Ecocem green economyexpopresentation 20may-ver2a

The significance of Embodied CO2 Ecocem Ireland Ltd

CO2 in construction

Embodied CO2 emissions = arising from creating maintaining and demolishing the asset

Operational CO2 emissions = arising from using the asset

+ =Operational

CO 2

Embodied CO 2

Tota

l

CO 2

Ref: S. Sturgis & G. Roberts, “Redefining Zero: carbon profiling as a solution to whole life carbon emission measurement in buildings”, May 2010, RICS Research

SEAI Mission

“To play a leading role in transforming Ireland into a society based on sustainable energy structures, technologies and practice”

The SEAI strategy to date is focused on operational CO2

SEAI Strategy

Ref: SEAI - 2010-2015 strategic plan

SEAI Strategy

SEAI strategy is subdivided in 5, 15 & 25 year horizons

Building materials are only referenced in the 25 year strategy:• “All buildings at least energy self-sufficient. Building

materials [to] have minimal environmental impact”

This should be part of the current 5 year strategy

Ref: SEAI - 2010-2015 strategic plan

Embodied CO2

Embodied CO2 of the built environment is 11% of global annual emissions (approximately 3 billion tonnes).

The embodied CO2 used to create a building may be as high as 62% of its total whole life emissions.*

Success in reducing operating CO2 has raised embodied CO2, relatively and absolutely.

A reduction in Embodied CO2 has an immediate benefit in tackling Climate Change.

Ref: S. Sturgis & G. Roberts, “Redefining Zero: carbon profiling as a solution to whole life carbon emission measurement in buildings”, May 2010, RICS Research

Ref: SEAI “ A Guide to Building Energy Rating (BER)”Ref: PM Group: “Embodied CO2 of housing construction in Ireland” - Architecture Ireland – Jan/Feb 2010

Impact of building regulations on operational/embodied CO2

B2 Rat

ing

(200

8 Reg

ulatio

ns)

A1 Rat

ing

2013

Reg

ulatio

ns0

20

40

60

80

100

120

140

160

Embodied CO2Operational CO2

CO2(tonnes)

CO2 in construction

Typical different whole life carbon splits for different types of buildings

40%

60%

Warehouses

55%

45%

Offices

80%

20%

Supermarket

70%

30%

Houses

Embodied CO2

Operational CO2

Ref: S. Sturgis & G. Roberts, “Redefining Zero: carbon profiling as a solution to whole life carbon emission measurement in buildings”, May 2010, RICS Research

CO2 in construction

Typical different whole life carbon splits for different types of buildings – in 10 years time

Embodied CO2

Operational CO2

5%

>95%

Warehouses5%

>95%

Offices

5%

>95%

Supermarket5%

>95%

Houses

Ref: S. Sturgis & G. Roberts, “Redefining Zero: carbon profiling as a solution to whole life carbon emission measurement in buildings”, May 2010, RICS Research

Case Study: 3-bed semi detached house

ref: PM Group: Embodied CO2 of housing construction in Ireland Architecture Ireland – Jan/Feb 2010

Concrete accounts for 55% of embodied CO2 of a typical 3 bed semi-detached house

Embodied CO2

3 bed Semi Detached House

Original Embodied CO2

(38.7 tonnes)Reduced Embodied CO2

(25.8 tonnes)

ref: PM Group: “Embodied CO2 of housing construction in Ireland” - Architecture Ireland – Jan/Feb 2010

Reduction in Embodied CO2 through the use of GGBS

Two simple points

In construction, concrete is the main contributor to embodied CO2

Cement + GGBS is the best available technology to reduce embodied CO2 in construction.

What is GGBS cementGround Granulated Blastfurnace Slag

Steel Manufacture Water to make GBS

GBSGrind to make GGBS

Store GGBS for distribution

GGBS Manufacture

GGBS and the Environment

CO2 emissions for cement and GGBS production

Portland Cement GGBS0

100

200

300

400

500

600

700

800

900

Generation of Electricity Used

Fossil Fuel Use

Process Emissions

kg

per

Ton

ne o

f O

utp

ut

Ref: British Cement Association – Fact Sheet 18 [1]

Typical CO2 Emissions for Portland Cement and GGBS Production (Figures in kg per tonne of output)

GGBS and the Environment

Typical Energy usage for Portland Cement and GGBS Production

Portland Cement Ecocem GGBS0

200

400

600

800

1000

1200

1400

1600

1486

152

Energy (Kwh)

KW

H h

ou

rs p

er

ton

ne

of

ou

tpu

t

Ref: E. Kennedy, The Integration of the Measurement of Energy Usage into Road Design, National Roads Authority, Dublin. 2006

GGBS and the Environment

Energy Usage in Barrels of Oil for Portland Cement and GGBS production

Portland Cement Ecocem GGBS0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

0.87

0.09

Barrels of Oil Equivalent

Nu

mb

er

of

Ba

rre

ls o

f O

il

Industry sector 2030 cost curve

Ref: SEAI - “Ireland’s Low Carbon Opportunity” – July 2009

≈ 300,000 tonnes

Industry sector 2030 cost curve

Ref: SEAI - “Ireland’s Low Carbon Opportunity” – July 2009 – amended by Ecocem

Further opportunity to increase CO2 abatement at negative cost

≈ 600,000 tonnes

Increases abatement potential up to 2.3m tonnes

15% increase

Financial effects

1. Value of €35/tonne CO2 derived from EU Directive 2009/33/EC Promotion of Clean Energy Efficient Road Transport Vehicles and UK Government Climate Change Act 2008 – Shadow Price of Carbon

2. OECD “Ancillary benefits and costs of GHG mitigation: Policy Conclusions” ENV/EPOC/GSP(2001)13/FINAL, April 2002

3. Based on a price of $80/barrel

4. Based on quarrying cost of €10/tonne.

Financial effects of 600,000 tonne CO2 abatement

Environmental Saving/Benefit Value of Savings

CO2 emissions (t) 600,000 €21,000,0001

Other pollutants (t) 6,299 €8,400,0002

Energy (MWh) 993,865 €38,117,4553

Unused quarry stone(t) 1,177,914 €11,779,1404

Realising the Opportunity

Green Procurement Policy National Action Plan

Green Procurement in private sector

Green design

Green specification

Green Procurement

OperationalEmbodied

Towards ZeroCarbon

BER SchemeBuilding Regs updates

• Green Procurement• Green Design• Green Specification

Realising the Opportunity

Structure

Cladding

Finishes

Heating

Lighting

Cooling

OperationalEmbodied

Towards ZeroCarbon

BER SchemeBuilding Regs updates

• Embodied Energy Scheme

Realising the Opportunity

Structure

Cladding

Finishes

Heating

Lighting

Cooling