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What are the
    sources of                 What is the
  energy and how               relationship
  do these vary in           between energy
    their global                 use and
      pattern?                  economic
                              development?




  What are the social,    How can energy use
    economic and         be managed to ensure
 environmental issues        sustainability?
  associated with the
increasing demand for
       energy?
Global energy mix is made up of
finite and renewable sources,                The global pattern of energy
which vary in their availability             supply and consumption
over time and space




                        What are the sources of energy and
                         how do these vary in their global
                                     pattern?




                                             The physical, economic and
The availability of finite and               political reasons for the variable
renewable resources in different             pattern of energy supply over
parts of the world                           time and space
Non renewable (finite) energy are     Renewable energy can be
fossil fuels and nuclear fuel. They   used over and over again.
are finite which means that as they   These resources are mainly
are used the supply is reduced.       forces of nature that are
Eventually these resources could      sustainable and that usually
become completely exhausted e.g.      cause little or no environmental
coal, oil, gas                        pollution e.g. HEP, biomass,
                                      wind, solar, geothermal, tidal
                                      and wave
As you can see                                             The USA, Canada,
 MEDC’s have the                                            Greenland, Iceland and
 highest consumption                                        Norway have the highest
 of energy                                                  consumption – over 300
                                                            million kilojoules




                                                                          Exam Tip
                                                                    If asked to describe
Many countries in                                                   you must ‘say what
Africa have the                                                     you see’
lowest                                                              Identify the trend
consumption with
less than 10 million                                                Refer specifically to
kilojoules, including                                               the data
Nigeria, Kenya and
Tanzania
                        LEDC’s particularly in Africa and
                        South-East Asia have the lowest
                        consumption
How do we
explain the energy
       gap?
Wealth


                   The use of energy improves quality
                   of life and people invest in more
                   energy using devices i.e. cars,
                   dishwashers, power showers etc.

                                                        Lack of funds means
                 Every day life                         little investment in
                 relies on energy                       national energy
                 guzzling devices                       supply
Countries are
able to invest
in energy
consuming                    Lack of availability
technology
and industry
                                Poverty deprives
                                people form using
                                modern energy using
                                technology
Cold climates have high
energy usages through
heating
Another key factor affecting global
                              consumption of energy is the
                              availability of fuel. If there is an
                              abundant supply of a fuel type it is
                              likely to be widely used in that
                              region e.g. oil in the Middle East


Globally coal reserves are
depleted, however there are still
abundant reserves in Asia Pacific
where it is a significant source e.g.
China




Natural gas is the man source of
energy in Europe and Eurasia
where there are still large gas
fields in operation
Nuclear power is most important in
                 Europe, Eurasia and North America,
                 particularly in countries like France
                 who do not have any significant
                 reserves of fossil fuels. Nuclear is
                 not available in the Middle East




HEP is most important in South and
Central America (Ecuador). It
contributes less than 1% in the
Middle East as there are no river
systems to sustain it.
The demand for energy has   Demand has grown had
grown over time             countries become more
                            developed and more energy
                            is needed for industrial and
                            domestic purposes


                                                    Fossil fuels dominate
                                                    the global energy
                                                    situation (over 80%)

                                                    HEP and nuclear
                                                    account for a much
                                                    smaller proportion
                                                    (around 6%)


                                              Nuclear
                                              HEP

                                                Renewables account for a
                                                smaller proportion and are
                                                not well documented
•Global primary energy demand is expected to
increase by at least 50% between 2006 and 2030
•This is an annual increase of 1.6%
•More than 70% of this increase will come form
developing countries
•30% will come form China alone
Increasing National Wealth
Technological development                                     •Average incomes increase
•Nuclear energy has only been available since 1954            •Living standards improve
•Oil and gas con be extracted from much deeper locations      •Increasing use of energy
•Renewable technology is steadily advancing                   •Increasing use of greater
                                                              variety of energy sources
Changes in demand
•Change from coal to gas as Britain’s main energy          Changes in price
source
                                                           •The relative prices of
•Recent media attention to green energy                    different types of energy can
                                                           influence demand
 Environmental factors and public opinion                  •Electricity in the UK has
                                                           gradually moved from coal to
 Public opinion can influence decisions made by the
                                                           gas over the past 20 years
 government i.e. Nuclear and HEP in Sweden
                                                           •The recent rise in oil prices
 People are much better informed about the
 environmental impact now than they used to be
Deposits of fossil fuels are                           Many renewables depend
only found in certain locations                        upon specific geographic
                                                       locations

 Wind power
                                                             Large power stations
 requires high
                                                             require flat and stable
 average wind
                                                             land
 speeds throughout
 the year



HEP requires certain
physical conditions
                                  Solar power requires sun for
                                  many days a year




                                            Tidal power requires a large
                                            tidal range
More accessible and lowest cost
                   deposits are exploited first

                                                     Onshore deposits are cheaper
When energy costs rise                               then off shore deposits to
companies increase spending on                       exploit, therefore they are
exploration and development                          exploited first




      HEP close to existing
      infrastructure are cheaper to            In LEDC’s Foreign Direct
      build than those in remote               investment is usually needed to
      locations                                develop energy resources
Countries who wish to develop     International Agreements e.g.
nuclear energy require            Kyoto protocol can influence a
permission from the               countries energy decisions
International Atomic Energy
Agency

                                               Legislation on power
                                               station emissions will
                                               favour low polluting
                                               sources e.g. low
                                               sulphur coal


 HEP on international rivers
 may require agreements from
                                Governments may insist that
 other countries
                                the countries energy
                                companies produce acertain
                                proportion of their energy from
                                renewble sources
The energy use and mix
As economies develop there is                associated with a highly
an increased demand for energy               developed economy (UK and
                                             Sweden)




                         What is the relationship between
                           energy use and economic
                                  development?




                                           The energy mix associated with a
Reasons for the differences                country at the lower end of the
                                           energy spectrum of development
                                           i.e India and Mali)
There is a strong positive
correlation between energy use
and economic development.




                                 There are some anomalies.
                                 About 2 billion people around the
                                 world do not have access to
                                 household electricity – adding
                                 these people would only add 1%
                                 to greenhouse gas emissions
As an economy develops greater                  Expansion of manufacturing
amounts of energy are required for                        industry
          many reasons

             Mechanisation of agriculture




            Demands of a
            growing service       Increased freight
            sector                and general
                                  business
                                  transport
Increasing car
ownership




             Higher levels of
             domestic use




                                Expansion of
                                power networks
                                to isolated
                                villages
This case study can be used to demonstrate the relationship between
             energy use and economic development and energy mix


                          s                                           Bec
                  ut of it              Coal industry in             nat ame a
             ing o h have                  decline                      ura
                                                                            l ga net im
      ly runn whic                                                               s in     p
R apid serves ing                                                of                   200 orter o
      re       d                                             2/3                          5       f
 own it a lea e past                                  import
       e
  mad ucer in
               th                                will
                                             UK
                                         the ds
   prod                               20
                                y 20 rgy nee                                           e
                              B
                                     ne                                   ED   C’s th
                               its e                             ma  ny M s under
    Many of th                                             Like nment i               the
                  e coal                                      go ver       re duce
   and nuclea                                                       ure to ollution
  stations ha
                 r power                                     press nt of p             y
 in service f
               ve been            Over the last 15              a mou      by  energ
             or a long            years there has                 ca used ion and
                                                                           ct
  time and w
               ill need            been a modest                    produ mption
                                                                            u
 to be close
              d in the                                                cons
 next decad                       decline in petrol
              e or so                    and a
      and new                                                           Over
                                                                               th
developme
            nt will be
                                      significant                      there e last 15 ye
                                                                               ha             a
       costly.
                                   decline in coal                    in the s been a r rs
                                                                              u se o        ise
                                                                                      f gas
Between ½ and ¾ of oil and gas
                  in territorial waters has been used     90% of Britain’s gas
                  – much of what is left is in small      comes from the North
                  remote locations                        Sea, around 10% from
                                                          Europe's gas network
                                                          and around 2% from
Oil production           The government is trying to      Russia. Gas imports
peaked at the end        encourage development of         will rise in the future
of 1990’a and has        the remaining North Sea
now fallen to about      reserves by:
30% (2 million
barrels a day).          •Giving oil fields left fallow
Natural gas              by large companies to
production has also      smaller companies
fallen considerably.     •The larger fields which
 These trends will       have declined in production
continue into the        and are less profitable to
future.                  large oil companies are
                         taken over by smaller
                         companies
                         •New technologies are
                         being developed
A new generation of nuclear power stations
                          in the UK was looking unlikely until 2005


Due to energy                 The government has to decide whether to let the
concerns such as              nuclear industry gradually run down or build new
falling production in         plants. The Tories are in favour of nuclear power!
the North Sea it is
back on the agenda            Nuclear plants          Environmental
                              take at least 10        organisations e.g.
                              years to plan and       Greenpeace are opposed
9 out of 12 of the UK’s       build                   to nuclear power
nuclear power plants
are due to close in the
next 10 years


Without nuclear power it
may be hard to meet the
UK’s energy demands
At the beginning of the
twentieth century coal mining
  was the countries biggest
 employer employing over 1
        million people
                                         Coal has significantly declined
                                          as it is the dirtiest and most
                                          inflexible of the fossil fuels
      Very little UK coal is exported,       and virtually all of the
      however imports are significant     countries easily accessible
                                             coal has been mined.

   Coal may make a limited
    comeback as clean coal
    technologies have been
developed which are cleaner and
 more efficient than previously
Most HEP
HEP accounts for a very small proportion
                                                             plants are
of UK electricity production
                                                             located in the
                                                             Scottish
                              There aren’t may               Highlands
                              opportunities to increase
Some new plans will           large scale HEP production
go ahead e.g.                 as most commercially
Glendoe in Inverness-         viable and environmentally     If all small-
shire                         acceptable sites are already   scale HEP was
                              in use                         exploited it
                                                             would meet
                                                             around 3% of
                                                             UK’s total
                                                             electricity
                                                             needs
The governments target is to get
                              10% of electricity from renewable
                              sources
Biomass from land fill and
waste combustion accounted                     Wind is the only
for 1.55% in 2003                              significant renewable
                                               resource in the UK

 There have been some
 renewable developments
 •A small geothermal power
 plant in Southampton
 •Increase in solar panels
 •2 wave pwer devices in UK
 and Scotland
The government promotes        Energy companies are obliged
wind power at least partly     generate 4.3% of the energy
to help meet its               requirements through renewables a
commitment to reduce           credit system operates where energy
carbon dioxide emissions       companies can buy credits from ‘green’
                               companies.


    Financial assistance to                          It takes 3 years
    renewable energy                                 to plan and
    companies particularly                           build a wind
    wind farms is around                             farm
    £700 million a year –
    this is expected to rise
    to £1billion a year



    Wind power is
    considered expensive
Microgenerastors produce less
than 50kw


 Small solar
 panels and
 wind turbines
 are becoming
 increasingly                   These devices could
 common                         account for 30-40% of
                                energy production by 2050
Improving quality of life
                                               e.g. less time spent
                                               collecting fuel wood




                                    Empowerment of the poor e.g.
Health improvements e.g.
                                       access to communications
reduction in pollution form
                                      helps poor people be better
indoor cooking and drugs
                                     informed and more educated
   can be kept under
       refrigeration



                                        Improving the
      Increased productivity and       environment e.g.
      income e.g. increasing the     reducing use of toxic
    length of the working day and        biomass and
            mechanisation                deforestation
The social and economic opportunities
The exploitation of energy
                                        created by the exploitation of energy
resources brings both
                                        resources, including employment,
opportunities for people and the
                                        community development and economic
environment
                                        sustainability




                         What are the social, economic and
                         environmental issues associated
                          with increasing energy demand?




  The problems created by the exploitation
  of energy resources for people and the
  environment, including conflicts with
  indigenous populations, economic issues
  and environmental degradation
Build more power stations
                                 New sources of power may be
    and extending electricity
                                 needed if existing sources reach
transmission corridors – may
                                 their upper limits – may be
      adversely effect the
                                 reliant on imports (UK)
  environment but will create
      jobs and lead to an
  improvement of the quality      High levels of investment may be needed to install
         of life (China)          a modern energy infrastructure. FDI may be
                                  required (Vietnam)

 As the energy
 infrastructure
                                                                    Some
 expands it may
                                                                    countries gain
 encourage the           Initially skilled energy workers           significant
 development of          may be brought in form                     wealth from
 other industries        abroad, however over time the              exporting
 (Egypt – Aswan          skills base in domestic                    surplus
 Dam)                    employment should improve                  energy
                         and boost employment                       (Norway and
                         (Chinese workers in African                Middle East)
                         mines)
Connection to electricity can bring considerable social benefit particularly
in health and education e.g. the ability to refrigerate drugs and teach adult
education in the evenings in schools




A modern energy economy
                                              There are health concerns
allows people to communicate
                                              amongst people living close to
in a wide variety of ways but
                                              nuclear and coal power stations
face-face contact is often
                                              and electricity pylons e.g. child
reduced as a result
                                              leukaemia, cancer, respiratory
                                              programmes (Chernobyl)
Energy infrastructure             Fossil fuel combustion is     Flooding areas
has a significant visual          the main source of the 3      behind HEP
impact – pylons, power            major pollution problems      dams has
stations, wind turbines           (climate change, acid         significant
                                  rain and urban smog –         environmental
                                  Shanghai)                     impact (Aswan
                                                                Dam) particularly
                                                                in forested areas
Emissions from                                                  as this results in
transportation                                                  the release of
increase rapidly                                                methane
as an economy
develops – China           Increasing demand for         Oil spills can occur from
and India                  firewood leads to             wells, pipelines and along
                           deforestation and can         tanker routes (Nigeria
                           lead to desertification in    and USA)
                           semi-arid areas
                           (Nigeria)
This case study demonstrates the social and
economic opportunities created by the exploitation
                   of energy
Less than a third of reserves     The quantity of oil and gas was
    Discovered oil and gas in    have been extracted so the        large and the population small
   Norwegian waters in 1960’s    benefits are set to continue      so the benefits per person have
                                                                   been considerable
Bought economic    Bought some
   and social      problems – mainly              Oil and gas accounts          7th largest
  opportunities    environmental                  for 1/3 of export             producer of oil in
                                                  earnings                      the world
    Oil and gas is Norway’s
    most important industry
                                                                 In the early days Norway was
                                                                 reliant on foreign expertise
Vital to economy   80,000 jobs
                   directly
  25,000 jobs                                              They developed          Norway is
  indirectly                                               hi-tech jobs in         now
                                                           this field and now      considered a
                                                           their knowledge         world leader
                                                           is in demand in         in sub-sea
                                                           other parts of the      technology
                                                           world

                                                            The oil and gas industry has
                                                            boosted innovation and
                                                            technological development in
                                                            other industrial sectors
HEP accounts         Norway has a landscape         Currently has
                        for 99% of           ideal for HEP                  850 HEP plants
                        electricity
                        production.                                         Most potential
                                             Norway is one of the
                        The remainder                                       sites have
                                             cleanest nations in terms
                        comes from                                          already been
                                             of energy use
                        imports                                             exploited

     Norway has a very high standard           Cheap HEP has attracted heavy industries
     of living due to oil and gas              ( aluminium, zinc, fertilizers, ammonia) which
                                               have boosted the economy and created jobs
                                               (cumulative causation)
Incomes are very high    One of the
                         best welfare
 Community               systems in the                      Environmental concerns
 development is a        world
 top priority on                                        Oil and gas
 Norway’s social         This has helped sustain                              Cheap HEP is
                         population in less             sector work s to      attracting more
 agenda                                                 high standards –
                         accessible areas                                     and more heavy
                                                        however offshore      industries
 Revenue from oil and gas has allowed a                 operations pose a
 high per capita spending on sports, youth              maritime risk
 and transport and community facilities in
 urban areas and smaller more isolated
 communities
Looking at solar, wind and
        Renewable Energy Programme                biomass opportunities


Reduce hydropower              Develop undersea
transmission line loss         cable technology




         Oil and gas resources will not last
         forever


                                                     Money is invested abroad – not
   Surplus oil revenues have been                    valued at %150billion
   placed in a Government Petroleum
   fund.
Nigeria is the world’s 6th largest oil         Nigeria exports to USA, Western Europe,
exporter and has the potential to be a         Asia and Pacific, Latin America and Africa
wealth nation like Norway
                                               Oil production is dominated by 5 TNC’s –
Oil was first exported in 1956 and             Shell, Total, Agip, Exxon Mobil and Chevron
Nigeria joined OPEC in the mid 1970’s
                                                  Before oil, farm products such as palm oil
159 oilfields, 275 flow stations, 4500            and cocoa beans accounted for nearly all
miles of pipelines. Many new fields are           of Nigeria’s exports. Today oil make sup
offshore                                          90% of export earnings and 80% of
                                                  revenue
Although it produces a lot of oil its own
refineries are old, poorly run and
frequently break down, so the country             The most populous country in Africa
imports most of its oil. (refined oil can be      (130million) has gone from being self
sol for more money than unrefined oil)            sufficient in food to importing more than
                                                  it produces
The world bank sees Nigeria as a fragile
state because of its failed governance,          This is because the government and
epidemic diseases and the risk of armed          local communities have abandoned
conflict                                         agriculture in pursuit of oil wealth

Quality of life in Nigeria is below all          Corruption siphons off up to 70% of oil
other oil producing nations (resource            revenues
curse). Most Nigerians live on less
than $1 a day
The oil industry was nationalised in   Where has the money gone = ‘cancer of
1971. In a joint venture agreement,    corruption’ and ‘institutionalised looting of
the Nigerian National Petroleum        national wealth’
Corporation (government owned)
owns 55-60% of TNC oil operations
                                       Each one of Nigeria’s 36 states receive a share of
                                       the oil money but trickle down to the poor is limited
Africa’s largest remaining wetland                                     Gas found alongside
                                            Deforestation of
has suffered an environmental                                          the oil is considered to
disaster                                    mangroves for              difficult to difficult to
                                            pipeline routes            transport and sell so is
                                                                       burnt off in huge flares
                        Acid rain from
                                                                       causing acid rain,
                        gas flares
 Oil spills                                  50000 acres               health concerns and
                                             lost 1986 -               environmental damage
                                             2003
                Fish die
                                                                           The gas could be
                                                                           used by local
                                                                           villages for cooking,
                                                                           heating and lighting
                                                                           but it is considered
                                                                           too expensive to
                                         Construction has taken            build the
                                         place without adequate            infrastructure
6817official oil spills –
                                         environmental impact
probably much higher
                                         studies

                      Federal Environmental            Environmental Impact
                      protection Agency since          Assessments were not
                      1988 – probably corrupt!!        compulsory until 1992
Many local people feel most jobs go
Locals have been                    to the country's ethnic majority
forced to give up fishing           groups who do not come from the
because of reduced fish             delta + a history of ethnic rivalry =
stocks + it is difficult to         conflict
find alternative
employment =                                                        Inadequate
unemployment                                                        investment in
                                                                    schools, hospitals,
                                                                    housing and other
                                                                    infrastructure



Local rebel groups attack the                                 Health problems i.e. typhus
oil industry in outrage or to try
and gain payouts e.g.
Movement for the
                                                Forced to relocate to make way for
Emancipation of the Niger
                                                oil infrastructure – if they refuse to
Delta. Rising tide of violence
                                                move there is often armed conflict
has affected the country’s
                                                to force them to move
financial stability and its
ability to supply oil to the rest
of the world
Managing energy supply is about
balancing socio-economic and           Types of renewable energy
environmental needs. This
requires detailed planning and
management




                        How can energy use be managed to
                              ensure sustainability?




   Germany – meeting energy                   Iceland – geothermal power and
   demands in a sustainable way               HEP
Improved management of energy supplies is vital because:
                                                           Community energy is a
•Fossil fuels are running out                              solution – energy
•Emissions having a negative effect on the environment     produced close to the
                                                           source to prevent energy
•The cost of building large energy installations is high   being lost in transmission




                                Energy management and
                                     conservation

Carbon trading is an
EU policy – heavy                                          British Government
industrial plants                                          promote the use of
have to buy permits                                        visual display
to emit greenhouse                                         electricity metres so
gases over the limit                                       people can see how
they are allowed.                                          much they are using
This could extend to
other organisations
e.g. supermarkets
and banks
Solar

          Wind
                              OTEC
Tidal




Biomass          Geothermal
5th largest
                                                                       consumer of
                                                                       energy in the
                                                                       world




                                                   Developing renewable
                                                   energy is important to
                                                   Germany’s energy security
Apart from coal Germany does                       as well as its ambitions to
not possess and significant                        improve the quality of the
fossil fuel reserves + large                       environment
energy import bill




                Germany is one of the leading countries
                in the world in promoting renewable
                energy. Renewable energy is no an
                important industrial sector
Germany meets 5.7% of its electricity
Germany meets 5% of its                     needs with wind power, with more than
electricity needs with HEP. HEP             18,000 turbines employing 64000
is mainly located in the pre-               people. Germany is now looking to
Alpine region where physical and            construct off shore wind farms to support
precipitation characteristics are           the onshore wind farms.
most favourable
                                            The government has legislated to
                                            promote wind power (Renewable Energy
                                            Sources Act), this means that a minimum
                                            price has been guaranteed for the next
Germany has a $5billion                     20 years for electricity fed into the grid
photovoltaic industry accounting for        and power companies have to take this
52% of the world’s installed panels.        electricity by law.
The largest photovoltaic system is in
Bavaria Solar park in Muehlausen


                                        Bio energy is being explored – Juhnde near
  Only a few regions in Germany         Gottingenis Germany’s first model bio energy
  have potential for geothermal power   village

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Energy revision

  • 1. What are the sources of What is the energy and how relationship do these vary in between energy their global use and pattern? economic development? What are the social, How can energy use economic and be managed to ensure environmental issues sustainability? associated with the increasing demand for energy?
  • 2. Global energy mix is made up of finite and renewable sources, The global pattern of energy which vary in their availability supply and consumption over time and space What are the sources of energy and how do these vary in their global pattern? The physical, economic and The availability of finite and political reasons for the variable renewable resources in different pattern of energy supply over parts of the world time and space
  • 3. Non renewable (finite) energy are Renewable energy can be fossil fuels and nuclear fuel. They used over and over again. are finite which means that as they These resources are mainly are used the supply is reduced. forces of nature that are Eventually these resources could sustainable and that usually become completely exhausted e.g. cause little or no environmental coal, oil, gas pollution e.g. HEP, biomass, wind, solar, geothermal, tidal and wave
  • 4. As you can see The USA, Canada, MEDC’s have the Greenland, Iceland and highest consumption Norway have the highest of energy consumption – over 300 million kilojoules Exam Tip If asked to describe Many countries in you must ‘say what Africa have the you see’ lowest Identify the trend consumption with less than 10 million Refer specifically to kilojoules, including the data Nigeria, Kenya and Tanzania LEDC’s particularly in Africa and South-East Asia have the lowest consumption
  • 5. How do we explain the energy gap?
  • 6. Wealth The use of energy improves quality of life and people invest in more energy using devices i.e. cars, dishwashers, power showers etc. Lack of funds means Every day life little investment in relies on energy national energy guzzling devices supply Countries are able to invest in energy consuming Lack of availability technology and industry Poverty deprives people form using modern energy using technology
  • 7. Cold climates have high energy usages through heating
  • 8. Another key factor affecting global consumption of energy is the availability of fuel. If there is an abundant supply of a fuel type it is likely to be widely used in that region e.g. oil in the Middle East Globally coal reserves are depleted, however there are still abundant reserves in Asia Pacific where it is a significant source e.g. China Natural gas is the man source of energy in Europe and Eurasia where there are still large gas fields in operation
  • 9. Nuclear power is most important in Europe, Eurasia and North America, particularly in countries like France who do not have any significant reserves of fossil fuels. Nuclear is not available in the Middle East HEP is most important in South and Central America (Ecuador). It contributes less than 1% in the Middle East as there are no river systems to sustain it.
  • 10. The demand for energy has Demand has grown had grown over time countries become more developed and more energy is needed for industrial and domestic purposes Fossil fuels dominate the global energy situation (over 80%) HEP and nuclear account for a much smaller proportion (around 6%) Nuclear HEP Renewables account for a smaller proportion and are not well documented
  • 11. •Global primary energy demand is expected to increase by at least 50% between 2006 and 2030 •This is an annual increase of 1.6% •More than 70% of this increase will come form developing countries •30% will come form China alone
  • 12. Increasing National Wealth Technological development •Average incomes increase •Nuclear energy has only been available since 1954 •Living standards improve •Oil and gas con be extracted from much deeper locations •Increasing use of energy •Renewable technology is steadily advancing •Increasing use of greater variety of energy sources Changes in demand •Change from coal to gas as Britain’s main energy Changes in price source •The relative prices of •Recent media attention to green energy different types of energy can influence demand Environmental factors and public opinion •Electricity in the UK has gradually moved from coal to Public opinion can influence decisions made by the gas over the past 20 years government i.e. Nuclear and HEP in Sweden •The recent rise in oil prices People are much better informed about the environmental impact now than they used to be
  • 13.
  • 14. Deposits of fossil fuels are Many renewables depend only found in certain locations upon specific geographic locations Wind power Large power stations requires high require flat and stable average wind land speeds throughout the year HEP requires certain physical conditions Solar power requires sun for many days a year Tidal power requires a large tidal range
  • 15. More accessible and lowest cost deposits are exploited first Onshore deposits are cheaper When energy costs rise then off shore deposits to companies increase spending on exploit, therefore they are exploration and development exploited first HEP close to existing infrastructure are cheaper to In LEDC’s Foreign Direct build than those in remote investment is usually needed to locations develop energy resources
  • 16. Countries who wish to develop International Agreements e.g. nuclear energy require Kyoto protocol can influence a permission from the countries energy decisions International Atomic Energy Agency Legislation on power station emissions will favour low polluting sources e.g. low sulphur coal HEP on international rivers may require agreements from Governments may insist that other countries the countries energy companies produce acertain proportion of their energy from renewble sources
  • 17. The energy use and mix As economies develop there is associated with a highly an increased demand for energy developed economy (UK and Sweden) What is the relationship between energy use and economic development? The energy mix associated with a Reasons for the differences country at the lower end of the energy spectrum of development i.e India and Mali)
  • 18. There is a strong positive correlation between energy use and economic development. There are some anomalies. About 2 billion people around the world do not have access to household electricity – adding these people would only add 1% to greenhouse gas emissions
  • 19. As an economy develops greater Expansion of manufacturing amounts of energy are required for industry many reasons Mechanisation of agriculture Demands of a growing service Increased freight sector and general business transport
  • 20. Increasing car ownership Higher levels of domestic use Expansion of power networks to isolated villages
  • 21. This case study can be used to demonstrate the relationship between energy use and economic development and energy mix s Bec ut of it Coal industry in nat ame a ing o h have decline ura l ga net im ly runn whic s in p R apid serves ing of 200 orter o re d 2/3 5 f own it a lea e past import e mad ucer in th will UK the ds prod 20 y 20 rgy nee e B ne ED C’s th its e ma ny M s under Many of th Like nment i the e coal go ver re duce and nuclea ure to ollution stations ha r power press nt of p y in service f ve been Over the last 15 a mou by energ or a long years there has ca used ion and ct time and w ill need been a modest produ mption u to be close d in the cons next decad decline in petrol e or so and a and new Over th developme nt will be significant there e last 15 ye ha a costly. decline in coal in the s been a r rs u se o ise f gas
  • 22.
  • 23. Between ½ and ¾ of oil and gas in territorial waters has been used 90% of Britain’s gas – much of what is left is in small comes from the North remote locations Sea, around 10% from Europe's gas network and around 2% from Oil production The government is trying to Russia. Gas imports peaked at the end encourage development of will rise in the future of 1990’a and has the remaining North Sea now fallen to about reserves by: 30% (2 million barrels a day). •Giving oil fields left fallow Natural gas by large companies to production has also smaller companies fallen considerably. •The larger fields which These trends will have declined in production continue into the and are less profitable to future. large oil companies are taken over by smaller companies •New technologies are being developed
  • 24. A new generation of nuclear power stations in the UK was looking unlikely until 2005 Due to energy The government has to decide whether to let the concerns such as nuclear industry gradually run down or build new falling production in plants. The Tories are in favour of nuclear power! the North Sea it is back on the agenda Nuclear plants Environmental take at least 10 organisations e.g. years to plan and Greenpeace are opposed 9 out of 12 of the UK’s build to nuclear power nuclear power plants are due to close in the next 10 years Without nuclear power it may be hard to meet the UK’s energy demands
  • 25. At the beginning of the twentieth century coal mining was the countries biggest employer employing over 1 million people Coal has significantly declined as it is the dirtiest and most inflexible of the fossil fuels Very little UK coal is exported, and virtually all of the however imports are significant countries easily accessible coal has been mined. Coal may make a limited comeback as clean coal technologies have been developed which are cleaner and more efficient than previously
  • 26. Most HEP HEP accounts for a very small proportion plants are of UK electricity production located in the Scottish There aren’t may Highlands opportunities to increase Some new plans will large scale HEP production go ahead e.g. as most commercially Glendoe in Inverness- viable and environmentally If all small- shire acceptable sites are already scale HEP was in use exploited it would meet around 3% of UK’s total electricity needs
  • 27. The governments target is to get 10% of electricity from renewable sources Biomass from land fill and waste combustion accounted Wind is the only for 1.55% in 2003 significant renewable resource in the UK There have been some renewable developments •A small geothermal power plant in Southampton •Increase in solar panels •2 wave pwer devices in UK and Scotland
  • 28. The government promotes Energy companies are obliged wind power at least partly generate 4.3% of the energy to help meet its requirements through renewables a commitment to reduce credit system operates where energy carbon dioxide emissions companies can buy credits from ‘green’ companies. Financial assistance to It takes 3 years renewable energy to plan and companies particularly build a wind wind farms is around farm £700 million a year – this is expected to rise to £1billion a year Wind power is considered expensive
  • 29. Microgenerastors produce less than 50kw Small solar panels and wind turbines are becoming increasingly These devices could common account for 30-40% of energy production by 2050
  • 30.
  • 31. Improving quality of life e.g. less time spent collecting fuel wood Empowerment of the poor e.g. Health improvements e.g. access to communications reduction in pollution form helps poor people be better indoor cooking and drugs informed and more educated can be kept under refrigeration Improving the Increased productivity and environment e.g. income e.g. increasing the reducing use of toxic length of the working day and biomass and mechanisation deforestation
  • 32. The social and economic opportunities The exploitation of energy created by the exploitation of energy resources brings both resources, including employment, opportunities for people and the community development and economic environment sustainability What are the social, economic and environmental issues associated with increasing energy demand? The problems created by the exploitation of energy resources for people and the environment, including conflicts with indigenous populations, economic issues and environmental degradation
  • 33. Build more power stations New sources of power may be and extending electricity needed if existing sources reach transmission corridors – may their upper limits – may be adversely effect the reliant on imports (UK) environment but will create jobs and lead to an improvement of the quality High levels of investment may be needed to install of life (China) a modern energy infrastructure. FDI may be required (Vietnam) As the energy infrastructure Some expands it may countries gain encourage the Initially skilled energy workers significant development of may be brought in form wealth from other industries abroad, however over time the exporting (Egypt – Aswan skills base in domestic surplus Dam) employment should improve energy and boost employment (Norway and (Chinese workers in African Middle East) mines)
  • 34. Connection to electricity can bring considerable social benefit particularly in health and education e.g. the ability to refrigerate drugs and teach adult education in the evenings in schools A modern energy economy There are health concerns allows people to communicate amongst people living close to in a wide variety of ways but nuclear and coal power stations face-face contact is often and electricity pylons e.g. child reduced as a result leukaemia, cancer, respiratory programmes (Chernobyl)
  • 35. Energy infrastructure Fossil fuel combustion is Flooding areas has a significant visual the main source of the 3 behind HEP impact – pylons, power major pollution problems dams has stations, wind turbines (climate change, acid significant rain and urban smog – environmental Shanghai) impact (Aswan Dam) particularly in forested areas Emissions from as this results in transportation the release of increase rapidly methane as an economy develops – China Increasing demand for Oil spills can occur from and India firewood leads to wells, pipelines and along deforestation and can tanker routes (Nigeria lead to desertification in and USA) semi-arid areas (Nigeria)
  • 36. This case study demonstrates the social and economic opportunities created by the exploitation of energy
  • 37. Less than a third of reserves The quantity of oil and gas was Discovered oil and gas in have been extracted so the large and the population small Norwegian waters in 1960’s benefits are set to continue so the benefits per person have been considerable Bought economic Bought some and social problems – mainly Oil and gas accounts 7th largest opportunities environmental for 1/3 of export producer of oil in earnings the world Oil and gas is Norway’s most important industry In the early days Norway was reliant on foreign expertise Vital to economy 80,000 jobs directly 25,000 jobs They developed Norway is indirectly hi-tech jobs in now this field and now considered a their knowledge world leader is in demand in in sub-sea other parts of the technology world The oil and gas industry has boosted innovation and technological development in other industrial sectors
  • 38. HEP accounts Norway has a landscape Currently has for 99% of ideal for HEP 850 HEP plants electricity production. Most potential Norway is one of the The remainder sites have cleanest nations in terms comes from already been of energy use imports exploited Norway has a very high standard Cheap HEP has attracted heavy industries of living due to oil and gas ( aluminium, zinc, fertilizers, ammonia) which have boosted the economy and created jobs (cumulative causation) Incomes are very high One of the best welfare Community systems in the Environmental concerns development is a world top priority on Oil and gas Norway’s social This has helped sustain Cheap HEP is population in less sector work s to attracting more agenda high standards – accessible areas and more heavy however offshore industries Revenue from oil and gas has allowed a operations pose a high per capita spending on sports, youth maritime risk and transport and community facilities in urban areas and smaller more isolated communities
  • 39. Looking at solar, wind and Renewable Energy Programme biomass opportunities Reduce hydropower Develop undersea transmission line loss cable technology Oil and gas resources will not last forever Money is invested abroad – not Surplus oil revenues have been valued at %150billion placed in a Government Petroleum fund.
  • 40.
  • 41. Nigeria is the world’s 6th largest oil Nigeria exports to USA, Western Europe, exporter and has the potential to be a Asia and Pacific, Latin America and Africa wealth nation like Norway Oil production is dominated by 5 TNC’s – Oil was first exported in 1956 and Shell, Total, Agip, Exxon Mobil and Chevron Nigeria joined OPEC in the mid 1970’s Before oil, farm products such as palm oil 159 oilfields, 275 flow stations, 4500 and cocoa beans accounted for nearly all miles of pipelines. Many new fields are of Nigeria’s exports. Today oil make sup offshore 90% of export earnings and 80% of revenue Although it produces a lot of oil its own refineries are old, poorly run and frequently break down, so the country The most populous country in Africa imports most of its oil. (refined oil can be (130million) has gone from being self sol for more money than unrefined oil) sufficient in food to importing more than it produces The world bank sees Nigeria as a fragile state because of its failed governance, This is because the government and epidemic diseases and the risk of armed local communities have abandoned conflict agriculture in pursuit of oil wealth Quality of life in Nigeria is below all Corruption siphons off up to 70% of oil other oil producing nations (resource revenues curse). Most Nigerians live on less than $1 a day
  • 42. The oil industry was nationalised in Where has the money gone = ‘cancer of 1971. In a joint venture agreement, corruption’ and ‘institutionalised looting of the Nigerian National Petroleum national wealth’ Corporation (government owned) owns 55-60% of TNC oil operations Each one of Nigeria’s 36 states receive a share of the oil money but trickle down to the poor is limited
  • 43. Africa’s largest remaining wetland Gas found alongside Deforestation of has suffered an environmental the oil is considered to disaster mangroves for difficult to difficult to pipeline routes transport and sell so is burnt off in huge flares Acid rain from causing acid rain, gas flares Oil spills 50000 acres health concerns and lost 1986 - environmental damage 2003 Fish die The gas could be used by local villages for cooking, heating and lighting but it is considered too expensive to Construction has taken build the place without adequate infrastructure 6817official oil spills – environmental impact probably much higher studies Federal Environmental Environmental Impact protection Agency since Assessments were not 1988 – probably corrupt!! compulsory until 1992
  • 44. Many local people feel most jobs go Locals have been to the country's ethnic majority forced to give up fishing groups who do not come from the because of reduced fish delta + a history of ethnic rivalry = stocks + it is difficult to conflict find alternative employment = Inadequate unemployment investment in schools, hospitals, housing and other infrastructure Local rebel groups attack the Health problems i.e. typhus oil industry in outrage or to try and gain payouts e.g. Movement for the Forced to relocate to make way for Emancipation of the Niger oil infrastructure – if they refuse to Delta. Rising tide of violence move there is often armed conflict has affected the country’s to force them to move financial stability and its ability to supply oil to the rest of the world
  • 45. Managing energy supply is about balancing socio-economic and Types of renewable energy environmental needs. This requires detailed planning and management How can energy use be managed to ensure sustainability? Germany – meeting energy Iceland – geothermal power and demands in a sustainable way HEP
  • 46. Improved management of energy supplies is vital because: Community energy is a •Fossil fuels are running out solution – energy •Emissions having a negative effect on the environment produced close to the source to prevent energy •The cost of building large energy installations is high being lost in transmission Energy management and conservation Carbon trading is an EU policy – heavy British Government industrial plants promote the use of have to buy permits visual display to emit greenhouse electricity metres so gases over the limit people can see how they are allowed. much they are using This could extend to other organisations e.g. supermarkets and banks
  • 47.
  • 48. Solar Wind OTEC Tidal Biomass Geothermal
  • 49. 5th largest consumer of energy in the world Developing renewable energy is important to Germany’s energy security Apart from coal Germany does as well as its ambitions to not possess and significant improve the quality of the fossil fuel reserves + large environment energy import bill Germany is one of the leading countries in the world in promoting renewable energy. Renewable energy is no an important industrial sector
  • 50. Germany meets 5.7% of its electricity Germany meets 5% of its needs with wind power, with more than electricity needs with HEP. HEP 18,000 turbines employing 64000 is mainly located in the pre- people. Germany is now looking to Alpine region where physical and construct off shore wind farms to support precipitation characteristics are the onshore wind farms. most favourable The government has legislated to promote wind power (Renewable Energy Sources Act), this means that a minimum price has been guaranteed for the next Germany has a $5billion 20 years for electricity fed into the grid photovoltaic industry accounting for and power companies have to take this 52% of the world’s installed panels. electricity by law. The largest photovoltaic system is in Bavaria Solar park in Muehlausen Bio energy is being explored – Juhnde near Only a few regions in Germany Gottingenis Germany’s first model bio energy have potential for geothermal power village