kth.sePublications KTH
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Potential of Wall-Mounted Solar PV Panel in high-latitude areas-A case study in Swedish contexts
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.ORCID iD: 0000-0001-6866-3036
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.ORCID iD: 0000-0003-4134-3520
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.ORCID iD: 0000-0001-7193-5303
2025 (English)In: Energy Proceedings, Applied Energy Innovation Institute (AEii) , 2025, Vol. 51Conference paper, Published paper (Refereed)
Abstract [en]

To catch up with the sustainability transition progress, the global capacity of PV system is predicted to grow dramatically in the following decades, including high-latitude regions. To effectively use the urban space resource for PV power generation in the high-latitude areas, wall-mounted PV system is becoming an attractive solution. This paper evaluates the potential of wallmounted PV system in the high-latitude areas with a case study in Swedish contexts through a PV power generation model by considering weather conditions (including snowfall, icing and melting), orientation, and economics. The key performances are compared with rooftop fixed-tilt angle PV systems in Swedish contexts. Although the annual power generation of the wallmounted PV system is around 5% lower under heavy snow conditions, its power generation during the snow season (from October to April) increases significantly. In general, the power generation in March almost doubled and the increase could be more than 25% in April. Therefore, wall-mounted PV system can contribute to the winter electricity supply in high-latitude areas, when the electricity price is high.

Place, publisher, year, edition, pages
Applied Energy Innovation Institute (AEii) , 2025. Vol. 51
Keywords [en]
High-latitude areas, Snow conditions, Techno-economic analysis, Wall-mounted PV
National Category
Energy Systems Fusion, Plasma and Space Physics Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:kth:diva-356946DOI: 10.46855/energy-proceedings-11449Scopus ID: 2-s2.0-85209574607OAI: oai:DiVA.org:kth-356946DiVA, id: diva2:1916653
Conference
16th International Conference on Applied Energy, ICAE 2024, Niigata, Japan, Sep 1 2024 - Sep 5 2024
Note

QC 20241129

Available from: 2024-11-28 Created: 2024-11-28 Last updated: 2025-04-17Bibliographically approved
In thesis
1. Decentralized PV systems in Sweden: Techno-economic analysis with a case study of Stockholm
Open this publication in new window or tab >>Decentralized PV systems in Sweden: Techno-economic analysis with a case study of Stockholm
2025 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Photovoltaic (PV) systems could be a promising option for accelerating sustainable transition in the power sector. However, it is not straightforward to implement solar PV in Sweden. While the huge gap between current and desired solar capacity generates great opportunities for solar PV technologies, the challenges arise regarding accurate performance prediction, optimization of sizing and installation, optimization for high latitude regions and integration with other technologies. This study focuses on a multi-dimensional probe into the potential and feasibility of PV systems in Sweden with a case study of Stockholm. The techno-economic potential of PV systems is evaluated regarding weather, space, infrastructure, operation configuration and economics. The results reveal the technical and economic feasibility of PV systems in Swedish contexts, despite limitations on existing infrastructure. The research highlights the significant PV generation loss due to snow conditions. The annual electricity generation loss is found to be 14.7%, which is greater than most prior research findings. Regarding this significant snow loss, bifacial PV can reduce snow-induced PV generation losses by up to 6 percentage points under heavy snow conditions. It also outperforms monofacial PV with lower levelized cost of electricity (LCoE) and shorter payback year in Sweden. Wall-mounted PV could also be an alternative. Compared to fixed-tilt PV, wall-mounted PV can achieve comparable annual benefits due to higher generation during the snow season when the electricity price is rather high. Future projections indicate an anticipated increase in PV generation by approximately 5% compared to historical periods. The change in PV generation is expected to be relatively minor during future periods, with an estimated variation of less than 30 kWh/kWp by 2100. Additionally, an optimal tilt angle has been determined for Sweden, applicable across all cities, which could enhance PV generation by 3-6% compared to the common installation angle.

Abstract [sv]

Solceller (PV) kan vara ett lovande alternativ för att påskynda en hållbar omställning inom kraftsektorn. Det är dock inte okomplicerat att implementera solceller i Sverige. Medan det enorma gapet mellan nuvarande och önskad solkapacitet genererar stora möjligheter för solcellstekniker, uppstår utmaningarna när det gäller exakt prestandaförutsägelse, optimering av dimensionering och installation, optimering för regioner med hög latitud och integration med andra teknologier. Denna studie fokuserar på en flerdimensionell undersökning av potentialen och genomförbarheten av solcellssystem i Sverige med en fallstudie av Stockholm. Den tekniska-ekonomiska potentialen hos PV-system utvärderas med avseende på väder, utrymme, infrastruktur, driftkonfiguration och ekonomi. Resultaten visar den tekniska och ekonomiska genomförbarheten av solcellssystem i svenska sammanhang, trots begränsningar av befintlig infrastruktur. Forskningen belyser den betydande förlusten av PV-generering på grund av snöförhållanden. De årliga elproduktionsförlusterna visar sig vara 14,7 %, vilket är större än de flesta tidigare forskningsrön. När det gäller denna betydande snöförlust kan bifacial PV minska snöinducerade PV-genereringsförluster med upp till 6 procentenheter under tunga snöförhållanden. Den överträffar också monofacial PV med lägre utjämnad elkostnad (LCoE) och kortare återbetalningsår i Sverige. Väggmonterad PV kan också vara ett alternativ. Jämfört med PV med fast lutning kan väggmonterad PV uppnå jämförbara årliga fördelar på grund av högre produktion under snösäsongen när elpriset är ganska högt. Framtida prognoser indikerar en förväntad ökning av solcellsproduktionen med cirka 5 % jämfört med historiska perioder. Förändringen i PV-generering förväntas vara relativt liten under framtida perioder, med en uppskattad variation på mindre än 30 kWh/kWp år 2100. Dessutom har en optimal lutningsvinkel bestämts för Sverige, tillämplig över alla städer, vilket skulle kunna öka PV-genereringen med 3–6 % jämfört med den vanliga installationsvinkeln.

Place, publisher, year, edition, pages
Stockholm, Sweden: KTH Royal Institute of Technology, 2025. p. xxii, 112
Series
TRITA-ITM-AVL ; 2025:16
Keywords
Photovoltaic, Techno-economic analysis, Snow-loss model, climate change, Swedish contexts, Solceller, Teknoekonomisk analys, Snöförlustmodell, klimatförändringar, svenska sammanhang
National Category
Energy Systems
Research subject
Energy Technology
Identifiers
urn:nbn:se:kth:diva-362565 (URN)978-91-8106-262-5 (ISBN)
Public defence
2025-05-15, Kollegiesalen / https://kth-se.zoom.us/j/68360743311, Brinellvägen 8, Stockholm, 09:30 (English)
Opponent
Supervisors
Available from: 2025-04-17 Created: 2025-04-17 Last updated: 2025-05-12Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Ruan, TianqiWang, WujunLaumert, Björn

Search in DiVA

By author/editor
Ruan, TianqiWang, WujunLaumert, Björn
By organisation
Heat and Power Technology
Energy SystemsFusion, Plasma and Space PhysicsOther Engineering and Technologies

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 227 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf