Energy Systems and Technologies for the Coming Century ...

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Dong Energy's 85/15 strategy for the conversionto 85% renewableAuthor: Charles Nielsen, DONG EnergyAbstractDONG Energy is one of the leading energy groups in Northern Europe. The company isheadquartered in Denmark and the business is based on procuring, producing,distributing and trading in energy and related products in Northern Europe.DONG Energy has a vision to provide clean and reliable energy and it is expressed as85/15 strategy because of the ambition to change the share of CO 2 -emitting heat andpower production in 2006 from 85% to only 15% and 85% renewable energy in 2040.The basis for realizing this vision is a strong capability in development andestablishment of new offshore wind, increased use of biomass and use of gas to secureflexible power production.It is the clear ambition to continue to generate more energy, while rapidly increasing thegreen proportion of this energy. And this should be done on a sound commercial basis.The target is thus to double earnings in the period between 2009 and 2015.DONG Energy - a dynamic energy company inNorthern EuropeEnergy is the life blood of modern society, and a reliable supply of energy is essential tokeep the wheels of society turning. Energy companies produce different types and formsof energy that is taken to where society and its companies and consumers need it viatrading on international markets.DONG Energy is headquartered in Denmark and the result of a merger between sixDanish energy companies in 2006. It is a vertically integrated energy company withactivities in upstream oil and gas production in the North Sea, heat and power productionat thermal power plants and wind in Northern Europe, energy trade in Northern Europeand gas and electricity distribution network and end-users in Denmark and theNetherlands. The vertical integration creates a robust company for international growththrough diversified investments, knowledge of each part of the energy sector andbusiness opportunities along the value chain.Figur 1 DONG ENERGY's value chainRisø International Energy Conference 2011 Proceedings Page 18
Growth in clean and reliable energy productionMore global focus on increasing demand for energy and on the use of fossil fuels and theeffects of CO2 on the climate increases the pressure to finding new ways to supplyenergy on a reliable basis. The EU has introduced the objective to reduce CO2 emissionsby 20% compared to 1990, increase use of renewable energy to 20% and decreaseenergy consumption by 20% in 2020. In Denmark, the political vision is energyindependence of fossil fuels in 2050.Today, reliable energy is produced at thermal power stations based on fossil fuels suchas coal and gas and these fuels emit CO2 in the conversion process to heat andelectricity. With increasing production of electricity from renewable sources as wind, theemission of CO2 is reduced. But, wind as an energy source is not reliable. As anintegrated energy company DONG Energy sees the increasing focus on CO2 reductionas well as the increase in renewable energy as opportunities to create new business areas.DONG Energy's vision is to provide clean and reliable energy.The vision is to be fulfilled by changing DONG Energy share of CO 2 -emitting heat andpower production in 2006 from 85% to only 15% in 2040.The basis for realizing this vision is a strong capability in development andestablishment of new offshore wind, increased use of biomass and use of gas to secureflexible power production. The energy sector is currently in a process of major change toenable it to provide a more sustainable and more reliable energy supply. DONG Energyis taking an active part in this transition through its strategy and an aim to halve its CO2emissions per kWh by 2020 compared to 2006. With emissions of 524 g CO2 per kWhgenerated in 2010, and with the corresponding figure in 2006 being 638 g CO2/kWh,DONG Energy is well on the way to meeting this target.Wind energy plays a significant role in the transition to clean energy but DONGEnergy's strong capabilities in thermal generation will also be instrumental in ensuringthat the ambitious targets for the reduction in CO2 emissions can be met. This will beachieved by converting coal-fired power stations to biomass and reducing the coal-firedpower station capacity. Phasing out of coal-fired units from ten to five has alreadyreduced coal consumption from 6 million tonnes in 2006 to 4 million tonnes in 2010.Continued phasing out and the expected conversion of coal-fired units to biomass areexpected to reduce coal consumption by a further 2 million tonnes by the end of 2014.Figur 2 Realization of vision 85/15 and capacity development until 2014The conversion of thermal generation in the period 2006-2010 has contributed to areduction of 6 million tonnes in CO2 emissions, equivalent to 13% of Denmark's totalCO2 emissions (2009) and 44% of the reduction to which Denmark has committed (underthe Kyoto Protocol). And with the continued conversion of thermal generation, DONGRisø International Energy Conference 2011 Proceedings Page 19
Page 1 and 2: Energy Systems and Technologies for
Page 3 and 4: ContentsSessions overview 1Programm
Page 5 and 6: sessions overview08:00-09:00Coffee
Page 7 and 8: 11:00 - 12:30 session 6A - Bioenerg
Page 9 and 10: ContactSustainable Energy, Technica
Page 11 and 12: Penetration of new energy technolog
Page 13 and 14: how decisions are made and by whom
Page 15 and 16: (9) is the logaritimic expansion of
Page 17 and 18: (16)we may finally write Eq(14) in
Page 19 and 20: Table 1: Fast track cases for new r
Page 21: Peterka V. Macrodynamics of technol
Page 25 and 26: Conclusion - an ambitious vision an
Page 27 and 28: "Spurring investments in renewable
Page 29 and 30: Integrating climate change adaptati
Page 31 and 32: transport, and finance. Energy prov
Page 33 and 34: northern South America, the Caribbe
Page 35 and 36: Table 1: Energy system adaptation s
Page 37 and 38: More generally, a number of no- or
Page 39 and 40: 6 ReferencesADB, 2005. Climate proo
Page 41 and 42: Sailor, D.J., Smith, M., Hart, M.,
Page 43 and 44: Factors affecting stakeholder perce
Page 45 and 46: Another study conducted in Japan wa
Page 47 and 48: 4 The effect of information on stak
Page 49 and 50: Furthermore, communication to stake
Page 51 and 52: Shackley S, McLachlan C, Gough C (2
Page 53 and 54: Figure 1: Potential CO 2 storage si
Page 55 and 56: The Upper Jurassic - Lower Cretaceo
Page 57 and 58: The majority of the individual stru
Page 59 and 60: Development. Project no. ENK6-CT-19
Page 61 and 62: Section 5 summarises the key issue
Page 63 and 64: Table 1. Efficiencies for new large
Page 65 and 66: In addition, district heating syste
Page 67 and 68: 6.4 Model results from EFDA-TIMESIn
Page 69 and 70: Maisonnier, D., et al. (2007), Powe
Page 71 and 72: 1Efficiency and effectiveness of pr
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3Stromerzeugung [TWh/a]250200150100
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54 Country-specific Lessons learned
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7100%90%80%quota fullfilment (%)70%
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[5] Haas R., et al: Efficiency and
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The development and diffusion of re
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a. Offshore wind in DenmarkDenmark
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applicants are invited to submit a
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nies that provide upstream and down
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for both technology users and produ
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Trade Disputes over Renewable Energ
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treatment to imported renewable ene
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In Canada, the federal government i
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grid access, subsidies and land off
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In 2010, China’s total wind insta
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Source: Renewables 2010 Global Stat
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Source: REN 21, Renewables 2010 Glo
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Source: adapted from REN21, 2010It
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their precise scope and nature diff
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60 daysBy 2 nd DSBmeetingConsultati
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discriminatory manner on domestic a
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the European Union, the North Ameri
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ended. China lost this case because
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As most countries in the world are
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Session 3A - Energy SystemsRisø In
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1 IntroductionWith the introduction
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occur. This is an undesirably burea
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This curve could be used as a new t
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ut for the total consumption, and i
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This gives the LBR an opportunity t
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concludes that the subsurface conta
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to constrain the evaluation. In add
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Fig. 2 SW-NE trending seismic profi
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Fig. 5. Petrophysical evaluation of
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ConclusionsThe Danish subsurface co
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Performance of Space Heating in aMo
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[5],[10],[11],[16],[18],[20],[26].
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2/3 Sun1 Coal1/3 ElPower plantHP1 H
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25002000Surplus(min(wind,prod-cons)
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160CO 2 emission per unit heat prod
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The calculations have been based on
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Session 3B - smart gridsRisø Inter
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2 Myopic Investments2.1 The Balmore
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Moreover, this model is formulated
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Reducing Electricity Demand Peaks b
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3 Event Driven Scheduling Algorithm
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5 Mapping Teletraffic Theory to Ene
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6.2 Results and Performance Metrics
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Energy Efficient Refrigeration and
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Virtual Power PlantAggregatorSuperm
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C p,rC p,fT rT fW cφ sT a(UA) raHe
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Total PowerP.G. #1P.G. #2C.R. #1201
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the availability payment.Simulation
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The constraint in Eq. (16) has the
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The FlexControl concept - a vision,
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can react on requests for power reg
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3 ControlThe concept is based solel
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one hour to the next - correspondin
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4 ProtectionThe protection of the p
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Session 4 - Efficiency Improvements
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the product portfolio point of view
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Figure 4: Principle flow sheet of t
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process information needed are seld
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AIRFINE®(Reference)MEROS®Ca(OH)2M
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4 Conclusion & DiscussionThe Eco-Ca
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1 Energy policy and EU directivesTh
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iomass CHP, heat pumps, electric bo
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Fig. 1: How to supply a growing hea
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Session 5A - Wind Energy IRisø Int
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The average cumulative growth rate
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turbines is expected to create a st
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O&MGridWindturbineSubstructureFigur
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Another idea is to harvest energy f
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9. Shimon Awerbuch, Determining the
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engaged in wind energy assessment,
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treated in such a way to make them
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Figure 5: Map showing the estimated
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Figure 9: The annual mean power den
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mix is required. For example diurna
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Session 5B - Wind Energy IIRisø In
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TABLE ISOME OF THE WIND TURBINE MAN
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China, has prompted all parties, in
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to the high shaft speed. Furthermor
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Superconductors must be kept cold b
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an annual increase in demand of 6%,
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Improved High Temperature Supercond
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our study to a single set of deposi
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3.2 Yttrium-enriched YBCO thin film
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Fig. 5. AC-susceptibility dependenc
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The j C (B) dependence at 50 K for
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Session 6A - Bioenergy IRisø Inter
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The European politicians are faced
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The fast growing demand for biomass
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Figure 2: Avedøre Power Plant in C
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Figure 5: Concept for a sustainable
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The role of biomass and CCS in Chin
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2.2.1 CCS Potential for ChinaCCS is
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80%70%60%China's share ofglobal CO
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In general, if the CCS technology d
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with high implementation of CCS Chi
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The European Biofuels Policy: from
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aimed to promote agriculture-based
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(EC, 2009b), and internationally vi
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Session 6B - Bio Energy IIRisø Int
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The commercial scale production of
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the production process parameters,
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NutrientWaterAlgal cultureproductio
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Schenk, P.M., Thomas-Hall, S.R., St
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Liquid biofuels from blue biomassZs
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Even though final ethanol yields we
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Integrated Gasification SOFC Plant
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2.1 Modelling of SOFCThe SOFC model
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where g 0 , R an T are the specific
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hand side y-axis corresponds to eff
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The moister content for these three
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Use of Methanation for Optimization
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power production from utilizing the
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2.1 Model DescriptionThe developed
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Figure 3: Flow sheet of methanation
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efficiency and turbine inlet temper
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[14] DNA - A Thermal Energy System
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On the effectiveness of standards v
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educing new car emissions to 120 g
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In addition energy consumption E an
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coefficient γ for the impact of fu
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400200Change in energy (PJ)01980 19
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Figure 9 depict scenarios for the f
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What are customers willing to pay f
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Randomly, continuous up to ±50%Acc
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The likelihood for the model is giv
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eally means that this factor and no
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Table 5-1 Parameter estimates from
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Table 6-2 Willingness to pay for 10
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Session 12 - Energy for Developing
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Risø International Energy Conferen
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existing renewable energy technolog
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useful energyend energysecondary en
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parts or the means of enforcing war
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The development of micro-hydro proj
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Table 1. Electric power generation
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5 ReferencesBajgain, S., Shakya, I.
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IntroductionElectricity has become
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of 2008, 43.6% of the total populat
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Hilmand provinces have comparativel
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….. eq. 5LCOE is the net present
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case of Nepal, it is 5% (Trading ec
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ing down the cost of solar PV modul
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3.3 Serving the rural areas with na
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The levelized costs of electricity
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Figure 4. Variation in LCOE with si
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The analysis reveals that fuel cost
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In case of DG, we have looked with
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Gross, R., Blyth, W., Heptonstall,
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Mode of Transport to Work, Car Owne
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power parity (PPP) basis, GDP per c
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83,385 to 109,108 while the number
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other purposes so that reduced fare
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emissions studies is that they were
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where I (·) is the indicator funct
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increases, individuals acquire more
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while that of other means of transp
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into CO 2 . For all oil and oil pro
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impact. In general, income is found
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7 ReferenceAlperovich, G., Deutsch,
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Table 1: Definitions of Variables a
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Session 13 - Energy StorageRisø In
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2 Storage demand and resulting stor
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compressed air storages, demand sit
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Fig. 3: Options for underground sto
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3.5 Geological potential in EuropeF
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Sensitivity on Battery Prices and C
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3.1 Base caseA northern European en
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4 ResultsThe model is run on a comp
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Furthermore, a slight decrease in t
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Night time charging increases with
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Lithuanian Energy Institute, PSE In
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atteries, Compressed Air Energy Sto
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negative net load, can be expected
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25%Pct. of the year20%15%10%5%0.5-0
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800006000040000MWh200000Netload-200
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[4] B. V. Mathiesen and H. Lund, "C
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Compressed Air Energy Storage in Of
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compressed air caverns, corrosion-r
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Figure 3: Distribution of salt depo
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Figure 6: EWEA's 20 year Offshore N
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spinning reserves can be provided b
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7 Discussion and conclusionsThis pa
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Risø DTU is the National Laborator
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