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Solenergi i Stockholm
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
2014 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Solar Energy in Stockholm (English)
Abstract [sv]

Stockholm har inför 2050 satt upp ett mål om att bli koldioxidfritt. I strävan mot detta söker man utvinna energi med förnybara metoder och ett alternativ för elproduktion inom stadskärnan skulle kunna vara solceller. Solceller är en teknik som genom sammanfogande av halvledarmaterial och den fotoelektrisk effekt genererar el ur solinstrålning.

Avhandlingen studerar dagens solceller, med verkningsgrader uppemot 20 % och deras potential att täcka den mindre del av Stockholms elbehov som idag härstammar från fossila bränslen. Genom att se till en uppskattad befintlig takyta i Stockholms kommun och jämföra den med ytan som baserat på solcellernas potential behövs för att täcka behovet, konstateras att endast en liten del av detta kommer kunna täckas. För att solceller skall vara aktuella inom storskalig elproduktion, krävs att de är ekonomiskt lönsamma och att det i dagens läge är praktiskt genomförbart att montera dem inom stadskärnan. För att studera detta utförs en detaljerad fallstudie av en fastighet på Kungsholmen i Stockholm med en tillhörande ekonomisk kalkyl innehållande payoff och nuvärde. Det visar sig tydligt att projektet är väl genomförbart och investeringskalkylen returnerar positiva nuvärden och kortare paybacktider inom rimliga variabelvärden.

Abstract [en]

The county of Stockholm has for environmental goals put up to become independent of fossil fuels, diminishing the release of carbon-dioxide into the atmosphere to a minimum. In order to do so measures are taken to explore new technologies in electrical energy accumulation and one of the alternatives is solar energy that could be exploited within the city of Stockholm. Solar energy is extracted from panels containing a semi-conductive material (usually silicone) and relies on the photovoltaic effect to generate electrical power from sun irradiation.

This report studies solar energy of today and with panel efficiencies up toward 20 % evaluates their potential to cover the electrical energy need that residues from fossil fuels as of today. By examining the area needed to cover the electric use and comparing it to estimates on available and favorable rooftop area within Stockholm. Conclusively, only a small part of the consumption can be satisfied by solar energy.

For solar power to take market shares within energy accumulation it’s deemed important that the technology is economically favorable and readily available. These factors are examined through a case study of a potential PV power plant on a specific building in Stockholm at Kungsholmen. The case study contains a full technical simulation along with an economic analysis based on present value calculations and a payback evaluation. Solar power is deemed technically and economically favorable as of today.  

Place, publisher, year, edition, pages
2014.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-148081OAI: oai:DiVA.org:kth-148081DiVA: diva2:735268
Available from: 2014-08-21 Created: 2014-07-21 Last updated: 2014-08-21Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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