Using BIM to achieve zero emissionsIntegrating LCC-analysis and Carbon Footprint accounting

A virtual project

“The Statsbygg approach”

TWN, Washington; september 18. - 21. 2011Øivind Christoffersen

The key to success?

Background

2

• LCC-analyse is an economic method that collocates investment with future expenses for management, operation, maintenance and development (www.lccweb.no, a tool developed by Statsbygg and Forsvarsbygg)

• Carbon Footprint Account makes it possible to calculate life cycle-based GHG-emissions for buildings (www.klimagassregnskap.no , a tool developed by Statsbygg )

It is now a legal requirement in Norway that Life Cycle Costs and environmental consequences must be considered when planning public procurements.

Ca

pita

l co

st

Lifetime

Yearly MOM

Ne

t p

res

en

t v

alu

e

Design and construction

Energy use in operation

Materials production

Transport in operation

An

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co

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Four main principles of the “Statsbygg approach”

3

1.Total economy and environmental impact

2. Combined with our project model

3. Alternative analyses

4. Cooperation across professions

Behovutredning ByggeprogramKontrahering av

radgivereSkisse

prosjektering

Initiering Programfase Forprosjektfase

Prosjektetablering Forprosjekt Detaljprosjekt

Kontrahering av

entrepe...Bygging

Overtakelse avbygg

Tekniskprøvedrift

Over-takelseteknisk

Rekla-masjon

Detaljprosjektfase Reklamasjonsfase

IG1 IG2 IG3 IG4 IG5 IG6 IG7 IG8

DRofus

LCC i prosjektmodellen

DRofus DRofus BIM

Drift

PESRG

BrukerOppdragsgiver

PLSRGPG

PLSRGPG

PLSRGPG

PESRG

EntrepenørE

E

Kostnadsoverslag

konsepter

Kostnadsoverslag

Programestimat Skisseestimat

Kostnadsramme

BIM

TIDA

BIM BIM

TIDA

FDV-dokument

asjon

DRofus DRofus

Byggefase

Tidligfase/konseptvalg

Konsept...

LCC tidligfaseLCC kostnads

overslagLCC Program

estimatLCC

skisseestimatLCC kostnads

ramme

LCCoppdatering

detaljprosjekt

LCCas built

LCCoppdatering

etter 2 års drift

Prosjektfaser

Hovedleveranser

Intern godkjenning

Sentrale roller

Investeringsanalyse

LCC analyse*

IT systemer/kilder BIM

TIDA

PLSRG

PG/Entrepenør

IG1 IG2 IG3

DRofus

Kostnadsoverslag

konsepter

LCC tidligfase

PLSRG

BrukerOppdragsgiver

PE - ProsjekteierPL - ProsjektlederPG - ProsjektgruppeSRG - Tverrfaglig gruppe

* Husleie kan beregnes i alle faser og baserer seg på LCC-analysen. Det er obligatorisk medhusleieberegning ved forprosjekt for prosjekter som er med i husleieordningen. For disseprosjektene er det også vanlig å beregne foreløpig husleie tidligere i prosjektet.

KlimagassregnskapKlimagassregnskap

Klimagassregnskap

Klimagassregnskap

Klimagassregnskap

Klimagassregnskap

Klimagassregnskap

Klimagassregnskap

FV

U

PL

FE

FAFB

FØ

ED

E regionskontor

EF

PE

Strategisk stab

FKKunde

Oppdragsgiver

IKT

Initial phase Pre-project

As-built and 2 years updateLCC & CO2

RoughLCC – calculationCO2 - calculation

Detailed LCC- calculationCO2 - calculation

4

Operation

Detailed LCC- & CO2-documentation

Choice of concept

Alternative analyses Documentation and updating

Empirical data Calculations Real numbers

Planning phase Construction

2 Combined with the project model

Example – alternative analysis

Minimum requirements Passive house

ZEHB

Alternative Investment Annual cost (LCC) GHG-emissions

calculated by www.klimagassregnskap.no*

P50 i MNOK P50 i MNOK Kg CO2/year/m2

Min. req. 380 17 47

Passive house

450 17 23 (-50%)

ZEHB 480 19 19 (-17%)

Example – alternative analyses

6*in this pre-project CO2 was calculated only from energy use for heating, ventilation and cooling in the use-phase

Real pre-project, but slightly fictitious numbers.

• A ‘virtual project’: To project a nearly zero-energy building, in order to gain experiences before actually building.

• A practical exercise for the partners involved

• Cooperation in focus; with the industry and stakeholders.

• Involving and engaging the users of the ‘building’ as early as possible.

• Providing a good web site: concrete illustration of the building and its energy and environmental footprint.

The ‘building’ to gradually emerge – ‘physically’ – on the web site.

A virtual project for zero-energy-buildings Virtually zero and entirely green

Objectives of the project

Provide a knowledge base in order to actually build a Nearly zero-emission building before 2018,by focusing on:

• An innovative concept together with industrial partners (across sectors) and stakeholders

• Cooperation, involvement and transferability• Tools like BIM, GIS, LCC, Carbon accounting• Open, accessible info. during the whole project• Localisation and land-use (local authorities)• Renewable energy supply • Potential exchange with the grid. • Energy metering and management; implementing

advanced tools and engaging the users of the building. • Coherent focus on complete environmental footprint.