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Comparing Technologies for Cost- Effective Emission Reduction . Colin Scoins, Director of Development, Generation, E.ON UK British-Norwegian CCS Workshop, 23 rd April, London . Climate challenge. IEA 2006 default policy scenario .

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comparing technologies for cost effective emission reduction

Comparing Technologies for Cost- Effective Emission Reduction

Colin Scoins, Director of Development, Generation, E.ON UK

British-Norwegian CCS Workshop,

23rd April, London

climate challenge
Climate challenge

IEA 2006 default policy scenario

  • By 2030 Global CO2 emissions will be 70% higher than they are today
  • We must find ways to curb emissions growth from the developing world

Introduction to CCS April 2008 Clean Coal

e on is committed to reducing its co 2 emissions
E.ON is committed to reducing its CO2 emissions

E.ON’s specific CO2 emissions

in t/MWh

  • Involves all technologies (with major renewables investment)
  • Internal modelling suggests CCS is needed (post 2020) in all scenarios
  • If there is no significant nuclear build, CCS becomes a major part of the portfolio.

0.72

- 50 %

0.49

~ 0.36

1990

2006

Target

2030

  • 50% reduction of CO2 emissions compared to 1990 baseline
  • Reduction of CO2 emissions down to 0.36 t/MWh by 2030

Introduction to CCS April 2008 Clean Coal

slide4

The UK Generation Capacity Problem

  • By end 2015 the UK will see ~23 GW of plant closures (LCPD and nuclear life expiry) – 30% of UK capacity. Further nuclear closures likely 2016-2020
  • With no new build, demand may exceed supply in winter peaks ~ 2011
  • Purely building CCGTS is not an option
    • UK will not meet long term CO2 emission targets
    • UK will be>75% gas dependent.
  • Must remember new build stations will last ~40 years

E.ON graph based on NGT 7 year plan

  • 23 GW of generating plant will need to be replaced by 2015

Introduction to CCS April 2008 Clean Coal

e on is active across a across all areas
E.ON is active across a across all areas

Renewables

Better Fuel use

  • Wind
  • Hydro
  • Biomass
  • Enhanced Efficiency
  • CHP
  • Micro-CHP

Demand Reduction

    • Carbon Capture
  • and Storage
    • Nuclear

New Large Scale Generation Technologies

  • Energy efficiency
  • Insulation
  • Smart metering

Introduction to CCS April 2008 Clean Coal

mckinsey view of abatement technologies
McKinsey view of abatement technologies
  • CCS is in the mix with other needed carbon abatement methods
  • CCS costs will fall as the technology matures

Introduction to CCS April 2008 Clean Coal

no one technology is a winner
No one technology is a winner

Security of

Energy Supply

Affordability

£/MWh

CO2 emissions

t/MWh

Other risks

Lifecycle

Output

0.39

Proven

technology

Limited

reserves & number

of regional fuel suppliers

0.38

CCGT

?

Developing technology

- technical risk

0.04

CCGT + CCS

Very large reserves in

liquid global market

0.70

Proven

technology

0.76

Supercrit

?

0.09

Developing technology

- technical risk

Coal + CCS

Free fuel but

intermittent output

Proven Technology,

limited site availability

0.01

0

Onshore Wind

Developing technology

- technical risk

0

0.03

Offshore Wind

Public acceptability

Low cost fuel

from stable sources

0.02

0

Nuclear

Demand reduction will

bolster security of supply

Often just the cost of

mobilisation

-x

-x

Mobilisation is the

primary hurdle

Energy

Efficiency

  • We need a range of technologies and one of them is CCS

Introduction to CCS April 2008 Clean Coal

slide8

The Case For Carbon Capture and Storage

1

CO2 Reductions

  • Reduces fossil fuel plant emissions by 90%
  • Applicable to coal based economies such as India and China which are driving world emissions growth.

2

Security of Energy Supply

  • Coal based CCS gives security of energy supply, coal can be stored & freely traded
  • Coal+CCS allows the continued burning of coal in a carbon constrained world
  • Only option for a baseload fossil-fuelled future

3

Affordability

  • CCS carries a cost penalty over unabated plant
  • Cost competitive form of carbon abatement
  • CCS is vital to solve the global trilemma

Introduction to CCS April 2008 Clean Coal

3 different ccs technologies under development

FutureGen

OxyCoal

CASTOR

3 different CCS technologies under development

1

Pre Combustion Capture (IGCC1)Coal gasification, CO-shift, hydrogen production and hydrogen combustion in a H2 gas turbine

2

Oxyfuel Burning fossil fuels in oxygen (and recycled flue gas)

3

Post Combustion CaptureCO2 capture from power plant flue gas (scrubbing process)

Introduction to CCS April 2008 Clean Coal

1-Integrated Gasification Combined Cycle

post combustion capture
Post Combustion Capture

Chilled Ammonia

  • Innovative post combustion capture technology using chilled ammonia
  • Cooperation between E.ON Nordic and ALSTOM
  • Pilot Plant in Karlshamn Power Station
  • Flue Gas (7,5 MWth) of an oil-fuelled Aux. Boiler
  • Total Budget: ~7Mio. €
  • Start-of-Operation mid 2008

Small Scale amines

CASTOR/CESAR

European consortium testing post combustion technologies at an existing coal fired power plant (1 t CO2/h, different solvents, maintenance and material costs)

CATOTesting of post combustion technologies at existing coal fired power plant, solvent tests, membrane contactors, start of operation mid 2008

Projects have also been announced with Siemens and Hitachi

Introduction to CCS April 2008 Clean Coal

pre combustion capture projects igcc

FutureGen

  • Public-private partnership to build a 275 MW IGCC plant with CCS
  • Multiple site and CO2 sink options still being considered.
  • All sinks are onshore saline aquifer formations
  • Project currently under review due to funding issues

Killingholme, E.ON UK

  • Single unit IGCC+CCS, net output estimated at 370 MW
  • Pre-FEED study completed Sept 07
  • Highly promising net efficiency of circa 36-37%
  • 90% CO2 capture is achievable
  • Ideal storage sites identified in depleted gas fields in SNS
  • Development currently suspended due to the UK Government’s decision to fund only post-combustion CCS

COORIVA

  • E.ON is involved in the EU-funded COORIVA FP6 project which is looking at solutions for the development of an IGCC power plant demo project (CO2 capture, “State of the art IGCC full scale technology”, H2 turbine, coal gasification and gas treatment)
Pre Combustion Capture projects (IGCC)

Introduction to CCS April 2008 Clean Coal

oxyfuel combustion projects full scale single burner
Oxyfuel Combustion projects- Full scale single burner

Full Scale burner

Oxyfuel UK Phase II-

  • Innovative 40MWth oxycoal Doosan Babcock burner test rig
  • Operational 2008/9
  • E.ON will have access to tests and significant budget to monitor them
  • 1 MWth E.ON test rig at Ratcliffe, UK will underpin the large scale testing by studying deposition and corrosion

Small Scale Oxyfuel projects

ADECOSDevelopment of components for an coal/lignite fired power plant with O2/CO2 atmosphere (burner, CO2 capture, preparation pilot plant)

Oxycoal AachenComponent development for a coal fired power plant with O2/CO2 atmosphere (high temperature membrane for air separation, burner, turbo components)

Introduction to CCS April 2008 Clean Coal

e on progressive deployment vision

Studies, Tests

Design & Construction

Operation

E.ON Progressive Deployment Vision

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

New solvents& processes

Small innovative pilot 1 MW

Post Combustion

Large innovative pilot 30…60 MW

Feasibility

300 MW Amine scrubber UK

FutureGen 275 MW US

Pre Combustion

ADECOS Pilot

OxyfuelTechnology

Laboratory

OXYCOAL 10 MW

CCS Projects & Pilot

CO2 Storage

Screening

Exploration

  • The deployment vision will enable E.ON to roll out CCS in 2020
  • By 2020 the EU ETS price needs to be high enough to drive investments in CCS

Introduction to CCS April 2008 Clean Coal

uk government competition for subsidy
UK Government Competition for Subsidy
  • To support CCS, HMG have launched a Competition for Subsidy
  • HMG will support up to 100% of the capital and operating cost of the CCS demo.

Demo plant support criteria:

  • 300MW scale, Operational by 2014
  • Utilise post-combustion capture on a supercritical coal plant
  • Store CO2 offshore in UK waters

Timescales

  • HMG competition will accelerate the development of CCS
  • Hopefully funding from other MS/ EU Commission will be forthcoming

Introduction to CCS April 2008 Clean Coal

large scale post combustion capture entry into uk government ccs competition
Large scale post-combustion capture entry into UK Government CCS Competition
  • Up to 300MWe amine scrubber fitted to one of the planned 2x800MW supercritical coal-fired units at Kingsnorth
  • Capturing circa 2.5Mt/y CO2
  • CO2 storage in the Southern North Sea
  • Offshore pipeline transport
  • If bid successful, project operational 2014 at the earliest
  • Kingsnorth could be capturing and storing CO2 by 2014

Introduction to CCS April 2008 Clean Coal

conclusion
Conclusion
  • We need a range of technologies to meet our CO2 reduction challenge
  • CCS is one of the key tools in that armoury
  • Too early to choose the winning CCS technology

Introduction to CCS April 2008 Clean Coal