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Ioannis Kougias
European Commission, Joint Research Centre (JRC), Ispra, Italy

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Journal article
Published: 23 May 2021 in Renewable Energy
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The need for energy in rural and remote areas is increasing, and it is exacerbated in developing countries. The wellbeing of communities and citizens depends on access to clean electricity to improve quality of life. An uninterrupted supply of electricity is one of the sustainable development goals (SDGs) that has highlighted the needs and challenges in remote areas. The complexity of designing strategies and solutions is further augmented for villages located in protected areas, national parks, and wildlife refuges, the conservation of which is fundamental to achieving climate, environmental, and ecologic objectives. Fossil fuel-based electricity generation and large-scale transmission networks pose a potential threat to the achievement of SDGs in such areas. This research investigated the use of solar photovoltaic (PV) technology as a renewable energy source (RES) that can cover energy needs of rural areas in a continuous, secure, and sustainable manner. In this study, the feasibility of using solar energy to electrify remote settlements located in protected areas of Iran (Khorasan-e-Razavi) was evaluated using a multi-criteria, GIS-based methodology. A set of criteria was selected to evaluate the suitability of solar PV, including solar irradiance and duration, aspect, temperature, precipitation, and humidity as well as proximity to faults, roads, and rivers. Using the best worth method (BWM), the relative weight of the selected criteria was calculated. The results showed that almost 2% of the region's area is very highly suitable and another 23.5% is highly suitable. This 25% represents an area of 1500 km2 and includes 63 villages. Evaluation of census data showed that available building areas can cover the villages' residential demand using rooftop PV systems. Nonetheless, local and national government support is necessary to develop an effective strategy that results in successful implementation.

ACS Style

Foad Minaei; Masoud Minaei; Ioannis Kougias; Hossein Shafizadeh-Moghadam; Seyed Ali Hosseini. Rural electrification in protected areas: A spatial assessment of solar photovoltaic suitability using the fuzzy best worst method. Renewable Energy 2021, 176, 334 -345.

AMA Style

Foad Minaei, Masoud Minaei, Ioannis Kougias, Hossein Shafizadeh-Moghadam, Seyed Ali Hosseini. Rural electrification in protected areas: A spatial assessment of solar photovoltaic suitability using the fuzzy best worst method. Renewable Energy. 2021; 176 ():334-345.

Chicago/Turabian Style

Foad Minaei; Masoud Minaei; Ioannis Kougias; Hossein Shafizadeh-Moghadam; Seyed Ali Hosseini. 2021. "Rural electrification in protected areas: A spatial assessment of solar photovoltaic suitability using the fuzzy best worst method." Renewable Energy 176, no. : 334-345.

Preprint content
Published: 06 October 2020
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Africa's economic and population growth prospects are likely to increase energy and water demands. This quantitative study shows that pathways towards decarbonization of the energy sector in Africa may lead to higher water withdrawals and consumption than expected. By 2065, investments in low-carbon energy infrastructure increase annual withdrawals from 1% (2.0oC) to 2% (1.5oC) of total renewable water resources compared to 3% in the baseline scenario, despite lower final energy demands in the mitigation scenarios. Water consumption, in comparison to the baseline, increases by 282% (2.0oC) and 300% (1.5oC) by 2065, due to the high water-intensity of the low-carbon energy system. To meet the 1.5oC pathway, the energy sector requires higher water consumption overall and per unit of energy than other scenarios. These findings demonstrate the crucial role of integrated energy planning and water resources management if Africa is to achieve climate-compatible growth.

ACS Style

Ioannis Pappis; Vignesh Sridha; Mark Howells; Hrvoje Medarac; Ioannis Kougias; Rocío Sánchez; Abhishek Shivakumar; Will Usher. Conflicting objectives of energy development and water security in Africa. 2020, 1 .

AMA Style

Ioannis Pappis, Vignesh Sridha, Mark Howells, Hrvoje Medarac, Ioannis Kougias, Rocío Sánchez, Abhishek Shivakumar, Will Usher. Conflicting objectives of energy development and water security in Africa. . 2020; ():1.

Chicago/Turabian Style

Ioannis Pappis; Vignesh Sridha; Mark Howells; Hrvoje Medarac; Ioannis Kougias; Rocío Sánchez; Abhishek Shivakumar; Will Usher. 2020. "Conflicting objectives of energy development and water security in Africa." , no. : 1.

Review article
Published: 31 March 2020 in Renewable and Sustainable Energy Reviews
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The new European Commission plans to raise the greenhouse gas (GHG) emissions reduction target from 40% towards 55% by 2030 and make Europe the first climate-neutral continent by 2050. Achieving this will require accelerated energy efficiency measures, deeper electrification of sectors currently consuming conventional fuels and the deployment of more renewables, faster. This opinion article looks specifically at the role of photovoltaics (PV), based on scenarios from the Commission's 2018 long-term strategy (LTS) for energy and climate. To reach a 55% GHG emissions reduction, the cumulative PV capacity in the EU and the UK would need to surge to 455–605 GW, depending on the strategic policy scenario. This implies a compound annual growth rate between 12 and 15% in the timeframe 2020–203 to increase the annual PV market from approximately 16.5 GW in 2019 to 50–80 GW by 2030. Such a volume can provide the basis for reviving the European solar manufacturing industry as well as creating more than 100 000 jobs along the value chain.

ACS Style

Arnulf Jäger-Waldau; Ioannis Kougias; Nigel Taylor; Christian Thiel. How photovoltaics can contribute to GHG emission reductions of 55% in the EU by 2030. Renewable and Sustainable Energy Reviews 2020, 126, 109836 .

AMA Style

Arnulf Jäger-Waldau, Ioannis Kougias, Nigel Taylor, Christian Thiel. How photovoltaics can contribute to GHG emission reductions of 55% in the EU by 2030. Renewable and Sustainable Energy Reviews. 2020; 126 ():109836.

Chicago/Turabian Style

Arnulf Jäger-Waldau; Ioannis Kougias; Nigel Taylor; Christian Thiel. 2020. "How photovoltaics can contribute to GHG emission reductions of 55% in the EU by 2030." Renewable and Sustainable Energy Reviews 126, no. : 109836.

Journal article
Published: 18 December 2019 in Transportation Research Part D: Transport and Environment
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Introducing sustainable ways to use energy and transport resources is of paramount importance for creating pathways to more liveable futures. Islands not interconnected to the main grid offer, because of their typically small size, short point-to-point travel distances that suit better than most landscapes the range limitations of today’s electromobile eco-systems. This makes them a unique test-bed that may assist researchers, businesses and policy-makers in developing a better understanding of the diverse opportunities and challenges that come with supporting electric-drive vehicle (EV) infrastructure investments that actively prioritise renewable energy sources (RES). This paper reports the findings of a Q method study that looks into the attitudes of 44 key stakeholders that have a thorough theoretical and empirical knowledge of the existing power and mobility portfolios in such islandic landscapes. Our analysis identifies and presents three distinct groups of stakeholders with different priorities and visions: the ‘Tech Enthusiasts’, the ‘Transform Transport First Supporters’ and the ‘Fiscal Focus Executives’. All our respondents agree on the need for radically transforming the current transport-energy nexus offering. They identify the importance of integrated and clean solutions and recognise that support of pilot applications is more critical than research and development (R&D). They also expect technological breakthroughs to increase market maturities and reduce renewable energy production costs and feel that end-users are still hesitant to buy EVs and need incentives to do so.

ACS Style

Ioannis Kougias; Alexandros Nikitas; Christian Thiel; Sándor Szabó. Clean energy and transport pathways for islands: A stakeholder analysis using Q method. Transportation Research Part D: Transport and Environment 2019, 78, 102180 .

AMA Style

Ioannis Kougias, Alexandros Nikitas, Christian Thiel, Sándor Szabó. Clean energy and transport pathways for islands: A stakeholder analysis using Q method. Transportation Research Part D: Transport and Environment. 2019; 78 ():102180.

Chicago/Turabian Style

Ioannis Kougias; Alexandros Nikitas; Christian Thiel; Sándor Szabó. 2019. "Clean energy and transport pathways for islands: A stakeholder analysis using Q method." Transportation Research Part D: Transport and Environment 78, no. : 102180.

Journal article
Published: 01 October 2019 in Renewable and Sustainable Energy Reviews
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Katalin Bódis; Ioannis Kougias; Arnulf Jäger-Waldau; Nigel Taylor; Sándor Szabó. A high-resolution geospatial assessment of the rooftop solar photovoltaic potential in the European Union. Renewable and Sustainable Energy Reviews 2019, 114, 1 .

AMA Style

Katalin Bódis, Ioannis Kougias, Arnulf Jäger-Waldau, Nigel Taylor, Sándor Szabó. A high-resolution geospatial assessment of the rooftop solar photovoltaic potential in the European Union. Renewable and Sustainable Energy Reviews. 2019; 114 ():1.

Chicago/Turabian Style

Katalin Bódis; Ioannis Kougias; Arnulf Jäger-Waldau; Nigel Taylor; Sándor Szabó. 2019. "A high-resolution geospatial assessment of the rooftop solar photovoltaic potential in the European Union." Renewable and Sustainable Energy Reviews 114, no. : 1.

Journal article
Published: 01 October 2019 in Renewable and Sustainable Energy Reviews
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ACS Style

Ioannis Kougias; George Aggidis; François Avellan; Sabri Deniz; Urban Lundin; Alberto Moro; Sebastian Muntean; Daniele Novara; Juan Ignacio Pérez-Díaz; Emanuele Quaranta; Philippe Schild; Nicolaos Theodossiou. Analysis of emerging technologies in the hydropower sector. Renewable and Sustainable Energy Reviews 2019, 113, 1 .

AMA Style

Ioannis Kougias, George Aggidis, François Avellan, Sabri Deniz, Urban Lundin, Alberto Moro, Sebastian Muntean, Daniele Novara, Juan Ignacio Pérez-Díaz, Emanuele Quaranta, Philippe Schild, Nicolaos Theodossiou. Analysis of emerging technologies in the hydropower sector. Renewable and Sustainable Energy Reviews. 2019; 113 ():1.

Chicago/Turabian Style

Ioannis Kougias; George Aggidis; François Avellan; Sabri Deniz; Urban Lundin; Alberto Moro; Sebastian Muntean; Daniele Novara; Juan Ignacio Pérez-Díaz; Emanuele Quaranta; Philippe Schild; Nicolaos Theodossiou. 2019. "Analysis of emerging technologies in the hydropower sector." Renewable and Sustainable Energy Reviews 113, no. : 1.

Journal article
Published: 28 August 2019 in Energy for Sustainable Development
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This paper undertakes a comprehensive spatial mapping of the existing energy infrastructure in Kenya. With the perspective of the current energy status and local resources, the study develops a rural electrification spatial model for Kenya (RE_RU_KE tool) to identify optimal strategies for the different locations. The model considers the potential of conventional approaches (diesel gensets), clean technologies (solar, wind, hydro mini-grids), hybrid systems and the option of central grid extension to electrify remote areas in Kenya at the lowest possible cost. The model output is contrasted to the national Rural Electrification Master Plan (REM) of Kenya. While both the REM and RE_RU_KE tool target the off-grid rural electrification options, their methodological approaches are intrinsically different. The comparison between both results aims to enable valuable synergies and highlight the potential complementarities that can create added value for stakeholders involved in rural electrification planning. In particular, RE_RU_KE model output highlights the substantial role that renewable energy systems can play in decentralized generation providing universal energy access to rural households at a competitive cost.

ACS Style

Magda Moner-Girona; Katalin Bódis; James Morrissey; Ioannis Kougias; Mark Hankins; Thomas Huld; Sándor Szabó. Decentralized rural electrification in Kenya: Speeding up universal energy access. Energy for Sustainable Development 2019, 52, 128 -146.

AMA Style

Magda Moner-Girona, Katalin Bódis, James Morrissey, Ioannis Kougias, Mark Hankins, Thomas Huld, Sándor Szabó. Decentralized rural electrification in Kenya: Speeding up universal energy access. Energy for Sustainable Development. 2019; 52 ():128-146.

Chicago/Turabian Style

Magda Moner-Girona; Katalin Bódis; James Morrissey; Ioannis Kougias; Mark Hankins; Thomas Huld; Sándor Szabó. 2019. "Decentralized rural electrification in Kenya: Speeding up universal energy access." Energy for Sustainable Development 52, no. : 128-146.

Journal article
Published: 05 July 2019 in Sustainability
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The use of coal for electricity generation is the main emitter of Greenhous Gas Emissions worldwide. According to the International Energy Agency, these emissions have to be reduced by more than 70% by 2040 to stay on track for the 1.5–2 °C scenario suggested by the Paris Agreement. To ensure a socially fair transition towards the phase-out of coal, the European Commission introduced the Coal Regions in Transition initiative in late 2017. The present paper analyses to what extent the use of photovoltaic electricity generation systems can help with this transition in the coal regions of the European Union (EU). A spatially explicit methodology was developed to assess the solar photovoltaic (PV) potential in selected regions where open-cast coal mines are planned to cease operation in the near future. Different types of solar PV systems were considered including ground-mounted systems developed either on mining land or its surroundings. Furthermore, the installation of rooftop solar PV systems on the existing building stock was also analysed. The obtained results show that the available area in those regions is abundant and that solar PV systems could fully substitute the current electricity generation of coal-fired power plants in the analysed regions.

ACS Style

Katalin Bódis; Ioannis Kougias; Nigel Taylor; Arnulf Jäger-Waldau. Solar Photovoltaic Electricity Generation: A Lifeline for the European Coal Regions in Transition. Sustainability 2019, 11, 3703 .

AMA Style

Katalin Bódis, Ioannis Kougias, Nigel Taylor, Arnulf Jäger-Waldau. Solar Photovoltaic Electricity Generation: A Lifeline for the European Coal Regions in Transition. Sustainability. 2019; 11 (13):3703.

Chicago/Turabian Style

Katalin Bódis; Ioannis Kougias; Nigel Taylor; Arnulf Jäger-Waldau. 2019. "Solar Photovoltaic Electricity Generation: A Lifeline for the European Coal Regions in Transition." Sustainability 11, no. 13: 3703.

Journal article
Published: 25 October 2018 in Renewable Energy
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Several Mediterranean islands are not connected to the main electricity grid yet meaning that independent local grids cater for their power requirements, mainly using imported fossil fuels whose resources scarcity, especially during the high-demand summer months, is a significant challenge. Seasonal variability in power demand, fuel price volatility, as well as a growing tourism development, impose some additional complexity. The present study analyses specific island grids of the Aegean Sea. Selected islands are analysed as case studies over a 20-year period (2016–2036). The developed energy modelling exercise uses a Harmony Search Algorithm in its core. It investigates whether the deployment of renewable energy sources could lead to a sustainable system, decrease the current burden from the government budget, and support local resources. In doing so we examine whether an increased share of RES, battery storage, and their combination could reduce islands’ reliance on imports and potentially eliminate the current heavily subsidised status quo. The results show that a 30% increase of the consumption will require increases in installed power capacities by 40–70%, in the best case scenario. The latter involves significantly lower per-kWh cost, between 17% and 36% of the current values, due to the large share of RES.

ACS Style

Ioannis Kougias; Sándor Szabó; Alexandros Nikitas; Nicolaos Theodossiou. Sustainable energy modelling of non-interconnected Mediterranean islands. Renewable Energy 2018, 133, 930 -940.

AMA Style

Ioannis Kougias, Sándor Szabó, Alexandros Nikitas, Nicolaos Theodossiou. Sustainable energy modelling of non-interconnected Mediterranean islands. Renewable Energy. 2018; 133 ():930-940.

Chicago/Turabian Style

Ioannis Kougias; Sándor Szabó; Alexandros Nikitas; Nicolaos Theodossiou. 2018. "Sustainable energy modelling of non-interconnected Mediterranean islands." Renewable Energy 133, no. : 930-940.

Cover image
Published: 12 October 2018 in WIREs Energy and Environment
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The cover image is based on the Overview Next generation interactive tool as a backbone for universal access to electricity by Magda Moner‐Girona et al., DOI: 10.1002/wene.305. © EU, by Grégoire Dubois. The authors would like to acknowledge and thank the following people for their contribution to the cover image: Sara Andre, Katalin Bódis, and Grégorie Dubois.

ACS Style

Magda Moner‐Girona; Daniel Puig; Yacob Mulugetta; Ioannis Kougias; Jafaru AbdulRahman; Sándor Szabó. Cover Image, Volume 7, Issue 6. WIREs Energy and Environment 2018, 7, 1 .

AMA Style

Magda Moner‐Girona, Daniel Puig, Yacob Mulugetta, Ioannis Kougias, Jafaru AbdulRahman, Sándor Szabó. Cover Image, Volume 7, Issue 6. WIREs Energy and Environment. 2018; 7 (6):1.

Chicago/Turabian Style

Magda Moner‐Girona; Daniel Puig; Yacob Mulugetta; Ioannis Kougias; Jafaru AbdulRahman; Sándor Szabó. 2018. "Cover Image, Volume 7, Issue 6." WIREs Energy and Environment 7, no. 6: 1.

Overview
Published: 07 June 2018 in Wiley Interdisciplinary Reviews: Energy and Environment
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Energy planning in rural areas and in developing countries most often relies on the outputs of specialized analytical tools, of which only a handful have been developed. Over the years these tools have been upgraded, and the newest among them take into consideration, to a greater or lesser extent, all key determinants of energy generation and distribution. This article focuses on a “pool” of web‐based geo‐referencing open‐source tools and highlights the extent to which each analytical tool reflects the particularities of the various determinants of energy generation and distribution. In doing so, the present work identifies aspects of the tools that need to be strengthened. Building on this information, the article further maps the suitability of each tool with regard to calculating (at a local level) the six Sustainable Development Goal indicators that are closely related to energy. This makes it possible to draw conclusions about monitoring needs in study‐areas. Bringing together these two sets of findings, the article concludes with a research agenda for analytical tool development in the area of energy planning, which spills over developmental agendas. This article is categorized under: Energy and Development > Systems and Infrastructure Energy and Development > Economics and Policy

ACS Style

Magda Moner‐Girona; Daniel Puig; Yacob Mulugetta; Ioannis Kougias; Jafaru AbdulRahman; Sándor Szabó. Next generation interactive tool as a backbone for universal access to electricity. Wiley Interdisciplinary Reviews: Energy and Environment 2018, 7, 1 .

AMA Style

Magda Moner‐Girona, Daniel Puig, Yacob Mulugetta, Ioannis Kougias, Jafaru AbdulRahman, Sándor Szabó. Next generation interactive tool as a backbone for universal access to electricity. Wiley Interdisciplinary Reviews: Energy and Environment. 2018; 7 (6):1.

Chicago/Turabian Style

Magda Moner‐Girona; Daniel Puig; Yacob Mulugetta; Ioannis Kougias; Jafaru AbdulRahman; Sándor Szabó. 2018. "Next generation interactive tool as a backbone for universal access to electricity." Wiley Interdisciplinary Reviews: Energy and Environment 7, no. 6: 1.

Journal article
Published: 03 February 2018 in Geosciences
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Defining flood-prone areas is particularly important for policy makers, in order to design mitigation strategies and implement flood risk management planning. The present research applies a multicriteria index method to assess flood hazard areas at a river basin scale, in a geographic information system (GIS) environment. The developed methodology has been applied for an area in northeastern Greece, by processing information of seven parameters: flow accumulation, distance from the drainage network, elevation, land use, rainfall intensity and geology. The method assigns a relative importance to each of the parameters for the occurrence and magnitude of flooding, and the relevant weight values are defined through an “analytical hierarchy process”. Subsequently, and according to the relative importance of each index, the spatial information is superimposed, resulting in a flood hazard map of the studied region, an area in northern Greece. The obtained results indicate flood-prone zones, with a very high flood hazard mainly occurring at the lowlands in the vicinity of the drainage network. The provided flood hazard map supports planning activities and mitigation plans that are crucial to protect both the agricultural activities and existing infrastructure from future flood events.

ACS Style

Olga Patrikaki; Nerantzis Kazakis; Ioannis Kougias; Thomas Patsialis; Nicolaos Theodossiou; Konstantinos Voudouris. Assessing Flood Hazard at River Basin Scale with an Index-Based Approach: The Case of Mouriki, Greece. Geosciences 2018, 8, 50 .

AMA Style

Olga Patrikaki, Nerantzis Kazakis, Ioannis Kougias, Thomas Patsialis, Nicolaos Theodossiou, Konstantinos Voudouris. Assessing Flood Hazard at River Basin Scale with an Index-Based Approach: The Case of Mouriki, Greece. Geosciences. 2018; 8 (2):50.

Chicago/Turabian Style

Olga Patrikaki; Nerantzis Kazakis; Ioannis Kougias; Thomas Patsialis; Nicolaos Theodossiou; Konstantinos Voudouris. 2018. "Assessing Flood Hazard at River Basin Scale with an Index-Based Approach: The Case of Mouriki, Greece." Geosciences 8, no. 2: 50.

Journal article
Published: 01 December 2017 in Energy
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Pumped hydroelectric storage (PHS) is the main utility-scale storage technology. Although PHS systems generally constitute a fraction of generation, they receive increasing attention due to their potential balancing role towards higher penetration of variable renewable energy sources (RES). In the European context it is widely believed that PHS are key elements of the ongoing energy transition. The present analysis examines if this assumption is valid and PHS utilization grows parallel to RES. We collected, harmonised and analysed datasets for 1991-2016 revealing an uneven utilization among European states. While certain countries increased the utilization rates of PHS by a factor of three to four, in several others PHS units are heavily under-utilized. In three extreme cases the utilization rate, compared to the past, is at 10-25% level. We analysed this controversy by identifying tendencies in the electricity markets, ownership and management status in the various countries, as well as competition with other technologies with balancing potential. Finally, we developed a new approach to display PHS tendencies in a compact picture. Building on the growth-share matrix Economics framework, we identified the strategic direction of PHS for each of the analysed countries.JRC.C.2-Energy Efficiency and Renewable

ACS Style

Ioannis Kougias; Sandor Szabo. Pumped hydroelectric storage utilization assessment: Forerunner of renewable energy integration or Trojan horse? Energy 2017, 140, 318 -329.

AMA Style

Ioannis Kougias, Sandor Szabo. Pumped hydroelectric storage utilization assessment: Forerunner of renewable energy integration or Trojan horse? Energy. 2017; 140 ():318-329.

Chicago/Turabian Style

Ioannis Kougias; Sandor Szabo. 2017. "Pumped hydroelectric storage utilization assessment: Forerunner of renewable energy integration or Trojan horse?" Energy 140, no. : 318-329.

Review
Published: 30 November 2017 in Urban Science
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A smarter transport system that caters for social, economic and environmental sustainability is arguably one of the most critical prerequisites for creating pathways to more livable urban futures. This paper aims to provide a state-of-the-art analysis of a selection of mobility initiatives that may dictate the future of urban transportation and make cities smarter. These are mechanisms either recently introduced with encouraging uptake so far and much greater potential to contribute in a shift to a better transport paradigm or still in an embryonic stage of their development and yet to be embraced as powerful mechanisms that could change travel behaviour norms. Autonomous and connected vehicles are set to revolutionise the urban landscape by allowing machines to take over driving that for over a century has been exclusively a human activity, while electrical vehicles are already helping decarbonising the transport sector. Bus rapid transit has been steadily reinventing and rebranding conventional bus services revitalising the use of the humblest form of public transport, while hyperloop is an entirely new, disruptive, and somewhat provocative, travel mode proposition based on the use of sealed tube systems through which pods could travel free of air resistance with speeds exceeding 1000 km/h. Shared use mobility mechanisms like car-sharing, ride-sharing, ride-sourcing and public bicycles can help establishing a culture for using mobility resources on an as-needed basis, while mobility-as-a-service will take this sharing culture a step further, offering tailored mobility and trip planning packages that could entirely replace the need for privately owned modes of transport.

ACS Style

Alexandros Nikitas; Ioannis Kougias; Elena Alyavina; Eric Njoya Tchouamou. How Can Autonomous and Connected Vehicles, Electromobility, BRT, Hyperloop, Shared Use Mobility and Mobility-As-A-Service Shape Transport Futures for the Context of Smart Cities? Urban Science 2017, 1, 36 .

AMA Style

Alexandros Nikitas, Ioannis Kougias, Elena Alyavina, Eric Njoya Tchouamou. How Can Autonomous and Connected Vehicles, Electromobility, BRT, Hyperloop, Shared Use Mobility and Mobility-As-A-Service Shape Transport Futures for the Context of Smart Cities? Urban Science. 2017; 1 (4):36.

Chicago/Turabian Style

Alexandros Nikitas; Ioannis Kougias; Elena Alyavina; Eric Njoya Tchouamou. 2017. "How Can Autonomous and Connected Vehicles, Electromobility, BRT, Hyperloop, Shared Use Mobility and Mobility-As-A-Service Shape Transport Futures for the Context of Smart Cities?" Urban Science 1, no. 4: 36.

Journal article
Published: 01 November 2017 in Science of The Total Environment
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Floods are among Earth's most common natural hazards, and they cause major economic losses and seriously affect peoples' lives and health. This paper addresses the development of a flood susceptibility assessment that uses intelligent techniques and GIS. An adaptive neuro-fuzzy inference system (ANFIS) was coupled with a genetic algorithm and differential evolution for flood spatial modelling. The model considers thirteen hydrologic, morphologic and lithologic parameters for the flood susceptibility assessment, and Hengfeng County in China was chosen for the application of the model due to data availability and the 195 total flood events. The flood locations were randomly divided into two subsets, namely, training (70% of the total) and testing (30%). The Step-wise Weight Assessment Ratio Analysis (SWARA) approach was used to assess the relation between the floods and influencing parameters. Subsequently, two data mining techniques were combined with the ANFIS model, including the ANFIS-Genetic Algorithm and the ANFIS-Differential Evolution, to be used for flood spatial modelling and zonation. The flood susceptibility maps were produced, and their robustness was checked using the Receiver Operating Characteristic (ROC) curve. The results showed that the area under the curve (AUC) for all models was > 0.80. The highest AUC value was for the ANFIS-DE model (0.852), followed by ANFIS-GA (0.849). According to the RMSE and MSE methods, the ANFIS-DE hybrid model is more suitable for flood susceptibility mapping in the study area. The proposed method is adaptable and can easily be applied in other sites for flood management and prevention.

ACS Style

Haoyuan Hong; Mahdi Panahi; Ataollah Shirzadi; Tianwu Ma; Junzhi Liu; A-Xing Zhu; Wei Chen; Ioannis Kougias; Nerantzis Kazakis. Flood susceptibility assessment in Hengfeng area coupling adaptive neuro-fuzzy inference system with genetic algorithm and differential evolution. Science of The Total Environment 2017, 621, 1124 -1141.

AMA Style

Haoyuan Hong, Mahdi Panahi, Ataollah Shirzadi, Tianwu Ma, Junzhi Liu, A-Xing Zhu, Wei Chen, Ioannis Kougias, Nerantzis Kazakis. Flood susceptibility assessment in Hengfeng area coupling adaptive neuro-fuzzy inference system with genetic algorithm and differential evolution. Science of The Total Environment. 2017; 621 ():1124-1141.

Chicago/Turabian Style

Haoyuan Hong; Mahdi Panahi; Ataollah Shirzadi; Tianwu Ma; Junzhi Liu; A-Xing Zhu; Wei Chen; Ioannis Kougias; Nerantzis Kazakis. 2017. "Flood susceptibility assessment in Hengfeng area coupling adaptive neuro-fuzzy inference system with genetic algorithm and differential evolution." Science of The Total Environment 621, no. : 1124-1141.

Journal article
Published: 01 September 2017 in Renewable and Sustainable Energy Reviews
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Local urban planning has become concerned over clean energy technologies development on greenfield land that may lead to competition in land use. Solar photovoltaic systems on agriculture land is an indicative example of this disputed strategy. At the same time closed landfills and their post-closure management pose environmental, economic and land value concerns at the local authorities. In the present work we analyse the concept of solar photovoltaic system installation in closed landfills. This practice has already received attention and the present article provides an overview of existing installations as well as assessment of the existing potential. Moreover, it introduces a methodology that geoanalyses closed sites, evaluates them in a hierarchical manner and suggests the appropriate PV technology for each site. The methodology has been applied in Hungary and revealed that 450 MWp of solar could be deployed in Hungarian closed landfills. EU-level projections provide estimations for the potential to range around 13 GWp. Such an approach may become a forefront instrument in the local, bottom-up sustainability policy planning.JRC.C.2-Energy Efficiency and Renewable

ACS Style

Sándor Szabó; Katalin Bódis; Ioannis Kougias; Magda Moner-Girona; Arnulf Jäger-Waldau; Gábor Barton; László Szabó. A methodology for maximizing the benefits of solar landfills on closed sites. Renewable and Sustainable Energy Reviews 2017, 76, 1291 -1300.

AMA Style

Sándor Szabó, Katalin Bódis, Ioannis Kougias, Magda Moner-Girona, Arnulf Jäger-Waldau, Gábor Barton, László Szabó. A methodology for maximizing the benefits of solar landfills on closed sites. Renewable and Sustainable Energy Reviews. 2017; 76 ():1291-1300.

Chicago/Turabian Style

Sándor Szabó; Katalin Bódis; Ioannis Kougias; Magda Moner-Girona; Arnulf Jäger-Waldau; Gábor Barton; László Szabó. 2017. "A methodology for maximizing the benefits of solar landfills on closed sites." Renewable and Sustainable Energy Reviews 76, no. : 1291-1300.

Journal article
Published: 14 December 2016 in Energies
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Supplying power to remote areas may be a challenge, even for those communities already connected to the main grid. Power is often transmitted from long distances, under adverse weather conditions, and with aged equipment. As a rule, modernizing grid infrastructure in such areas to make it more resilient faces certain financial limitations. Local distribution may face stability issues and disruptions through the year and—equally important—it cannot absorb significant amounts of locally-produced power. The European policy has underlined the importance of energy production in local level towards meeting energy security and climate targets. However, the current status of these areas makes the utilization of the local potential prohibitive. This study builds on the observation that in the vicinity of such mountainous areas, irrigation dams often cover different non energy-related needs (e.g., irrigation, drinking water). Transforming these dams to small-scale hydropower (SHP) facilities can have a twofold effect: it can enhance the local energy portfolio with a renewable energy source that can be regulated and managed. Moreover, hydropower can provide additional flexibility to the local system and through reservoir operation to allow the connection of additional solar photovoltaic capacities. The developed methodological approach was tested in remote communities of mountainous Greece, where an earth-fill dam provides irrigation water. The results show a significant increase of renewables’ penetration and enhanced communities’ electricity autarky.

ACS Style

Thomas Patsialis; Ioannis Kougias; Nerantzis Kazakis; Nicolaos Theodossiou; Peter Droege. Supporting Renewables’ Penetration in Remote Areas through the Transformation of Non-Powered Dams. Energies 2016, 9, 1054 .

AMA Style

Thomas Patsialis, Ioannis Kougias, Nerantzis Kazakis, Nicolaos Theodossiou, Peter Droege. Supporting Renewables’ Penetration in Remote Areas through the Transformation of Non-Powered Dams. Energies. 2016; 9 (12):1054.

Chicago/Turabian Style

Thomas Patsialis; Ioannis Kougias; Nerantzis Kazakis; Nicolaos Theodossiou; Peter Droege. 2016. "Supporting Renewables’ Penetration in Remote Areas through the Transformation of Non-Powered Dams." Energies 9, no. 12: 1054.

Journal article
Published: 01 October 2016 in Solar Energy
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Electricity production in Mediterranean islands currently depends heavily on imported fossil fuels. This strategy has several disadvantages and has been accused of hindering the islands’ sustainable development. In the present research an integrated approach to increase solar photovoltaic (PV) systems’ (SPVS) share in the energy mix of Mediterranean islands is presented, through installations on the available surface near existing water infrastructure. Accordingly, we have analyzed the potential of existing dams to accommodate SPVS on their downstream face as well as the option of SPVS over irrigation canals. We processed databases of water infrastructure in five big islands and developed a methodology to identify favorable locations. Using geographic information system (GIS) we processed the technical characteristics of each location and calculated the potential power capacity and the corresponding electricity production. Eleven dams were identified as “first-rate” locations with a total generating capacity of 63 MWp, producing 97 GW h of electricity annually, while additional 10 dams with less optimal conditions would add 30 MW of capacity and 33 GW h of annual production. We also identified an additional advantage of placing SPVS over irrigation canals, proposing additional 60 MWp capacity, namely the significant water savings through reduced evaporation.

ACS Style

Ioannis Kougias; Katalin Bódis; Arnulf Jäger-Waldau; Magda Moner-Girona; Fabio Monforti-Ferrario; Heinz Ossenbrink; Sandor Szabo. The potential of water infrastructure to accommodate solar PV systems in Mediterranean islands. Solar Energy 2016, 136, 174 -182.

AMA Style

Ioannis Kougias, Katalin Bódis, Arnulf Jäger-Waldau, Magda Moner-Girona, Fabio Monforti-Ferrario, Heinz Ossenbrink, Sandor Szabo. The potential of water infrastructure to accommodate solar PV systems in Mediterranean islands. Solar Energy. 2016; 136 ():174-182.

Chicago/Turabian Style

Ioannis Kougias; Katalin Bódis; Arnulf Jäger-Waldau; Magda Moner-Girona; Fabio Monforti-Ferrario; Heinz Ossenbrink; Sandor Szabo. 2016. "The potential of water infrastructure to accommodate solar PV systems in Mediterranean islands." Solar Energy 136, no. : 174-182.

Journal article
Published: 19 September 2016 in Nature Energy
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Pioneering approaches are needed to accelerate universal access to electricity while simultaneously transitioning to reliable, sustainable and affordable energy systems. In sub-Saharan Africa (SSA), the challenges lie in attracting the private sector to complement public investments. Here, we present an integrated ‘low-hanging-fruit’ approach aimed at boosting private investment and speeding up the deployment of renewable energy systems in SSA. We analyse the potential of existing energy infrastructure, where a significant upfront investment has already been made, to be exploited for electricity generation. We develop a comprehensive methodology to identify and select suitable locations in SSA and estimate their potential for exploitation. These locations have been further analysed in terms of power capacity potential, electricity output, investments needed and population to be benefited. This strategy to attract additional finance can easily be reproduced, engaging private investors while simultaneously helping to achieve the United Nations (UN) Sustainable Development Goals on energy.

ACS Style

Sandor Szabo; Magda Moner-Girona; Ioannis Kougias; Robert Bailis; Stephan Bodis. Identification of advantageous electricity generation options in sub-Saharan Africa integrating existing resources. Nature Energy 2016, 1, 16140 .

AMA Style

Sandor Szabo, Magda Moner-Girona, Ioannis Kougias, Robert Bailis, Stephan Bodis. Identification of advantageous electricity generation options in sub-Saharan Africa integrating existing resources. Nature Energy. 2016; 1 (10):16140.

Chicago/Turabian Style

Sandor Szabo; Magda Moner-Girona; Ioannis Kougias; Robert Bailis; Stephan Bodis. 2016. "Identification of advantageous electricity generation options in sub-Saharan Africa integrating existing resources." Nature Energy 1, no. 10: 16140.

Letter
Published: 01 August 2016 in Environmental Research Letters
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This paper describes the status quo of the power sector in Burkina Faso, its limitations, and develops a new methodology that through spatial analysis processes with the aim to provide a possible pathway for universal electricity access. Following the SE4All initiative approach, it recommends the more extensive use of distributed renewable energy systems to increase access to electricity on an accelerated timeline. Less than 5% of the rural population in Burkina Faso have currently access to electricity and supply is lacking at many social structures such as schools and hospitals. Energy access achievements in Burkina Faso are still very modest. According to the latest SE4All Global Tracking Framework (2015), the access to electricity annual growth rate in Burkina Faso from 2010 to 2012 is 0%. The rural electrification strategy for Burkina Faso is scattered in several electricity sector development policies: there is a need of defining a concrete action plan. Planning and coordination between grid extension and the off-grid electrification programme is essential to reach a long-term sustainable energy model and prevent high avoidable infrastructure investments. This paper goes into details on the methodology and findings of the developed Geographic Information Systems tool. The aim of the dynamic planning tool is to provide support to the national government and development partners to define an alternative electrification plan. Burkina Faso proves to be paradigm case for the methodology as its national policy for electrification is still dominated by grid extension and the government subsidising fossil fuel electricity production. However, the results of our analysis suggest that the current grid extension is becoming inefficient and unsustainable in order to reach the national energy access targets. The results also suggest that Burkina Faso's rural electrification strategy should be driven local renewable resources to power distributed mini-grids. We find that this approach would connect more people to power more quickly, and would reduce fossil fuel use that would otherwise be necessary for grid extension options.

ACS Style

M Moner-Girona; K Bódis; T Huld; Ioannis Kougias; S Szabó. Universal access to electricity in Burkina Faso: scaling-up renewable energy technologies. Environmental Research Letters 2016, 11, 084010 .

AMA Style

M Moner-Girona, K Bódis, T Huld, Ioannis Kougias, S Szabó. Universal access to electricity in Burkina Faso: scaling-up renewable energy technologies. Environmental Research Letters. 2016; 11 (8):084010.

Chicago/Turabian Style

M Moner-Girona; K Bódis; T Huld; Ioannis Kougias; S Szabó. 2016. "Universal access to electricity in Burkina Faso: scaling-up renewable energy technologies." Environmental Research Letters 11, no. 8: 084010.