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Solcellers ekonomiska och miljömässiga påverkan
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Sustainable Buildings.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Sustainable Buildings.
2023 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
The economic and environmental impact of solar panels. (English)
Abstract [sv]

Fördjupningen undersöker konsekvenserna av att installera solceller på taken av ett specifiktsmåhus samt för en uppskattad bild av hela Sveriges småhus. Konsekvenserna som undersöksgäller effekt- och energianvändning, ekonomi samt miljö. Energitillskottet för småhuset och förhela Sverige blir 11830 kWh/år respektive 33.96 TWh/år. Det senare representerar 21.1 % avlandets nuvarande årliga energiproduktion. Investeringskostnaden för småhuset och för helaSverige blir 251 tusen kr respektive 579.8 miljarder kr. Besparingarna av att installera solcellerpå småhuset och hela landet skulle bli 18340 kr/år respektive 52.6 miljoner kronor/år.Investeringarna räknas hem inom 14 respektive 11 år. Beroende på om energin från solcellernaskulle ersätta energi från naturgas eller kol kommer småhuset undvika att släppa ut 5.3-9.2 tonCO2e årligen. Liknande skulle hela Sverige undvika att släppa ut 15.2-26.5 miljoner ton CO2eårligen.

Abstract [en]

The study examines the consequences of installing solar panels on the roofs of a specific singlefamily house and provides an estimated overview of all single family houses in Sweden. Theconsequences being examined relate to power and energy use, economics, and the environment.The energy addition for the single family house and for all of Sweden’s single family housesamounts to 11,830 kWh/year and 33.96 TWh/year, respectively. The latter represents 21.1% ofthe country's current annual energy production. The investment cost for the single family houseand those for all of Sweden is 251 thousand SEK and 579.8 billion SEK, respectively. The savingsfrom installing solar panels on the small house and on all of the single family houses of the wholecountry would amount to 18,340 SEK/year and 52.6 million SEK/year, respectively. Theinvestments are expected to pay off within 14 and 11 years, respectively. Depending on whetherthe energy from the solar panels would replace energy from natural gas or coal, the small housewill avoid emitting 5.3-9.2 tons of CO2e yearly. Similarly, all of Sweden would avoid emitting15.2-26.5 million tons of CO2e yearly.

Place, publisher, year, edition, pages
2023.
Series
TRITA-ABE-MBT ; 23629
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-342038OAI: oai:DiVA.org:kth-342038DiVA, id: diva2:1825869
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Available from: 2024-01-10 Created: 2024-01-10

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