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Solceller på flerbostadshus
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik.
2019 (svensk)Independent thesis Basic level (university diploma), 10 poäng / 15 hpOppgaveAlternativ tittel
Photovoltiac solar cells mounted on multi-apartment dwellings (engelsk)
Abstract [en]

Sweden has taken upon themselves several goals to reduce their carbon footprint and exchange fossil fuels for renewable energy sources; Solar power will play an important part in fulfilling these goals. Due to declining costs and a technology that is getting more efficient solar power has seen a rampart growth is system installation the last couple of years. However, often economic support schemes are necessary for making a PV-system profitable, especially in Sweden where the sun doesn’t shine as much. Electricity generation with the use of PV-systems on buildings can be unreliable because the sun might not shine when the building needs the electricity, and the opposite is also a problem where the sun is shining, but the building doesn’t need electricity.

The main purpose of this of this study was to evaluate the possibilities of a PV-system on two large residential buildings located in Sweden, Umeå. The study was conducted by gathering data about the buildings through measurement, pictures and investigation. With the data acquired a total of five different PV-systems was dimensioned to be tested for performance. The software PVGIS was used to analyze the PV-system performance by making use of climate data to simulate the weather conditions in Sweden. Thereafter the PV-systems economical prerequisites were analyzed by calculating LCOE, payback, present value and IRR.

The results show that there are possibilities to install PV-systems on the buildings, but if larger systems are to be installed it seems like a battery is needed. If two smaller PV-system of total 113 kWp is installed the study suggest that relatively high levels of power self-sufficiency can be achieved. This is believed to be caused by the very constant electricity loads in the buildings. The energy output per kWp of installed power reaches 775 kWh/kWp on the best roof surfaces and is drastically lowered on the worst surfaces. Such energy exchange is considered low. The economical investigation shows that PV-systems that can use a lot of the produced electricity directly in the building instead of selling it to the public powerline has more profitability.

sted, utgiver, år, opplag, sider
2019. , s. 39
Emneord [sv]
solcell, flerbostadshus
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-161119OAI: oai:DiVA.org:umu-161119DiVA, id: diva2:1332013
Eksternt samarbeid
Seniorhusen AB
Fag / kurs
Energiteknik
Utdanningsprogram
Bachelor of Science Programme in Energy Engineering
Veileder
Examiner
Tilgjengelig fra: 2019-06-27 Laget: 2019-06-27 Sist oppdatert: 2019-06-27bibliografisk kontrollert

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