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SMÅSKALIG EL-PRODUKTION MED SOLCELLER FÖR EN HÅLLBAR SAMHÄLLSUTVECKLING / SMALL SCALE ELECTRICITY PRODUCTION USING SOLAR CELLS FOR PROGRESS OF SUSTAINABLE SOCIETYWiil, George, Svensson, Johannes January 2015 (has links)
Purpose: The purpose of this report is to engage the house owners to their own small scale electricity production with solar cells (photovoltaic). Small scale electricity production with solar cells is a way that contributes to the development of a sustainable society. Method: Literature review has been used for collecting information about solar cells. Interviews were used for information on the solar industry in Sweden. Document analysis was used to obtain information on the regulation of small scale power generation and statistical data on its market. Calculations have been made on the profitability of small scale electricity generation with solar cells. Findings: Electricity produced by solar cells is one of the most environmentally friendly methods available. Small-scale photovoltaic electrical generation can contribute to achieving the national environment objectives. Small scale electricity production should not exceed the household electricity needs, because of grid losses. In Sweden, it is not profitable to produce its own electricity with solar cells. It requires national economic subsidies. Implications: In an extensive expansion of small scale power generation, it is required that the grid is adapted to receive the unused amounts of electricity from solar cells. Grid modification requires large investments and may affect the price of electricity. Large scale production of solar cells requires the development of national recycling systems. Silver should be replaced with copper as a cheaper alternative for electrodes. Limitations: The report is about small scale photovoltaic electrical generation for households. The effect on PV (photovoltaic) installations are limited to a maximum power of 10 kW, and only installations connected to the grid are treated. Storage of solar energy and energy conversion are not included. The study is limited to Sweden. The economic calculations ranging is up to 30 years.
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Processen för bygglov : De sökande småhusägarnas perspektiv och fuktproblem i Stockholms StadAl-Wandi, Karar January 2023 (has links)
Purpose: The purpose of this study is to identify problems and shortcomings in the process of building permits from the perspective of small house owners in Stockholm. The purpose of this study is also to present future improvements. Methods: The method for this study contains both literature study and a case study. The case study consisted of a digital survey and interviews with small house owners and with the municipality´s building permit department. The digital survey consisted of questions about previous experiences of the building permit process to then investigate where there are shortcomings and weaknesses. Results: The results gave a wider perspective of how the small house owners experience the building permit process and how the municipality works through challenges and improves the process. The digital survey showed that several were dissatisfied with the processing time and experienced it as a long period. The respondents also experienced it as a difficulty when it comes to submitting correct documents requested by the municipality and that there are high building permit fees. A concrete improvement measure is that Stockholm municipality clarifies the building permit process steps regarding processing times and other weaknesses that arise on the website. Conclusions: The conclusion of this work is that Stockholm municipality updates the website, so that applicants with less knowledge and experience regarding building permits can get a better idea and possibly follow the schedule and budget they planned for the project. To avoid damage caused by damp during the project, it is possible to undergo a so-called moisture safety design. Stockholm municipality can introduce more employees within the building permit department to be prepared for periods where there is high pressure in building permit matters.
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