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Academic literature on the topic 'Batterilagring'
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Dissertations / Theses on the topic "Batterilagring"
Bagger, Toräng Adrian, and Olof Rickhammar. "Batterilagring för ökad självkonsumtion från solceller : En studie om lönsamheten hos batterilagring i den svenska bostadssektorn." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279696.
Full textThere is a growing demand for renewable power generation and efficient solutions to combine with renewables. Previous works have explored energy storage systems (ESS) and their profitability in various applications. There is an uncertainty about the profitability of ESS for increased self-consumption in Sweden. This thesis explores the profitability of battery energy storage systems (BESS) used for increased self-consumption for stakeholders with solar photovoltaics in the Swedish residential sector. A model based on levelized cost of storage (LCOS) was constructed, and varying input values were used for different scenarios. The results showed that the current cost of BESS is too high, with LCOS ranging between 1,68 SEK/kWh and 3,56 SEK/kWh depending on the stakeholder as well as input data. For profitability, a reduction of LCOS between 55% and 85% is needed. Furthermore, this thesis explores which variables have the greatest effect on a BESS’s profitability. A sensitivity analysis was conducted, where CAPEX, the number of battery cycles per year, WACC and tax reductions linked to electricity trading were identified as important variables. This thesis concluded that higher electricity prices in combination with reduced investment costs is needed to justify an investment in BESS. Besides increased self-consumption, other values are needed to justify an investment in a BESS in the near future.
Karacadag, Lutfi, and Carl Adam Persson. "Solceller och batterilagring i HFABs klimatsmarta flerbostadshus." Thesis, Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-44592.
Full textExamensarbetet gjordes i samarbete med Halmstad Fastighet AB. Två olika fastigheter med olika elanvändning har analyserats, där fokuset låg på att utvärdera nära-nollenergihus med solkraftsanläggningar och tillhörande batterilager för att undersöka lönsamhet och dimensionering som ska ligga till grund för framtida byggnationer. Båda fastigheterna är nära-nollenergihus men skiljer sig åt i användning av elenergi. Det är idag oklart hur förändringen av dimensioneringen av solkraftsanläggningen och batterilagret påverkar lönsamheten i två fastigheter med skilda användning av elenergi. Metoden är av kvantitativ karaktär. Simuleringsmodeller i programvaran Polysun skapades med två fastigheter och dess solkraftsanläggningar med tillhörande batterilager som referens.Utifrån simuleringarna gjordes lönsamhetsberäkningar för att beskriva skillnad i vinst vid förändring av dimensionering. Slutsatserna av arbetet är att den totala lönsamheten ökar ju större solkraftsanläggningen är oavsett elenergianvändning och batterilagret är idag inte lönsamt utan prisförändringar.
Bergqvist, Timmy. "Solenergi med energieffektiva byggnader och kostnadseffektiv lagring." Thesis, KTH, Data- och elektroteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146646.
Full textAl-imarah, Amena, and Elin Stenberg. "Tillämpning av batterilager som energitjänsten lastutjämnare : En studie om batterilagring för en medelstor abonnent i Varberg Energis elnät." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-33263.
Full textThis thesis, is a study of battery energy storage and its use as energy source and smoothening of power fluctuation. Studies have been made as a systematic review and a quantitative study. The study has consisted of analysing the power characteristic from a supermarket in the city of Varberg during year 2015. The object has been to evaluate the energy storage and the power smoothing qualities. Therefore the battery energy storages characteristics have been evaluated in this systematic review. For the quantitative study, calculations of the energy storage sizes were made for two separate operation modes. The two different operation modes were named technical dimensioning and economic dimensioning. The function of the technical dimensioning was to smooth the power outlet from the grid, while the function of the economic dimensioning was to enable the supermarket to buy more energy during low-price hours. Based on monthly power characteristics, each dimensioning gave as a result two energy storage possibilities, one in medium and one in small size. The technical dimensioning resulted in battery energy storage of the sizes 617 kWh and 555kWh which is comparable to 7,1% and 5,8% of the daily energy usage of the supermarket. The economic dimensioning resulted in battery energy storage of the sizes 597 kWh and 233kWh which is comparable to 6,8% and 2,8% of the daily energy usage of the supermarket. For optimizing the economic savings, a variation of technical and economic operation mode are needed, depending on calculated power usage through the day and elspot prices. The study shows that a battery storage is difficult to finance. The calculated economic savings were estimated during ideal conditions and without power loss or loss in performance. As a conclusion from this study a battery storage may have a good payback if there are several energy services to be filled.
Nilsson, André. "Energilagring i byggnader : En litteraturstudie om batterilagring, vätgaslagring och en utredning om möjligheter till energilagring av förnyelsebar energi." Thesis, Mittuniversitetet, Avdelningen för kemiteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-31083.
Full textEnergy consumption is increasing globally and because of this, increased energy production is necessary. Electricity from renewable sources is and will further be a key to meet the energy needs and perhaps the most important energy source is the sun. Umeå energi makes an investment in a photovoltaic system at Gammlia sports center in Umeå, and because of this, a study has been made on energy storage in combination with solar cells. Solar cells have a varied production, seen over the day and year. The solar cells only produce electricity when the sun is up, and energy storage is a possible solution for storing some of the energy produced during the day, to use later during the evening/night. The report's first section has two energy storage methods studied, battery storage and hydrogen storage. Methods for the operating principles, pros/cons and a statement whether they fit as energy storage in buildings has been made. In the second part, calculations have been made for the possibility of installing energy storage in Gammlia sports center for the electricity generated from the solar panels. The first part is made of a literature review of scientific reports and other web-based material. Energy estimates are based from the information provided from Umeå energy and the available methods of calculations on the web. Battery is an electrochemical storage shape and function to an anode, a cathode, and the electrolyte is used in all techniques. The advantage of batteries is the flexibility and low maintenance costs while the major drawback is the low energy density. Hydrogen storage using electrolysis is a method in which hydrogen produced from water and electricity. The advantage is the high energy density and environmentally friendly conversion. The main disadvantage is the high conversion losses. The survey on the possibilities for energy storage in the Gammlia sports facility, an investigation was made whether the plant could be made self-sufficient for electricity on the solar cells. It was costly that it was not feasible with the solar cell demodulation and storage technologies that are relevant in this study. A less comprehensive solution was found that involves daystorage in the summer months. Using batteries, energy produced on the day could be saved and used in the evening / night. This solution was feasible, purely technical, but not economical, as earnings were too small in comparison to investment cost.
Sandell, Olof, and Arvid Olofsson. "Undersökning av lönsamhet för batterilagring i kommersiella fastigheter tillsammans med solceller : Förutsättningar för lönsamhet vid optimal drift och vid drift baserad på prognoser." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326013.
Full textGustafsson, Olof, and Gabriel Nyman. "Sammanställning och uppföljning av energisnålt flerbostadshus." Thesis, Linnéuniversitetet, Institutionen för byggd miljö och energiteknik (BET), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105653.
Full textLenner, Oskar. "Småskalig elproduktion : Förstudie på hur ett bostadshus kan bli mer självförsörjande och utvinna energi från sol och vind." Thesis, Mittuniversitetet, Institutionen för kemiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39317.
Full textThe purpose of this thesis has been to examine how to reduce the need to buy energy for a property with associated buildings. The focus has been on producing enough energy to cover the property owners' consumption of electricity. The project has also involved simpler energy optimization measures. After this, a physical review of the buildings was carried out, where measurement was also carried out partly as a basis for an energy balance and partly as a basis when examining which energy saving measures were economically feasible, such as additional insulation of the wind. Then quotes and other important information, such as energy production and prices, were collected and then analyzed. All parts were compared to each other to arrive at what best suited the property owners. Storage and wind power had too long a payback period against what the owners had asked for when they wanted it to be repaid before the end of product life. The result of the wind power showed that the wind speeds could not be fully determined since the wind measurement made was 25 km away, which leads to an uncertainty in how much electricity can be produced. The most profitable was the largest of the four solar cell parks compared. It and the small wind turbine together produce enough electricity to meet their needs. However, neither the wind turbine nor the battery storage was recommended because of the payback time. The owners can thus produce most of the electricity using solar cells, but not all according to the calculations made. In addition to Vattenfall's solar cells, it was recommended to insulate the wind and install a charging box from Vattenfall. Since the theory in the degree project should be based on audited sources and not on profit-making sources, student literature, published reports and reports from authorities were used.
Högerås, Johanna. "Batterimatning som reservdrift på mellanspänningsnätet." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-333868.
Full textSiddique, Muhammad Bilal. "Techno-economic analysis of mobile battery storage systems to utilize curtailed wind energy in Germany for off-grid applications." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264352.
Full textDen ökande andelen förnybar energi, särskilt vindenergi, leder en till ökad andel av oförutsägbar intermittent energi till elnätet. Detta leder tidvis till en överbelastning på elnätet, vilket resulterar i att vindkraftverkens elproduktion måste begränsas. Endast i Tyskland under 2015 begränsades 4000 GWh av vindenergi. Samtidigt används diesel generatorer i off-grid områden för att bedriva mässor, marknader, festivaler och liknande arrangemang. Den här rapporten undersöker ett specifikt fall för mobila lagringsmöjligheter. Batterier kan användas för att nyttja den begränsade vindenergin för offgrid evenemang som festivaler och konserter i Tyskland. Batterierna laddas i vindkraftsparker vid hög tillgång till vindenergi och transporteras sedan till ett evenemang för att försörjas med förnybar energi. Batterierna eller lagringsmediet som används för detta fall har en kapacitet på 1,5 MWh och systemet är paketerad i en fraktcontainer för enkel transport. Enligt resultaten från denna studie kan det föreslagna användningsfallet leda till en betydande minskning av koldioxidutsläppen, ett enda lagringssystem skulle kunna spara upp till cirka 8,4 miljoner kg CO2 vid evenemang och festivaler. Dessutom skulle det kunna bidra till integration av förnybar energi genom att tillhandahålla ren vindkraft, som annars begränsas, till festivaler och konserter. Denna studie identifierar en vindkraftspark med den mest begränsade energin i Tyskland med total kapacitetsvaraktighet som står för cirka 32% av tiden under 2017. Den tekniska modellen, simulerad i MATALB / Simulink, laddade batterilagringssystemet framgångsrikt utan flaskhals. De nivåiserade lagringskostnaderna visade sig vara i jämförelse med de nivåiserade kostnaderna för dieselgeneratorer. Ett enda lagringssystem kan spara upp till 8,4 miljoner kg koldioxidutsläpp. Studien föreslår vidare policyförslag för att främja ett sådant innovativt fall.