Conferences
Mujjuni, F,
Betts, T, Blanchard, R (2023)
Application of observational weather data in evaluating resilience of power systems and adaptation to extreme wind events. In Nixon, JD, Al-Habaibeh, A, Vukovic, V, Asthana, A (ed)
The 3rd International Conference on Energy and Sustainable Development (ICESF); Energy and Sustainable Futures: Proceedings of the 3rd ICESF, 2022. ICESF 2022, Coventry University, UK, pp.127-136, ISBN: 9783031309601. DOI:
10.1007/978-3-031-30960-1_13.
Mujjuni, F, Blanchard, R,
Betts, T (2021)
A case for a new approach in theorizing and operationalisation of resilience for electrical systems in developing countries. In Bhattacharyya, S (ed)
Aligning Local Interventions with the UN Sustainable Developments Goals (SDGs); Proceedings of the Virtual International Conference on Aligning Local Interventions with the UN Sustainable Development Goals, Conference, Institute of Energy and Sustainable Development, De Montfort University, Leicester, UK, pp.168-191.
Barretta, C, Oreski, G, Kyranaki, N, Mansour, DE,
Betts, TR, Bauermann, LP, Resch-Fauster, K (2021)
Effects of artificial ageing tests on EVA degradation: Influence of microclimate and methodology approach. In
49th IEEE Photovoltaic Specialists Conference, Conference Record of the IEEE Photovoltaic Specialists Conference, Philadelphia, USA, pp.312-315, ISBN: 9781665419222. DOI:
10.1109/PVSC43889.2021.9518725.
Koutsourakis, G, Rauer, M, Schmid, A, Bellenda, G,
Betts, T, Blakesley, JC, Bliss, M, Castro, JB, Bothe, K, Dittmann, S, Lopez-Garcia, J, Herrmann, W, Hinken, D, Kenny, RP, Molinero, RR, Pavanello, D, Riechelmann, S, Sträter, H, Vegas, A, Winter, S (2020)
Results of the bifacial PV cells and PV modules power measurement round robin activity of the PV-Enerate Project. In
37th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2020 ); 37th European Photovoltaic Solar Energy Conference and Exhibition, Online, pp.877-882, ISBN: 3936338736. DOI:
10.4229/EUPVSEC20202020-4CO.2.2.
Braga, M, De Oliveira, AKV, Burnham, L, Dittmann, S, Gottschalg, R,
Betts, T, Rodriguez-Gallegos, CD, Reindl, T, Ruther, R (2020)
Solar Over-Irradiance Events: Preliminary Results from a Global Study. In
47th IEEE Photovoltaics Specialists Conference, Conference Record of the IEEE Photovoltaic Specialists Conference, Online, pp.2764-2770, ISBN: 9781728161150. DOI:
10.1109/PVSC45281.2020.9300868.
Silverman, T, Bliss, M, Abbas, A,
Betts, T, Walls, M, Repins, I (2020)
Movement of cracked silicon solar cells during module temperature changes. In
Proceedings of the 46th IEEE Photovoltaics Specialist Conference (PVSC); 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL, pp.1517-1520, ISBN: 9781728104942. DOI:
10.1109/PVSC40753.2019.8981150.
Welch, L, Ulicna, S, Togay, M, Tsai, V, Malkov, A,
Betts, T, Walls, M, Bowers, J (2020)
Extrinsic doping of amine-thiol solution-processed Cu(In,Ga)(S,Se)2 thin film photovoltaics. In
46th IEEE Photovoltaic Specialists Conference (PVSC-46); 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL, pp.1867-1871, ISBN: 9781728104942. DOI:
10.1109/PVSC40753.2019.8980531.
Mariottini, F, Belluardo, G, Bliss, M, Isherwood, P, Cole, IR,
Betts, T (2019)
Assessment and improvement of thermoelectric pyranometer measurements. In
36th European Photovoltaic Solar Energy Conference and Exhibition; Proceedings of the 36th EU PVSEC 2019, Marseille, France, pp.1388-1391, ISBN: 3936338604. DOI:
10.4229/EUPVSEC20192019-5DO.1.3.
Kyranaki, N, Whalley, D, Hutt, D, Gottschalg, R, Betts, T (Accepted for publication) Direct measurement of moisture ingress in PV laminates. In 36th European Photovoltaic Solar Energy Conference and Exhibition, Marseille, pp.1049-1053, ISBN: 3936338604. DOI: 10.4229/EUPVSEC20192019-4AV.1.24.
Kaaya, I, Lindig, S, Hrelja, N, Hernandez, GO, Mariottini, F, Moser, D, Weiss, KA, Iseghem, MV, Chiantore, PV,
Betts, TR (2019)
Service Lifetime Prediction of PV Modules and Systems: Progress of the SOLAR-TRAIN Project. In
46th IEEE Photovoltaic Specialists Conference, Conference Record of the IEEE Photovoltaic Specialists Conference, Chicago, US, pp.1352-1356, ISBN: 9781728104942. DOI:
10.1109/PVSC40753.2019.8980791.
Palmer, D and
Betts, T (2019)
Comparison of typical meteorological year and on-site measurements for solar PV site selection. In
The 15th Photovoltaic Science, Applications and Technology Conference, University of Warwick,ISBN: 0904963853.
Kyranaki, N, Jankovec, M, Topic, M, Gottschalg, R,
Betts, T (2019)
Investigation of moisture ingress and egress in polymer – Glass laminates for PV encapsulation. In
The 15th Photovoltaic Science, Applications and Technology Conference, Scarman Conference Centre, University of Warwick,ISBN: 0904963853.
Mariottini, F,
Betts, T, Belluardo, G (2019)
Uncertainty in calibration and characterisation of pyranometers. In
15th Photovoltaic Science, Applications and Technology Conference (PVSAT-15), University of Warwick,ISBN: 0904963853.
Gebregiorgis, A and
Betts, TR (2019)
Degradation of power output of photovoltaic modules due to accelerated ageing. In
PVSAT-15, Scarman Conference Centre, University of Warwick,ISBN: 0904963853.
Weiss, KA, Kaaya, I, Barretta, C, Ascencio-Vasquez, J, Hrelja, N, Bauermann, LP, Klimm, E, Moser, D, Topič, M, Iseghem, MV, Oreski, G,
Betts, T, Lagunas, AR, Chiantore, P (2018)
Training the Next Generation of PV Reliability Experts (Photovoltaic Life Time Forecast and Evaluation) - The Marie Sklodowska-Curie Actions (MSCA) Project SOLAR-TRAIN. In
IEEE 7th World Conference on Photovoltaic Energy Conversion, 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC, Hawaii, pp.1356-1360, ISBN: 9781538685297. DOI:
10.1109/PVSC.2018.8547663.
Cole, IR and
Betts, TR (2018)
Analysis of Albedo Irradiance Utilizing Multiband (Spectrally Resolved) Satellite Imagery. In
IEEE 7th World Conference on Photovoltaic Energy Conversion, 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC, Hawaii, pp.2288-2292, ISBN: 9781538685297. DOI:
10.1109/PVSC.2018.8547447.
Pravettoni, M, Galleano, R, Zaaiman, W, Alvarez, DA, Belluardo, G,
Betts, TR, Bogeat, JA, Cancillo, ML, Cole, IR, Drobisch, A, Ferretti, N, Friedrich, D, Fucci, R, Gomez, TJ, Graditi, G, Halwachs, M, Haverkamp, E, Hoogendijk, K, Minuto, A, Phinikarides, A, Plag, F, Po, JM, Rennhofer, M, Molinero, RR, Riedel, N, Serrano, A, Theristis, M, Thorseth, A, Timo, G, Vilaplana, JM (2018)
Spectroradiometry in PV: How inter-laboratory comparison may improve measurement accuracy. In
IEEE 7th World Conference on Photovoltaic Energy Conversion, 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC, Hawaii, pp.2584-2589, ISBN: 9781538685297. DOI:
10.1109/PVSC.2018.8547975.
Palmer, D, Cole, IR,
Betts, T, Gottschalg, R (2018)
Estimating rooftop capacity for PV: Are we asking the right question?. In
Proceedings 14th Photovoltaic Science, Applications and Technology Conference (PVSAT-14), London.
Mariottini, F,
Betts, T, Zhu, J, Gottschalg, R (2018)
Evaluation of uncertainty sources and propagation from irradiance sensors to PV energy production. In
Proceedings 14th Photovoltaic Science, Applications and Technology Conference (PVSAT-14), London.
Tsai, V, Bittau, F, Potamialis, C, Bliss, M,
Betts, T, Gottschalg, R (2018)
Combined electrical and optical characterisation of recombination mechanisms and minority carrier lifetime in solar cells. In
PVSAT-14, Imperial College London.
Bliss, M, Smith, A, Baker, J, de Rossi, F, Watson, T, Schutt, K, Snaith, H,
Betts, T, Gottschalg, R (2018)
I-V performance characterisation of perovskite solar cells. In
Photovoltaic Science, Applications and Technology (PVSAT-14), London, UK, pp.5-8.
Koutsourakis, G, Bliss, M,
Betts, T, Gottschalg, R (2018)
Accessing the performance of individual cells of fully encapsulated PV modules using a commercial digital light processing projector. In
14th Photovoltaic Science, Applications and Technology Conference, London, UK, pp.17-20, ISBN: 0904963845.
Kyranaki, N, Zhu, J,
Betts, T, Gottschalg, R (2018)
The impact of acetic acid corrosion on the front-side contacts and the finger electrodes of c-Si PV cells. In
Proceedings of the 14th Photovoltaic Science, Applications and Technology Conference (PVSAT-14), London, UK.
Koutsourakis, G, Bliss, M,
Betts, T, Gottschalg, R (2018)
Utilising digital light processing and compressed sensing for photo-current mapping of encapsulated photovoltaic modules. In
36th European Photovoltaic Solar Energy Conference and Exhibition, Brussels, Belgium,ISBN: 3936338507. DOI:
10.4229/35thEUPVSEC20182018-5BO.11.6.
Riedel, N, Lancia, AS, Amdemeskel, M, Thorsteinsson, S, Poulsen, PB, Plag, F, Kroger, I, Slooff, LH, Jansen, MJ, Carr, AJ, Manshanden, P, Bliss, M,
Betts, T, Jauregui, IP, Mayo, ME, Balenzategui, JL, Roldan, R, Kraling, U, Baarah, G, Iandolo, B, Davidson, RS, Thorseth, A, Dam-Hansen, C, dos Reis Benatto, GA (2018)
Interlaboratory comparison of methodologies for measuring the angle of incidence dependence of solar cells. In
36th European Photovoltaic Solar Energy Conference and Exhibition, Bussels, Belgium,ISBN: 3936338507. DOI:
10.4229/35thEUPVSEC20182018-5BO.10.4.
Tsai, V, Potamialis, C, Ulicna, S, Bliss, M,
Betts, T, Gottschalg, R (2018)
Quantifying minority carrier lifetime and collection efficiency of solar cells by combined optical and electrical characterisation techniques. In
36th European Photovoltaic Solar Energy Conference and Exhibition, Brussels, Belgium,ISBN: 3936338507. DOI:
10.4229/35thEUPVSEC20182018-1CV.4.16.
Kyranaki, N, Zhu, J, Gottschalg, R,
Betts, T (2018)
Investigating the degradation of front and rear sides of c-Si PV cells exposed to acetic acid. In
35th European Photovoltaic Solar Energy Conference and Exhibition INVESTIGATING, Brussels, Belgium,ISBN: 3936338507. DOI:
10.4229/35thEUPVSEC20182018-5CV.3.47.
Tsai, V, Koutsourakis, G, Bliss, M,
Betts, T, Gottschalg, R (2017)
Evaluation of effective carrier lifetime of CdTe solar cells using transient photovoltage decay measurements. In
13th Photovoltaic Science, Application and Technology Conference, Bangor.
Bliss, M, Mihaylov, BV, Koutsourakis, G,
Betts, T, Gottschalg, R (2017)
Uncertainty contributions in photocurrent linearity measurements of PV devices using a flash solar simulator. In
13th Photovoltaic Science, Application and Technology Conference, Bangor, UK.
Koutsourakis, G, Hall, SRG, Bliss, M,
Betts, T, Gottschalg, R (2017)
A simple optical setup for current mapping of small area PV devices using different sampling strategies. In
13th Photovoltaic Science Application and Technology (PVSAT-13), Bangor, UK.
Zhu, J, Montiel-Chicharro, D,
Betts, T, Gottschalg, R (2017)
Correlation of degree of EVA crosslinking with formation and discharge of acetic acid in PV modules. In
33rd EU PVSEC, Amsterdam,ISBN: 3936338477. DOI:
10.4229/EUPVSEC20172017-5DV.3.21.
Zhu, J, Ng, C, Montiel-Chicharro, D,
Betts, T, Gottschalg, R (2017)
Water vapour transmission rate of Ethylene Vinyl Acetate (EVA): Encapsulant with different curing levels. In
13 PVSAT, Bangor,ISBN: 0904963837.
Owen-Bellini, M, Zhu, J,
Betts, T, Gottschalg, R (2017)
Thermo-mechanical stresses of silicon photovoltaic modules. In
13th Photovoltaic Science Application and Technology, Bangor.
Koubli, E, Palmer, D,
Betts, T, Rowley, P, Gottschalg, R (2017)
Inference of missing PV monitoring data using neural networks. In
43rd IEEE Photovoltaics Specialists Conference, 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017, Portland, OR, USA, pp.1-5, ISBN: 9781509056057. DOI:
10.1109/PVSC.2017.8366807.
Koutsourakis, G, Cashmore, M, Bliss, M, Hall, SRG,
Betts, TR, Gottschalg, R (2016)
Compressed sensing current mapping methods for PV characterisation. In
2016 IEEE 43rd Photovoltaic Specialists Conference, 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016, Portland, OR, USA, pp.1-5, ISBN: 9781509056057. DOI:
10.1109/PVSC.2017.8366268.
Bedrich, KG, Bliss, M,
Betts, TR, Gottschalg, R (2016)
Electroluminescence imaging of PV devices: Camera calibration and image correction. In
2016 IEEE 43rd Photovoltaic Specialists Conference, 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016, Portland, OR, USA, pp.1-6, ISBN: 9781509056057. DOI:
10.1109/PVSC.2017.8366325.
Eeles, AS, Gottschalg, R,
Betts, TR (2016)
Optimising I-V measurements of high capacitance modules using dark impedance measurements. In
2016 IEEE 43rd Photovoltaic Specialists Conference, 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016, Portland, OR, USA, pp.1-5, ISBN: 9781509056057. DOI:
10.1109/PVSC.2017.8366886.
Koubli, E, Palmer, D,
Betts, T, Rowley, P, Gottschalg, R (2016)
Inference of missing PV monitoring data using neural networks. In
2016 IEEE 43rd Photovoltaic Specialists Conference, 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016, Portland, OR, USA, pp.1-5, ISBN: 9781509056057. DOI:
10.1109/PVSC.2016.7750305.
Owen-Bellini, M, Zhu, J,
Betts, T, Gottschalg, R (2016) Module Temperature Stress Potentials in the UK: What is most relevant?. In
12th Photovoltaic Science Application and Technology, Liverpool.
Palmer, D, Cole, IR,
Betts, T, Gottschalg, R (2016)
Assessment of potential for photovoltaic roof installations by extraction of roof tilt from LiDAR data and aggregation to census geography. In
, IET Renewable Power Generation. DOI:
10.1049/iet-rpg.2015.0388.
Husna, HA, Smith, A,
Betts, T, Gottschalg, R (2016)
Validation of spectral response polychromatic method measurement of full size photovoltaic modules using outdoor measured data. In
12th Photovoltaic Science, Application and Technology Conference, University of Liverpool,ISBN: 0904963829.
Koutsourakis, G, Bliss, M, Hall, SRG,
Betts, T, Gottschalg, R (2016)
Compressed sensing current mapping of PV devices using a DLP projector. In
12th Photovoltaic Science, Application and Technology Conference, Liverpool.
Bliss, M, Koutsourakis, G,
Betts, T, Gottschalg, R (2016)
Development of a solar cell spectral response mapping system using multi-LBIC excitation. In
12th Photovoltaic Science, Application and Technology Conference, Liverpool,ISBN: 0904963829.
Bedrich, K, Bliss, M,
Betts, T, Gottschalg, R (2016)
Electroluminescence imaging of PV devices: single-time-effect statistics and removal. In
PVSAT, Liverpool.
Zhu, J, Surier, G, Wu, D, Montiel-Chicharro, D,
Betts, T, Gottschalg, R (2016)
Adhesion requirements for photovoltaic modules of polymeric encapsulation. In
, USA,ISBN: 9781467391382. DOI:
10.1109/IRPS.2016.7574636.
Smith, A, Gottschalg, R,
Betts, T, Bora, B, Gupta, B, Kumar, D, Magare, DB, Sastry, OS, Saurabh, S (2016)
UK-India PV module measurement intercomparison [Abstract]. In
12th Photovoltaic Science, Application and Technology Conference, Liverpool,ISBN: 0904963829.
Palmer, D, Koumpli, E,
Betts, T, Gottschalg, R (2016)
Space and time analysis of irradiation variation across the UK: A 10 year study of solar farm yield. In
Proceedings 12th Photovoltaic Science, Applications and Technology Conference, 2016, Liverpool,ISBN: 0904963829.
Palmer, D, Koumpli, E,
Betts, T, Gottschalg, R (2016)
Comparison of solar radiation and PV generation variability with system dispersion in the UK. In
Proceedings 12th Photovoltaic Science, Applications and Technology Conference, 2016, Liverpool,ISBN: 0904963829.
Cole, IR, Palmer, D,
Betts, T, Gottschalg, R (2016)
A fast and effective approach to modelling solar energy potential in complex environments. In
Proceedings 12th Photovoltaic Science, Applications and Technology Conference, 2016, Liverpool,ISBN: 0904963829.
Cole, I, Palmer, D,
Betts, T, Gottschalg, R (2016)
A fast and effective approach to modelling solar energy potential in complex shading environments. In
32st European Photovoltaic Solar Energy Conference and Exhibition, 2016, Munich,ISBN: 3936338418. DOI:
10.4229/EUPVSEC20162016-5EO.3.6.
Zhu, J, Montiel-Chicharro, D,
Betts, T, Gottschalg, R (2016)
Development of adhesive and cohesive failures in EVA-backsheet structures in environmental testing. In
32 EU PVSEC, Munich,ISBN: 3936338418. DOI:
10.4229/EUPVSEC20162016-5BO.10.4.
Zhu, J, Montiel-Chicharro, D, Owen-Bellini, M,
Betts, T, Gottschalg, R (2016)
The role of EVA encapsulation in the degradation of wafer based PV modules. In
12 PVSAT, Liverpool,ISBN: 0904963829.
Owen-Bellini, M, Zhu, J,
Betts, T, Gottschalg, R (2015) Environmental Stress Potentials of Different Climatic Regions. In
31st European Photovoltaic Solar Energy Conference and Exhibition, Hamburg.
Bedrich, KG, Bliss, M,
Betts, TR, Gottschalg, R (2015)
Electroluminescence Imaging of PV devices: Determining the image quality. In
2015 IEEE 42nd Photovoltaic Specialists Conference (PVSC), 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), pp.1-5, DOI:
10.1109/pvsc.2015.7356011.
Bedrich, K, Bliss, M,
Betts, T, Gottschalg, R (2015)
Module scale electroluminescence of PV devices: measurements and image quality. In
PVSAT, Leeds, pp.121-124.
Wu, X, Bliss, M,
Betts, T, Gottschalg, R (2015)
Effects of lateral resistances in photovoltaic cells and full 2-D parameter extraction for the spatially-resolved models using electroluminescence images. In
11th Photovoltaic Science Application and Technology (PVSAT-11), Leeds, pp.61-64, ISBN: 0904963810.
Palmer, D,
Betts, T, Gottschalg, R (2015)
Assessment of potential for photovoltaic roof installations by extraction of roof slope from lidar data and aggregation to census geography. In
, Leeds, pp.165-165, ISBN: 0904963810.
Rowley, P, Leicester, P, Palmer, D, Westacott, P, Candelise, C, Gottschalg, R,
Betts, T (2015)
Multi-domain analysis of photovoltaic impacts via integrated spatial and probabilistic modelling. In
, IET Renewable Power Generation. DOI:
10.1049/iet-rpg.2014.0374.
Zhu, J, Bliss, M,
Betts, T, Gottschalg, R (2015)
Towards modelling realistic ageing rates of amorphous silicon devices in operational environments. In
Japanese Journal of Applied Physics,, DOI:
10.7567/JJAP.54.08KG03.
Mihaylov, B,
Betts, T, Gottschalg, R, Bliss, M (2015)
Uncertainty in photovoltaic module energy rating. In
11th Photovoltaic Science, Applications and Technology Conference, Leeds,ISBN: 0904963810.
Koutsourakis, G, Cashmore, M, Hall, SRG, Bliss, M,
Betts, T, Gottschalg, R (2015)
Towards current mapping of photovoltaic devices by compressed imaging. In
11th Photovoltaic Science, Applications and Technology Conference, Leeds,ISBN: 0904963810.
Husna, HA, Smith, A, Krawczynski, M,
Betts, T, Gottschalg, R (2015)
Spectral response measurements of photovoltaic devices using a pulsed source solar simulator. In
PVSAT-11, University of Leeds.
Palmer, D, Cole, IR, Goss, B,
Betts, T, Gottschalg, R (2015)
Detection of roof shading for PV based on LiDAR data using a multi-modal approach. In
EU PVSEC 2015, Hamburg,ISBN: 3936338396. DOI:
10.4229/EUPVSEC20152015-5CO.14.2.
Koutsourakis, G, Wu, X, Cashmore, M, Hall, SRG, Bliss, M,
Betts, T, Gottschalg, R (2015)
Fast current mapping of photovoltaic devices using compressive sampling. In
31st European PV Solar Energy Conference, Hamburg, Germany, pp.29-29, DOI:
10.4229/EUPVSEC20152015-1AO.2.3.
Koumpli, E, Palmer, D, Rowley, P,
Betts, T, Gottschalg, R (2015)
Assessment of PV system performance with incomplete monitoring data. In
Conference: 31st European Photovoltaic Solar Energy Conference and Exhibition,, Hamburg, Germany, pp.1594-1597, ISBN: 3936338396. DOI:
10.4229/EUPVSEC20152015-5AO.8.6.
Bedrich, K, Bliss, M,
Betts, T, Gottschalg, R (2015)
Electroluminescence imaging of PV devices: uncertainty due to optical and perspective distortion. In
PVSEC, Hamburg,ISBN: 3936338396. DOI:
10.4229/EUPVSEC20152015-5CO.13.4.
Zhu, J, Wu, D, Montiel-Chicharro, D, Owen-Bellini, M, Bedrich, KG,
Betts, T, Gottschalg, R (2015)
Influences of lamination condition on device durability for EVA-encapsulated PV modules. In
31 EU PVSEC, Hamburg,ISBN: 3-936338-39-6. DOI:
10.4229/EUPVSEC20152015-5CV.2.2.
Zhu, J, Surier, G, Wu, D, Montiel-Chicharro, D,
Betts, T, Gottschalg, R (2015)
Adhesion testing for photovoltaic laminates. In
11 PVSAT, Leeds.
Wu, X, Bliss, M, Zhu, J,
Betts, TR, Gottschalg, R (2014)
Fast electrical modeling for spatially-resolved characterization of amorphous silicon photovoltaic cells. In
40th IEEE Photovoltaic Specialists Conference (PVSC-40), Denver, USA, pp.2620-2625, DOI:
10.1109/PVSC.2014.6925467.
Wu, X, Bliss, betts, Gottschalg, (2014) Fast spatially-resolved electrical modelling for photovoltaic cells using accelerated PV-oriented nodal analysis. In
10th Photovoltaic Science Application and Technology (PVSAT-10), Loughborough, pp.225-228.
Wu, DAN, Zhu, J,
Betts, T, Gottschalg, R (2014) The Effects of Lamination Conditions on the Properties of Encapsulation Materials of Photovoltaic Modules. In
10 PVSAT, Loughborough.
Wu, X, Bliss, M, Sinha, A,
Betts, T, Gupta, R, Gottschalg, R (2014)
Distributed electrical network modelling approach for spatially resolved characterisation of photovoltaic modules. In
, IET RENEWABLE POWER GENERATION, pp.459-466, DOI:
10.1049/iet-rpg.2013.0242.
Sara, ID,
Betts, T, Gottschalg, R (2014)
Determining spectral response of a photovoltaic device using polychromatic filters. In
, IET RENEWABLE POWER GENERATION, pp.467-473, DOI:
10.1049/iet-rpg.2013.0248.
Bliss, M, Wu, X, Bedrich, K,
Betts, T, Gottschalg, R (2014)
Spatially and spectrally resolved electroluminescence measurement system for PV characterisation. In
10th Photovoltaic Science Application and Technology, Loughborough, UK, pp.201-204.
Zhu, J,
Betts, T, Gottschalg, R (2014)
Effects of lamination condition on durability of PV module packaging and performance. In
PVSAT10, Loughborough.
Mihaylov, B, Bowers, J,
Betts, T, Gottschalg, R, Krametz, T, Leidl, R, Berger, KA, Zamini, S, Dekker, NJJ, Graditi, G, Roca, F, Pellegrino, M, Flaminio, G, Pugliatti, P, Stefano, AD, Aleo, F, Gigliucci, G, Ferrara, W, Razongles, G, Merten, J, Pozza, A, Lancia, AS, Hoffmann, S, Koehl, M, Gerber, A, Noll, J, Paletta, F, Friesen, G, Dittmann, S (2014)
Results of the Sophia module intercomparison part-1: stc, low irradiance conditions and temperature coefficients measurements of C-Si technologies. In
29th European Photovoltaic Solar Energy Conference and Exhibition, Amsterdam, pp.2443-2448, ISBN: 3936338345. DOI:
10.4229/EUPVSEC20142014-5DO.9.3.
Mihaylov, B, Bliss, M,
Betts, T, Gottschalg, R (2014)
Propagation of measurement uncertainties in mismatch factor correction for photovoltaic device calibration. In
6th World Conference on Photovoltaic Energy Conversion, Kyoto.
Mihaylov, B, Bowers, J,
Betts, T, Gottschalg, R, Krametz, T, Leidl, R, Berger, KA, Zamini, S, Dekker, NJJ, Graditi, G, Roca, F, Pellegrino, M, Flaminio, G, Pugliatti, P, Stefano, AD, Aleo, F, Gigliucci, G, Ferrara, W, Razongles, G, Merten, J, Pozza, A, Lancia, AS, Hoffmann, S, Koehl, M, Gerber, A, Noll, J, Paletta, F, Friesen, G, Dittmann, S (2014)
Uncertainty in energy yield estimation based on C-Si module roundrobin results. In
6th World Conference on Photovoltaic Energy Conversion, Kyoto.
Mihaylov, B, Bliss, M,
Betts, T, Gottschalg, R (2014)
Temperature coefficient measurements of PV modules and uncertainty analysis. In
10th Photovoltaic Science Application and Technology Conference and Exhibition, Loughborough.
Bliss, M, Plyta, F,
Betts, T, Gottschalg, R (2014)
LEDs based characterisation of photovoltaic devices. In
Energy Efficient LED Lighting and Solar PhotoVoltaic Systems Conference 2014, Kanpur, India.
Eeles, A, Gottschalg, R,
Betts, T (2014)
Transient preconditioning in CIGS solar cells and modules. In
29th European Photovoltaic Solar Energy Conference (EUPVSEC), Amsterdam,ISBN: 3936338345. DOI:
10.4229/EUPVSEC20142014-5CV.2.9.
Wu, D, Zhu, J, Frese, J, Montiel-Chicharro, D,
Betts, T, Gottschalg, R (2014)
Effects of different lamination conditions on the reliability of encapsulation materials of pv modules: adhesion strength. In
6 World Conference on Photovoltaic Energy Conversion, Kyoto.
Wu, X, Bliss, M,
Betts, TR, Sinha, A, Gupta, R, Gottschalg, R (2013) Modeling Spatial Electrical Properties in Photovoltaic Modules Using PV-oriented Nodal Analysis. In
39th Annual Conference of the IEEE Industrial Electronics Society (IECON 2013), Vienna, Austria, pp.8090-8095.
Wu, X, Bliss, M,
Betts, T, Gottschalg, R, Sinha, A, Gupta, R (2013)
Modeling spatial electrical properties in photovoltaic modules using PV-oriented nodal analysis. In
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society (IECON 2013), IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, pp.8098-8103, DOI:
10.1109/iecon.2013.6700487.
Mihaylov, BV, Bliss, M,
Betts, TR, Gottschalg, R (2013)
UNCERTAINTY CONSIDERATIONS OF INDOOR PV MODULE CALIBRATION BASED ON MONTE CARLO SIMULATIONS. In
28th European PV Solar Energy Conference and Exibition, Paris, France, pp.1-5, DOI:
10.4229/28thEUPVSEC2013-4AV.6.54.
Bliss, M, Smith, A, Mihaylov, B, Krawczynski, M,
Betts, TR, Gottschalg, R (2013)
Measurement of Flash Solar Simulator Output Spectra over Bulb Lifetime and the Effects on Spectral Mismatch. In
28th European PV Solar Energy Conference and Exibition, Paris, France, pp.3505-3509, ISBN: 3-936338-33-7. DOI:
10.4229/28thEUPVSEC2013-4AV.6.46.
Eeles, A, Gottschalg, R,
Betts, TR (2013)
Preconditioning Effects on CIGS Solar Cells and Modules Based on Metastabilities Caused by the Se-Cu di-Vacancy Complex. In
28th EU PVSEC, Paris, pp.2887-2892, DOI:
10.4229/28thEUPVSEC2013-4CO.11.6.
Zhu, J, Bliss, M,
Betts, TR, Gottschalg, R (2013)
Modeling A-Si module ageing using the concept of environmental dose. In
IEEE 39th Photovoltaic Specialists Conference, Tampa, FL, USA, pp.1625-1630, DOI:
10.1109/PVSC.2013.6744456.
Wu, X, Bliss, M, Sinha, A,
Betts, TR, Gupta, R, Gottschalg, R (2013) A Distributed Network Modelling Approach for Spatially-resolved Characterisation of
Photovoltaic Modules. In
PVSAT-9, Swansea, pp.49-52.
Sara, ID,
Betts, TR, Gottschalg, R (2013) Determining Spectral Response of a Photovoltaic Device using Polychromatic Filters. In
PVSAT-9, Swansea, pp.63-66.
Betts, TR and Gottschalg, R (2013) Expected Variability of Monthly and Annual Energy Yield over PV System Lifetime. In
PVSAT-9, Swansea, pp.75-78.
Bliss, M, Smith, A, Mihaylov, BV,
Betts, TR, Gottschalg, R (2013)
Spectral Changes of Solar Simulator Xenon Flash Bulbs over Lifetime and its Effects
on Measurement Uncertainty. In
PVSAT-9, Swansea, pp.107-110.
Eeles, AE,
Betts, TR, Gottschalg, R (2013) The Effect of Capacitance on Performance Measurements of Dye Sensitised Solar Cells. In
PVSAT-9, Swansea, pp.123-126.
Mihaylov, BV, Bliss, M,
Betts, TR, Gottschalg, R (2013)
Review of Uncertainty Sources in Indoor PV Calibration of c-SI, and Thin Film Single
Junction and Multi Junction Cells and Modules. In
PVSAT-9, Swansea, pp.179-182.
Plyta, F,
Betts, TR, Gottschalg, R (2013) Design Options of an LED Solar Simulator. In
PVSAT-9, Swansea, pp.195-198.
Wu, D, Hiwarkar, V, Ashcroft, I, Wildman, R, Zhu, J,
Betts, TR, Gottschalg, R (2013)
Factors Influencing the Measured Adhesive Strength between Glass and Encapsulant
of Photovoltaic Modules. In
PVSAT-9, Swansea, pp.203-206.
Zhu, J, Bliss, M,
Betts, TR, Gottschalg, R (2013)
Modelling of realistic annealing behaviour of amorphous silicon photovoltaic devices. In
PVSAT-9, Swansea, pp.215-218.
Plyta, F,
Betts, TR, Gottschalg, R (2013)
Potential for LED Solar Simulators. In
39th IEEE Photovoltaic Specialists Conference, Tampa, Florida, USA, pp.0701-0705.
Plyta, F,
Betts, TR, Gottschalg, R (2013)
TOWARDS A FULLY LED-BASED SOLAR SIMULATOR - SPECTRAL MISMATCH CONSIDERATIONS. In
28th European Photovoltaic Solar Energy Conference and Exhibition, Paris, France, pp.3496-3499.
Plyta, F,
Betts, TR, Gottschalg, R (2013)
Potential for LED solar simulators. In
, Conference Record of the IEEE Photovoltaic Specialists Conference, pp.701-705, DOI:
10.1109/PVSC.2013.6744248.
Qasem, H,
Betts, TR, Gottschalg, R (2012)
Soiling correction model for long term energy prediction in photovoltaic modules. In
, Conference Record of the IEEE Photovoltaic Specialists Conference, pp.3397-3401, DOI:
10.1109/PVSC.2012.6318299.
Sara, ID,
Betts, TR, Gottschalg, R (2012) Analysis of a Suitable Model for Spectral Response of a Photovoltaic Device. In
27th EU-PVSEC, Frankfurt, pp.471-474.
Qasem, H, AlBusairi, H,
Betts, TR, Gottschalg, R (2012) Measurements of Dust Induced Performance Losses on Micromorph Photovoltaic Modules in Kuwait. In
27th EU-PVSEC, Frankfurt, pp.3010-3013.
Shikoh, AS,
Betts, TR, Williams, SR, Gottschalg, R, Neumann, D, Prast, MO, Nositschka, WA (2012) Representation of Optical Losses in PV System Yield Estimates. In
27th EU-PVSEC, Frankfurt, pp.3351-3354.
Weigl, T, Nagl, L, Weizenbeck, J, Zehner, M, Augel, M, Öchsner, P, Giesler, B, Becker, G, Mayer, O,
Betts, TR, Gottschalg, R (2012) Modelling and Validation of Spatial Irradiance Characteristics for Localised Irradiance Fluctuations and Enhancements. In
27th EU-PVSEC, Frankfurt, pp.3801-3804.
Goss, B, Gottschalg, R,
Betts, TR (2012)
Uncertainty Analysis of Photovoltaic Energy Yield Prediction. In
8th Photovoltaic Science Application and Technology (PVSAT-8) Conference and Exhibition,, Newcastle, England, pp.157-160.
Plyta, F, Mihaylov, BV,
Betts, TR, Gottschalg, R (2012) Optical Design of a LED Solar Simulator and Survey on its Performance Characterisation Capability. In Hutchins, MG, Pearsall, N, Cole, A (ed)
8th Photovoltaic Science, Applications and Technology Conference, Northumbria University, Newcastle upon Tyne, England, pp.85-88, ISBN: 0 904963 78 0.
Wu, D, Zhu, J,
Betts, T, Gottschalg, R (2012)
PV Module Degradation Mechanisms under Different Environmental Stress Factors. In Hutchins, M, Pearsall, N, Cole, A (ed)
8th Photovoltaic Science Application and Technology (PVSAT-8) Conference and Exhibition, Northumbria University, Newcastle upon Tyne, pp.177-180.
Sara, ID,
Betts, TR, Gottschalg, R (2012) Factors influencing the Short-circuit Current of a Tandem Photovoltaic Device. In Hutchins, MG, Pearsall, N, Cole, A (ed)
PVSAT-8, Newcastle upon Tyne, pp.165-168.
Qasem, H,
Betts, TR, Gottschalg, R (2011)
Effect of shading caused by dust on cadmium telluride photovoltaic modules. In
, Conference Record of the IEEE Photovoltaic Specialists Conference, pp.003199-003204, DOI:
10.1109/PVSC.2011.6186620.
Qasem, H,
Betts, TR, Sara, ID, Bliss, M, Zhu, J, Gottschalg, R (2011)
Analysis of key performance parameter extraction from current voltage measurements of photovoltaic devices. In
, Conference Record of the IEEE Photovoltaic Specialists Conference, pp.002283-002288, DOI:
10.1109/PVSC.2011.6186410.
Williams, SR,
Betts, TR, Gottschalg, R, Neumann, D, Prast, MO, Nositschka, WA (2011) Evaluating the Outdoor Performance of PV Modules with Different Glass Textures. In
26th EU-PVSEC, Hamburg, pp.3152-3155.
Gottschalg, R and
Betts, TR (2011) Robustness of Energy Yield Measurements of Photovoltaic Modules. In
26th EU-PVSEC, Hamburg, pp.3234-3237.
Qasem, H,
Betts, TR, Müllejans, H, AlBusairi, H, Gottschalg, R (2011)
Effect of Dust Shading on Photovoltaic Modules. In
26th EU-PVSEC, Hamburg, pp.3652-3655.
Zehner, M, Weigl, T, Hartmann, M, Thaler, S, Schrank, O, Czakalla, M, Mayer, B,
Betts, TR, Gottschalg, R, Behrens, K, Koenig Langlo, G, Giesler, B, Becker, G, Mayer, O (2011) Energy Loss Due to Irradiance Enhancement. In
26th EU-PVSEC, Hamburg, pp.3935-3938.
Giesler, B, Czakalla, M, Zehner, M, Wirth, G, Wizemann, I, Maletz, K, Bothner, M, Becker, G,
Betts, TR, Gottschalg, R, Vollweiter, T, Bäuml, T, Kumerle, G (2011) Operating Data Analysis of Various Subsystems at the 20 MW PV Power Plant Rothenburg. In
26th EU-PVSEC, Hamburg, pp.4245-4248.
Bliss, M, Zhu, J,
Betts, TR, Gottschalg, R (2011)
Performance of an Amorphous Silicon Mini Module in the Initital, Light-Induced Degraded and Annealed States. In Hutchins, M and Pearsall, N (ed)
7th Photovoltaic Science Applications and Technology Conference (PVSAT-7), 7th Photovoltaic Science Applications and Technology Conference, Edinburgh, UK, pp.145-148, ISBN: 0 904963 77 2.
Sara, ID,
Betts, TR, Gottschalg, R (2011) Analysis of Uncertainty in PV Device Spectral Response Measurements. In
Proceedings of the 7th Photovoltaic Science, Applications and Technology Conference, Edinburgh, pp.213-216, ISBN: 0 904963 77 2.
Roy, J,
Betts, TR, Gottschalg, R (2011) Validation of the Energy Yield Prediction of Photovoltaic Modules. In
Proceedings of the 7th Photovoltaic Science, Applications and Technology Conference, Edinburgh, pp.197-200, ISBN: 0 904963 772.
Qasem, H,
Betts, TR, Gottschalg, R (2011)
Effect of Dust on Photovoltaic Thinfilm Modules. In Society, TSE (ed)
Proceedings of 7th Photovoltaic Science, Applications and Technology Conference, Edinburgh, pp.273-276, ISBN: 0 904963 77 2.
Qasem, H,
Betts, TR, Mullejans, H, AlBusairi, H, Gottschalg, R (2011)
Dust Effect on PV Modules. In
Proceedings of the 7th Photovoltaic Science, Applications and Technology Conference, Edinburgh, pp.105-108, ISBN: 0 904963 77 2.
Betts, TR, Jagomagi, A, Gottschalg, R (2011) Determination of PV Module Performance Parameters from Outdoor Measurements. In
Proceedings of the 7th Photovoltaic Science, Applications and Technology Conference, Edinburgh, pp.173-176, ISBN: 0 904963 77 2.
Gottschalg, R and
Betts, TR (2011) Reliability of Side by Side Energy Yield Measurements of Photovoltaic Modules. In
Proceedings of the 7th Photovoltaic Science, Applications and Technology Conference, Edinburgh, pp.109-112, ISBN: 0 904963 77 2.
Krawczynski, M, Strobel, MB,
Betts, TR, Gottschalg, R (2011)
Spectral Irradiance Measurements for Photovoltaic Sysems in Maritime Climates. In
Proceedings of the 7th Photovoltaic Science, Applications and Technology Conference, Edinburgh, pp.277-280, ISBN: 0 904963 77 2.
Vorasayan, P,
Betts, TR, Gottschalg, R (2011)
Spatially distributed model for the analysis of laser beam induced current (LBIC) measurements of thin film silicon solar modules. In
19th International Photovoltaic Science and Engineering Conference and Exhibition (PVSEC-19), SOLAR ENERGY MATERIALS AND SOLAR CELLS, Jeju, SOUTH KOREA, pp.111-114, DOI:
10.1016/j.solmat.2010.02.020.
Astawa, K,
Betts, TR, Gottschalg, R (2011)
Effect of loading on long term performance of single junction amorphous silicon modules. In
19th International Photovoltaic Science and Engineering Conference and Exhibition (PVSEC-19), SOLAR ENERGY MATERIALS AND SOLAR CELLS, Jeju, SOUTH KOREA, pp.119-122, DOI:
10.1016/j.solmat.2010.04.071.
Zhu, J, Bliss, M,
Betts, TR, Gottschalg, R (2011)
Ageing of amorphous silicon devices in dependence of irradiance dose. In PVSEC-21, (ed)
21st International Photovoltaic Science and Engineering Conference (PVSEC-21), Fukuoka, Japan, pp.1-2.
Zhu, J,
Betts, TR, Gottschalg, R (2011) A novel fitting approach to determine physical parameters for amorphous silicon devices including characteristics of carrier lifetime-mobility product. In Hutchins, M and Pearsall, N (ed)
7th Photovoltaic Science Applications and Technology Conference (PVSAT-7), Edinburgh, UK, pp.193-196.
Zhu, J,
Betts, TR, Gottschalg, R (2011) Determination of carrier lifetime and mobility product for amorphous silicon devices. In PVSEC-21, (ed)
21st International Photovoltaic Science and Engineering Conference (PVSEC-21), Fukuoka, Japan, pp.1-2.
Wu, D, Zhu, J,
Betts, TR, Gottschalg, R (2011)
Long term degradation of photovoltaic devices under real outdoor operating conditions. In PVSEC-21, (ed)
21st International Photovoltaic Science and Engineering Conference (PVSEC-21), Fukuoka, Japan, pp.1-2.
Bliss, M, Zhu, J,
Betts, TR, Gottschalg, R (2011)
Performance of amorphous silicon in the initial, degraded and annealed states under varying spectrum, irradiance and temperature. In WIP- Renewable Energies, (ed)
26th European Photovoltaic Solar Energy Conference (EUPVSEC-26), Hamburg, Germany, pp.2569-2573.
Herrmann, W, Zamini, S, Fabero, F,
Betts, TR, van der Borg, N, Kiefer, K, Friesen, G, Muellejans, H, Mohring, HD, Vazquez, M, Fraile, D (2010) PV Module Output Power Characterisation in Test Laboratories and in the PV Inudstry - Results of the European Performance Project. In
Proceedings of the 5th World Conference on Photovoltaic Energy Conversion, Valencia, Spain, pp.3879-3883, ISBN: 3 936338 26 4.
Krawczynski, M, Strobel, M, Goss, B, Bristow, N, Bliss, M,
Betts, TR, Gottschalg, R (2010)
Large Scale PV System Monitoring - Modules Technology Intercomparison. In
35th IEEE Photovoltaic Specialists Conference (IEEE-PVSC 35), Proceedings of the 35th IEEE Photovoltaic Specialists Conference (IEEE-PVSC 35), Honolulu, USA, pp.2295-2300, ISBN: 978 1 4244 5890 5.
Bliss, M,
Betts, TR, Gottschalg, R (2010)
Performance Measurements at Varying Irradiance Spectrum, Intensity and Module Temperature of Amorphous Silicon Solar Cells. In
35th IEEE Photovoltaic Specialists Conference (IEEE-PVSC 35), Proceedings of the 35th IEEE Photovoltaic Specialists Conference (IEEE-PVSC 35), Honolulu, USA, pp.2660-2665, ISBN: 978 1 4244 5890 5.
Roy, J, Bliss, M,
Betts, TR, Gottschalg, R (2010)
Effect of I-V Translations of Irradiance-Temperature on the Energy Yield Prediction of PV Module and Spectral Changes over Irradiance and Temperature. In Hutchins, M and Pearsall, N (ed)
(PVSAT-6), 6th Photovoltaic Science Applications and Technology Conference Proceedings, Southampton, UK, pp.149-152, ISBN: 0 904963 75 6.
Bliss, M, Roy, J,
Betts, TR, Gottschalg, R (2010)
Indoor Measurement of GTE-matrix for Energy Rating. In Hutchins, M and Pearsall, N (ed)
(PVSAT-6), 6th Photovoltaic Science Applications and Technology Conference Proceedings, Southampton, UK, pp.169-172, ISBN: 0 904963 75 6.
Stellbogen, D, Mohring, HD, Jagomagi, A, Mottus, E, Friesen, G, Domine, D, Fabero, F,
Betts, TR, Gottschalg, R, Zdanowicz, T, Prorok, M, Herrmann, W, Martin, JL, Guerin, DMA, Merten, J, Faiman, D (2010) Comparative Outdoor Characterisation Of PV Modules Across Europe. In
25th European Photovoltaic Solar Energy Conference and Exhibition/5th World Conference on Photovoltaic Energy Conversion, Valencia, pp.3774-3778, ISBN: 3-936338-26-4.
Zehner, M, Hartmann, M, Weizenbeck, J, Gratzl, T, Weigl, T, Mayer, B, Wirth, G, Krawczynski, M,
Betts, TR, Gottschalg, R, Hammer, A, Giesler, B, Becker, G, Mayer, O (2010) Systematic Analysis Of Meteorological Irradiation Effects. In
25th European Photovoltaic Solar Energy Conference and Exhibition/5th World Conference on Photovoltaic Energy Conversion, Valencia, pp.4545-4548, ISBN: 3-936338-26-4.
Domine, D, Jagomagi, A, Guerin, DMA, Friesen, G, Mottus, E, Mohring, HD, Stellbogen, D,
Betts, TR, Gottschalg, R, Zdanowicz, T, Prorok, M, Fabero, F, Faiman, D, Herrmann, W (2010) Uncertainties Of PV Module - Long-Term Outdoor Testing. In
25th European Photovoltaic Solar Energy Conference and Exhibition/5th World Conference on Photovoltaic Energy Conversion, Valencia, pp.4172-4178, ISBN: 3-936338-26-4.
Dittmann, S, Friesen, G, Williams, SR,
Betts, TR, Gottschalg, R, Beyer, HG, Guerin, DMA, Borg, NVD, Burgers, AR, Huld, T, Muller, B, Reise, C, Kurnik, J, Topic, M, Zdanowicz, T, Fabero, F (2010) Results Of The 3rd Modelling Round Robin Within The European Project "Performance" - Comparison Of Module Energy Rating Methods. In
25th European Photovoltaic Solar Energy Conference and Exhibition/ 5th World Conference on Photovoltaic Energy Conversion, Valencia, pp.4333-4338, ISBN: 3-936338-26-4.
Mohring, HD, Stellbogen, D, Jagomagi, A, Mottus, E,
Betts, TR, Gottschalg, R, Zdanowicz, T, Prorok, M, Friesen, G, Domine, D, Guerin, DMA, Fabero, F, Faiman, D, Herrmann, W (2010) Energy Delivery Of PV Devices - Implementation Of Best Practices For Outdoor Characterisation And Testing. In
25th European Photovoltaic Solar Energy Conference and Exhibition/5th World Conference on Photovoltaic Energy Conversion, Valencia, pp.4322-4325, ISBN: 3-936338-26-4.
Krawczynski, M, Strobel, MB,
Betts, TR, Gottschalg, R (2010)
Spectral Influences on Estimations of Useful Irradiance for Different PV Technologies. In
6th Photovoltaic Science, Applications and Technology (PVSAT-6), Southampton, pp.107-110, ISBN: 0 904963 75 6.
Krawczynski, M, Strobel, MB, Hibberd, CJ,
Betts, TR, Gottschalg, R (2010)
Influence Of Spectral Irradiance Measurements On Accuracy Of Performance Ratio Estimation In Large Scale PV Systems. In
25th European Photovoltaic Solar Energy Conference and Exhibition/5th World Conference on Photovoltaic Energy Conversion, Valencia, pp.4710-4714, ISBN: 3-936338-26-4.
Zhu, J, Astawa, K,
Betts, TR, Gottschalg, R (2010) A modelling approach for long-term degradation of thin film silicon photovoltaic modules. In Hutchins, M and Pearsall, N (ed)
6th Photovoltaic Science Applications and Technology Conference (PVSAT-6), Southampton, UK, pp.111-114.
Qiu, YN, Clarke, AW,
Betts, TR, Gottschalg, R (2009)
The spectral variation effects on energy yield of optimized multi-junction solar cell. In
, Conference Record of the IEEE Photovoltaic Specialists Conference, pp.000897-000902, DOI:
10.1109/PVSC.2009.5411143.
Qiu, YN,
Betts, TR, Gottschalg, R (2009)
Electrical mismatch within single junction amorphous silicon and micromorph tandem thin film PV modules. In
, Conference Record of the IEEE Photovoltaic Specialists Conference, pp.000911-000916, DOI:
10.1109/PVSC.2009.5411142.
Bliss, M, Wendlandt, S,
Betts, TR, Gottschalg, R (2009)
Towards a High Power, All LED Solar Simulator Closely Matching Realistic Spectra. In
Proceedings of the 24th European Photovoltaic Solar Energy Conference (EU-PVSEC 24), Hamburg, Germany, pp.3321-3326, ISBN: 3-936338-25-6.
Bliss, M, Hibberd, CJ, Qiu, Y,
Betts, TR, Gottschalg, R (2009)
Automated Characterisation of Multi-Junction Thin Film Silicon Solar Cells. In
(EU-PVSEC 24), Proceedings of the 24th European Photovoltaic Solar Energy Conference, Hamburg, Germany, pp.2672-2678, ISBN: 3-936338-25-6.
Bliss, M,
Betts, TR, Gottschalg, R (2009)
An LED-based photovoltaic measurement system with variable spectrum and flash speed. In
17th International Photovoltaic Science and Engineering Conference, Solar Energy Materials and Solar Cells, pp.825-830, DOI:
10.1016/j.solmat.2008.09.056.
Bliss, M,
Betts, TR, Gottschalg, R (2009)
Towards an Accurate and Automated Characterisation of Multi-Junction Solar Cells. In Hutchins, M and Pearsall, N (ed)
(PVSAT5), 5th Photovoltaic Science Applications and Technology Conference Proceedings, Wrexham, UK, pp.43-46, ISBN: 0904963748.
Strobel, M,
Betts, TR, Gottschalg, R (2009) Performance of High-efficiency PV in Low Clearness Conditions. In Hutchins, M and Pearsall, N (ed)
Proceedings of Photovoltaic Science, Applications and Technology Conference, Wrexham, UK, pp.231-234, ISBN: 0904963748.
Strobel, M,
Betts, TR, Friesen, G, Beyer, HG, Gottschalg, R (2009) Uncertainty in photovoltaic performance parameters- dependence on location and material. In
, Solar Energy Materials and Solar Cells, pp.1124-1128.
Jagonagi, A, Mottus, E, Stellbogen, D, Mohring, HD,
Betts, TR, Gottschalg, R, Zdanowicz, T, Kolodenny, W, Prorok, M, Friesen, G, Pola, I, Domine, D, Guerin, DMA, Fabero, F, Faiman, D, Herrmann, W (2009) European Network Of PV Outdoor Testing - Steps Towards Harmonized Procedures. In
24th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg, pp.3432-3438, ISBN: 3-936338-25-6.
Qiu, Y, Strobel, M,
Betts, TR, Gottschalg, R, Beyer, HG (2009) Uncertainties In The Energy Yield Prediction Of PV Cell And Modules. In
24th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg, pp.3706-3709, ISBN: 3-936338-25-6.
Strobel, MB, Zinsser, B, Makrides, G, Norton, M,
Betts, TR, Georghiou, GE, Schubert, M, Gottschalg, R (2009) Energy Yield Forecasting For High-Efficiency PV Systems In Three Locations Using Artificial Neural Networks. In
24th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg, pp.3409-3412, ISBN: 3-936338-25-6.
Betts, TR, Williams, SR, Gottschalg, R (2009) Outdoor Characterisation Of PV Modules For Energy Rating. In
24th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg, pp.3471-3474, ISBN: 3-936338-25-6.
Astawa, K,
Betts, TR, Gottschalg, R (2009) Mapping The Performance of PV Modules Of Different Types. In
24th European Photovoltaic Solar Energy Conference and Exhibition, Hamburg, pp.3184-3188, ISBN: 3-936338-25-6.
Astawa, K,
Betts, TR, Gottschalg, R (2009) Long Term Performance Variation Of Amorphous Silicon Solar Cells Due To Different Operating Temperatures. In
24th European Photovoltaic Solar Energy Confeence and Exhibition, Hamburg, pp.2731-2734, ISBN: 3-936338-25-6.
Zhu, J, Qiu, Y,
Betts, TR, Gottschalg, R (2009)
Outlier Identification In Outdoor Measurement Data - Effects Of Different Strategies On The Performance Descriptors Of Photovoltaic Modules. In
34th IEEE Photovoltaic Specialists Conference, Philadelphia, not known, ISBN: 978-1-4244-2950-9.
Qiu, YN, Clarke, AW,
Betts, TR, Gottschalg, R (2009)
THE SPECTRAL VARIATION EFFECTS ON ENERGY YIELD OF OPTIMIZED MULTI-JUNCTION SOLAR CELL. In
34th IEEE Photovoltaic Specialists Conference, 2009 34TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, VOLS 1-3, Philadelphia, PA, pp.175-180, ISBN: 978-1-4244-2949-3.
Qiu, YN,
Betts, TR, Gottschalg, R (2009)
ELECTRICAL MISMATCH WITHIN SINGLE JUNCTION AMORPHOUS SILICON AND MICROMORPH TANDEM THIN FILM PV MODULES. In
34th IEEE Photovoltaic Specialists Conference, 2009 34TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, VOLS 1-3, Philadelphia, PA, pp.1655-1660, ISBN: 978-1-4244-2949-3.
Zhu, J, Qiu, Y,
Betts, TR, Gottschalg, R (2009) Effects of different data collection strategies on outdoor performance measurements and degradation. In WIP- Renewable Energies, (ed)
24th European Photovoltaic Solar Energy Conference, Hamburg, Germany, pp.3439-3445.
Zhu, J,
Betts, TR, Gottschalg, R (2009) Outlier identification in outdoor measurement data - Effects of different strategies on the performance descriptors of photovoltaic modules. In Hutchins, M and Pearsall, N (ed)
5th Photovoltaic Science Applications and Technology Conference (PVSAT-5), Wrexham, UK, pp.223-226.
Bliss, M,
Betts, TR, Gottschalg, R (2008)
Advantages in using LEDS as the main light source in solar simulators for measuring PV device characteristics. In Dhere, NG (ed)
SPIE Optics & Photonics 2008, Reliability of Photovoltaic Cells, Modules, Components and Systems, San Diego, CA, USA,ISBN: 9780819472687.
Vorasayan, P,
Betts, TR, Gottschalg, R, Tiwari, AN (2008)
Accelerated Testing of Performance of Thin Film Module. In Hutchins, M and Pearsal, N (ed)
Proceedings of the 4th Photovoltaic Science, Applications and Technology Conference (PVSAT4), Bath, UK, pp.211-214.
Balouktsis, L, Zhu, J, Brundlinger, R,
Betts, TR, Gottschalg, R (2008)
Optimised Inverter Sizing in the UK. In Hutchins, M and Pearsal, N (ed)
Proceedings of the 4th Photovoltaic Science Applications and Technology, Bath, UK, pp.43-46.
Betts, TR, Parker, MJ, Gottschalg, R (2008) Optimisation of Pulsed Solar Simulators for Multi-technology PV Device Testing. In Hutchins, M and Pearsall, N (ed)
Proceedings of the 4th Photovoltaic Science, Applications and Technology Conference, Bath, UK, pp.35-38.
Astawa, K,
Betts, TR, Gottschalg, R (2008) Effect of Operating Condition on Degradation of Amorphous Silicon Solar Modules. In Hutchins, M and Pearsall, N (ed)
Proceedings of the 4th Photovoltaic Science, Applications and Technology Conference, Bath, UK, pp.219-222.
Bliss, M,
Betts, TR, Gottschalg, R (2008)
Initial Solar Cell Characterisation Test and Comparison with A LED-Based Solar Simulator with Variable Flash Speed and Spectrum. In Hutchins, M and Pearsal, N (ed)
Proceedings of the 4th Photovoltaic Science Applications and Technology Conference, venue not known, pp.215-218.
Roy, J,
Betts, TR, Gottschalg, R (2008)
Evaluation of Proposed Photovoltaic Energy Rating Standard: Validation Against Outdoor Measurements. In Hutchins, M and Pearsall, N (ed)
Proceedings of the 4th Photovoltaic Science Application and Technology Conference, Bath, UK, pp.223-226.
Zhu, J, Bruendlinger, R,
Betts, TR, Gottschalg, R (2008)
EFFECT OF MODULE DEGRADATION ON INVERTER SIZING. In
33rd IEEE Photovoltaic Specialists Conference, PVSC: 2008 33RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, VOLS 1-4, San Diego, CA, pp.2110-+, ISBN: 978-1-4244-1640-0.
Betts, TR, Roy, J, Gottschalg, R, Mau, S, Zamini, S, Kenny, RP, Mullejans, H, Friesen, G, Dittmann, S, Beyer, HG, Jagomagi, A (2008)
Validation of proposed photovoltaic energy rating standard and sensitivity. In
Proceedings of the 23rd European Photovoltaic Solar Energy Conference, Valencia, Spain, pp.-.
Zhu, J,
Betts, TR, Gottschalg, R (2008) Accuracy assessment of models estimating total irradiance on inclined planes in Loughborough. In Hutchins, M and Pearsall, N (ed)
4th Photovoltaic Science, Applications and Technology Conference (PVSAT-4), Bath, UK, pp.207-210.
Zhu, J, Roy, J, Bründlinger, R, Guérin de Montgareuil, A, Mathieu, D, Mühlberger, T,
Betts, TR, Gottschalg, R (2008) Effect of timing and voltage dependency on inverter sizing. In WIP- Renewable Energies, (ed)
23rd European Photovoltaic Solar Energy Conference (EUPVSEC-23), Valencia, Spain, pp.2758-2764.
Vorasayan, P,
Betts, TR, Gottschalg, R, Tiwari, AN (2007)
Multi-Laser LBIC System for Thin Film PV Module Characterisation. In Yamaguchi, M (ed)
Proceedings of the 17th International Photovoltaic Science and Engineering Conference (PVSEC 17), Fukuoka, Japan, pp.993-994.
Harvey, K,
Betts, TR, Gottschalg, R (2007) Evaluation of Curve Translation Procedures for Current Voltage Characteristics of Photovoltaic Devices. In Yamaguchi, M (ed)
Proceedings of the 17th International Photovoltaic Science & Engineering Conference, Fukuoka, Japan, pp.999-1000.
Mau, S, Zamini, S, Bergmair, B, Ruppert, E, Williams, SR, Roy, J,
Betts, TR, Gottschalg, R, Mullejans, H (2007) Quantifying Environmental Effects for Different Device Technologies Based on Proposed Energy Rating Standard. In Willeke, G, Ossenbrink, H, Helm, P (ed)
Proceedings of the 22nd European Photovoltaic Solar Energy Conference, Milan, Italy, pp.2664-2668, ISBN: 3936338221.
Herrmann, W, Mau, S, Fabero, F,
Betts, TR, van der Borg, N, Kiefer, K, Friesen, G, Zaaiman, W (2007) Advanced Intercomparison Testing of PV Modules in European Test Laboratories. In Willeke, G, Ossenbrink, H, Helm, P (ed)
Proceedings of the 22nd European Photovoltaic Solar Energy Conference, Italy, pp.2506-2510, ISBN: 3936338221.
Gottschalg, R,
Betts, TR, Hohl Ebinger, J, Herrmann, W, Mullejans, H (2007) Effect of Spectral Mismatch on Power Rating Measurements - A Comparison of Indoor and Outdoor Measurements for Single and Multi-Junction Devices. In Willeke, G, Ossenbrink, H, Helm, P (ed)
Proceedings of the 22nd European Photovoltaic Solar Energy Conference1, Italy, pp.2621-2624, ISBN: 3936338221.
Gottschalg, R,
Betts, TR, Infield, DG, Kolodenny, W, Prorok, M, Zdanowicz, T, van der Borg, N, de Moor, H, Friesen, G, Herrmann, W, Hohl Ebinger, J, Diaz Berrade, J, Moracho, J, Cueli, AB, Lagunas, AR (2007) Variability of Electrical Parameters Determined by Using Different Solar Simulation Systems for Different PV Module Technologies. In Poortmans, J, Ossenbrink, H, Dunlop, E, Helm, P (ed)
Proceedings of the 21st European Photovoltaic Solar Energy Conference, Dresden, Germany, pp.2524-2527, ISBN: 3936338205.
Betts, TR, Gottschalg, R, Infield, DG, Kolodenny, W, Prorok, M, Zdanowicz, T, van, DBN, de, MH, Friesen, G, Guerin, DMA, Stellbogen, D, Herrmann, W (2007) Round Robin Comparison of European Outdoor Measurement Systems. In Poortmans, J, Ossenbrink, H, Dunlop, E, Helm, P (ed)
Proceedings of the 21st European Photovoltaic Solar Energy Conference, Dresden, Germany, pp.2447-2451, ISBN: 3936338205.
Astawa, K,
Betts, TR, Gottschalg, R, Infield, DG (2007) Temperature Coefficients of Amorphous Silicon Photovoltaic Modules. In Hynes, K, Pearsall, N, Hutchins, M (ed)
Proceedings of the 3rd Photovoltaic Science, Applications and Technology Conference, Durham, UK, pp.109-112.
Vorasayan, P,
Betts, TR, Gottschalg, R, Tiwari, AN (2007)
Characterisation of a LBIC System by Scanning of Silicon Solar Cells and Modules. In Hynes, K, Pearsal, N, Hutchins, M (ed)
Proceedings of the 3rd Photovoltaic Science, Application and Technology Conference, Durham, UK, pp.113-116.
Williams, SR, Strobel, M,
Betts, TR, Gottschalg, R, Infield, DG (2006) Accuracy of European energy modelling approaches. In Munich, WIP (ed)
21st European Photovoltaic Solar Energy Conference, Dresden, Germany, not known, ISBN: 3936338205.
Vorasayan, P,
Betts, TR, Gottschalg, R, Tiwari, AN (2006)
Structural Analysis of Thin Film Silicon PV Modules by Means of Large Area Laser Beam Induced Current Measurements. In
21st European Photovoltaic Solar Energy Conference, Dresden, Germany, pp.2406-2409.
Vorasayan, P,
Betts, TR, Gottschalg, R, Infield, DG (2006)
Long-Term Performance of Amorphous Photovoltaic Modules. In
Proceedings of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conference (WCPEC4), Waikoloa, HI, USA, pp.2129-2132, ISBN: 1424400163.
Betts, TR, Zdanowicz, T, Prorok, M, Kolodenny, W, de Moor, H, van der Borg, N, Stellbogen, D, Hohl Ebinger, J, Warta, W, Friesen, G, Chianese, D, Montgareuil, AG, Herrmann, W, Berrade, JD, Moracho, J, Cueli, AB, Lagunas, AR, Gottschalg, R (2006)
Photovoltaic Performance Measurements in Europe: PV-Catapult Round Robin Tests. In
Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, Waikoloa, USA, pp.2238-2241, ISBN: 1-4244-0016-3.
Williams, SR,
Betts, TR, Gottschalg, R, Infield, DG, de Moor, H, van der Borg, N, Burgers, AR, Friesen, G, Chianese, D, de Montgareuil, AG, Zdanowic, T, Stellbogen, D, Herrmann, W (2006)
Accuracy of energy prediction methodologies. In
4th World Conference on Photovoltaic Energy Conversion, CONFERENCE RECORD OF THE 2006 IEEE 4TH WORLD CONFERENCE ON PHOTOVOLTAIC ENERGY CONVERSION, VOLS 1 AND 2, Waikoloa, HI, pp.2206-+, ISBN: 1-4244-0016-3.
Vorasayan, P, Bliss, M,
Betts, TR, Gottschalg, R, Tiwari, AN (2006) Large area LBIC measurement system for thin film photovoltaic modules. In
Eurosun 2006, Eurosun 2006 Conference Proceedings, Glasgow, Scotland.
Betts, TR, Bliss, M, Gottschalg, R, Infield, DG (2005)
Analysis of a Flexible Measurement System for Outdoor DC Performance Testing of Photovoltaic Modules. In Qinghao, Y (ed)
Proceedings of the 15th International Photovoltaic Science & Engineering Conference, Shanghai, China, pp.722-723, ISBN: 7532382257.
Betts, TR, Bliss, M, Gottschalg, R, Infield, DG (2005)
Consideration of Error Sources for Outdoor Performance Testing of Photovoltaic Modules. In
Proceedings of the 20th European Photovoltaic Solar Energy Conference, Barcelona, pp.2127-2130, ISBN: 3936338191.
Andre, S,
Betts, TR, Gottschalg, R, Infield, DG (2005) Optimising Layer Thickness of Multi-Junction Silicon Devices for Energy Production. In
Proceedings of the 20th European Photovoltaic Solar Energy Conference, Barcelona, pp.1623-1626, ISBN: 3936338191.
Williams, SR,
Betts, TR, Gottschalg, R, Infield, DG, van, DBNJCM, Burgers, AR, de, MH, Warta, W, Friesen, G, Chianese, D, Guerin, DMA, Zdanowicz, T, Stellbogen, D, Herrmann, W, Pietruzko, S, Krustok, J, Dunlop, E (2005) Evaluating the State of the Art of Photovoltaic Performance Modelling in Europe. In
Proceedings of the 20th European Photovoltaic Solar Energy Conference, Barcelona, pp.1937-1941, ISBN: 3936338191.
Gottschalg, R,
Betts, TR, Infield, DG (2005) Comparison of Performance of Different Amorphous Silicon Modules After Thirty Months of Operation. In Gottschalg, R, Pearsall, N, Buckle, C, Hutchins, MG (ed)
2nd Photovoltaic Science, Applications and Technology Conference, Proceedings of the 2nd Photovoltaic Science, Applications and Technology Conference (PVSAT-2), ughboroug UK, pp.25-32, ISBN: 0904963713.
Betts, TR, Gottschalg, R, Infield, DG (2005) Measured Spectral Effects on Photovoltaic Module Performance. In Gottschalg, R, Pearsall, N, Buckle, C, Hutchins, MG (ed)
2nd Photovoltaic Science, Applications and Technology Conference, Proceedings of the 2nd Photovoltaic Science, Applications and Technology Conference, Loughborough, UK, pp.41-48, ISBN: 0904963713.
Andre, S,
Betts, TR, Gottschalg, R (2005) Optimising Layer Thickness of Multi-Junction Silicon Devices for Energy Production in a Maritime Climate. In Gottschalg, R, Pearsall, N, Buckle, C, Hutchins, MG (ed)
2nd Photovoltaic Science, Applications and Technology Conference, Proceedings of the 2nd Photovoltaic Science, Applications and Technology Conference (PVSAT-2), Loughborough UK, pp.97-105, ISBN: 0904963713.
Astawa, KS,
Betts, TR, Gottschalg, R, Infield, DG (2005) Effect of Operating Temperature on the Performance of Amorphous Silicon Photovoltaic Modules. In Gottschalg, R, Pearsall, N, Buckle, C, Hutchins, MG (ed)
2nd Photovoltaic Science, Applications and Technology Conference, Proceedings of the 2nd Photovoltaic Science, Applications and Technology Conference, Loughborough UK, pp.135-142, ISBN: 0904963713.
Williams, SR,
Betts, TR, Gottschalg, R, Infield, DG (2005) Site-Specific Condition (SSC): A Model for Real PV Modules Performance. In Gottschalg, R, Pearsall, N, Buckle, C, Hutchins, MG (ed)
2nd Photovoltaic Science, Technology and Applications Conference, Proceedings of the 2nd Photovoltaic Science, Applications and Technology Conference, Loughborough UK, pp.127-134, ISBN: 0904963713.
Vorasayan, P,
Betts, TR, Gottschalg, R, Infield, DG, Tiwari, AN (2005) The Effect of Cell Thickness on Energy Production of Amorphous Silicon Solar Cells. In Gottschalg, R, Pearsall, N, Buckle, C, Hutchins, MG (ed)
Proceedings of the 2nd Photovoltaic Science, Application and Technology Conference, Loughborough, UK, pp.153-160, ISBN: 0904963713.
Gottschalg, R, del Cueto, JA,
Betts, TR, Infield, DG (2005)
Seasonal Performance of A-SI Single- and Multifunction Modules in Two Locations. In
Proceedings of the 31st IEEE Photovoltaic Specialists Conference, Orlando, USA, pp.1484-1487, ISBN: 0 7803 8707 4.
Williams, SR,
Betts, TR, Vorasayan, P, Gottschalg, R, Infield, DG (2005)
Actual PV Module Performance Including Spectral Losses in the UK. In
Proceedings of the 31st IEEE Photovoltaic Specialists Conference, Orlando, USA, pp.1607-1610, ISBN: 0 7803 8707 4.
Ekins Daukes, NJ,
Betts, TR, Kennoku, Y, Araki, K, Lee, HS, Gottschalg, R, Boreland, MB, Infield, DG, Yamaguchi, M (2005) Syracuse - A Multi-Junction Concentrator System Computer Model. In
Proceedings of the 31st IEEE Photovoltaic Specialist Conference, Orlando, USA, pp.651-654, ISBN: 0780387074.
Vorasayan, P,
Betts, TR, Gottschalg, R, Tiwari, AN (2005)
Energy Production of Single Junction Amorphous Silicon Modules with Varying i-Layer Thickness. In
Proceedings of the 15th Photovoltaic Science & Engineering Conference, Shanghai, not known.
Al Buflasa, H,
Betts, TR, Gottschalg, R, Infield, DG (2004) Modelling the Effect of Spectral Variations on the Performance of Amorphous Silicon Solar Cells. In
Proceedings of the 19th European Photovoltaic Solar Energy Conference, Paris, pp.1419-1422, ISBN: 3936338140.
Sauter, D,
Betts, TR, Williams, SR, Gottschalg, R, Infield, DG (2004) Performance of Amorphous Silicon Modules. In
Proceedings of the 19th European Photovoltaic Solar Energy Conference, Paris, pp.2518-2521, ISBN: 3936338140.
Williams, SR,
Betts, TR, Gottschalg, R, Infield, DG (2004) Modelling Real Annual PV Module Performance with Consideration to Spectral and Incidence Angle Effects. In
Proceedings of the 19th European Photovoltaic Solar Energy Conference, Paris, pp.2645-2647, ISBN: 3936338140.
Ekins Daukes, NJ, Kemmoku, Y, Araki, K,
Betts, TR, Gottschalg, R, Infield, DG, Yamaguchi, M (2004) The Design Specification for Syracuse: A Multi-Junction Concentrator System Computer Model. In Hoffmann, Bal, Ossenbrink, Palz, Helm, (ed)
Proceedings of the 19th European Photovoltaic Solar Energy Conference, Paris, pp.2466-2469, ISBN: 3936338140.
Betts, TR, Gottschalg, R, Infield, DG (2004) Spectral Irradiance Correction for PV System Yield Calculations. In Hoffman, Bal, Ossenbrink, Palz, Helm, (ed)
Proceedings of the 19th European Photovoltaic Solar Energy Conference, Paris, pp.2533-2536, ISBN: 3936338140.
Williams, SR,
Betts, TR, Helf, T, Gottschalg, R, Beyer, HG, Infield, DG (2003) Modelling Long-Term Module Performance Based on Realistic Reporting Conditions with Consideration to Spectral Effects. In
Proceedings of 3rd World Conference on Photovoltaic Energy Conversion, Osaka, May 2003, ? ISBN: 4 9901816 3 8.
Beyer, HG, Gottschalg, R,
Betts, TR, Infield, DG (2003) Modelling the Realistic Short Circuit Current and MPP Power of A-SI Single and Multijunction Devices. In
3rd World Conference on Photovoltaic Energy Conversion, Osaka, Japan, pp.CD ROM-CD ROM, ISBN: 4-9901816-3-8.
Betts, TR, Jardine, CN, Gottschalg, R, Infield, DG, Lane, K (2003) Impact of Spectral Effects on the Electrical Parameters of Multijunction Amorphous Silicon Cells. In
3rd World Conference on Photovoltaic Energy Conversion, Osaka, Japan, CD ROM, ISBN: 4-9901816-3-8.
Betts, TR, Gottschalg, R, Infield, DG (2003) ASPIRE: All-Sky Spectral Irradiance Modelling for Photovoltaic Applications. In
Proceedings of the Photovoltaic Science, Applications and Technology Conference, Loughborough UK, pp.36-41, ISBN: 0 904963 68 3.
Betts, TR, Jardine, CN, Gottschalg, R, Infield, DG, Lane, K (2003) Spectral Dependence of Amorphous Silicon Photovoltaic Device Performance. In
Proceedings of the Photovoltaic Science, Applications and Technology Conference, Loughborough UK, pp.127-132, ISBN: 0 904963 68 3.
Gottschalg, R,
Betts, TR, Infield, DG, Kearney, MJ (2003) Modelling the Performance of Amorphous Silicon Devices in the UK. In
Proceedings of the Photovoltaic Science, Applications and Technology Conference, Loughborough UK, pp.84-89, ISBN: 0 904963 68 3.
Betts, TR, Gottschalg, R, Infield, DG (2003)
ASPIRE - A Tool to Investigate Spectral Effects on PV Device Performance. In
Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion, Osaka, May 2003, ? ISBN: 4 9901816 3 8.
Sabry, M, Gottschalg, R,
Betts, TR, Shaltout, MAM, Hassan, AF, El Nicklawy, MM, Infield, DG (2002)
Optical Filtering of Solar Radiation to Increase Performance of Concentrator Systems. In
Proc. of the 29th IEEE Photovoltaic Specialists Conference, New Orleans, pp.1588-1591, ISBN: 0-7803-7471-1.
Gottschalg, R, Jardine, CN, Ruther, R,
Betts, TR, Conibeer, GJ, Close, J, Infield, DG, Kearney, MJ, Lam, KH, Lane, K, Pang, H, Tscharner, R (2002)
Performance of Amorphous Silicon Double Junction Photovoltaic Systems in Different Climatic Zones. In
Proc. of the 29th IEEE Photovoltaic Specialists Conference, New Orleans, pp.1699-1702, ISBN: 0-7803-7471-1.
Betts, TR, Gottschalg, R, Infield, DG (2002)
Modelling Spectral Irradiation Effects on Single and Multi-Junction Amorphous Silicon Photovoltaic Devices. In
Proc. of the 29th IEEE Photovoltaic Specialists Conference, New Orleans Louisiana, May 2002, pp.1242-1245, ISBN: 0 7803 7471 1.
Gottschalg, R,
Betts, TR, Infield, DG, Kearney, MJ (2002)
Experimental Investigation of Spectral Effects on Amorphous Silicon Solar Cells in Outdoor Operation. In
Proc. of the 29th IEEE Photovoltaic Specialists Conference, New Orleans, pp.1138-1141, ISBN: 0-7803-7471-1.
Gottschalg, R, Ruther, R,
Betts, TR, Infield, DG, Kearney, MJ (2001) Environmental Effects on the Performance of An Amorphous Silicon PV System. In
17th European Photovoltaic Solar Energy Conference, Munich, pp.2758-2761, ISBN: 3-936338-08-6.
Betts, TR, Gottschalg, R, Infield, DG (2001) Progress Towards Modelling Solar Spectral Radiation for Optimisation of Amorphous Silicon Photovoltaic Systems. In Eames, P, Norton, B, Griffiths, P (ed)
"Renewable Energy in Maritime Island Climates", Proceedings of Conference C76 of the Solar Energy Society, Belfast, pp.163-170, ISBN: 0 904963 667.
