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  • 1.
    Almulla, Youssef
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Ramos, Eunice
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Gardumi, Francesco
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Lipponen, A.
    Howells, Mark I.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    The role of energy-water nexus to motivate transboundary cooperation: An indicative analysis of the Drina river basin2018In: International Journal of Sustainable Energy Planning and Management, ISSN 2246-2929, E-ISSN 2246-2929, Vol. 18, p. 3-28Article in journal (Refereed)
    Abstract [en]

    Low-carbon hydropower is a key energy source for achieving Sustainable Development Goal 7-sustainable energy for all. Meanwhile, the effects of hydropower development and its operation are complex-and potentially a source of tension on Transboundary Rivers. This paper explores solutions that consider both energy and water to motivate transboundary cooperation in the operation of hydropower plants (HPPs) in the Drina River Basin (DRB) in South-East Europe. Here the level of cooperation among the riparian countries is low. The Open Source energy Modeling System-OSeMOSYS was used to develop a multi-country model with a simplified hydrological system to represent the cascade of HPPs in the DRB; together with other electricity options, including among others: energy efficiency. Results show that improved cooperation can increase electricity generation in the HPPs downstream without compromising generation upstream. It also demonstrates the role of inexpensive hydropower to enhance electricity trade in the region. Implementing energy efficiency measures would reduce the generation from coal power plants, thereby mitigating CO 2 emissions by as much as 21% in 2030 compared to the 2015 levels. In summary, judicious HPP operation and electricity system development will help the Western Balkans reap significant gains.

  • 2. Aoun, M. -C
    et al.
    Pešut, D.
    Matosović, M.
    Bošnjak, R.
    Deane, P.
    Glynn, J.
    Gallachóir, B. Ó
    Nagy, S.
    Badouard, T.
    Desbrosses, N.
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    de Boncourt, M.
    Keramidas, K.
    Gas Security of Supply in the European Union2017In: Europe's Energy Transition: Insights for Policy Making, Elsevier, 2017, p. 67-78Chapter in book (Refereed)
    Abstract [en]

    The EU remains widely dependent on external gas supplies, with imports representing 70% of its consumption in 2013. Member States have different import profiles with divergent levels of dependency on Russian imports. Several European Member States rely heavily on Russian supplies, which shows that the EU gas supply security needs to be examined both from an internal and international perspective. Since the 2009 crisis between Russia and Ukraine, the EU has adopted several legislative tools to strengthen EU gas security of supply. The third legislative package, the security of supply Regulation (EU) 994/2010 and the Energy Infrastructure package identifying Projects of Common Interest have significantly improved the ability of the EU to face import disruptions. However, several countries remain particularly vulnerable to the occurrence of disruption. When considering national production, storage, and the diversity of suppliers, Bulgaria, Czech Republic, Estonia, Finland, Latvia, and Lithuania seem to be at risk. Romania, Poland, and Hungary also import the bulk of their gas from Russia, but have either domestic production or significant storage capacity.

  • 3.
    Gardumi, Francesco
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Shivakumar, Abhishek
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Morrison, Robbie
    Schillerstr 85, D-10627 Berlin, Germany..
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Broad, Oliver
    UCL, Inst Sustainable Resources, London, England..
    Beltramo, Agnese
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Sridharan, Vignesh
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Howells, Mark I.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Hoersch, Jonas
    Frankfurt Inst Adv Studies, Frankfurt, Germany..
    Niet, Taco
    British Columbia Inst Technol, Burnaby, BC, Canada..
    Almulla, Youssef
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Ramos, Eunice
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Burandt, Thorsten
    Tech Univ Berlin, Workgrp Econ & Infrastruct Policy WIP, Berlin, Germany..
    Pena Balderrama, J. Gabriela
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Pinto de Moura, Gustavo Nikolaus
    Univ Fed Ouro Preto, Ouro Preto, MG, Brazil..
    Zepeda, Eduardo
    United Nations Dept Econ & Social Affairs, Dev Policy & Anal Div, New York, NY USA..
    Alfstad, Thomas
    United Nations Dept Econ & Social Affairs, Dev Policy & Anal Div, New York, NY USA..
    From the development of an open-source energy modelling tool to its application and the creation of communities of practice: The example of OSeMOSYS2018In: Energy Strategy Reviews, ISSN 2211-467X, E-ISSN 2211-4688, Vol. 20, p. 209-228Article in journal (Refereed)
    Abstract [en]

    In the last decades, energy modelling has supported energy planning by offering insights into the dynamics between energy access, resource use, and sustainable development. Especially in recent years, there has been an attempt to strengthen the science-policy interface and increase the involvement of society in energy planning processes. This has, both in the EU and worldwide, led to the development of open-source and transparent energy modelling practices. This paper describes the role of an open-source energy modelling tool in the energy planning process and highlights its importance for society. Specifically, it describes the existence and characteristics of the relationship between developing an open-source, freely available tool and its application, dissemination and use for policy making. Using the example of the Open Source energy Modelling System (OSeMOSYS), this work focuses on practices that were established within the community and that made the framework's development and application both relevant and scientifically grounded.

  • 4.
    Mentis, Dimitrios
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Karalis, George
    Zervos, Arthouros
    Howells, Mark
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Bazilian, Morgan
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Rogner, Holger
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology. International Institute for Applied Systems Analysis, Austria .
    Desalination using renewable energy sources on the arid islands of South Aegean Sea2016In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 94, p. 262-272Article in journal (Refereed)
    Abstract [en]

    Water and energy supply are strongly interrelated and their efficient management is crucial for a sustainable future. Water and energy systems on several Greek islands face a number of pressing issues. Water supply is problematic as regards both to the water quality and quantity. There is significant lack of water on several islands and this is mainly dealt with tanker vessels which transport vast amounts of water from the mainland. At the same time island energy systems are congested and rely predominantly on fossil fuels, despite the abundant renewable energy potential. These issues may be addressed by combining desalination and renewable energy technologies. It is essential to analyse the feasibility of this possibility. This study focuses on developing a tool capable of designing and optimally sizing desalination and renewable energy units. Several parameters regarding an island's water demand and the desalination's energy requirements are taken into account as well as input data which concern technological performance, resource availability and economic data. The tool is applied on three islands in the South Aegean Sea, Patmos (large), Lipsoi (medium) and Thirasia (small). Results of the modelling exercise show that the water selling price ranges from 1.45 (sic)/m(3) for the large island, while the corresponding value is about 2.6 (sic)/m(3) for the small island, figures significantly lower than the current water cost (7-9 (sic)/m(3)).

  • 5.
    Mentis, Dimitris
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Howells, Mark I.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Rogner, Hans-Holger
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Korkovelos, Alexandros
    KTH.
    Arderne, Christopher
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Zepeda, Eduardo
    Siyal, Shahid Hussain
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Bazilian, Morgan
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    de Roo, Ad
    Tanvez, Yann
    Oudalov, Alexander
    Scholtz, Ernst
    Lighting the World: the first application of an open source, spatial electrification tool (OnSSET) on Sub-Saharan Africa2017In: Environmental Research Letters, ISSN 1748-9326, E-ISSN 1748-9326, Vol. 12, no 8, article id 085003Article in journal (Refereed)
    Abstract [en]

    In September 2015, the United Nations General Assembly adopted Agenda 2030, which comprises a set of 17 Sustainable Development Goals (SDGs) defined by 169 targets. 'Ensuring access to affordable, reliable, sustainable and modern energy for all by 2030' is the seventh goal (SDG7). While access to energy refers to more than electricity, the latter is the central focus of this work. According to the World Bank's 2015 Global Tracking Framework, roughly 15% of the world's population (or 1.1 billion people) lack access to electricity, and many more rely on poor quality electricity services. The majority of those without access (87%) reside in rural areas. This paper presents results of a geographic information systems approach coupled with open access data. We present least-cost electrification strategies on a country-by-country basis for Sub-Saharan Africa. The electrification options include grid extension, mini-grid and stand-alone systems for rural, peri-urban, and urban contexts across the economy. At low levels of electricity demand there is a strong penetration of standalone technologies. However, higher electricity demand levels move the favourable electrification option from stand-alone systems to mini grid and to grid extensions.

  • 6. Normark, B.
    et al.
    Faure-Schuyer, A.
    Shivakumar, Abhishek
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Deane, P.
    Gottschling, J.
    Pattupara, R.
    Kannan, R.
    Jakši, D.
    Stupin, K.
    Hemert, R. V.
    Storage Solutions and Their Value2017In: Europe's Energy Transition: Insights for Policy Making, Elsevier, 2017, p. 173-187Chapter in book (Refereed)
    Abstract [en]

    Energy storage has increasingly come into focus as a key transformational technology in the energy system. This is driven by several factors, including: (1) the increased electrification of the energy system and the associated changes in demand patterns, driven by new loads such as electric vehicles and heat pumps; (2) the decarbonization of the power system and the associated increases in the penetration of variable renewable electricity production, and related security of supply concerns. In this chapter we explore the evolving role of storage in the EU energy system-both at present and in the future. This includes proposed changes in current legislative frameworks to support the diffusion of storage technologies-a key enabler in the EU's transition to a reliable, flexible, and affordable energy system.

  • 7.
    Shivakumar, Abhishek
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Deane, P.
    Gottschling, J.
    Pattupara, R.
    Kannan, R.
    Jakši, D.
    Stupin, K.
    Hemert, R. V.
    Normark, B.
    Faure-Schuyer, A.
    Need for Flexibility and Potential Solutions2017In: Europe's Energy Transition: Insights for Policy Making, Elsevier, 2017, p. 149-172Chapter in book (Refereed)
    Abstract [en]

    With an increasing penetration of variable renewables in the EU in recent years, the flexibility of its power system is of critical importance. In this chapter, we first assess flexibility considerations in the past, prior to market liberalization. We then analyze the impact of increasing penetration of renewables on flexibility requirements. Further, we identify existing options to provide this flexibility. Finally, we use model-based analysis, we quantitatively assess potential solutions to deploying temporary production and storage. Business models and potential evolutions of the legislative framework associated with the different solutions are also proposed.

  • 8.
    Shivakumar, Abhishek
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Welsch, Manuel
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Jakši, D.
    Barievi, T.
    Howells, Mark I.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Need for Reliability and Measuring Its Cost2017In: Europe's Energy Transition - Insights for Policy Making, Elsevier, 2017, p. 207-218Chapter in book (Refereed)
    Abstract [en]

    At present, power supply in the EU is characterized by a relatively high reliability. It should, however, not be taken for granted given the increasing shares of variable RES. Choosing the socioeconomically optimal level of reliability to aim for requires a thorough understanding of the socioeconomic costs of electricity supply interruptions. This chapter provides guidance on how to measure the consequences of supply interruptions and thus determine the value of electricity supply security.

  • 9.
    Taliotis, Constantinos
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Large scale renewable energy deployment - Insights offered by long-term energy models from selected case studies2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The United Nations’ Sustainable Development Goal 7 (SDG7) of Agenda 2030 calls for an increase in the use of renewable energy sources, among other targets. The percentage of fossil fuel-fired thermal generation for electricity is increasingly being reduced as renewable energy technologies (RET) advance in cost-competitiveness, and as greenhouse gas and industrial air pollutant emission limits become more stringent. In certain cases, renewable energy contributes to energy security by improving a nation’s trade balance, since local resources are harnessed and imports are reduced. RET investments are becoming more frequent gaining a sizeable share in the electric power mix of numerous countries.

    However, RET is affected by existing fossil fuel-fired electricity generation, especially in countries that have domestic reserves. While coal may be dirty, others such as natural gas provide multiple benefits, presenting a challenge to renewables. Additionally, RET endowment varies for each geographical location. This often does not correspond to the location of major electricity demand centers.  Therefore, large scale RET adoption and integration becomes logistically more cumbersome, as it necessitates existence of a developed grid network.

    Utilizing a series of analyses in two different settings – Africa and Cyprus – this thesis draws insights on RET growth policy and the level of technology representation in long term energy models. In order to capture specific challenges of RET integration, enhancements in traditional long-term energy system models are called for and carried out.

     The case of Africa is used to assess adoption of RET under various trade scenarios. It is home to some of the world’s greatest RET resource potential and the single largest potential RET project, Grand Inga.  While, the island of Cyprus has goals of introducing large percentages of RET into its electric power mix. Each have important idiosyncrasies which are reflected in the analysis. On the one hand, natural gas competes with RET in Cyprus and forms a key transition fuel away from oil. On the other hand, lack of cross-border interconnectors limit RET project development across Africa.

  • 10.
    Taliotis, Constantinos
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Bazilian, Morgan
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis. Columbia University, United States .
    Welsch, Manuel
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Gielen, D.
    Howells, Mark
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Grand Inga to power Africa: Hydropower development scenarios to 20352014In: Energy Strategy Reviews, ISSN 2211-467X, E-ISSN 2211-4688, Vol. 4, p. 1-10Article in journal (Refereed)
    Abstract [en]

    The vision of harnessing the Congo River's immense flow to generate power for the African continent has existed in the agenda of energy planners and politicians for nearly a century. However after the installations of Inga I in 1972 and Inga II in 1982, progress came to a standstill. Recently though the larger aspirations of Grand Inga seem to be moving forward again. Construction of Inga III low-head is set to commence in 2015 with a projected capacity of 4755MW, of which 2500MW are contracted for the South African market. Upon completion, the total capacity of Grand Inga could reach 42GW. In this paper, we present scenario-driven results of a Sub-Saharan African-focused partial-equilibrium energy model related to the further development of the project. The analysis is presented to show the broad range of possible energy futures related to this project, without taking into deep consideration the admittedly important issues related to governance, environmental impacts or social tensions. Scenarios are developed to assess the energy outlook of the Central African power pool, in which Grand Inga is located, and the exchange of electricity between regions when the project is completed. The project has the potential to cover the increasing needs for power in this power pool and provide electricity exports to other regions; primarily Southern and Western Africa in a high demand scenario and Southern and Northern Africa in a low demand scenario.

  • 11.
    Taliotis, Constantinos
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Howells, Mark I.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Bazilian, M.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Rogner, Hans-Holger
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Welsch, Manuel
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
    Energy security prospects in Cyprus and Israel: A focus on natural gas2014In: International Journal of Sustainable Energy Planning and Management, ISSN 2246-2929, E-ISSN 2246-2929, Vol. 3, p. 5-20Article in journal (Refereed)
    Abstract [en]

    The global production of natural gas has increased from 1226 bcm in 1973 to 3282 bcm in 2010 and is projected to continue rising by an annual growth rate of 1.6% between 2010 to 2035. Cyprus and Israel have recently made major offshore discoveries of natural gas, which can supply to a great extent the two countries’ current domestic energy needs for the next few decades and still export a substantial volume. MESSAGE, a global optimization model was used to explore the possible interactions between the two countries’ energy systems. Scenarios are presented that assess the export potential for electricity (generated by gas-fired power plants), liquefied natural gas (LNG) or gas-to-liquid products (GTL). The results are compared to a scenario without any available reserves to illustrate the financial benefits that will arise from the exploitation of the gas resources in the two countries.

  • 12.
    Taliotis, Constantinos
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Miketa, Asami
    Howells, Mark
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Hermann, Sebastian
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Welsch, Manuel
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Broad, Oliver
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Rogner, Holger
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Bazilian, Morgan
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Gielen, Dolf
    An indicative assessment of investment opportunities in the African electricity supply sector2014In: Journal of Energy in Southern Africa, ISSN 1021-447X, Vol. 25, no 1, p. 2-12Article in journal (Refereed)
    Abstract [en]

    In the coming decades, demand for electricity will increase considerably on the African continent. Investment in power generation, transmission and distribution is necessary to meet this demand. In this paper a cost-optimization tool is used to assess investment opportunities under varying scenarios of GDP growth, electricity trade and CO2 taxation. Business as usual fuel price outlooks are assumed, and related assumptions are relatively conservative. The goal is to find if there are economic indications that renewable energy might play a significant role in the expansion of the African electricity system. The results show that there is potential of renewable energy (RE) resources to have a significant share in the generation mix. By 2030, 42% and 55% of the total generation is powered by renewables in the high and low GDP scenarios respectively. Promotion of interregional trade can assist in unlocking RE potential across the continent, such as hydro in Central Africa and wind in East Africa; these regions are projected to be net exporters of electricity. Additionally, generation by off-grid technologies increases over time, reaching 12% of the total generation by 2030 in Sub-Saharan Africa.

  • 13.
    Taliotis, Constantinos
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Rogner, Holger
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Ressl, Stephan
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Howells, Mark
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Gardumi, Francesco
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Natural gas in Cyprus: The need for consolidated planning2017In: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 107, p. 197-209Article in journal (Refereed)
    Abstract [en]

    The electricity supply system of Cyprus is currently dominated by oil-fired generation, with small but increasing contributions from renewable energy technologies. As regulations regarding emissions of greenhouse gases and air pollutants will become stricter with the turn of the decade, change is imminent. Available offshore gas reserves and the possibility of natural gas imports have shown that the substitution of oil with gas can reasonably be expected in the not-so-distant future. However, the framework under which change could occur has not yet been established. Should imports of gas serve as a short-term bridge until domestic gas becomes available? What are the infrastructure implications associated with such a medium-term solution? How does a policy-driven transition to gas affect energy security and how compatible is this with a liberalized electricity market? Can short- and longer term strategies be consistently designed and implemented? A cost-optimization model (OSeMOSYS), representing the electricity system of the island, is used to provide insights to these questions. Results regarding generation mix, capacity and system costs are presented for a set of scenarios. In all cases investigated, compliance with environmental regulations of the European Union after 2020 makes gas the strategic fuel of choice for low cost electricity generation.

  • 14.
    Taliotis, Constantinos
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Shivakumar, Abhishek
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Ramos, Eunice
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Howells, Mark I.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Mentis, Dimitris
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Sridharan, Vignesh
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Broad, Oliver
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Mofor, Linus
    An indicative analysis of investment opportunities in the African electricity supply sector: Using TEMBA (The Electricity Model Base for Africa)2016In: Energy for Sustainable Development, ISSN 0973-0826, Vol. 31, p. 50-66Article in journal (Refereed)
    Abstract [en]

    Africa is a resource-rich continent but lacks the required power infrastructure. Efforts such as the United Nations Sustainable Energy for All and U.S. President Obama's Power Africa initiatives aim to facilitate much needed investment. However, no systematic national and regional investment outlook is available to analysts. This paper examines indicative scenarios of power plant investments based on potential for electricity trade. OSeMOSYS, a cost-optimization tool for long-term energy planning, is used to develop least cost system configurations. The electricity supply systems of forty-seven countries are modelled individually and linked via trade links to form TEMBA (The Electricity Model Base for Africa). A scenario comparison up to 2040 shows that an enhanced grid network can alter Africa's generation mix and reduce electricity generation cost. The insights have important investment, trade and policy implications, as specific projects can be identified as of major significance, and thus receive political support and funding.

  • 15.
    Taliotis, Constantinos
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Shivakumar, Abhishek
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Sridharan, Vignesh
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Howells, Mark
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Regional effects of Grand Inga: A project-focus application of TEMBA (The Electricity Model Base for Africa)In: Energy for Sustainable Development, ISSN 0973-0826Article in journal (Refereed)
    Abstract [en]

    The proposed Grand Inga project could reach a total generating capacity of 42 GW, making it the biggest hydropower plant in the world. The scale of the proposed project is immense in comparison to numerous national power systems in Sub-Saharan Africa – and their relatively small demand. As such, when it reaches its full potential, Grand Inga’s low-cost electricity has the potential to dominate the electricity supply mix of neighbouring countries. However, as a result of the required mobilization of funds for Grand Inga’s construction, potential markets and hence investors need to be identified. Energy-intensive and growing economies in Southern and Western Africa are likely destinations for the project’s electricity, but this also necessitates transnational grid expansion to enable trade. This paper employs a cost-optimization approach to provide an indication, under various scenarios, of selected national economies that are likely to demand electricity from Inga and the associated trade routes that should be put in place. A national-scale model of the African continent is employed and results are compared to a preceding study, which used a coarser resolution of the continent’s electricity supply system.

  • 16.
    Taliotis, Constantinos
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Taibi, E.
    Howells, Mark I.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Rogner, Hans-Holger
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Bazilian, Morgan
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Welsch, Manuel
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Technoeconomic assumptions adopted for the development of a long-term electricity supply model for Cyprus2017In: Data in Brief, ISSN 2352-3409, Vol. 14, p. 730-737Article in journal (Refereed)
    Abstract [en]

    The generation mix of Cyprus has been dominated by oil products for decades. In order to conform with European Union and international legislation, a transformation of the supply system is called for. Energy system models can facilitate energy planning into the future, but a large volume of data is required to populate such models. The present data article provides information on key modelling assumptions and input data adopted with the aim of representing the electricity supply system of Cyprus in a separate research article. Data in regards to renewable energy technoeconomic characteristics and investment cost projections, fossil fuel price projections, storage technology characteristics and system operation assumptions are described in this article.

  • 17.
    Taliotis, Constantinos
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Taibi, Emanuele
    Howells, Mark
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy Systems Analysis.
    Rogner, Holger
    Bazilian, Morgan
    Welsch, Manuel
    Renewable Energy Technology integration for the island of Cyprus: A cost-optimization approachIn: Energy, ISSN 0360-5442Article in journal (Refereed)
    Abstract [en]

    In light of the ongoing financial crisis, Cyprus is called to transform its energy sector. The high electricity cost has been recognized as a priority issue and authorities on the island are considering several available options to reduce electricity tariffs. A fuel switch from oil to gas, domestic or imported, an electrical cross-border interconnection and a rapid increase in the share of renewable energy are among the major options being considered. Focusing on the power supply of Cyprus, the present study uses a cost-optimization tool to investigate the impact of different combinations of policy decision, resulting in a series of different scenarios, with some common key findings, with the aim of directly informing future energy policy decisions. Results indicate that renewable energy technologies will play a major role regardless the decisions taken. However, a set of enabling regulatory and market changes on the horizon might prevent least-cost deployment of renewables to take place. This study will review the findings and make some recommendations on the achievement of this optimal pathways for the evolution of Cyprus electricity sector.

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