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  • 1.
    Kovacs, Peter
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Hemlin, Olleper
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Persson, Jon
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Ollas, Patrik
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Larsson, David
    Femenias, Paula
    Chalmers University of Technology, Sweden.
    Thuvander, Liane
    Chalmers University of Technology, Sweden.
    Fahlen, Elsa
    Chalmers University of Technology, Sweden.
    Solceller som solavskärmning: Forskning, utveckling och demonstration2018Report (Other academic)
    Abstract [en]

    This report presents the implementation, results, discussion and conclusions of the project "Solar Shading in an Overall Perspective - From Energy Efficiency to Energy Production and from Product to Architecture". From 2015 to 2018, companies from the solar shading and solar PV industries, together with architects, researchers, contractors and property managers, have explored the area in order to increase interest, knowledge and acceptance for solar shading in various important target groups. A strong focus has been on the combination of solar cells and solar shadings in a product named electricity generating solar shading. Among the results is a literature summary and an experience feedback from eight installations, as well as a database of examples from about 70 solar-shading installations, most of which are built up of solar cells. A development effort in collaboration between solar shading- and solar PV companies has resulted in several new products that were evaluated in the project and now being demonstrated at RISE's office in Borås.

  • 2.
    Kovacs, Peter
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Ollas, Patrik
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Hemlin, Olleper
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Regelmässiga förutsättningar för takrenoveringar och solcellsinstallationer – en litteratursammanställning2018Report (Other academic)
    Abstract [en]

    The report presents a two-piece literature summary summarizing incentives and regulatory barriers to the renovation of multi-family houses, as well as general regulations, policies and other conditions for installations of solar cell installations. For developers and suppliers with interest in roof renovation with solar cells, the report aims to provide a picture of the conditions for such actions. The overall picture is that there is a rapid positive development of incentives and regulations specifically for solar cells. Additionally, regulations for energy efficiency and environmental certification can motivate property owners to carry out such combined approach.

    This report complements the project report for project "Environmental Roofing - Solar Energy Redevelopment" (Energy Agency Project Number: 41857-1) and is available via E2B2's website - http://www.e2b2.se/.

  • 3. Norberg, Ida
    et al.
    Pettersson, Ola
    RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
    Gustavsson, Alf
    Kovacs, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi.
    Boork, Magdalena
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi.
    Ollas, Patrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi.
    Widen, Joakim
    Lingfors, David
    Marklund, Jesper
    Ingman, David
    Jältorp, Hans
    Solel i lantbruket - realiserbar potential och nya affärsmodeller2015Report (Other academic)
  • 4.
    Ollas, Patrik
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Markusson, Caroline
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Persson, Jon
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Alfadel, Usama
    Soliga Energi, Sweden.
    Impact of Battery Sizing on Self-Consumption, Self-Sufficiency and PeakPower Demand for a Low Energy Single-Family House With PVProduction in Sweden2018In: 7th World Conference on Photovoltaic Energy Conversion (WCPEC-7), June 10-15, 2018, 2018Conference paper (Refereed)
    Abstract [en]

    This paper simulates the impact of battery sizingfor an actual nearly-zero energy (NZEB) single-family housewith solar PV located in Bor°as, Sweden. Simulations are done,using measurement data as an input, for three different batterydispatch algorithms with two different purposes; (i) peak powershaving and (ii) maximising system self-consumption (SC) andself-sufficiency (SS) of the solar PV. The results show that theoptimal battery storage size for this single-family house, givenits measured electrical loads and existing solar PV system isaround 7.2 kWh. System self-consumption and self-sufficiencyfrom generated solar PV increased with 24.3 percentage pointscompared to a reference case without battery. Furthermore,results show that increasing the battery size beyond 7.2 kWhonly results in minor performance gains.

  • 5.
    Ollas, Patrik
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Persson, Jon
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Markusson, Caroline
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Alfadel, Usama
    Soliga Energi, Sweden.
    Impact of Battery Sizing on Self-Consumption, Self-Sufficiency and Peak Power Demand for a Low Energy Single-Family House with PV Production in Sweden2018In: 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC, Institute of Electrical and Electronics Engineers Inc. , 2018, p. 618-623Conference paper (Refereed)
    Abstract [en]

    This paper simulates the impact of battery sizing for an actual nearly-zero energy (NZEB) single-family house with solar PV located in Boras, Sweden. Simulations are done,° using measurement data as an input, for three different battery dispatch algorithms with two different purposes; (i) peak power shaving and (ii) maximising system self-consumption (SC) and self-sufficiency (SS) of the solar PV. The results show that the optimal battery storage size for this single-family house, given its measured electrical loads and existing solar PV system is around 7.2 kWh. System self-consumption and self-sufficiency from generated solar PV increased with 24.3 percentage points compared to a reference case without battery. Furthermore, results show that increasing the battery size beyond 7.2 kWh only results in minor performance gains.

  • 6.
    Ossman, Lisa
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Ruud, Svein
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Markusson, Caroline
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Kovacs, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Ollas, Patrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Wendin, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Lane, Anna-Lena
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Stensson, Sofia
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Haglund Stignor, Caroline
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Alsbjer, Markus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Gustavsson, Lennart
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Förbrännings- och aerosolteknik.
    Nulägesanalys för satsning på NNE byggnader: slutrapport etapp 12012Report (Refereed)
    Abstract [sv]

    Det övergripande syftet med uppdraget är att få en detaljerad bild över byggnaders energiprestanda i Sverige. Den första etappen, förstudien, går ut på att beskriva metoden för hur denna analys ska göras. Som etapp 2 genomförs själva nulägesanalysen och slut¬ligen i etapp 3 analyseras resultat och slutsatser presenteras. I denna rapport redogörs för etapp 1, dvs metodbeskrivningen för nulägesanalysen. Nulägesanalysen ska senare kunna användas för att följa upp hur satsningar på Näranoll¬energibyggnader (NNE) påverkar energianvändningen i hela byggnadsbeståndet, inte bara i de faktiska demonstrationsprojekt som beviljas stöd och där uppföljning är betydligt enklare. Resultatet av nulägesanalysen, och den uppföljande analysen (planerad till 2015), ska i förlängningen kunna vara ett stöd när de nationella målnivåerna för näranollenergi-byggnader bestäms. I denna rapport redogörs för etapp 1, dvs metodbeskrivningen för nulägesanalysen. Rapporten beskriver vilka statistikkällor som finns idag samt en metod för hur dessa kan bidra till en mer detaljerad bild av byggnaders energiprestanda under ett valt referensår.

  • 7.
    Ruud, Svein
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Markusson, Caroline
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Nordén, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad, Byggnadsfysik och innemiljö.
    Karlsson, Henrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Lindgren, Mikael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Kommunikation.
    Ollas, Patrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Belysningen väg från el till rumstemperatur2013Report (Refereed)
  • 8.
    Sommerfeldt, Nelson
    et al.
    KTH Royal Institute of Technology, Sweden.
    Ollas, Patrik
    RISE - Research Institutes of Sweden, Built Environment.
    Reverse engineering prototype solar pv/thermal collector properties from empirical data for use in TRNSYS Type 5602017In: ISES Solar World Congress 2017 - IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2017, Proceedings, International Solar Energy Society , 2017, p. 1121-1132Conference paper (Refereed)
    Abstract [en]

    Using the known physical characteristics of a prototype photovoltaic-thermal (PVT) collector components and raw test data from a prematurely terminated ISO 9806 test, the objective of this study is to reverse engineer a thermal resistance value for the heat exchanger assembly for use in the theoretical TRNSYS model Type 560. Modeling is done using both TRNSYS as well as commercial heat transfer software TAITherm. Performance is measured by the mean absolute error and correlation of the outlet temperature and thermal power, as well as the differences in total thermal energy generated. The results show a thermal resistance of 0.005 to 0.010 m2 K W-1 in TAITherm and 0.010 to 0.040 m2 K W-1 in Type 560. TAITherm gives better statistical indicators which is likely due to the inclusion of thermal mass in the model. The results have informed prototype development and can be used in further systems modeling. © 2017. The Authors.

1 - 8 of 8
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  • nn-NO
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