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Will Sweden Join the Solar Boom? Financial Appraisal of Distributed Photovoltaic Generation in Residential Applications.Cihlar, Jan January 2015 (has links)
Residential building sector accounts for significant share of primary energy demand in Sweden. Worldwide, generation from photovoltaic (PV) distributed energy resources is increasing, yet their potential in Sweden has been underdeveloped, in particular due to high system costs. Recent drop in module prices could however trigger more interest in such systems. In this thesis, the financial performance of residential PV plant utilizing the most recent data is carried out. The specific aim is to determine whether private investment into a PV system can be cost-effective. In the analysis, a grid-connected PV microgenerator with nominal power of 5.5 kWp, 34 m2 of arrays and 6 kW inverter is assessed. Expected lifetime of the system is 25 years, where 80% of the electricity output is self-consumed and 20% fed back to the main grid. Discount and escalation rates are utilized to calculate simple payback period, net present value, benefit-cost ratio, cost of conserved energy and internal rate of return (IRR) of the investment. Further, a scenario analysis is worked out to determine the change in the microgenerator’s performance outside of baseline set of parameters. The results are presented both under the default market conditions and with the inclusion of government support mechanisms. The PV plant did not financially perform well under the default conditions. State rebates and tax credit significantly enhanced the results and contributed to the cost-effectiveness of the investment. In the baseline scenario with government support, significant positive results in all the metrics used in the financial appraisal were yielded. The IRR also indicated that loans at various interest rates could be obtained to finance the PV system. The study emphasized the necessity of government support if a faster uptake of distributed PV systems is desired in Sweden. The results of this thesis can be utilized by potential investors (consumers) in their decision-making process, especially when they face an opportunity cost of investment. / COMPLEX - Knowledge Based Climate Mitigation Systems for a Low Carbon Economy, a EU FP7 project (2012-2016)
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Bicycle Sharing in Developing Countries: : A proposal towards sustainable transportation in Brazilian median citiesAntunes Dias Batista, Edgard January 2010 (has links)
Bicycle-sharing programs are a new trend in urban transportation. The main difference of a bicycle-sharing program with a regular bicycle rental is that is possible to get a bicycle in one station and return it in any other station. There are many models of bicycle sharing, each model with its pros and cons. This study analyzes the bicycle-sharing models in order to build a proposal of a bicycle-sharing program suitable for Brazilian median cities. The study begins with an overview of bicycle transportation, followed by the analysis of different bicycle-sharing programs. The last chapter formulates a proposal of a bicycle-sharing program suitable for Brazilian median cities. This study uses both quantitative and qualitative methods. The analysis includes a case study on the bicycle-sharing program in Stockholm. This case study is based on interviews with the manager of the program in the company in charge, and with the responsible official in Stockholm municipality. A questionnaire was moreover handed out to users of the program. This case study is complemented with a questionnaire sent by email to managers of bicycle-sharing programs in some cities around the world, this in order to provide more examples on how bicycle sharing can be organized. Finally, another case study was carried out in a Brazilian median city in order to evaluate the local awareness concerning bicycle transport, and the possibility of implementing a bicycle-sharing program there. A questionnaire was handed out to a sample of the local population and an interview was made with the local transport authority. The analysis of all data results in a proposal for a bicycle-sharing program suitable for the Brazilian context. The proposal comprises the choices of bicycles, stations, equipment related to the hiring process and service vehicle. It includes a complete financial appraisal with the necessary capital for implementing and managing the program. It shows that it is possible to build an affordable bicycle-sharing program adapted to Brazilian median cities. The program will create job opportunities and can contribute to a changed view of bicycle transportation in these cities. The proposal could also be applied in countries with the same characteristics as Brazil.
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