Lauri Karttunen

- Project Researcher,
- Doctoral Researcher
Materials Engineering (Department of Mechanical and Materials Engineering)

lauri.p.karttunen@utu.fi

My research is focused on integrating solar energy effectively in Nordic conditions. Especially, I am focusing on data driven modelling of outdoor performance of photovoltaic systems and energy management between solar energy systems and battery in a residential settings.

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Impact of growing national solar power capacity on the profitability of residential solar energy production in northern conditions (2026)
- Renewable Energy
Jouttijärvi, Sami; Seppälä, Simeon; Karttunen, Lauri; Ranta, Samuli; Syri, Sanna; Miettunen, Kati
Performance evaluation of high latitude agrivoltaic systems with vertically mounted bifacial panels (2026)
- Applied Energy
Szarek, Magda; Jouttijärvi, Sami; Karttunen, Lauri; Hynnä, Teemu; Ranta, Samuli; Miettunen, Kati
Photovoltaic power modelling in high latitudes with empirical and machine learning models using transfer learning (2026)
- Solar Energy
Anttalainen, Väinö; Karttunen, Lauri; Jouttijärvi, Sami; Lindfors, Anders V.; Karhu, Juha A.; Huerta, Hugo; Ranta, Samuli; Lipping, Tarmo; Miettunen, Kati
Robust Performance Loss Rate Calculation for Photovoltaic Systems in High Latitude Locations (2026)
- Progress in Photovoltaics
Karttunen, Lauri; Anttalainen, Väinö; Jouttijärvi, Sami; Karhu, Juha A.; Huerta, Hugo; Ranta, Samuli; Lindfors, Anders V.; Miettunen, Kati
The impact of battery scheduling strategies on profitability considering battery usage costs and dynamic electricity pricing in Nordic residential PV–battery system (2026)
- Journal of Energy Storage
Karttunen, Lauri; Jouttijärvi, Sami; Jasielec, Jerzy J.; Niskanen, Johannes; Huerta, Hugo; Ranta, Samuli; Miettunen, Kati
Economic Value of Building-Integrated PV Production at High-Latitude Locations (2025)
- Proceedings of the European Photovoltaic Solar Energy Conference and Exhibition
Proceedings of the 42nd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2025) Jouttijärvi, Sami; Karttunen, Lauri; Szarek, Magda; Viriyaroj, Bergpob; Ranta, Samuli; Miettunen, Kati
Enhancing residential load forecasting accuracy through dynamic feature selection and ensemble machine learning models: A real-world scenario in Southern Finland (2025)
- Energy and Buildings
Taheri, Nabi; Karttunen, Lauri; Jouttijärvi, Sami; Piazzi, Antonio; Tucci, Mauro; Miettunen, Kati
Performance Analysis of Agrivoltaic System Configurations in Nordic Conditions (2025)
- Proceedings of the European Photovoltaic Solar Energy Conference and Exhibition
Proceedings of the 42nd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2025) Szarek, Magda; Jouttijärvi, Sami; Karttunen, Lauri; Ranta, Samuli; Miettunen, Kati
Sensitivity of Electricity Price in the Finnish Market Conditions with Increasing Solar Energy Production (2024)
- Proceedings of the European Photovoltaic Solar Energy Conference and Exhibition
Conference Proceedings EU PVSEC 2024 Jouttijärvi, Sami; Karttunen, Lauri; Tervo, Seela; Huerta, Hugo; Ranta, Samuli; Syri, Sanna; Miettunen, Kati
Techno-Economic Analysis of Residential PV-Battery Energy System in Nordics (2024) Proceedings of the 41st European Photovoltaic Solar Energy Conference and Exhibition in Vienna, Austria Karttunen, Lauri; Jouttijärvi, Sami; Niskanen, Johannes; Jasielec, Jerzy J.; Huerta, Hugo; Ranta, Samuli; Miettunen, Kati