research

Becquerel Sweden can contribute expertise, data or statistics to various research projects or research articles related to the solar cell expansion or the related energy and technology transition. Either as a sub-consultant, project partner or co-author.

Becquerel Sweden also has experience in assisting public research funders with evaluation of research strategies and specific research projects, as well as scientific conferences to ensure the quality of scientific contributions.

Johan Lindahl's doctoral studies also have experience from academic basic research.

Selection of ongoing or completed research assignments

dateProject title Project partnersdescription
Sep 2023-ongoingRelease of grid capacity and flexibility from simulated aggregated solar power production taking into account the orientation of individual systems.Becquerel Sweden, Uppsala University, Falu Elnät and CheckWatt.The project aims to evaluate how recently developed remote sensing and machine learning models, which provide new knowledge about the exact location and orientation of all PV installations in an area, can create value for grid owners and aggregators.
Aug 2021-Feb 2023
Calculation tools for optimal design of solar parksEnergiforsk, Becquerel SwedenThis research project aims to contribute knowledge on how to design and plan solar parks with higher efficiency and profitability. Currently, there is a lack of tools for solar park designers that take into account local weather conditions, and in particular the price signals from the electricity market and thus, by extension, the balance between production and demand. The project aims to develop a computational model that allows optimising the angle and direction of PV modules based on both local weather conditions and spot price variations over time.
Aug 2020 - Jan 2023Automatic mapping of solar panels and generation of solar power forecasts from aerial images and machine learningBecquerel Sweden, Uppsala University, SwedenThe project aims to evaluate whether it is possible to determine where the photovoltaic plants in Sweden are physically installed, their power and design through a system that uses aerial/satellite imagery and an image analysis method that uses machine learning.
Sep 2017 - Dec 2020Member of the Swedish Energy Agency's Strategic Research Council on Solar Power Swedish Energy AgencyMembers of the Strategic Research Council assist the Swedish Energy Agency with input on the focus and focus on the research grants that are announced to, and awarded, swedish research on solar power.

Academic publications from employees at Becquerel Sweden

PV market

L. Molin, S. Ericsson, D. Lingfors, J. Munkhammar, J. Lindahl, Validation of a PV generation model for simulation of wide area aggregated distributed PV power generation that takes individual systems location and orientation into account, Proceedings of the 40th European Photovoltaic Solar Energy Conference and Exhibition EU PVSEC 2023 (2023), 020527-001-015.

G. López Pinto, F. Özaras, J. Andersson, B. Sandén, A. Oller Westerberg, J. Lindahl, Shining light on European BIPV - A survey of dependence and fragmentation in the emerging European value chain for building integrated photovoltaics, Proceedings of the 40th European Photovoltaic Solar Energy Conference and Exhibition EU PVSEC 2023 (2023), 020502-001-007.

J. Lindahl, R. Johansson, D. Lingfors, Mapping of decentralized photovoltaic and solar thermal systems by remote sensing aerial imagery and deep machine learning for statistic generation, Energy and AI, Volume 14 (2023),100300.

LCOE distribution of PV for single-family dwellings in Sweden, Energy Reports, Volume 10, November 2023, pp 1951-1967.

S. Zainali, J. Lindahl, J. Lindén, B. Stridh, LCOE distribution of PV for single-family dwellings in Sweden, Energy Reports, Volume 10, November 2023, pp 1951-1967.

Â. Frimane, R. Johansson, J. Munkhammar, D. Lingfors, J. Lindahl, Identifying small decentralized solar systems in aerial images using deep learning, Solar Energy, Volume 262, 15 September 2023 (2023) 111822.

J. Lindahl, S. Ekbring, R. Johansson, D. Lingfors, J. Munkhammar, Socioeconomic and demographic factors behind the deployment of domestic photovoltaic and solar thermal systems in three Swedish municipalities, Proceedings of the 8th World Conference on Photovoltaic Energy Conversion, WCPEC-8 (2022), pp. 1530-1540.

J. Lindahl, D. Lingfors, Å. Elmqvist, I. Mignon, Economic analysis of the early market of centralized photovoltaic parks in Sweden, Renewable Energy 186 (2022), pp. 207-216.

G. Masson, I. Kaizuka, J. Lindahl , A. Jaeger-Waldau, G. Neubourg, et al., A snapshot of global PV markets — The latest survey results on PV markets and policies from the IEA PVPS programme in 2018, Proceedings of the 46th IEEE Photovoltaic Conference Specialists (2019);

G. Masson, I. Kaizuka, J. Lindahl, A. Jaeger-Waldau, G. Neubourg, et al. , A snapshot of global PV markets — The latest survey results on PV markets and policies from the IEA PVPS programme in 2017, Proceedings of the 7th World Conference on Photovoltaic Power Conversion (2018).

G. Masson, P. Hüsser, I. Kaizuka, J. Lindahl,A. Jaeger-Waldau, et al., A snapshot of global PV markets — The latest survey results on PV markets and policies from the IEA PVPS programme 2016, Proceedings of the 32nd European Photovoltaic Solar Energy Conference and Exhibition (2016) pp. 2869–2873.

Policy and Regulations

A. Jaeger-Waldau, G. Adinolfi, A. Batlle, J. Lindahl, et al., Self-consumption of electricity produced with photovoltaic systems in apartment buildings — Update of the situation in various IEA PVPS countries, Proceedings of the 47th IEEE Photovoltaic Conference Specialists (2020).

A. Jaeger-Waldau, G. Adinolfi, A. Batlle, J. Lindahl, et al., Electricity produced from photovoltaic systems in apartment buildings and self-consumption — Comparison of situation in various IEA PVPS countries, Proceedings of the 46th IEEE Photovoltaic Specialists Conference (2019).

CIGS thin film solar cells

Doctoral thesis: J. Lindahl, Atomic layer deposition of zinc tin oxide buffer layers for Cu(In,Ga)Se2 solar cells, Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1277.104 pp (2015).

J. Lindahl, J. Keller, O. Donzel-Gargand, P. Szaniawsk, M. Edoff, and T. Törndahl, Deposit temperature induced conduction band changes in zinc tin oxide buffer layers for Cu(In,Ga)See2 solar cells, Solar Energy Materials and Solar Cells 144 (2016) pp. 684–690.

J. Keller, J. Lindahl, M. Edoff, L. Stolt, and T. Törndahl, Potential gain in photocurrent generation for Cu(In,Ga)See2 solar cells by using In2O3 as a transparent conductive oxide layer, Progress in Photovoltaics: Research and Applications 24 (2015) pp. 102–107.

J. Lindahl, C. Hägglund, J. T. Wätjen, M. Edoff, and T. Törndahl, The effect of substrate temperature on atomic layer deposited zinc tin oxide, Thin Solid Films 586 (2015) pp. 82–87.

J. Lindahl, U. Zimmermann, P. Szaniawski, T. Törndahl, A. Hultqvist, P. Salome, C. Platzer-Björkman, and M. Edoff, Inline Cu(In,Ga)See2 Co-evaporation for High-Efficiency Solar Cells and Modules, IEEE Journal of Photovoltaics 3. (2013) pp. 1100–1105.

P. Szaniawski, J. Lindahl, T. Törndahl, U. Zimmermann, and M. Edoff, Light-enhanced reverse breakdown in Cu(In,Ga)See2 solar cells, Thin Solid Films 535 (2013) pp. 326–330.

J. Lindahl, J. T. Wätjen, A. Hultqvist, T. Ericson, M. Edoff, and T. Törndahl, The effect of Zn1–xSnxOy buffer layer thickness in 18.0% efficient Cd-free Cu(In,Ga)See2 solar cells, Progress in Photovoltaics: Research and Applications 21 (2013) pp. 1588–1597.

M. Kapilashrami, C. X. Kronawitter, T. Törndahl, J. Lindahl, A. Hultqvist,W.-C. Wang, C.-L. Chang, S. S. Mao, and J. Guo, Soft X-ray Characterization of Zn1–xSnxOy Electronic Structure for Thin Film Photovoltaics, Physical Chemistry Chemical Physics 14 (2012) pp. 10154–10159.