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  • 1.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    From Passive to Active Electric Distribution Networks2016Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Large penetration of distributed generation from variable renewable energy sources, increased consumption flexibility on the demand side and the electrification of transportation pose great challenges to existing and future electric distribution networks. This thesis studies the roles of several actors involved in electric distribution systems through electricity consumption data analysis and simulation models. Results show that real-time electricity pricing adoption in the residential sector offers economic benefits for end consumers. This occurs even without the adoption of demand-side management strategies, while real-time pricing also brings new opportunities for increasing consumption flexibility. This flexibility will play a critical role in the electrification of transportation, where scheduled charging will be required to allow large penetration of EVs without compromising the network's reliability and to minimize upgrades on the existing grid. All these issues add significant complexity to the existing infrastructure and conventional passive components are no longer sufficient to guarantee safe and reliable network operation. Active distribution networks are therefore required, and consequently robust and flexible modelling and simulation computational tools are needed for their optimal design and control. The modelling approach presented in this thesis offers a viable solution by using an equation-based object-oriented language that allows developing open source network component models that can be shared and used unambiguously across different simulation environments. 

  • 2.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Barberis, Stefano
    University of Genoa, Italy.
    Traverso, Alberto
    University of Genoa, Italy.
    Kyprianidis, Konstantinos
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Vassileva, Iana
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Open-Source Modelling and Simulation of Microgrids and Active Distribution Networks2015Inngår i: Sustainable Places 2015, Conference Proceedings, Sigma Orionis , 2015, s. 91-99Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Distributed generation, and active distribution networks constitute an economic and technically viable alternative for reducing green house gases emissions and increase the use of renewable energy sources in local distribution grids. These active networks allow replacing large generators, usually located far from the consumption loads, thus considerably minimizing distribution losses and increase renewable energy penetration. However, designing and successfully controlling these complex networks, becomes a great engineering challenge; most computational modeling and simulation tools available for these systems are either focused on the individual generation components themselves, or the economic dispatch of multiple generators. Moreover, these tools often rely on closed source commercial software that use manufacturers' data for predefining the parameters of the models' components. This approach does not provide enough flexibility to users, since often is not possible to adjust these parameters. This paper presents object- oriented, component-based, open software components for simulating and optimizing the operation of active distribution networks, including multiple distributed generators and energy using the Modelica open-source modeling language. 

  • 3.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Danilov, D. L.
    University of Technology Eindhoven, Eindhoven, MB, Netherlands.
    Ghaviha, Nima
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Notten, P. H. L.
    University of Technology Eindhoven, Eindhoven, MB, Netherlands.
    Zimmerman, Nathan
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Battery technologies for transportation applications2016Inngår i: Technologies and Applications for Smart Charging of Electric and Plug-in Hybrid Vehicles, Springer International Publishing , 2016, s. 151-206Kapittel i bok, del av antologi (Annet vitenskapelig)
    Abstract [en]

    More than a fifth of the greenhouse emissions produced worldwide come from the transport sector. Several initiatives have been developed over the last few decades, aiming at improving vehicles’ energy conversion efficiency and improve mileage per liter of fuel. Most recently, electric vehicles have been brought back into the market as real competitors of conventional vehicles. Electric vehicle technology offers higher conversion efficiencies, reduced greenhouse emissions, low noise, etc. There are, however, several challenges to overcome, for instance: improving batteries’ energy density to increase the driving range, fast recharging, and initial cost. These issues are addressed on this chapter by looking in depth into both conventional and non-conventional storage technologies in different transportation applications. 

  • 4.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Ralf, Späth
    ABB.
    Smart Homes as Integrated Living Environments2015Inngår i: Handbook of Clean Energy Systems: Volume 4 - Intelligent Energy Systems: / [ed] Jinyue Yan, John Wiley & Sons, 2015Kapittel i bok, del av antologi (Fagfellevurdert)
  • 5.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Vassileva, Iana
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Technology capacity assessment tool for developing city action plans to increase efficiency in mid-sized cities in Europe2016Inngår i: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 88, s. 16-22Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Transition towards energy efficient cities requires an effective upgrade of all the different areas of urban energy production, distribution and use. The paper presents a method for collecting the information required for analysing the technical variation of strengths and weaknesses in infrastructure capabilities in European medium-sized cities, as well as to help identify best practices and tools for enhancing the energy performance of city energy systems.

  • 6.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Wallin, Fredrik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Vassileva, Iana
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Is real-time electricity pricing suitable for residential users without demand-side management?2016Inngår i: Energy Journal, ISSN 0195-6574, E-ISSN 1944-9089, Vol. 109, s. 310-325Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The smart metering infrastructure in Sweden allows electricity providers to offer electricity RTP (real time pricing) to homeowners, together with other dynamic pricing contracts across the country. These contracts are supposed to encourage users to shift power consumption during peak hours to help balance the load in the power system. Of all the available contracts in Sweden, monthly-average price holds the largest share, in response to the low electricity prices during the last three years. It is not clear if RTP will become a popular dynamic pricing scheme since daily price fluctuations might keep customers away from this type of contract. Literature review suggests that RTP adoption is only beneficial when combined with the use of customer demand flexibility, but it does not provide enough information about users adopting RTP without changing their electricity usage profile. This paper studies the economic impact if customers would shift to RTP contracts without adopting demand-side management. To achieve this, electricity costs from a large group of households were calculated and compared between both pricing schemes using the hourly consumption data of a 7-year period. Results suggest that the RTP electricity contract offer a considerable economic savings potential even without enabling consumer demand-side management. 

  • 7.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Ghaviha, Nima
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Zimmerman, Nathan
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Flow batteries use potential in heavy vehicles2015Inngår i: Electrical Systems for Aircraft, Railway and Ship Propulsion, ESARS, 2015, s. Article number 7101496-Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Although batteries have been used in personal vehicles for more than a hundred years, the cost of the technology, limitation in range, absence of sufficient recharging infrastructure and rapid development of internal combustion engines during the mid-twentieth century limited its use to very niche applications. More recently, a global need for reducing CO2 emissions from fossil fuel usage and the great developments in power systems as well as in battery technology offers electric vehicles the possibility to return to the market, not just for personal use but also for a wide variety of transportation applications. In the present paper, a feasibility study for using flow batteries in heavy vehicles, more specifically, construction equipment is presented. The authors used measured energy demand profiles for different operation conditions of a wheel loader and developed a simulation model for a vanadium redox flow battery to test the performance of this vehicle using a flow battery. Additionally, the authors did a short theoretical analysis for the potential for flow batteries in train transportation, focusing on the requirements and limitations of the technology for this application.

  • 8.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Vassileva, Iana
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Lundström, Lukas
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Thyghesen, Richard
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Beyond the building–understanding building renovations in relation to urban energy systems2016Inngår i: Journal of Settlements and Spatial Planning, ISSN 2069-3419, Vol. 2016, nr Spec. Iss. 5, s. 31-39Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    About 35% of Europe’s building stock is over 50 years old and consumes about 175 kWh/m2 for heating, between 3-5 times the amount required by the newly constructed buildings. Annually, between1 and 1.5% new buildings are built and only between 0.2 and 0.5% are removed, therefore the focus needs to be put on the renovation of the existing building stock. The implementation of energy conservation measures (ECMs) in the residential sector becomes a very important strategy to meet the EU´s 20% energy consumption reduction of the 20-20-20 goals. The main challenge, however, is to determine which of the ECMs strategies are the best to provide not just with the best energy consumption reduction, but also with the best environmental impact and economic benefits. This paper addresses this issue and analyses the impact of different ECMs by focusing not only on the buildings themselves, but on the energy supply network and the overall energy system as a whole. To achieve this, we review five case studies in Sweden that use different ECMs as well as other alternatives, such as: distributed generation (DG) and energy storage. Results suggest that although there is no standard protocol that would fit all renovation projects, the existing methodologies fall short to provide the best overall impact on the energy system and that a broader analysis of the local conditions should be carried out before performing large building renovation projects.

  • 9.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
    Wallin, Fredrik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
    Torstensson, Daniel
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
    Vassileva, Iana
    Facultad de Ingeniería, Universidad Tecnológica de Bolívar, Cartagena, Colomb.
    Energy Demand Model Design for Forecasting Electricity Consumption and Simulating Demand Response Scenarios in Sweden2012Inngår i: / [ed] J. Yan, 2012Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The introduction of a deregulated power system market and development of smart-metering technologies in Sweden, bring new opportunities for fully exploiting its power system efficiency and reliability, such as price-based demand response (DR) programs at a large scale for household, commercial and industrial users. 

    The deployments of these DR programs require, however, very accurate demand forecasting models. The traditional approach of obtaining the total energy use and peak demand does not offer the required detailed information. This article reviews several methodologies for forecasting electricity consumption from a bottom-up perspective in order to define the required parameters and structure for obtaining an energy model. This model will finally include energy usage data, behavioural parameters obtained from a survey conducted with 5 000 end-users in different Swedish distribution system operators’ areas, and physical conditions for the facilities (internal/external temperatures and insulation materials). This information is provided from previous research studies performed at Mälardalen University and Swedish electric utilities companies. 

    The obtained model should be able to adjust its parameters dynamically in order to simulate several demand-response scenarios based on four different strategies: time of use pricing, use of curtailable/interruptible rates, imposition of penalties for usage beyond predetermined levels, and real time pricing.

  • 10.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Wallin, Fredrik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Vassileva, Iana
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Economic Impact of Dynamic Electricity Pricing Mechanisms Adoption fo rHouseholds in Sweden2013Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Global smart metering market growth has increased significantly over the past few years and the trend is expected to continue. Smart metering technology enables energy consumption feedback and the adoption of dynamic pricing mechanisms that encourages users to shift power consumption from peak-use times to lower-use times, in order to help balance the load in the power system. In Sweden particularly, the introduction of the new legislation and adoption of remote meters in 2009, in combination with more flexible pricing schemes, offer a great opportunity for users to reduce energy consumption during peak times, increase their energy efficiency and therefore reduce their overall cost. More recently, in 2012, Swedish energy providers started offering hourly spot-based electricity price to homeowners in order give them access to pricing mechanisms that are closer to the real cost of electricity supply. Additionally to hourly pricing, other dynamic pricing contracts are available for consumers all across the country; however, conventional agreements that use fixed-rates for electricity are still the most common. This paper analyzes the economic impact for consumers, if dynamic pricing, enabled through smart metering technologies, is adopted. To achieve this, electricity costs from a large group of households were calculated, using users’ hourly consumption data with both conventional fixed rates and real time pricing, in order to understand their impact on customers’ bills. Obtained results suggest that real time pricing has great savings potential, especially for years where summer rainfall and winter conditions are within average. However, in order to increase savings and have them consistent year after year, changes in user time-of-use consumption profile are required. Moreover, this research work leads to further analysis on dynamic pricing combined with demand response in order to optimize electricity costs.

  • 11.
    Campillo, Javier
    et al.
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Wallin, Fredrik
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Vassileva, Iana
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Electricity Demand Impact from Increased use of Ground Sourced Heat Pumps2012Inngår i: IEEE PES Innovative Smart Grid Technologies Conference Europe, 2012, s. Artnr. 6465876-Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The use of ground-sourced heat pumps as main heating systems has increased in Sweden in the last fifteen years to the point that it is the country with the highest amount of GSHP in Europe. Heat pumps are chosen by many households due to their economic savings value; In contrast, electricity prices in Sweden have almost doubled since 2006, threatening their economic benefits. It is therefore, essential to understand GSHPs impact on the user´s electricity consumption and provide suitable demand-response programs that could help develop a model capable of forecasting consumption and provide decision support information to make the best use of the technology. This paper analyses questionnaire surveys and consumption patterns were evaluated for 322 households with installed GSHPs and different pricing schemes in order to increase the understanding of mass use of this type of heating system.

  • 12.
    Dahlquist, Erik
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Vassileva, Iana
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Lundström, Lukas
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Energy efficiency improvements by renovation actions: in Lagersberg and Råbergstorp, Stoke on Trent and Allingsås2016Rapport (Annet vitenskapelig)
    Abstract [en]

    This report covers evaluation of some renovation projects and compares energy saving effects versus renovation costs.

    It can be seen that advanced renovation to passive house standard is significantly more expensive than “normal” renovation, but also gives significant improvement by a 62 % reduction of total energy and 85 % reduction in heat demand. The cost associated with the renovation is somewhere in the range of 130–570 €/m2, depending on how the total renovation costs are split between energy and other aspects. Probably somewhere in-between is most correct. This can be compared to mostly better heat control by measuring temperature in every third apartment and controlling heat supply to keep a constant temperature. This gives the possibility to have a significantly lower set point, 21 ºC instead of 24 ºC as earlier. Together with some other actions, 34 % energy savings were achieved at a cost of 28 €/m2. Also renovations with significantly more actions were evaluated, where the cost also is in-between.

    From this we can conclude that with more advanced and costly renovations we can achieve very strong reductions, which may be feasible if the renovation demand is high anyhow, while cheap and low cost actions can be good enough for quite good buildings.

    Also behavior with respect to energy use was evaluated. We here can see that the use is very different in different apartments depending on behavior. Energy information actions were giving positive effects on energy demand for the majority of investigated tenants, while approximately 25 % did not reduce or even increased their consumption.

  • 13.
    Ghaviha, Nima
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Bohlin, Markus
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Review of Application of Energy Storage Devices in Railway Transportation2017Inngår i: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 105, s. 4561-4568Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Regenerative braking is one of the main reasons behind the high levels of energy efficiency achieved in railway electric traction systems. During regenerative braking, the traction motor acts as a generator and restores part of the kinetic energy into electrical energy. To use this energy, it should be either fed back to the power grid or stored on an energy storage system for later use. This paper reviews the application of energy storage devices used in railway systems for increasing the effectiveness of regenerative brakes. Three main storage devices are reviewed in this paper: batteries, supercapacitors and flywheels. Furthermore, two main challenges in application of energy storage systems are briefly discussed. 

  • 14.
    Kullman, M.
    et al.
    Eskilstuna Strängnäs Energy and Environment, Stockholm, Sweden.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Fertner, C.
    University of Copenhagen, Department of Geosciences and Natural Resource Management, Copenhagen, Denmark.
    Giffinger, R.
    Vienna University of Technology, Department of Spatial Planning, Vienna, Austria.
    Grosse, J.
    University of Copenhagen, Department of Geosciences and Natural Resource Management, Copenhagen, Denmark.
    Groth, N. B.
    University of Copenhagen, Department of Geosciences and Natural Resource Management, Copenhagen, Denmark.
    Haindlmaier, G.
    Vienna University of Technology, Department of Spatial Planning, Vienna, Austria.
    Kunnasvirta, A.
    Turku University of Applied Sciences, Environment and Business, Turku, Finland.
    Strohmayer, F.
    Vienna University of Technology, Department of Spatial Planning, Vienna, Austria.
    Haselberger, J.
    Hamburg University of Applied Sciences, Hamburg, Germany.
    Note: The PLEEC project–planning for energy efficient cities2016Inngår i: Journal of Settlements and Spatial Planning, ISSN 2069-3419, Vol. 2016, s. 89-92Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Globally, more than 50% of all people are living in cities today. Enhancing sustainability and efficiency of urban energy systems is thus of high priority for global sustainable development. The European research project PLEEC (Planning for Energy Efficient Cities) focuses on technological, innovative, behavioural and structural capacities of European medium-sized cities in their transition towards Energy Smart Cities. The variation of strengths and weaknesses of cities’ capabilities as well as practices and tools for enhancing energy efficient performance of urban energy systems were at the centre of the project. This short note summarises its main findings.

  • 15.
    Lindhult, Erik
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Read, S.
    TU Delft, Delft, Netherlands.
    Innovation capabilities and challenges for energy smart development in medium sized European cities2016Inngår i: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, nr 88, s. 205-211Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Transition towards becoming Energy smart city integrating different areas of energy production, distribution and use in a community requires a spectrum of capabilities. The paper reports on findings from the EU planning project PLEEC, involving six medium sized European cities. The purpose of the paper is to describe innovation capabilities and challenges in the complex, systemic innovation journey of cities in the transition to sustainability. A case of implementing an innovative project for electrical vehicles in Eskilstuna is presented illustrating both technological potentials and innovation challenges.

  • 16.
    Sun, Q.
    et al.
    Shandong University, Jinan, China.
    Li, Hailong
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Ma, Z.
    Beijing University of Posts and Telecommunications, Beijing, China.
    Wang, C.
    Tongji University, Shanghai, China.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Zhang, Q.
    China University of Petroleum, Beijing, China.
    Wallin, Fredrik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Guo, J.
    Beijing University of Posts and Telecommunications, Beijing, China.
    A Comprehensive Review of Smart Energy Meters in Intelligent Energy Networks2016Inngår i: IEEE Internet of Things Journal, ISSN 2327-4662, Vol. 3, nr 4, s. 464-479, artikkel-id 7365417Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The significant increase in energy consumption and the rapid development of renewable energy, such as solar power and wind power, have brought huge challenges to energy security and the environment, which, in the meantime, stimulate the development of energy networks toward a more intelligent direction. Smart meters are the most fundamental components in the intelligent energy networks (IENs). In addition to measuring energy flows, smart energy meters can exchange the information on energy consumption and the status of energy networks between utility companies and consumers. Furthermore, smart energy meters can also be used to monitor and control home appliances and other devices according to the individual consumer's instruction. This paper systematically reviews the development and deployment of smart energy meters, including smart electricity meters, smart heat meters, and smart gas meters. By examining various functions and applications of smart energy meters, as well as associated benefits and costs, this paper provides insights and guidelines regarding the future development of smart meters. 

  • 17.
    Torstensson, Daniel
    et al.
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Wallin, Fredrik
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Vassileva, Iana
    Campillo, Javier
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Large-Scale Energy Intervention Scenarios as a method investigating demand response potentials2012Konferansepaper (Fagfellevurdert)
    Abstract [en]

    It is often stated that electricity systems need further development in order to include the ambitious amount of renewable energy. Smart Grids are seen as an enabler for an electricity market with increased benefits for both consumers and environment. From a system level perspective, many advantages could be achieved by implementing these innovative technologies. Smart Grids are expected to be more flexible and could result in that expensive investments can be avoided. Furthermore, implementing smart metering could give consumers possibilities to obtain a better understanding of their own electricity consumption. The information could also help consumers to react on price signals by adjusting their consumption patterns. Increased knowledge usually increase awareness and could therefore be positive for energy efficiency activities.

    In order to investigate the potential for increased consumer participation in the electricity market with respect to demand-response and micro generation, a new evaluation method is proposed. In the project “Increased consumer power on the Nordic electricity market” large-scale energy intervention scenarios are being applied.

    The purpose of this it paper is to describe this methodology, its’ relation to other methods and the foreseen benefits to increase knowledge on the potential of demand-side participation in wider areas (e.g. cities and regions). In the experiment different social, economic and environmental incentives are evaluated in order to understand how they influence electricity consumption behaviour in the short term. The design of this new methodology is based on vast experiences of energy consumption surveys in residential consumer segment, feedback studies, focus groups and other consumer interaction methods.

  • 18.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi. Tecnol Bolivar Univ, Fac Engn, Cartagena 130001, Colombia..
    Adoption barriers for electric vehicles: Experiences from early adopters in Sweden2017Inngår i: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 120, s. 632-641Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Electric vehicles are considered as one of the most effective technologies for reducing current greenhouse gas emissions from the transport sector. Although in many countries, local and national governments have introduced incentives and subsidies to facilitate the electric vehicle market penetration, in Sweden, such benefits have been limited. Results from a survey carried out among private owners of electric vehicles are presented in this paper, including the analysis of the respondents socio-demographic characteristics, reasons for choosing an electric vehicle, charging locations and driving preferences, among others. The main results characterize current electric vehicle drivers as male, well-educated, with medium-high income; electric vehicles are used mainly for private purposes and charged at home during night time. Furthermore, the paper presents an analysis of the impact of large-scale penetration of electric vehicles on existing power distribution systems. The findings presented in this paper provide important insights for assuring a sustainable large-scale penetration of electric vehicles by learning from the experiences of early adopters of the technology and by analyzing the impact of different EV penetration scenarios on the power distribution grid.

  • 19.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Consumers' Perspective on Full-Scale Adoption of Smart Meters: A Case Study in Vasteras, Sweden2016Inngår i: Resources, E-ISSN 2079-9276, Vol. 5, nr 1, artikkel-id 3Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Large-scale deployment of reliable smart electricity metering networks has been considered as the first step towards a smart, integrated and efficient grid. On the consumer's side, however, the real impact is still uncertain and limited. This paper evaluates the consumer's perspective in the city of Vasteras, Sweden, where full implementation of smart meters has been reached. New services, such as consumption feedback and the possibility to choose dynamic electricity pricing contracts, have been available from the adoption of this infrastructure. A web-based survey evaluating customers' perception of these new services was carried out. The survey included consumers' personal information, preferences about the type of information and the frequency of delivery and the preference for electricity pricing contracts. The results showed that the electricity consumption information offered by distribution system operators (DSOs) today is not detailed enough for customers to react accordingly. Additionally, while variable pricing contracts are becoming more popular, the available pricing schemes do not encourage customers to increase their consumption flexibility. Therefore, more detailed information from the smart meters should be made available, including disaggregated electricity consumption per appliance that would allow consumers to have more control over their energy consumption activities.

  • 20.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Eskilstuna (Sweden) as an example of a smart city from an energy efficiency perspective.2014Konferansepaper (Fagfellevurdert)
  • 21.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Increasing energy efficiency in low-income households through targeting awareness and behavioral change2014Inngår i: Renewable energy, ISSN 0960-1481, E-ISSN 1879-0682, Vol. 67, s. 59-63Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The lack of energy awareness among energy consumers has been the main obstacle when it comes to domestic energy savings. In countries like Sweden where wages are high, energy awareness is based mainly on environmental concerns. However, energy awareness is usually amongst consumers with low income or foreign background.

    This article presents the results of the analysis of two groups of households, located in different cities in Sweden, all characterized by having low income. The obtained results and experience will be applied to some of the implementation stages of measures targeting different sustainability issues in other low-income neighborhoods in Sweden. Consumers are informed about different solutions and possibilities to save energy and tap-hot water with low cost or no cost measures. Results show that choosing households with high energy saving potential and selecting the most suitable (based on households' characteristics and needs) ways of providing energy consumption feedback, within the group are essential since consumption levels tend to increase when consumers realize they consume less than similar households. The majority of the consumers are retired or families with more than 2 children and their average annual electricity consumption is approximately 2000 kWh. It was found that the consumers' preferred ways for receiving consumption feedback were mainly letters and in-home displays; both environmental factors as well as money are important motivational factors to save energy; consumers are striving to reduce their electricity consumption and have the knowledge necessary to maintain low consumption, despite not being very interested in energy related topics. The main differences when comparing the answered questionnaires sent to all households were found between the groups (with different locations) rather than within the groups. The location of the households groups, the age of the consumers and the presence of children in the group affect the levels of energy related knowledge and should be considered when introducing domestic energy saving and efficiency strategies.

  • 22.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
    Dahlquist, Erik
    Increasing energy efficiency in low- income Swedish households through targeting awareness and behavior2013Konferansepaper (Fagfellevurdert)
  • 23.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Schwede, Sebastian
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Technology assessment of the two most relevant aspects for improving urban energy efficiency identified in six mid-sized European cities from case studies in Sweden2017Inngår i: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 94, s. 808-818Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The increasing population living in cities is leading to higher resource utilization, which strains the cities’ability to focus on sustainability. Adoption of different technologies can transform cities into ‘‘smartcities” that utilize energy in a more efficiently.This paper presents results from a technology assessment tool developed together with six mid-sizedEuropean cities. The main areas of focus have been evaluated based on the cities’ priorities: transportation(both public and private) and consumers’ perspectives on the use of smart electricity meters. The useof electric vehicles in Sweden, and a techno-economic evaluation of biogas-derived biomethane and electricityuse in public transportation have been analyzed. The main conclusions show an overall higher efficiencyfor biogas-derived electricity use in electric buses; a need for higher consumer engagementthrough more detailed information provision for both increasing EV market penetration and electricitysavings; and a need to establish detailed technology assessments for successful technology adoption incities.

  • 24.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Wallin, Fredrik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    COMPARING THE CHARACTERISTICS OF DIFFERENT HIGH-INCOME HOUSEHOLDS IN ORDER TO IMPROVE ENERGY AWARENESS STRATEGIES2013Konferansepaper (Fagfellevurdert)
  • 25.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    The citizens' role in energy smart city development2016Inngår i: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 88, s. 200-204Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The purpose of the paper was to investigate citizens' experiences and feedback related to strategies and products targeting energy savings and emission reduction in Sweden. Survey results presented in this paper showed that consumers did not make use of the advantages of the smart meters and that tailored feedback is necessary to help them save electricity. Moreover, despite the high satisfaction levels among electric vehicles owners, additional improvements (e.g. reliable charging infrastructure) and information are needed to attract potential owners. Effective information dissemination is thus a crucial part of increasing urban sustainability. 

  • 26.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling. Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Dahlquist, Erik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Wallin, Fredrik
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Energy consumption feedback devices’ impact evaluation on domestic energy use2013Inngår i: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 106, s. 314-320Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Household energy accounts for one of the major contributors to the countries energy balances. It has been shown, that an effective way to achieve energy saving in that sector, is by providing consumers with information and feedback. This measure increases home inhabitants’ awareness that leads to behavioral changes, and could help reduce energy consumption between 15% and 25% in some cases. Inhabitants’ energy use awareness is also crucial for the success of demand response programs; one of the most important features of smart-grid adoption for the current and upcoming smart cities.

    The effects of different feedback strategies and information devices in households located in different cities in Sweden have been evaluated in this paper, since the impact on users’ behavior of this feedback information vary depending on the way it is provided.

    Mobile text messages (SMSs) and digital displays placed in the building’s common areas did not cause any noticeable behavioral changes, while the use of a TV channel and personal in-home displays were the most popular devices amongst households with high incomes.

    This paper concluded that even though feedback helped reduce domestic energy consumption and induce behavioral changes, it only reaches the consumers interested in it. It is important therefore to provide customized information to the consumer and select precise feedback tools for specific household groups. Special attention should be paid to increasing the energy consumption awareness in households with low income levels.

  • 27.
    Vassileva, Iana
    et al.
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Thygesen, Richard
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Campillo, Javier
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    Schwede, Sebastian
    Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
    From Goals to Action: The Efforts for Increasing Energy Efficiency and Integration of Renewable Sources in Eskilstuna, Sweden2015Inngår i: Resources, E-ISSN 2079-9276, Vol. 4, nr 3, s. 548-565Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Cities’ energy usage accounts for two thirds of global primary energy consumption. Energy efficiency in urban areas is, therefore, one of the most important topics to consider when dealing with urban sustainability. This paper evaluates the goals for increasing energy efficiency and use of renewable energy sources in the areas of transportation, buildings and consumers’ awareness, as stated in the Climate action plan, for the municipality of Eskilstuna, Sweden. The efforts of the municipality to successfully reach their energy efficiency goals, are described in this paper including future perspectives. The results show that although the municipality counts with the advantage of owning and working together with the local housing company and energy provider, in order to reach the established goals, additional strategies need to be considered. For an increased use of renewable energy sources, analysis of rooftops suitable for photovoltaic (PV) installation should be carried out as well as the integration of goals for self-consumption. In the transport field, the city needs to prepare for large-scale electric vehicle (EV) market penetration and to consider different bike or car sharing options. Finally, more specific awareness campaigns are needed to engage the citizens in reducing their energy consumption and living a more sustainable life.

  • 28.
    Yan, Jinyue
    et al.
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Campillo, Javier
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Foster, Stephen
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    GLOBAL SOLAR PHOTOVOLTAIC INDUSTRY ANALYSIS WITH FOCUS ON THE CHINESE MARKET2009Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Several industries are shifting to sustainable business to the use of renewable resources and holdtheir accountable for the environmental and social responsibility including the mitigation ofgreenhouse gases, especially in clean power generation technologies. Solar power has shown asustained level of growth with an annual rate around 30% in the photovoltaic industry. Thispaper analyzes how solar power has attracted large investment Technological advancements andgrowth rates in China demonstrate how China is positioned to become the next world leader inmanufacturing, based on the literature survey and data collection, the relationship between marketof solar power stimulated by different policy incentives and the manufacturing development isdiscussed. The barriers such as investment in thin film, government support and coordination,solar cell efficiency and product quality etc, for the future development in China have also beenaddressed.

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