Richard Lancaster 1 July 2008 A Sustainable Future for Energy Presentation to SPCC Conference
Richard Lancaster1 July 2008
A Sustainable Future for Energy
Presentation to SPCC Conference
1
Electricity in our daily lives
“Electricity is fundamental to the way we live. Without electricity the whole fabric of society would start to break down.”Les Moseley Centre for Disaster Management, UK
2
Electricity Supply ChainFuelis imported from overseas
GenerationPower stations convert fuel into electricity
TransmissionElectricity is transmitted through high voltage lines and converted to lower voltage at substations
Distribution
“We believe that electricity exists because the electric company keeps sending us bills for it, but we cannot figureout how it travels inside wires.”Dave Barry American Humourist
It is then distributed through lower voltage distribution lines
System OperationsMonitor the system and ensure that supply and demand of electricity remain in balance
Customer ServicesElectricity is enjoyed by 5.5 million people
3
Electricity is different from other commodities
• Electricity is fundamental to modern life • Electricity has no readily available substitute • Electricity cannot be stored economically• Electricity supply and demand must be kept in balance at all times or the
system will fail and there will be blackouts• Investments in electricity assets are costly and need to be continually
maintained• Electricity investments can take a decade to build and have lives of
several decades
4
Hong Kong’s Electricity Industry is Unique• Hong Kong is one of the most densely populated
cities in the world with 6,300 people per square km. Small disruptions to the power supply affect large numbers of people
• Hong Kong is 100% dependent on imported energy
• Hong Kong is an international finance centre with 50% of the population living or working above 15th
floor
Highest Net Energy Importers*% of commercial energy use, 2004
1 Hong Kong 100
2 Singapore 99
3 Moldova 98
4 Jordan 96
5 Lebanon 96
6 Morocco 94
7 Israel 92
8 Jamaica 88
9 Ireland 87
10 Belarus 86
11 Portugal 85* Source: The Economist Pocket World in Figures 2008 Edition
5
48%
29%
7%
16%
Oil / Naphtha / Natural Gas
Natural Gas
Coal
Source: Hong Kong Energy Statistics 2006 Annual Report
Nuclear
Electricity Production
Fuel for transportation, towngas, industrial and
other uses
Hong Kong’s Primary Energy Needs
• Fuel for electricity generation and electricity imports account for almost 70% of all energy consumed in Hong Kong
• Hong Kong’s total energy requirement is higher than that of Demark, New Zealand, Ireland or Peru
6
Energy Sources and their Characteristics
Natural gas/ LNG* Lowest-emitting fossil fuel
* Needs infrastructure to transport –pipeline or carrier
* Relatively recent technology
developments have increased demand
Renewable(eg wind, solar etc)* Emissions free
* Requires significant natural resources and landarea
* Inconsistent availability –requiring back-upgeneration from fossil-fuel
Coal* Abundant supply
* Comparatively lower cost
* Higher-emitting fossil fuel
Nuclear* Lower-emitting fuel than coal and gas
* High initial capital cost
* Low fuel cost
* Waste and decommissioning needcareful management
Oil* Relatively lower emissions
than coal but more than natural gas
* Comparatively higher cost
* Increasinglyscarce supply throughout the world
7
Global Energy ChallengeHow to provide energy necessary for social and economic development, yet avoid serious environmental impacts?
8
Reliability of Electricity Supply
• Hong Kong has one of the most reliable electricity systems in the world
Supply interruption frequency(Average number of interruptions per customer per year)
Supply interruption duration(Average minutes of interruptions per customer per year)
9
Overseas Blackout Experiences – 2003
10
China - January 2008Half of China 31 provinces suffered from their worst even power crisis caused by heavy snow
11
• Electricity tariffs account for 1.9% of monthly household expenditure
• Hong Kong’s electricity tariffs among the lowest in major metropolitan cities
020406080
100120140160180200220240
Kuala
Lumpur
Taipei
Shanghai
Jakarta
Vancouver
Shenzhen
CLP Pow
er
Seoul
Singapore
Sydney
Tokyo
Paris
Wellington
Lisbon
Madrid
London
Luxembourg
Brussels
Am
sterdam
New
York
Rom
e
Berlin
Regulated market
Competitive market
Remarks: Comparison based on annual domestic consumption of 3,300 kWh.
Residential Tariff, HK cents/kWh (as of July 2007)
Affordability of Electricity in Hong Kong
12
Affordable and Accessible Electricity for Asia
Taiwan
Australia
India
China
Taiwan
Australia
India
Thailand
China
India
China
AUSTRALIA –Population – 20 millionElectricity access (2005) – 100%GDP per head (PPP) - $29,600
CHINESE MAINLAND –Population – 1,296 millionElectricity access (2005) – 99.4%GDP per head (PPP) – $5,400
HONG KONG –Population – 6.8 milionElectricity access (2005)– 100%GDP per head (PPP) – $24,400
Hong Kong
INDIA -Population – 1,079 millionElectricity access (2005) – 55.5%GDP per head (PPP) – $2,800
Energy prices are international. Affordability and access to electricity are key issues for many Asian countries.
13
Environmental Performance in Hong Kong
Nuclearat Daya Bay
Natural Gasat Black Point
Total Emissions Reduction 1990-2007
NOx
SO2
PM
Total Electricity Demand
74%
57%
76%
82%
0.0
50.0
100.0
150.0
200.0
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
ProjectsC
ompletion
Year
Tota
l Em
issi
ons
(kilo
tonn
e
Secured EnviroCoal
supplyFast Depleting Gas Reserve Completion
of LNG Terminal & Castle Peak
Retrofit
14
Coal 48%
Gas 23%
Nuclear 29%
Mainland China*
Coal78%
Hydro 16%
Nuclear 2%Gas
1%Oil3%
Europe*
Others 4%
Nuclear 29%
Gas 19%
Oil 4%
Coal 29%
Hydro, 15%
* Percentages quoted for fuel combination are 2004 figures Source: International Energy Agency
Japan*
Others 2%
Gas 23%
Oil 12%
Coal 27%
Nuclear 26%
Hydro 10%
North America*
Oil 5%
Gas 17%
Nuclear 18%
Hydro 13%
Others 3%
Coal 44%
CLP(2007)
Others
Fuel Diversification – Fundamental for Energy Security
• A balanced fuel mix is important for supply reliability, stable prices and environmental performance
15
CLP’s Current Environmental Initiatives
• Promoting Energy Conservation and Energy Efficiency
• Meeting 2010 emissions reduction targets set by Hong Kong – Guangdong governments
• Increasing use of ultra-low sulphur coal
• Installing additional emissions control equipment
• Bringing in liquefied natural gas (LNG)
• Renewable Energy Development
• Voluntary target of 5% of generating capacity from renewable energy sources by 2010
• Climate Vision 2050
• Comprehensive set of Initiatives and targets to reduce CO2 intensity
16
Energy Efficiency and Conservation
• Making our own operations energy efficient
• Electricity tariff designed to promote energy conservation
• Community-wide energy conservation programmes:
• Sharing expertise in energy efficiency and conservation with customers:
• Energy audits
• Promoting energy efficient equipment
17
Ultra Low Sulphur Coal
In 2006, CLP consumed ~10% of the world’s entire production of ultra low sulphur coal to meet 2/3 of its total coal requirement
Annual World Coal Production ~ 4,200 million tonnes
Ultra Low Sulphur Coal0.1 - 0.2% Sulphur
99%
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Controlling Emissions from Castle Peak Power Station
• Essentially installing a 12-storey vacuum cleaner into an operating power station
• Some work can only take place during low demand season (i.e. winter)• After several years progress, phased completion starts in 2009• Upon completion, emissions of SO2 and NOx will reduce significantly
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Natural Gas is Crucial to Reliable Electricity Supply and Clean Air• Black Point Power Station (2,500MW) is one
of the largest gas-fired power stations in the world, using natural gas for a decade
• Natural gas contributes 25% of Hong Kong’s electricity supply, addressing electricity needs of about 2 million people
• The existing gas supply to Black Point is from the Yacheng gas field near Hainan Island
• Yacheng gas field will deplete early next decade at the rate needed to meet 2010 emissions targets
• A safe, secure, reliable and robust long-term replacement is urgently needed to refuel Black Point and increase the use of natural gas
20
Environmental Benefits of LNG Further Annual Reduction in Emissions Achievable*
SO2 NOx Particulates CO2
20,000 tonnes(43%)
10,000 tonnes(35%)
748 tonnes (40%)
3 million tonnes(17%)
* The emissions estimation is calculated based on the 2005 average coal results.
1. Air Quality Improvement
2. LNG is also the fastest and the most economic way to significantly reduce CO2 emissions in Hong Kong
50%
100%
150%
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015CO
2 %
of 1
990
leve
l
Coal 25%
LNG 50%
Nuclear 25%
Coal 75%
Nuclear 25%
CO2 emissions without the use of LNG
CO2 emissions with the use of LNG
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CO2 (carbon dioxide) NOx (nitrogen oxide)
Coal 100
Oil 80
Natural Gas 57
Coal 100
Oil 71
Natural Gas 20-37
Natural gas produces no
particulates & SO2
What is LNG?
LNG is natural gas cooled to -162oC
• Changes to a liquid, colorless, odorless and non-toxic
• Reduced to 1/600th of its former volume
• Transported at atmospheric pressure in insulated tanks on ships
• Natural gas is an abundant resource found all over the world and the cleanest fossil fuel available for power generation
22
Worldwide Gas Reserves
White: where the lights are on, satellite imageryBlue Red : Gas resources, with increasing size (USGS)
Source: Program on Energy and Sustainable Development, Stanford University
23
How to Transport the Gas
24
The LNG Supply Chain
Natural Gas Field
Receiving Terminal
Liquefaction Terminal
Marine Transportation
LNG Storage Tank
(for temporary storage)
Black Point Power Station
(for power generation)
Natural gas via pipeline
Sendout LNG by pump
Regasification
25
The LNG Receiving Terminal Project
Marine facilities including a berth, jetty and unloading arms
2 LNG Storage Tanks (with provision for a third tank if needed)
Vaporisers to warm LNG back to its gaseous form
Project lead time : 4 years for construction from time of Government approval
26
Nuclear Energy
• Nuclear power offers the potential for very significant emissions reductions• Technical development could substantially address many of the current
concerns with nuclear power • Nuclear programmes of the future need not be judged in terms of the past
0
200
400
600
800
1000
1200
CoalThermal
LNG CCGT Wind Nuclear
CO
2 em
issi
ons
(g o
f CO 2/
kWh)
Life Cycle CO2 Emissions analysis
Data Sources: Central Research Institute of Electric Power Industry
47%
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Opportunities• Little hydro and biomass resource
• Some reasonably good wind resource available but mainly at hilltops
Constraints• Country Park Ordinance
• Urban areas
• Hong Kong Aviation Height Restrictions
• Wild Animal Protection Areas
• Sites of Special Scientific Interest
• Gazetted Bathing Beaches
• Seawater Intake Points
• Residential and Commercial Premises
• Disneyland Resort Height Restrictions
One big challenge: lack of land resource
Renewable Energy Resources in Hong Kong
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Proposed Offshore Wind Farm Feasibility Study
Location• South Eastern Waters of Hong
Kong• ~9 km east of Clearwater Bay
peninsula
Capacity• Up to 200MW offshore wind
farm (~1.5% of Hong Kong’s electricity capacity)
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CLP’s Regional Renewable Energy PortfolioShandong Changdao, 27.2MW (45%)Shangdong Weihai I, 19.5MW (45%)Jilin Shuangliao, 49.3MW (24.5%)Guangdong Nan’ao, 45MW (25%)Shandong Rongcheng, 48.8MW (24.5%)Australia Woolnorth Bluff Point, 65MW (50%)Australia Woolnorth Studland Bay, 75MW (50%)Australia Cathedral Rocks, 66MW (25%)Shangdong Weihai II, 49.5MW (45%)Jilin Datong, 49.5MW (24.5%)Shandong Guohua, 6 x 50MW (24.5%)Guangdong Hailing Island, 22.1MW (32%)India Khandke, 50.4MW (50%)India Samana, 100.8MW (100%)India Saundatti, 82.4MW (100%)Hong Kong offshore wind feasibility study
Guangdong Huaiji, 105.6MW (84.9%)Sichuan Jiangbian, 330MW (65%)
Australia concentrated solar photovoltaic pilot, 2MW (100%)
WindWind
In operationsUnder construction
Shangdong Boxing, equivalent to 14MW (79%)
SolarSolarHydroHydro BiomassBiomass
30
Biomass in Northern China Boxing Biomass Combined Heat and Power Plant in Shandong (equivalent to 14 MW)
CLP’s first greenfield biomass projectStraw-fired combined heat and power generator
• Electricity – supplies to provincial grid
• Steam – supplies to local paper mills
• Fuel: cotton stalk• Fuel to be collected from local farmers
(renewable energy supply)
(replaces small coal-fired steam boilers)
(new source of income for farmers)
31
Concentrated Solar Technology in Australia
Sunlight concentration by the heliostat-receiver tower (central receiver) set up
[Source: SolarPACES]
Development phase• 2MW pilot plant by 2009• 154MW by 2013
CLP investment• HK$49 million for a 2MW pilot plant• HK$1.9 billion for the complete 154MW project in northern
Victoria, providing electricity for 45,000 familiesDevelopment potential
• deploy the technology into the Asia-Pacific Region in next 10 years
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Climate Change – A Global ProblemIncreasing global average temperature
Rising sea levels
More frequent and severe storms and heat waves
Droughts in some places and flooding in others
Extreme Weather
DroughtRising sea levels
Melting ice cover
3
These threaten the basic elements of life for people around the world – access to water, food production, health and use of land and the environment.
3333
Rise in world’s temperature• >0.5oC until now
• at least another 0.5oC expected in coming decades
The weight of scientific opinion tells us that the world faces the challenge of adapting to serious and irreversible climate changeif global average temperature rises exceed 2 to 3 degrees.
Rise in world’s temperature >2-3oC
Current level of GHG430ppm CO2 equivalent
Climate Change – A Global Challenge
Scenario:> 550ppm CO2 equivalent
34
Stabilising CO2 Emissions in Hong Kong
Data Source: EPD and Company data
0.000
5.000
10.000
15.000
20.000
25.000
1990 1995 2000 2005 2007
Mill
ion
Ton
CO 2
Other Hong Kong*
Fuel SwitchCoal -> Nuclear
Fuel SwitchCoal -> Gas
Limited Gas Supply, Fuel SwitchGas -> Coal
Remarks: * CO2 from other Hong Kong sector reported by EPD was updated to 2005 only+ For data beyond 2010, emission factor of 2007is used for reference and the gas consumption in fuel mix is assumed to be 50%
Beyond 2010+
CLP
Fuel SwitchCoal -> Gas
3535
Each wedges represents 1 billion tons per year reduction in carbon emissions
Energy Efficiency & ConservationShifting to Low Carbon FuelsCarbon Capture & StorageNuclear PowerRenewable EnergyForestry & Agricultural PracticesAlternative Transportation
A number of technological solutions can be implemented in parallel to achieve emissions reductions in the electricity sector.
Stabilising CO2 Emissions Globally Calls for Changes in our Way of Doing Business
There is no single solution. Combination of all “wedges” is required
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75% reductionin order to help stabilise CO2 concentrations below 550ppm, a goal to be achieved internationally by all parties concerned
CLP’s Climate Vision 2050
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CLP’s Initiatives To Achieve Vision 2050
Energy Efficiency & Conservation
Renewable Energy Natural Gas Nuclear Clean Coal
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Meeting energy needs and having a better environment requires sustained and collective effort from every sector of the community
• We need to keep all energy options open – there is no single solution to the world’s energy and climate change challenges
• All countries are different – no single approach will work equally well in every region
• Long term stability, predictability and a clear energy policy will help encourage the investment needed for cleaner energy solutions
• Considerable time will be needed to reduce carbon emissions globally. A sense of urgency must be applied
• Energy conservation and efficiency is an area we can all contribute