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  • 1.
    Boork, Magdalena
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, Energy and Circular Economy.
    Enger, Johanna
    Lunds University, Sweden.
    Carolina, Hiller
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, Energy and Circular Economy.
    Wendin, Karin
    Kristianstad University, Sweden.
    Bright Communication: Belysningskommunikation med fokus på perception och energi2019Report (Other academic)
    Abstract [en]

    In order to promote an efficient use of energyfor lighting, while putting the user's perception and light comfort in focus,this project has developed methods and tools to communicate light and lighting.To ensure that light environments are designed from a user perspective,existing definitions of light quality, which are mainly based on technicalterms, have been supplemented with concepts and definitions of visual and emotionalcharacter of light. The lighting industry and professional purchasers have beeninvolved in all phases of the project in order to develop methods and toolsthat are well-grounded and applicable by different actors involved in theprocess from light planning to the implementation of lighting environments. Lighting accounts for a significant part of the total energy use in buildings,about 20 per cent for households and 40 per cent for premises. The energysaving potential is thus high. Moreover, Europe is facing a shift towards moreenergy efficient lighting as a result of both regulations and technologydevelopment. Still, Swedish consumers tend to prefer incandescent light, as itis perceived to provide better comfort compared to modern light sources.Therefore, in order to motivate property owners and consumers to convert tomore energy-efficient products, it is necessary to focus more on the visual andemotional qualities of light. Today, however, knowledge, concepts and tools to communicateand measure visual light quality are lacking. This challenge has been the motivationand starting point for the development of methods for assessing objective andsubjective light qualities for light sources, luminaires and light environmentswithin this project and to translate the results into tools targeting theindustry. The project has developed a draft communication tool based on the humanperception of light quality. The tool aims to constitute a neutralcommunication point and to supports both the lighting industry and professionalpurchaser, and thus also the end user. By reducing misunderstandings andincreasing the consensus between actors in different parts of the process fromlight planning to implementation, the tool is expected to promote lightenvironments that are both energy-efficient and provide attractive perceptionand comfort.

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  • 2.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Energianvändning i bostadsbebyggelsen - Brukarbeteendets betydelse: En översikt över energimätningar i 57 småhus2011Report (Refereed)
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  • 3.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Factors influencing residents’ energy use—A study of energy-related behaviour in 57 Swedish homes2015In: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 87, no Aug, p. 243-252Article in journal (Refereed)
    Abstract [en]

    The aim of this work has been to study everyday energy-related behaviour in homes. All residents in 57 Swedish homes, living in three housing areas, have recorded time diaries over a period of four days, during the same time period in each area. The technical differences between the houses are limited, as the building designs within each housing area are the same. On an aggregated level, the diary data has been analysed with and without typical power data of appliances as well as in relation to measured total energy use, indoor temperature and water usage. Cluster analyses have been performed in order to find characteristics of groups of residents with regard to their energy-related behaviour. Some of the findings were that residents report long time use/operating time for activities related to electronic equipment (45% of total reported time). Residents which used energy to a greater extent than others were characterised by performing activities with long operating times, in combination with high, and fairly high, typical power ratings. The majority of residents showed many different energy-related behaviours, which indicates that a number of strategies to influence the behaviours - not just one - will be required.

  • 4.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Influence of residents on energy use in 57 Swedish houses measured during four winter days2012In: Energy and Buildings, Vol. 54, p. 376-385Article in journal (Refereed)
    Abstract [en]

    The aim of this paper is to contribute to the knowledge about energy use in residential buildings. Field measurements were carried out in 57 electrically heated Swedish single-family houses, where the total energy use (i.e. electricity use for space heating, household electricity and electricity use for hot water production), indoor temperatures and water use were recorded during four winter days. Some of the findings were that differences for households' total energy use of similar houses were large. The characteristics of load curves clearly differ between weekdays and weekend days. The water use differs greatly for the households. This paper is part of a larger project where time use diaries were used in order to further link the energy use to residents' every day energy related behaviours. To get a better understanding of the energy use in our homes is a prerequisite to be able to both recognise the problems as well as the potentials of reaching energy goals of our society, leading to a decreased impact on the environment from the building sector.

  • 5.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Energiteknik (ET).
    Sustainable energy use in 40 houses. A study of changes over a ten-year period2003Report (Refereed)
  • 6.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Sustainable energy use in dwellings. Will the energy use increase with time?2002In: Proceedings of Sustainble Building 2002-09-23--09-25, Oslo, Norway, 2002Conference paper (Refereed)
  • 7.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Energiteknik (ET).
    Sustainable energy use in houses - Will the energy use increase with time?2003Report (Refereed)
  • 8.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Tenant Involvement for a Successful Renovation2013In: Conference Proceedings of Passivhus Norden 2013, 2013Conference paper (Refereed)
  • 9.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Energiteknik (ET).
    Tenant involvement strategies in retrofitting projects.2014Report (Refereed)
  • 10.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Vattenskadesäkra våtrum och installationer för ett hållbart byggande - inverkan av bygg och beslutsprocesser - en intervjustudie2010Report (Refereed)
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  • 11.
    Carolina, Hiller
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources. Lund University, Sweden.
    What have residents got todo with it?: Variations in energy use and energy-related behaviours in single-family houses2020Doctoral thesis, monograph (Other academic)
    Abstract [en]

    To achieve global energy goals, energy use in residential buildings must decrease. The implementation of technical measures is crucial but alone it is not sufficient; residents need to change their behaviour as well. However, households are not a homogeneous group in terms of their energy use and behaviour; rather, the use varies between households and over time. To promote energy savings in buildings, these variations need to be explored. The main objectives of this thesis were therefore to examine how energy use in single-family houses varied and how energy-related behaviours of households influenced the use of energy. The examined energy variations included changes over time, differences between households and variations of energy use throughout the day. The impact on these variations from the residents' activities and everyday behaviours was studied as well. A partially multidisciplinary approach was employed, whereby the following methods were combined: energy data analyses with interviews, energy performance measurements with calculations, and time-use diaries with energy measurements. A literature review was also conducted. The participating households lived in electrically heated, detached, single-family houses, built in Sweden in the 1980s. The residences spanned three different housing areas, each of which encompassed similar houses. The thesis showed that on an aggregated level, the energy use was stable over years of occupancy. An individual household's energy usage could, however, both increase and decrease over time, depending on several activities occurring over the years. On a group level, the daily electricity load curves differed between weekdays and weekend days, with clear power peaks in the morning and evening on weekdays. That is, during these peak hours the households contributed to potential power deficits in the energy system. Large differences between similar houses' energy use were demonstrated, similar to findings in other research. Differences of a factor of two to three between the highest and lowest energy usages were discovered; for water use, the differences were even greater, namely a factor of six. The studies found that there were many ways to be a high or a low consumer. That is, most of the households exhibited a range of different energy-related behaviours contributing to their energy use. In addition, there was a spread between households in how long they performed various activities. Moreover, the thesis showed a parallel use of electronic devices of the same type, which meant that each household member owned their own set of devices, potentially leading to an increased use of electricity at the household level. The findings in the thesis are of value when measures are designed to encourage residents to save energy and reduce power peaks. By field measurements, the empirical studies provided technical and resident-related information that is useful when estimating and verifying energy use of buildings. Additionally, the thesis contributed to the field of multidisciplinary research on household energy use as both technical and social perspectives were in focus – an approach that not only attempted to measure actual energy data, but also to reveal the behaviours that were concealed behind the data.

  • 12.
    Carolina, Hiller
    et al.
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Boork, Magdalena
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Enger, Johanna
    Konstfack University of Arts, Crafts and Design, Sweden.
    Wendin, Karin
    Kristianstad University, Sweden; University of Copenhagen, Denmark.
    User-Centric Measures of the Perceived Light Qualities of Lighting Products2023In: Emerging Science Journal, ISSN 2610-9182, Vol. 7, no 2, p. 609-628Article in journal (Refereed)
    Abstract [en]

    Nowadays, lighting planning is predominantly determined by the need to meet physically measurable requirements that are often based on current lighting standards. However, meeting the minimum technical requirements of the standards is no guarantee for a visually appealing light environment. Instead, requirements based on perceived light qualities also need to be included to achieve better user comfort. Taking perception-based qualities into consideration when creating a light environment is, for many, not an easy task. In addition, a common terminology for perceived light qualities is currently lacking, both in industry and in research. The aim of this paper is, therefore, to explore how perceived light qualities of white light sources can be described when employing user-centric measures. The focus was on the qualities of light colour and diffuse and distinct light since these qualities have a great impact on the visual impression of light. The perception was assessed by applying analytical sensory analysis to lighting products, a method found to be promising in previous work. The methodology is based on analytical measurement by the human senses, which is particularly valuable when developing a general terminology. Since sensory analysis is still quite new to the topic of lighting, the applicability of using the methodology to assess lighting in a real context was also investigated. The results of the studies showed that the perception of light qualities can be described using further concepts in addition to those currently used. For light colour, the concepts of reddish, bluish, yellowish, and greenish light colours proved suitable for providing a richer description of the quality. The concepts of diffuse and distinct light satisfactorily captured variations in light contrast produced by shadows, reflections, and sparkles. In addition, the studies revealed that analytical sensory analysis was applicable for assessing the perception of lighting in a real-world context. The latter means that knowledge gained in the laboratory can be translated into real environments. The user-centric measures investigated in this paper have contributed to the terminology related to perceived light qualities. These can complement the physical measures in lighting planning to promote light environments that are not only energy efficient and meet technical requirements, but also cater for increased user comfort. © 2023 by the authors.

  • 13.
    Carolina, Hiller
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Energiteknik (ET).
    Dolff, Carolina
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Energiteknik (ET).
    Hasselaar, Evert
    Bengtsson, Jenny
    RISE - Research Institutes of Sweden (2017-2019), Materials and Production, IVF.
    LET’S TALK ABOUT ENERGY. How to communicate energy issues to tenants2014Report (Refereed)
  • 14.
    Carolina, Hiller
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Elmroth, Arne
    Sustainable energy use in Swedish houses - A study of energy data and energy performance2005In: Proceedings of the 7th Symposium on Building Physics in the Nordic Countries, IBRI , 2005, , p. 227-234Conference paper (Refereed)
  • 15.
    Carolina, Hiller
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Hasselaar, Evert
    Gervind, Pernilla
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Tenant involvement in renovation for low energy performance2014In: Conference of World Sustainable Building Conference 2014, 2014, , p. 7Conference paper (Refereed)
  • 16.
    Carolina, Hiller
    et al.
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Isaksson, Charlotta
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources. University West, Sweden.
    Att utforma teknik med användarna i sikte: intervjuer med tillverkare av energitekniska installationer för småhus2021Report (Other academic)
    Abstract [en]

    Designing technology with users in mind – Interviews with manufacturers of heating and ventilation systems for single-family houses: Implementing technology with good energy performance in our homes is crucial to be able to reduce the energy use and achieve society's energy goals. However, technical measures alone are not enough; how residents interact with and use the technology is also important. The current study revolved around how different users are considered by technology manufacturers in the design of the technology. The objectives of the study were to examine manufacturers' motives and ideas about how heating and ventilation systems are designed and their views on the communication with end users. To explore this, interviews were conducted with manufacturers of heat pumps and ventilation units for single-family houses. The interview study showed that there are several challenges when manufacturers are to consider users' interaction with the technology. It regards designing the products, and especially their interfaces, for different types of users – where the manufacturers hold the view that many users do not have knowledge or understanding of the product. Another challenge is the frequency of interaction with the product, meaning that heating and ventilation systems are technologies that residents usually do not need to interact with very often. This can lead to an unfamiliarity with handling the technology when it is actually required. Also, manufacturers do not have much direct contact with end users, which becomes a particular challenge in shaping the communication and support for users, as well as gaining knowledge about users' real needs. Residents' expectations of high comfort in their homes regarding heating and hot water are anticipated to pose another challenge, especially in supporting households to save energy. The question is then: how are these challenges handled by the manufacturers and how do they design the technology with the users in mind? First and foremost, it was evident during the interviews that a prominent position among the manufactures is that users should not have to interact with the products to any great extent at all. This position has led the manufacturers to design the technology for minimal use and maintenance. But there is somewhat of a duality. While the manufacturers design for a minimal use, they also strive to keep up with recent developments and invest in modern user interfaces, Internet-connected products, and new mobile applications. Several manufacturers have, to varying degrees, involved users and considered their needs in the development of products and interfaces. This has resulted in functions in the interfaces that are adapted to the users. The functions are organised in the interfaces to, together with the use of intuitive icons, create clarity and simplicity for the users. Energy-saving settings, including "eco-mode" and functions to reduce "unnecessary" energy use, have also been developed by several manufacturers. The communication from manufacturers to end users is mostly one-way, but during the interviews there were examples of how manufacturers work in different ways to make information easily accessible to users. For the two-way communication with end users, other professionals, such as dealers and technicians, play an important role in providing households with relevant information and technical support related to the technology. Further developments with more connected products, better control systems, and a higher degree of automation were seen as responses to many of the above-mentioned challenges as well. From the manufacturers' perspectives and views of the users, the study has provided insights that can be useful also in future challenges and opportunities regarding human interaction with, often increasingly advanced, technology. It can involve directing households even more clearly towards energy-saving behaviours or how future services in the “energy-smart home” can be designed based on the needs of end users.

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  • 17.
    Carolina, Hiller
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Kurkinen, Eva-Lotta
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Svårigheter och möjligheter vid energieffektivisering2016In: Urban välfärd, effektiv energi / [ed] Ylva Norén Bretzer, Borea Bokförlag , 2016, 1Chapter in book (Other academic)
  • 18.
    Carolina, Hiller
    et al.
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Warneryd, Martin
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    D2.1 Sociala hinder & drivkrafter i ett inledande skede av två svenska energigemenskaper: Rapport i projektet Systemförändring med lokalt delad energi2023Report (Other academic)
    Abstract [sv]

    Omställningen mot ett förnybart energisystem har inom EU gjort energigemenskaper högaktuella sedan två direktiv, Förnybarhetsdirektivet och Elmarknadsdirektivet, beskrivit dessa som ett sätt att dela och göra gemensamma investeringar i lokala energiresurser. Denna studie tittar på två svenska piloter av begynnande energigemenskaper, Tamarinden och Hammarby Sjöstad, och har ett särskilt fokus på sociala hinder och drivkrafter för bildandet av dessa, vilket exempelvis inkluderar hur samverkan sker mellan deltagande aktörer. Syftet med studien är såldes att undersöka aktörers syn på att medverka i, eller bidraga till, energigemenskaper i ett inledande skede. Tamarinden är ett nybyggnadsområde i Örebro som inkluderar fem olika byggaktörer och leds av Örebro kommun. Hammarby Sjöstad är ett befintligt bostadsområde i Stockholm som inkluderar bostadsrättsföreningar samt näringsidkare, där initiativet kommer från intresseorganisationen ElectriCITY. I studien har under 2022 byggaktörer, bostadsrättsföreningar och näringsidkare intervjuats, samt respektive energi- och nätbolag i de två områdena. Resultaten visar att det finns flera drivkrafter till att delta i en energigemenskap såsom att erhålla ekonomiska fördelar, minska energianvändning, ökad hållbarhet samt innovationskraft. Olika förutsättningar i piloterna och hos de medverkande aktörerna har dock stor betydelse för möjligheten till aktivt deltagande samt i vilken grad energigemenskapen upplevs möjliggöra olika nyttor. De inkluderar storlek och ekonomisk situation hos aktörerna, fysiska förutsättningar såsom yta för installationer, kunskaper och erfarenheter av energiprojekt, och i vilken utsträckning det finns erfarenheter och vilja till samskapande. Dessa olikheter kan också vara en tillgång just vid delandet av lokala resurser då enskilda aktörers olika förutsättningar kan komplettera varandra. Hinder inkluderar en ökad komplexitet då samverkan krävs mellan flera olika aktörer, vilket är särskilt utmärkande för det initiala skedet vid bildandet som kräver stort engagemang och förtroendeskapande processer. Andra hinder rör osäkra investeringar, framtida marknadsutveckling och hur kostnads- och intäktströmmarna ser ut, samt hur delning kommer te sig i praktiken med liknande brukarprofiler, liksom hur engagemanget upprätthålls på sikt i energigemenskapen. I det initiala skedet är det tydligt att en avgörande faktor har varit de koordinerande och drivande aktörerna i båda piloterna. I Hammarby Sjöstads fall är denna organisation ElectriCITY och viktiga beståndsdelar i detta ledarskap har varit kunskapsförmedling, leverantörsnätverk samt aktiviteter för att främja deltagande och engagemang hos de boende i området. För Tamarinden är det Örebro kommun tillsammans med ÖrebroBostäder som lett processen framåt där framtagande av kunskaper för beslutsunderlag samt en formell samverkansstruktur för de olika byggaktörerna har varit viktiga. De intervjuade energi- och nätbolagen följer utvecklingen av energigemenskaper med intresse och försöker hitta sin roll relaterat till dessa lokala organisationer. Dock lyfts ett antal utmaningar rörande kunskaps- och ansvarsfrågor kring investeringar, drift av det lokala energisystemet samt effekter på det kringliggande elnätet från energigemenskaperna. Slutligen finns det i denna studie en mängd insikter och en bredd i både förutsättningar och typer av aktörer som ingår i de båda piloterna vilket tillsammans med forskningsprojektets övriga resultat och uppföljande studier bereder väg för konkreta medskick till aktörer och organisationer som önskar bilda energigemenskaper i framtiden.

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  • 19.
    Carolina, Hiller
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Built Environment.
    Wendin, Karin
    RISE - Research Institutes of Sweden (2017-2019), Bioscience and Materials, Agrifood and Bioscience.
    Nilsson Tengelin, Maria
    RISE - Research Institutes of Sweden (2017-2019), Safety and Transport, Measurement Science and Technology.
    Utveckling och tillämpning av sensoriska metoder för objektiva belysnings-bedömningar, del I2017Report (Other academic)
    Abstract [sv]

    I dag finns tekniska belysningsstandarder som inkluderar parameterar så som ljusstyrka, jämnhet och luminans. Det som saknas är krav som grundar sig på människors upplevelser av belysning och ljusmiljöer. Att få med den upplevelsebaserade dimensionen skulle betyda ett helhetstänk som förmodligen skulle gynna både ljuskomforten och än mer energieffektiva ljusmiljöer och produkter. Att beskriva upplevda belysningsparametrar har hittills visat sig inte vara helt enkelt, och här saknas både kunskap och en gemensam begreppsvärld inom branschen; något som hämmar fastighetsägare att ställa lämpliga krav vid en upphandling liksom belysningstillverkare att utveckla produkter för nya marknader och tillämpningar. Det övergripande syftet med detta forskningsprojekt är att utveckla och tillämpa sensoriska metoder på belysning. Till skillnad från tidigare metoder möjliggör sensoriska metoder objektiva bedömningar av upplevda belysningsparametrar. Syftet med försöken som redovisas i denna delrapport är att vidareutveckla och testa metoden ytterligare. Detta görs genom att nya armaturer testas liksom att försök utförs i en ny verklig kontext (kontorsmiljö). Försöken bygger vidare på resultat från tidigare försök som har rapporterats om i (Boork et al, 2017).

    En analytisk panel bestående av åtta personer, som uppfyllde särskilda urvalskriterier, har tidigare rekryterats och dessa personer tränades nu för detta specifika delprojekt för att bedöma belysningsprodukter i ett multisensoriskt laboratorium på RISE Research Institutes of Sweden i Borås. Metodutvecklingen fokuserade särskilt på en effektiv träningsprocedur, hantering av ögats adaption, samt bedömning av färg och skuggningar. Förutom laboratorieförsök undersöktes möjligheten att genomföra analytiska bedömningar i en verklig kontext med samma försöksuppställning och panel.

    Resultaten visade att det är möjligt att använda sensorisk metodik för att genomföra objektiva belysningsbedömningar även för de testade belysningsprodukterna, dvs mindre LED-spotlights. Signifikanta skillnader identifierades mellan de olika armaturerna och som i tidigare försök spelade färgtemperaturen en stor roll för flera av de bedömda egenskaperna; inte minst förstås för ljuskällans gulhet och för läsbarhet (textkontrasten). Liksom i tidigare försök fanns det samband mellan de fysikaliska mätningarna och sensoriska bedömningarna, men inte för alla egenskaper, vilket visar att fysikaliska och sensoriska mätningar ger kompletterande information om belysning.  Vidare visade bedömningsförsök i en verklig kontext att likvärdiga resultat uppnåddes som i laboratoriet, om ändock något spretigare och inte heller lika entydiga i jämförelse med verklig kontext i tidigare försök.

    Den genererade kunskapen väntas på sikt bidra till utveckling av verktyg som stödjer kommunikationen mellan olika professioner inom ljusdesign och planering och på så vis främja mer önskvärda och energieffektiva ljusmiljöer.

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    Sensoriska_metoder_belysning-del_I_SP_Rapport_2017.23
  • 20.
    Enger, J
    et al.
    University of Arts, Crafts and Design, Sweden .
    Wendin, Karin
    Kristianstad University, Sweden; University of Copenhagen, Denmark; .
    Carolina, Hiller
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    PERCEPTUAL METRICS FOR LIGHT QUALITY IN SPATIAL ENVIRONMENTS2023Conference paper (Other academic)
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  • 21.
    Hiller, Carolina
    et al.
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Wendin, Karin
    Kristianstad University, Sweden; University of Copenhagen, Sweden.
    Enger, J
    University of Arts, Crafts and Design, Sweden.
    THE PERCEPTION OF LIGHT COLOUR IS RELATIVE – A PILOT STUDY DESCRIBING PERCEIVED LIGHT COLOUR2023Conference paper (Refereed)
  • 22.
    Isaksson, Charlotta
    et al.
    University West, Sweden.
    Carolina, Hiller
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, Energy and Circular Economy.
    Lane, Anna-Lena
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, Energy and Circular Economy.
    Active, passive, non-existing or conditional?: Social relations shaping energy use at workplaces2019In: Energy Research & Social Science, ISSN 2214-6296, E-ISSN 2214-6326, Vol. 51, p. 148-155Article in journal (Refereed)
    Abstract [en]

    Energy efficiency concerns the entire workplace and a cooperative approach is important for achieving ambitious energy reduction targets. Despite this, many organisations still mainly regard energy efficiency as a technical issue involving just a few specialists. A focus on the social relations and processes that shape work on energy issues is lacking. The aim of this paper is to illuminate and explore social relations between the staff driving energy issues and their co-workers. The analysis presented is based upon two features shaping their mutual engagement for reducing energy use: the communication strategy on energy issues undertaken by the workplace and the support for energy efficiency and conservation among the staff. The study provides insights gained from an interview study done in a Swedish organisation as well as from social science research in the field. The result is a conceptual framework that describes four relationships between the drivers of change and their co-workers. These relationships are characterized as active, passive, non-existing and conditional engagement in energy efficiency and conservation. The framework can be used as a tool for identifying social constraints and possibilities for reducing the use of energy at workplaces as well as in other contexts.

  • 23.
    Isaksson, Charlotta
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Built Environment. University West, Sweden.
    Carolina, Hiller
    RISE - Research Institutes of Sweden (2017-2019), Built Environment.
    Lane, Anna-Lena
    RISE - Research Institutes of Sweden (2017-2019), Built Environment.
    Kommunikation för hållbart arbete med energieffektivisering: En kunskapssammanställning om samverkan och kommunikation om energifrågor inom organisationer och företag2017Report (Other academic)
    Abstract [en]

    Based on social and behavioural research, this project compile knowledge on energy management in organisations and companies. The purpose has been to examine how communication and collaboration within organisations and companies can be strengthened in order to promote sustainable energy management.

    The literature demonstrates that energy efficiency is not of strategic importance for organisations and companies. It is not prioritised by the management, who do not invest in cost effective energy measures. The employees regard energy as an implied right and the facility managers’ ability to influence energy issues are restricted, as well as their time and resources to work with it. Poor communication between the various actors within the company give rise to conflicting goals between different interests, and a belief that energy efficiency is something a single person, a technician, occasionally works with. Companies and organisations with a successful energy strategy make it into an issue that the entire organisation addresses. They engage more people and more aspects of their activities while striving for sustainability. It puts the focus on collaboration and communication.

    This project presents guidelines and recommendations about communication that can serve as support for considering energy efficiency measures and energy savings efforts. We structure these into three steps. Messages stating that energy efficiency is a priority and of concern for everyone. Approaches which highlight how energy efficiency can be communicated through for instance guidelines, dialogues, education, and visualization. These approaches should be adapted and incorporated into the companies’ activities and the daily work routines of the employees. Feedback on the use of energy showing to what extent the efforts made are effective and leads to a positive result. Research demonstrates that the more people who are involved in the work on energy efficiency, the better the results tend to be. Good results are, in turn, an important incentive for the continuous work on energy issues.

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  • 24.
    Klingberg, Josefine
    et al.
    RISE Research Institutes of Sweden, Built Environment, Infrastructure and concrete technology.
    Carolina, Hiller
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Renström, Sara
    RISE Research Institutes of Sweden, Digital Systems, Data Science.
    Gladh, Robert
    RISE Research Institutes of Sweden, Built Environment, Infrastructure and concrete technology.
    Dahlberg, Kristina
    RISE Research Institutes of Sweden, Built Environment, Infrastructure and concrete technology.
    Månsson, Anna
    RISE Research Institutes of Sweden, Built Environment, System Transition and Service Innovation.
    Marklund, Lars
    RISE Research Institutes of Sweden.
    Effektiv minskning av vattenanvändning i hushåll2023Report (Other academic)
    Abstract [en]

    Effective decrease of water use in households 

    This is the final report of a preparatory project which has aimed to identify and characterize methods which can be used to achieve a reduced usage of water for households in Sweden. This is so that the methods that give the most effect can be implemented. The project has also aimed to produce conditions for an implementation project so that methods can be tested and evaluated in a practical manner. The project’s long term goal is to create a system transfer and to reduce the water usage in Swedish households from 140 to 100 liters per person and per day. Getting individuals to change their behavior and reduce their water use is complex as several factors affect their water use today and the conditions for reducing water use. Several studies have reported differences between households with the highest and lowest consumption of water by a factor of four. The individual differences in water use per person can be equally as large. The variations in water use can be explained by several factors, such as the size of household, type of residence and the efficiency of the appliances. Besides these factors, there are also large variations in water related behaviors such as routines for showering and doing dishes. To identify methods with potential to make water use for households in Sweden more efficient, an oversight of projects, initiatives and previous research have been carried out with focus towards: • Decreased water usage on a national level • Decreased water usage on an international level • Decreased energy and water consumption through behavior change • Changes in behavior for citizens with regards to a sustainable usage of resources This analysis has landed in four methods to affect the households water use, which are: • Policy and legislation • Financial incentives • Communication • Technical solutions There is limited experience regarding the water saving potential that the different methods, and combinations of them, have in Sweden. The study shows that the method which is mainly used in Sweden is different forms of communication, even though communication seemingly has a limited effect. International studies show that water saving measures, such as water effective techniques and requirements for measuring water consumption, lead to a good outcome. For future studies we suggest that communication is combined with other methods and that more innovative methods are tested in situations that are as close to realistic situations as possible. This is important to understand what the effects will be in practice, and what the consequences will be for other important implementation parameters such as for example cost of implementation and environmental sustainability. We also see an obstacle in the lack of data that show the water use in households. In this project we have created conditions to test and evaluate solutions by using a digital water gauge with a high level of collection frequency. The water gauge is installed in a chosen villa area in the municipality of Kungsbacka.

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  • 25.
    Lundh, Magdalena
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Carolina, Hiller
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Energianvändning i hemmet – Vardagliga aktiviteter2011Report (Other (popular science, discussion, etc.))
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  • 26.
    Rex, Emma
    et al.
    RISE Research Institutes of Sweden, Built Environment, System Transition and Service Innovation.
    Hallquist, Lukas
    RISE Research Institutes of Sweden, Built Environment, System Transition and Service Innovation.
    Karlsson, Bodil
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Carolina, Hiller
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Alguren, Peter
    RISE Research Institutes of Sweden, Built Environment, System Transition and Service Innovation.
    Hållbarhetseffekter av ljus som tjänst2022Report (Other academic)
    Abstract [sv]

    Inom cirkulär ekonomi är funktionsförsäljning en affärsmodell som väntas ge incitament för tillverkare att göra produkter som håller längre och använder färre resurser över tid, och även säkerställer återbruk och återvinning vid end-of-life. Inom belysning kan detta exempelvis ta uttryck i att sälja ljus som tjänst. Denna rapport går igenom olika hållbarhetsaspekter relaterade till belysning, såväl miljömässiga som sociala och ekonomiska, och hur de skulle kunna påverkas av ett skifte i affärsmodell från traditionellt linjärt produktköp till ljus som tjänst. Arbetet har haft fokus på allmänbelysning inomhus i skolor och kontor i Sverige och fokuserat på områden där ett skifte i affärsmodell skulle kunna ha inverkan på hållbarhet. Det finns många olika strategier för att öka cirkularitet inom belysning, från cirkulärt anpassad hårdvara till ändrade affärsmodeller. I denna rapport används företaget Brightecos erbjudande av ljus som tjänst som exempel på en cirkulär affärsmodell, och diskuterar hur affärsmodellen kan påverka förutsättningar för hållbarhet relativt traditionellt linjärt produktköp. De exempel som studerats indikerar att ljus som tjänst i dagsläget inte är företagsekonomiskt fördelaktigt, sett till enbart kostnader för belysning. Ur ett större hållbarhetsperspektiv där även effekter på miljö, välbefinnande och samhällsekonomi räknas in, är det däremot troligen att föredra. De största miljövinsterna med Brighecos modell är dess potential att minska resursanvändning och avfall, stimulera teknikbyte till LED och minska risk för överinstallation av produkter. Samtidigt innebär affärsmodellen en ökad sannolikhet för att belysningsfrågor uppmärksammas och anpassningar görs för ökat välbefinnande hos användarna. Detta skulle kunna leda till betydande besparingar för såväl organisationer som samhälle, men det är effekter som är svåra att mäta och det råder således stor osäkerhet på storheterna. De potentiella fördelar för ekonomi, miljö och välbefinnande som denna rapport pekat på när det gäller ljus som tjänst är möjliga att uppnå även på andra sätt, exempelvis genom en kombination av olika produkter och tjänster. Ljus som tjänst är dock en affärsmodell som ökar förutsättningarna för att denna typ av åtgärder blir av, inte minst i organisationer som kanske inte själva har stark belysningskompetens.

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  • 27.
    Wendin, Karin
    et al.
    Kristianstad University, Sweden; University of Copenhagen, Denmark.
    Hiller, Carolina
    RISE Research Institutes of Sweden, Built Environment, Energy and Resources.
    Enger, J
    University of Arts, Crafts and Design, Sweden.
    PERCEPTION OF LIGHT QUALITIES – A DESIGNED STUDY ON LIGHT SOURCES IN COMBINATIONS2023Conference paper (Other academic)
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