impacts of buildings over the whole life span.

3. methods and tools of an economic consideration can yield important inputs for the environmental consideration and vice versa.

Economy and environment benefit from a combined consideration.

economy meets environment – an integrated life cycle approach, h. floegl1 helmut floegl department...

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