All Stories

  1. Impact of Different Types of Dust on Solar Glass Transmittance and PV Module Performance

    Article • Progress in Photovoltaics Research and Applications, May 2025, Wiley

    Professor Ralph Gottschalg

  2. Environmental Stability of the Contact Resistivity of Interconnects Based on Electrically Conductive Adhesives and its Correlation to Photovoltaic Module Power Loss under Accelerated Aging Testing†

    Article • IEEJ Transactions on Electrical and Electronic Engineering, April 2025, Wiley

    Professor Ralph Gottschalg

  3. Extended Failure Mode and Effects Analysis for Development of Hot Desert Test Cycle Proposal

    Article • Progress in Photovoltaics Research and Applications, November 2024, Wiley

    Professor Ralph Gottschalg

  4. Crosslinking Behavior of Ethylene‐Vinyl Acetate Copolymer Encapsulants in Dependence of the Additive Composition

    Article • Progress in Photovoltaics Research and Applications, September 2024, Wiley

    Professor Ralph Gottschalg

  5. Spatially Resolved Degradation of Solar Modules in Dependence of the Prevailing Microclimate

    Article • IEEE Journal of Photovoltaics, September 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  6. Analysis and prediction of the performance and reliability of PV modules installed in harsh climates: Case study Iraq

    Article • Renewable Energy, July 2024, Elsevier

    Professor Ralph Gottschalg

  7. Comprehensive review on performance, reliability, and roadmap of c‐Si PV modules in desert climates: A proposal for improved testing standard

    Article • Progress in Photovoltaics Research and Applications, June 2024, Wiley

    Professor Ralph Gottschalg

  8. Correlation between laboratory and outdoor soiling experiments with anti-soiling coatings

    Article • Solar Energy Materials and Solar Cells, June 2024, Elsevier

    Professor Ralph Gottschalg

  9. Economic Consequences Based on Reversible and Irreversible Degradation of PV Park in the Harsh Climate Conditions of Iraq

    Article • Energies, May 2024, MDPI AG

    Professor Ralph Gottschalg

  10. From Performance Measurements to Molecular Level Characterization: Exploring the Differences between Ultraviolet and Damp Heat Weathering of Photovoltaics Modules

    Article • Solar RRL, April 2024, Wiley

    Professor Ralph Gottschalg

  11. UV lamp spectral effects on the aging behavior of encapsulants for photovoltaic modules

    Article • Solar Energy Materials and Solar Cells, March 2024, Elsevier

    Professor Ralph Gottschalg

  12. Analysis of Threshold Conditions for Cementation of Soiling on PV Modules and Telescope Mirrors

    Article • IEEE Journal of Photovoltaics, March 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  13. The effects of increasing filler loading on the contact resistivity of interconnects based on silver–epoxied conductive adhesives and silver metallization pastes

    Article • Progress in Photovoltaics Research and Applications, February 2024, Wiley

    Professor Ralph Gottschalg

  14. Simulation-Trained Neural Networks for Automatable Crack Detection in Magnetic Field Images

    Article • Journal of Nondestructive Evaluation, January 2024, Springer Science + Business Media

    Professor Ralph Gottschalg

  15. Diffusion of UV Additives in Ethylene-Vinyl Acetate Copolymer Encapsulants and the Impact on Polymer Reliability

    Article • IEEE Journal of Photovoltaics, January 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  16. Correlation between Laboratory and Outdoor Soiling Experiments with Anti-Soiling Coatings

    Article • January 2024, Elsevier

    Professor Ralph Gottschalg

  17. Potential of Vertical Bifacial PV in Chile

    Article • December 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  18. Vertical agrivoltaics and its potential for electricity production and agricultural water demand: A case study in the area of Chanco, Chile

    Article • Sustainable Energy Technologies and Assessments, December 2023, Elsevier

    Professor Ralph Gottschalg

  19. Discoloration Effect on Performance of PV Modules Installed in Middle East Hot Desert

    Article • November 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  20. Enhancing Durability of PV Modules in MENA Region: The Hot Desert Test Protocol

    Article • November 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  21. Predicting Warranty Risk of PV Modules

    Article • IEEE Journal of Photovoltaics, November 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  22. Influence of Lamination Conditions of EVA Encapsulation on Photovoltaic Module Durability

    Article • Materials, October 2023, MDPI AG

    Professor Ralph Gottschalg

  23. Validation of methodology to determine the contact resistivity of ECA-based bonds grounded on end–contact resistance measurements using redundant and modified TLM test structures

    Article • Solar Energy Materials and Solar Cells, October 2023, Elsevier

    Professor Ralph Gottschalg

  24. Influence of micro– and macrostructure when determining the contact resistivity of interconnects based on electrically conductive adhesives

    Article • Solar Energy Materials and Solar Cells, September 2023, Elsevier

    Professor Ralph Gottschalg

  25. Soiling mitigation potential of glass coatings and tracker routines in the desert climate of Saudi Arabia

    Article • Progress in Photovoltaics Research and Applications, August 2023, Wiley

    Professor Ralph Gottschalg

  26. Analysis and Identification of Measurement Uncertainty Sources of a LED Sun Simulator with Double-Side Illumination for Bifacial PV Module Power Rating

    Article • June 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  27. Spatially Resolved Degradation Analysis of Solar Modules After Combined Accelerated Aging

    Article • June 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  28. Particle-Size-Dependent Analysis of the Impact of Temperature, Humidity, and Tilt Angle on Soiling

    Article • IEEE Journal of Photovoltaics, May 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  29. Soiling mitigation potential of glass coatings and tracker routines in the desert climate of Saudi Arabia

    Article • April 2023, Wiley

    Professor Ralph Gottschalg

  30. Quantification of UV protecting additives in ethylene-vinyl acetate copolymer encapsulants for photovoltaic modules with pyrolysis-gas chromatography-mass spectrometry

    Article • Polymer Testing, January 2023, Elsevier

    Professor Ralph Gottschalg

  31. Analysis and Prediction of the Performance and Reliability of Pv Modules Installed in Harsh Climates: Case Study Iraq

    Article • January 2023, Elsevier

    Professor Ralph Gottschalg

  32. Proposal for Hot Desert Test Sequences for Improved Pv Module Durability

    Article • January 2023, Elsevier

    Professor Ralph Gottschalg

  33. An experimental comparison between view factor and ray tracing models for energy estimation of bifacial modules

    Article • June 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  34. Damp‐heat induced degradation in photovoltaic modules manufactured with passivated emitter and rear contact solar cells

    Article • Progress in Photovoltaics Research and Applications, March 2022, Wiley

    Professor Ralph Gottschalg

  35. Outdoor performance of anti-soiling coatings in various climates of Saudi Arabia

    Article • Solar Energy Materials and Solar Cells, January 2022, Elsevier

    Professor Ralph Gottschalg

  36. Mitigation of soiling losses by smart heating and night tilting for ASC and standard PV module glass

    Article • June 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  37. Loss analysis and optimization of PV module components and design to achieve higher energy yield and longer service life in desert regions

    Article • Applied Energy, December 2020, Elsevier

    Professor Ralph Gottschalg

  38. A European proficiency test on thin‐film tandem photovoltaic devices

    Article • Progress in Photovoltaics Research and Applications, September 2020, Wiley

    Professor Ralph Gottschalg

  39. Particle-size dependent parameter studies for laboratory soiling tests: influence of temperature, relative humidity and tilt angle

    Article • June 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  40. Solar Over-Irradiance Events: Preliminary Results from a Global Study

    Article • June 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  41. Systematic causes of problems in operation of PV systems

    Article • June 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  42. Techno-Economic Assessment of Soiling Losses and Mitigation Strategies for Solar Power Generation

    Article • Joule, October 2019, Elsevier

    Professor Ralph Gottschalg

  43. Interlaboratory comparison of short-circuit current versus irradiance linearity measurements of photovoltaic devices

    Article • Solar Energy, April 2019, Elsevier

    Professor Ralph Gottschalg

  44. A GIS-Based Method for Identification of Wide Area Rooftop Suitability for Minimum Size PV Systems Using LiDAR Data and Photogrammetry

    Article • Energies, December 2018, MDPI AG

    Professor Ralph Gottschalg

  45. A GIS-Based Method for Identification of Wide area Rooftop Suitability for Minimum Size PV Systems Using LiDAR Data and Photogrammetry

    Article • November 2018, MDPI AG

    Professor Ralph Gottschalg

  46. Electroluminescence Imaging of PV Devices: Advanced Vignetting Calibration

    Article • IEEE Journal of Photovoltaics, September 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  47. The future scope of large-scale solar in the UK: Site suitability and target analysis

    Article • Renewable Energy, September 2018, Elsevier

    Professor Ralph Gottschalg

  48. Centralized Volt-Var Optimization Strategy Considering Malicious Attack on Distributed Energy Resources Control

    Article • August 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  49. Effect of viscoelasticity of ethylene vinyl acetate encapsulants on photovoltaic module solder joint degradation due to thermomechanical fatigue

    Article • Japanese Journal of Applied Physics, July 2018, Japan Society of Applied Physics

    Professor Ralph Gottschalg

  50. Impact of Component Reliability on Large Scale Photovoltaic Systems’ Performance

    Article • Energies, June 2018, MDPI AG

    Professor Ralph Gottschalg

  51. Satellite or ground-based measurements for production of site specific hourly irradiance data: Which is most accurate and where?

    Article • Solar Energy, May 2018, Elsevier

    Professor Ralph Gottschalg

  52. Results of the round robin calibration of reference solar cells within the PhotoClass project

    Article • International Journal of Metrology and Quality Engineering, January 2018, EDP Sciences

    Professor Ralph Gottschalg

  53. Centralized Volt–Var Optimization Strategy Considering Malicious Attack on Distributed Energy Resources Control

    Article • IEEE Transactions on Sustainable Energy, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  54. Influence of Viscoelastic Properties of Encapsulation Materials on the Thermomechanical Behavior of Photovoltaic Modules

    Article • IEEE Journal of Photovoltaics, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  55. Realistic Adhesion Test for Photovoltaic Modules Qualification

    Article • IEEE Journal of Photovoltaics, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  56. Spectral Response Measurements of Perovskite Solar Cells

    Article • IEEE Journal of Photovoltaics, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  57. Extensive validation of CM SAF surface radiation products over Europe

    Article • Remote Sensing of Environment, September 2017, Elsevier

    Miss Diane Palmer, Professor Ralph Gottschalg

  58. The UK Solar Farm Fleet: A Challenge for the National Grid? †

    Article • Energies, August 2017, MDPI AG

    Miss Diane Palmer, Professor Ralph Gottschalg

  59. Compressed sensing current mapping methods for PV characterisation

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  60. Electroluminescence imaging of PV devices: Camera calibration and image correction

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  61. Inference of missing PV monitoring data using neural networks

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  62. Optimising I-V measurements of high capacitance modules using dark impedance measurements

    Article • June 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  63. Compensation of Temporal Averaging Bias in Solar Irradiance Data

    Article • IET Renewable Power Generation, May 2017, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  64. Impact of co-location of UK solar farms on output

    Article • IET Renewable Power Generation, April 2017, the Institution of Engineering and Technology (the IET)

    Miss Diane Palmer, Professor Ralph Gottschalg, Miss Elena Koubli

  65. Guest Editorial

    Article • IET Renewable Power Generation, April 2017, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  66. Compressed Sensing Current Mapping Spatial Characterization of Photovoltaic Devices

    Article • IEEE Journal of Photovoltaics, March 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  67. Performance and durability of broadband antireflection coatings for thin film CdTe solar cells

    Article • Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, March 2017, American Vacuum Society

    Professor Ralph Gottschalg

  68. Spectral irradiance effects on the outdoor performance of photovoltaic modules

    Article • Renewable and Sustainable Energy Reviews, March 2017, Elsevier

    Professor Ralph Gottschalg

  69. Interpolating and Estimating Horizontal Diffuse Solar Irradiation to Provide UK-Wide Coverage: Selection of the Best Performing Models

    Article • Energies, February 2017, MDPI AG

    Miss Diane Palmer, Professor Ralph Gottschalg

  70. Uncertainty Estimation of Temperature Coefficient Measurements of PV Modules

    Article • IEEE Journal of Photovoltaics, November 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  71. Cross-Characterization for Imaging Parasitic Resistive Losses in Thin-Film Photovoltaic Modules

    Article • Journal of Imaging, August 2016, MDPI AG

    Professor Ralph Gottschalg

  72. Compressive Current Response Mapping of Photovoltaic Devices Using MEMS Mirror Arrays

    Article • IEEE Transactions on Instrumentation and Measurement, August 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  73. Optical technique for photovoltaic spatial current response measurements using compressive sensing and random binary projections

    Article • Journal of Photonics for Energy, June 2016, SPIE

    Professor Ralph Gottschalg

  74. Changes of solar cell parameters during damp-heat exposure

    Article • Progress in Photovoltaics Research and Applications, June 2016, Wiley

    Professor Ralph Gottschalg

  75. Inference of missing PV monitoring data using neural networks

    Article • June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Miss Diane Palmer, Professor Ralph Gottschalg

  76. Compressed sensing current mapping methods for PV characterisation

    Article • June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  77. Electroluminescence imaging of PV devices: Camera calibration and image correction

    Article • June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  78. Optimising I-V measurements of high capacitance modules using dark impedance measurements

    Article • June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  79. Inference of missing data in photovoltaic monitoring datasets

    Article • IET Renewable Power Generation, April 2016, the Institution of Engineering and Technology (the IET)

    Miss Elena Koubli, Miss Diane Palmer, Professor Ralph Gottschalg

  80. Roof Tilt for PV

    Article • IET Renewable Power Generation, April 2016, the Institution of Engineering and Technology (the IET)

    Miss Diane Palmer, Professor Ralph Gottschalg

  81. Adhesion requirements for photovoltaic modules of polymeric encapsulation

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  82. Guest Editorial

    Article • IET Renewable Power Generation, April 2016, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  83. Improved Model for Circumsolar Irradiance Calculation as an Extended Light Source and Spectral Implications for High-Concentration Photovoltaic Devices

    Article • IEEE Journal of Photovoltaics, January 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  84. Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

    Article • International Journal of Energy and Environmental Engineering, November 2015, Springer Science + Business Media

    Professor Ralph Gottschalg

  85. Towards modelling realistic ageing rates of amorphous silicon devices in operational environment

    Article • Japanese Journal of Applied Physics, July 2015, Japan Society of Applied Physics

    Professor Ralph Gottschalg

  86. Spatially and spectrally resolved electroluminescence measurement system for photovoltaic characterisation

    Article • IET Renewable Power Generation, July 2015, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  87. Optical modelling for concentrating photovoltaic systems: insolation transfer variations with solar source descriptions

    Article • IET Renewable Power Generation, July 2015, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  88. Multi-domain analysis of photovoltaic impacts via integrated spatial and probabilistic modelling

    Article • IET Renewable Power Generation, July 2015, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg, Dr Philip A Leicester, Miss Diane Palmer

  89. Energy yields of small grid connected photovoltaic system: effects of component reliability and maintenance

    Article • IET Renewable Power Generation, July 2015, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  90. Guest Editorial

    Article • IET Renewable Power Generation, July 2015, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  91. Large scale PV systems under non-uniform and fault conditions

    Article • Solar Energy, June 2015, Elsevier

    Professor Ralph Gottschalg

  92. Electroluminescence Imaging of PV devices: Determining the image quality

    Article • June 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  93. Accelerated Spatially Resolved Electrical Simulation of Photovoltaic Devices Using Photovoltaic-Oriented Nodal Analysis

    Article • IEEE Transactions on Electron Devices, May 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  94. Irradiance modelling for individual cells of shaded solar photovoltaic arrays

    Article • Solar Energy, December 2014, Elsevier

    Professor Ralph Gottschalg

  95. Open access notice for the paper ‘Determining Spectral Response of a Photovoltaic Device using Polychromatic Filters’

    Article • IET Renewable Power Generation, November 2014, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  96. Distributed electrical network modelling approach for spatially resolved characterisation of photovoltaic modules

    Article • IET Renewable Power Generation, July 2014, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  97. Determining spectral response of a photovoltaic device using polychromatic filters

    Article • IET Renewable Power Generation, July 2014, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  98. Guest Editorial

    Article • IET Renewable Power Generation, July 2014, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  99. Fast electrical modeling for spatially-resolved characterization of amorphous silicon photovoltaic cells

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  100. Degradation of interfacial adhesion strength within photovoltaic mini-modules during damp-heat exposure

    Article • Progress in Photovoltaics Research and Applications, February 2014, Wiley

    Professor Ralph Gottschalg

  101. Influences on the energy delivery of thin film photovoltaic modules

    Article • Solar Energy Materials and Solar Cells, December 2013, Elsevier

    Professor Ralph Gottschalg

  102. Modeling spatial electrical properties in photovoltaic modules using PV-oriented nodal analysis

    Article • November 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  103. Data sets for energy rating of photovoltaic modules

    Article • Solar Energy, July 2013, Elsevier

    Professor Ralph Gottschalg

  104. Potential for LED solar simulators

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  105. Modeling A-Si module ageing using the concept of environmental dose

    Article • June 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  106. Spatially-resolved modelling of dust effect on cadmium telluride photovoltaic modules

    Article • Solar Energy, April 2013, Elsevier

    Professor Ralph Gottschalg

  107. Accuracy of Energy Yield Prediction of Photovoltaic Modules

    Article • Japanese Journal of Applied Physics, October 2012, Japan Society of Applied Physics

    Professor Ralph Gottschalg

  108. Accuracy of Energy Yield Prediction of Photovoltaic Modules

    Article • Japanese Journal of Applied Physics, October 2012, Japan Society of Applied Physics

    Professor Ralph Gottschalg

  109. Dust-induced shading on photovoltaic modules

    Article • Progress in Photovoltaics Research and Applications, June 2012, Wiley

    Professor Ralph Gottschalg

  110. Soiling correction model for long term energy prediction in photovoltaic modules

    Article • June 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  111. Solar Profiles and Spectral Modeling for CPV Simulations

    Article • IEEE Journal of Photovoltaics, January 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  112. Performance Monitoring

    Article • January 2012, Elsevier

    Professor Ralph Gottschalg

  113. Limited laser beam induced current measurements: a tool for analysing integrated photovoltaic modules

    Article • Measurement Science and Technology, June 2011, Institute of Physics Publishing

    Professor Ralph Gottschalg

  114. Solar profiles and spectral modelling for CPV simulations

    Article • June 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  115. Effect of shading caused by dust on Cadmium Telluride photovoltaic modules

    Article • June 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  116. Analysis of key performance parameter extraction from current voltage measurements of photovoltaic devices

    Article • June 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  117. Effects of spectrum on the power rating of amorphous silicon photovoltaic devices

    Article • Progress in Photovoltaics Research and Applications, January 2011, Wiley

    Professor Ralph Gottschalg

  118. Effect of loading on long term performance of single junction amorphous silicon modules

    Article • Solar Energy Materials and Solar Cells, January 2011, Elsevier

    Professor Ralph Gottschalg

  119. Optimised inverter sizing for photovoltaic systems in high-latitude maritime climates

    Article • IET Renewable Power Generation, January 2011, the Institution of Engineering and Technology (the IET)

    Professor Ralph Gottschalg

  120. Spatially distributed model for the analysis of laser beam induced current (LBIC) measurements of thin film silicon solar modules

    Article • Solar Energy Materials and Solar Cells, January 2011, Elsevier

    Professor Ralph Gottschalg

  121. Voltage-dependent quantum efficiency measurements of amorphous silicon multi-junction mini-modules

    Article • Solar Energy Materials and Solar Cells, January 2011, Elsevier

    Professor Ralph Gottschalg

  122. Indoor measurement of photovoltaic device characteristics at varying irradiance, temperature and spectrum for energy rating

    Article • Measurement Science and Technology, September 2010, Institute of Physics Publishing

    Professor Ralph Gottschalg

  123. Performance characterisation of photovoltaic modules

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  124. Performance measurements at varying irradiance spectrum, intensity and module temperature of amorphous silicon solar cells

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  125. Large scale PV system monitoring - modules technology intercomparison

    Article • June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  126. Mapping the performance of PV modules, effects of module type and data averaging

    Article • Solar Energy, February 2010, Elsevier

    Professor Ralph Gottschalg

  127. Equilibrium thermal characteristics of a building integrated photovoltaic tiled roof

    Article • Solar Energy, October 2009, Elsevier

    Professor Ralph Gottschalg

  128. Outlier identification in outdoor measurement data - effects of different strategies on the performance descriptors of photovoltaic modules

    Article • June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  129. Electrical mismatch within single junction amorphous silicon and micromorph tandem thin film PV modules

    Article • June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  130. The spectral variation effects on energy yield of optimized multi-junction solar cell

    Article • June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  131. Large scale evaluation of photovoltaic technologies in different climates

    Article • June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  132. Uncertainty in Photovoltaic performance parameters – dependence on location and material

    Article • Solar Energy Materials and Solar Cells, June 2009, Elsevier

    Professor Ralph Gottschalg

  133. Multi-laser LBIC system for thin film PV module characterisation

    Article • Solar Energy Materials and Solar Cells, June 2009, Elsevier

    Professor Ralph Gottschalg

  134. An LED-based photovoltaic measurement system with variable spectrum and flash speed

    Article • Solar Energy Materials and Solar Cells, June 2009, Elsevier

    Professor Ralph Gottschalg

  135. Advantages in using LEDs as the main light source in solar simulators for measuring PV device characteristics

    Article • August 2008, SPIE

    Professor Ralph Gottschalg

  136. Effect of module degradation on inverter sizing

    Article • May 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  137. Applying modern informatics technologies to monitoring photovoltaic (PV) modules and systems

    Article • May 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  138. Modeling the effect of varying spectra on multi junction A-SI solar cells

    Article • Desalination, April 2007, Elsevier

    Professor Ralph Gottschalg

  139. Long-Term Performance of Amorphous Photovoltaic Modules

    Article • January 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  140. The Effects of Solar Cell Capacitance on Calibration Accuracy When using a Flash Simulator

    Article • January 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  141. Accuracy of Energy Prediction Methodologies

    Article • January 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  142. Photovoltaic Performance Measurements in Europe: PV-Catapult Round Robin Tests

    Article • January 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  143. The effect of spectral variations on the performance parameters of single and double junction amorphous silicon solar cells

    Article • Solar Energy Materials and Solar Cells, January 2005, Elsevier

    Professor Ralph Gottschalg

  144. A critical appraisal of the factors affecting energy production from amorphous silicon photovoltaic arrays in a maritime climate

    Article • Solar Energy, December 2004, Elsevier

    Professor Ralph Gottschalg

  145. Effect of shading on amorphous silicon single and double junction photovoltaic modules

    Article • International Journal of Ambient Energy, April 2004, Taylor & Francis

    Professor Ralph Gottschalg

  146. On the importance of considering the incident spectrum when measuring the outdoor performance of amorphous silicon photovoltaic devices

    Article • Measurement Science and Technology, January 2004, Institute of Physics Publishing

    Professor Ralph Gottschalg

  147. Spectral dependence of amorphous silicon photovoltaic device performance

    Article • International Journal of Ambient Energy, January 2004, Taylor & Francis

    Professor Ralph Gottschalg

  148. Effects on photovoltaic solar module performance in the UK climate

    Article • International Journal of Ambient Energy, January 2004, Taylor & Francis

    Professor Ralph Gottschalg

  149. Experimental study of variations of the solar spectrum of relevance to thin film solar cells

    Article • Solar Energy Materials and Solar Cells, September 2003, Elsevier

    Professor Ralph Gottschalg

  150. Investigation of the Back Contact of CDTE Solar Cells

    Article • January 2000, Elsevier

    Professor Ralph Gottschalg

  151. The influence of the measurement environment on the accuracy of the extraction of the physical parameters of solar cells

    Article • Measurement Science and Technology, August 1999, Institute of Physics Publishing

    Dr. Mathias Rommel, Professor Ralph Gottschalg

  152. Parametrisation of thin film solar cells

    Article • International Journal of Ambient Energy, July 1998, Taylor & Francis

    Professor Ralph Gottschalg

  153. Syracuse - a multi-junction concentrator system computer model

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  154. Seasonal performance of a-Si single- and multijunction modules in two locations

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  155. Actual PV module performance including spectral losses in the UK

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  156. Modelling spectral irradiation effects on single- and multijunction amorphous silicon photovoltaic devices

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  157. Experimental investigation of spectral effects on amorphous silicon solar cells in outdoor operation

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg

  158. Optical filtering of solar radiation to increase performance of concentrator systems

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Ralph Gottschalg