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By: ,

By: ,

17th INTERNATIONAL CONFERENCE & EXHIBITION

ON LIQUEFIED NATURAL GAS (LNG 17)

Introduction of South Hook Combined Heat &

Power (CHP) OpportunityDavid P. O’Brien

ExxonMobil Gas & Power Marketing

April 2013

17th INTERNATIONAL CONFERENCE & EXHIBITION ON

LIQUEFIED NATURAL GAS (LNG 17)


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Presentation Outline

• What is CHP?

• South Hook History

• South Hook CHP Concept

• Conclusions


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CHP = Combined Heat & Power

• Same as “cogeneration”

• Uses energy that wouldotherwise be wasted fromthermal power production

• CHP contributes 11% of

electric power in Europe,8% in the United States

ExxonMobil LaBarge CHP

Wyoming, USA (100 MW)


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• Energy efficiency

• Emissions reduction

• Operating cost savings

• Reliability improvement

CHP Offers Many Advantages

ExxonMobil Beaumont CHP

Texas, USA (~500 MW)


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• Brownfield construction

• Location dependent onsite heat demand

• High capex vs stand-alone gas power plant

• Requires stableregulatory framework

…..CHP also has challenges

ExxonMobil Antwerp CHPBelgium (125 MW)


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South Hook LNG Terminal History

• Located on MilfordHaven in Wales

•South Hook Terminalfully commissioned in2010

• Joint venture with Qatar

Petroleum International,ExxonMobil, Total


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Current Terminal Operation

• South Hook is a conventional LNG receiving and

regassification terminal• Warm water, heated by fuel gas, is the medium

for heat transfer in the vaporisers


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South Hook CHP Concept

• Residual heat from a gas-firedcombined cycle plant could beused for LNG vaporisation


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SHCHP - High Efficiency

•Heat from combustion used 3 times

– Gas turbine generates power

– Steam turbine generates power

35% 20%

15%

35% for Gas

Turbine

Power

20% for

Steam Power

30% for LNG

Vaporization

15% WasteHeat

– Hot water vaporizes LNG30%

• CHP efficiency ~ 85%

LNG

Vaporizers


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0%

100%

Coal Fired Power

Plant

Combined Cycle Gas

Turbine

South Hook CHP

Thermal EfficiencySHCHP – Low Emissions

0.0

1.0

Coal Fired Power

Plant

Combined Cycle Gas

Turbine

South Hook CHP

Tonnes CO2 per Megawatt-Hour

Source: ExxonMobil Analysis


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Gas for Power Growing Rapidly

Source: ExxonMobil 2013 Outlook for Energy

0

100

200

300

400

500

600

2000 2010 2020 2030 2040

Gas Demand By Sector

BCFD

ElectricityGeneration

Industrial

Res/Comm

Transportation


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Conclusions

• Gas plays a critical role in power generation

• CHP can further extend the environmental

benefits of gas-fired power generation

• Strong partnerships are key to identifying

innovative opportunities like South Hook CHP


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05 05 david obrien presentation

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