Journal/ Conference Publications

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Year Publication TitleAuthorsLink
2026Using artificial soiling to rank anti-soiling coatings for arid climatesF Li, DC Miller, D Ashcraft, G TamizhmaniFind Paper
2026Evidence of Polarization‐Type Potential‐Induced Degradation (PID‐p) in the Field and Investigation of the Recovery Mechanism on Bifacial p‐PERC ModulesC Molto, DJ Colvin, R Smith, P Hacke, F Li, G Tamizhmani, J Oh, H Jahan, ...Find Paper
2026Artificial Soiling Replication of Field Losses on Commercial Photovoltaic ModulesF Li, DC Miller, S Tatapudi, G TamizhManiFind Paper
2026Electrochemical Modeling of PID Leakage Current of PV Modules: Steady‐State Current, Transient Current, and RC‐Equivalent CircuitGS TamizhMani, F Li, C Molto, H Seigneur, P Hacke, J OhFind Paper
2025Impact of Rear-Hanging String-Cable-Bundle Shading on Performance Parameters of Bifacial Photovoltaic ModulesD Smith, S Rand, P Hruby, B De Fresart, P Subzak, S Tatapudi, ...Find Paper
2025Height-Dependent Inter-Array Temperature Difference and Position-Dependent Intra-Array Temperature GradientA Kumar, N Kothandapani, S Tatapudi, S Bhoite, GS TamizhManiFind Paper
2025Temperature Difference and Gradience in PV Arrays: Impact of Array Height and Array LengthA Kumar, N Kothandapani, S Tatapudi, S Bhoite, GS TamizhManiFind Paper
2025Intra-hour solar irradiance forecasting using sky cameras for PV plantsA Alnajadah, C Bremer, S Butler, F Li, GS TamizhManiFind Paper
2025Comparing Outdoor to Indoor Performance for Bifacial Modules Affected by Polarization-Type Potential-Induced DegradationDJ Colvin, C Molto, RM Smith, M Matam, P Hacke, F Li, BA Thompson, ...Find Paper
2025PV Soiling Loss Analysis for Two Sites in North CarolinaB Gautam, V Leite, G Tamizhmani, J OhFind Paper
2025Activation Energy of PID-p Degradation for Bifacial p-PERC Silicon MinimodulesF Li, C Molto, H Seigneur, J Oh, GS TamizhManiFind Paper
2025Field Study of Passive-Active Snow Removal Technique for Photovoltaic SystemsH Ahu-Darkwah, D Svedberg, J Oh, G TamizhmaniFind Paper
2025Polarization-type Potential-induced Degradation of Bifacial p-PERC Solar Cells: Impact of Dark StorageH Jahan, J Oh, F Li, C Molto, D Colvin, G Tamizhmani, H SeigneurFind Paper
2025Field Testing of PID-p Susceptible Bifacial PERC Modules: Impact of Light, Voltage and Module HistoryC Molto, DJ Colvin, RM Smith, P Hacke, F Li, G TamizhMani, J Oh, ...Find Paper
2025Electrical Impedance Spectroscopy: A Complementary Approach Differentiating PID Mechanisms in PhotovoltaicsA El-Tayeb, F Li, A Kumar, G TamizhmaniFind Paper
2025Photovoltaic module leach testing: Database development and statistical analysisF Li, SR Tatapudi, SL Shaw, C Libby, B Bicer, GS TamizhManiFind Paper
2025Polarization-type potential-induced degradation in bifacial PERC modules in the fieldP Hacke, C Molto, D Colvin, R Smith, FI Mahmood, F Li, J Oh, ...Find Paper
2025Autonomous polarimetric imaging for photovoltaic module inspection and methods thereofG Tamizhmani, Y YaoFind Paper
2025Soiling, cleaning, and abrasion: The results of the 5-year photovoltaic glass coating field studyJ Bomber, A Einhorn, C Engtrakul, C Lanaghan, J Linger, L Micheli, ...Find Paper
2024Close roof-mounted system temperature estimation for compliance to IEC TS 63126MD Kempe, S Ovaitt, M Springer, M Brown, DC Jordan, W Sekulic, ...Find Paper
2024Electroluminescence and infrared imaging of fielded photovoltaic modules: A complementary analysis of series resistance-related defectsF Li, DJ Colvin, VSP Buddha, KO Davis, G TamizhmaniFind Paper
2024Soiling, Cleaning, and Abrasion: The Results of the Five-Year Photovoltaic Glass Coating Field Study [Slides]J Bomber, A Einhorn, C Engtrakul, C Lanaghan, J Linger, L Micheli, ...Find Paper
2024Field study of nighttime leakage currents in bifacial pv modules: correlation with atmospheric electric field dataC Molto, R Smith, DJ Colvin, P Hacke, C DiRubio, M Gardeski, F Li, J Oh, ...Find Paper
2024Artificial Replication of Field Soiling Losses on PV ModulesF Li, DC Miller, GS TamizhManiFind Paper
2024Lead Content Estimation in Silicon PV ModulesF Li, S Shaw, C Libby, B Bicer, G TamizhManiFind Paper
2024Thermal and Performance Analysis of CIGS Modules for Building-Applied PV SystemsH Jahan, J Oh, A Sanghvi, A Bednarzhevskiy, L Liu, A Raj, ...Find Paper
2024A review of toxicity assessment procedures of solar photovoltaic modulesF Li, S Shaw, C Libby, N Preciado, B Bicer, G TamizhmaniFind Paper
2024Evaluation of bifacial module technologies with combined‐accelerated stress testingP Hacke, A Kumar, K Terwilliger, P Ndione, S Spataru, A Pavgi, ...Find Paper
2023Susceptibility to polarization type potential induced degradation in commercial bifacial p‐PERC PV modulesF Mahmood, F Li, P Hacke, C Molto, D Colvin, H Seigneur, G TamizhManiFind Paper
2023Examining Light-Induced Degradation with Combined-Accelerated Stress TestingP Hacke, A Kumar, K Terwilliger, P Ndione, S Spataru, A Pavgi, ...Find Paper
2023Reliability evaluation of DC power optimizers for photovoltaic systems: Accelerated testing at high temperatures with fixed and cyclic power stressesM Afridi, S Tatapudi, J Flicker, D Srinivasan, G TamizhmaniFind Paper
2023Reliability of microinverters for photovoltaic systems: High-temperature accelerated testing with fixed and cyclic power stressesM Afridi, S Tatapudi, J Flicker, D Srinivasan, G TamizhmaniFind Paper
2023Comparative analysis of hotspot stress endurance in pristine and thermal cycled prestressed glass–glass photovoltaic modulesM Afridi, A Kumar, F Mahmood, GS TamizhManiFind Paper
2023Hotspot endurance of pristine and thermal cycled glass-backsheet photovoltaic modulesM Afridi, A Kumar, F ibne Mahmood, GS TamizhManiFind Paper
2023Potential Induced Degradation Evaluation of Damp Heat Stressed PV ModulesFI Mahmood, A Kumar, M Afridi, GS TamizhManiFind Paper
2023A study of Cell Cracks Formation During Freight Shipping: Monitoring Shock and Temperature in Real-TimeC Molto, DJ Colvin, F ibne Mahmood, F Li, R Smith, G TamizhMani, ...Find Paper
2023Polarization type potential induced degradation under positive bias in a commercial PERC moduleF ibne Mahmood, F Li, P Hacke, C Molto, H Siegneur, GS TamizhManiFind Paper
2023Voltage mapping and local defects identification in solar cells using non-contact methodHA Raza, G TamizhManiFind Paper
2023Review of potential‐induced degradation in bifacial photovoltaic modulesC Molto, J Oh, FI Mahmood, M Li, P Hacke, F Li, R Smith, D Colvin, ...Find Paper
2023Potential induced degradation in c-Si glass-glass modules after extended damp heat stressF ibne Mahmood, A Kumar, M Afridi, G TamizhManiFind Paper
2023Application of non-contact electrostatic voltmeter to identify underperforming modules in grid-connected photovoltaic systemsHA Raza, G TamizhManiFind Paper
2023Use of non-contact voltmeter to quantify potential induced degradation in CdTe modulesHA Raza, FI Mahmood, G TamizhManiFind Paper
2023Impact of different backsheets and encapsulant types on potential induced degradation (PID) of silicon PV modulesF ibne Mahmood, G TamizhManiFind Paper
2023Degradation of monocrystalline silicon photovoltaic modules from a 10-year-old rooftop system in FloridaDJ Colvin, N Iqbal, JH Yerger, F Li, A Sinha, G Vicnansky, G Brummer, ...Find Paper
2023Hotspot testing of glass/backsheet and glass/glass PV modules pre-stressed in extended thermal cyclingM Afridi, A Kumar, F ibne Mahmood, G TamizhmaniFind Paper
2022Reliability Evaluation of Bifacial and Monofacial Glass/Glass Modules with EVA and non-EVA EncapsulantsGS TamizhMani, A Kumar, S Tatapudi, A Pavgi, P Hacke, H Seigneur, ...Find Paper
2022Impact of anti-soiling coating on potential induced degradation of silicon PV modulesFI Mahmood, GS TamizhManiFind Paper
2022PV module toxicity testing methods and results: a literature reviewF Li, S Shaw, C Libby, B Bicer, G TamizhManiFind Paper
2022Accelerated Durability Evaluation of Emerging Cell Interconnect TechnologiesF Li, DJ Colvin, KO Davis, A Gabor, GS TamizhManiFind Paper
2022Extended accelerated stress testing (east) of glass/glass, glass/backsheet and glass/transparent backsheet PV modulesA Kumar, A Pavgi, P Hacke, KR Choudhury, GS TamizhManiFind Paper
2022Mapping of Local Defects and Voltages in Solar Cells using Non-Contact Electrostatic Voltmeter MethodHA Raza, G TamizhManiFind Paper
2022Multiscale characterization of photovoltaic modules—Case studies of contact and interconnect degradationN Iqbal, DJ Colvin, AJ Curran, F Li, JP Ganesan, DB Sulas-Kern, ...Find Paper
2021Dropout and pruned neural networks for fault classification in photovoltaic arraysS Rao, G Muniraju, C Tepedelenlioglu, D Srinivasan, G Tamizhmani, ...Find Paper
2021Accuracy challenges in non-contact module IV measurementsH Field, G TamizhManiFind Paper
2021Preliminary Evaluation of Aluminum Foil Compatibility with EVA and POE EncapsulantsF Li, SR Tatapudi, GS TamizhManiFind Paper
2021Sampling Methods for Toxicity Testing of PV Modules for End-of-Life DecisionsGS TamizhMani, S Shaw, C Libby, P Sinha, T Curtis, S Tatapudi, B BicerFind Paper
2021Interrelation between encapsulant browning and metallization degradation: Experiments and simulationF Li, A Gopakumar, SR Tatapudi, KO Davis, GS TamizhManiFind Paper
2021Reliability and Manufacturing Demonstrations of a New Photovoltaic Module Architecture and Streamlined Approach to EncpasulationS Ellis, L Maple, T Shimpi, A Pavgi, G Tamizhmani, W Sampth, K BarthFind Paper
2021Simultaneous non-contact IV (NCIV) measurements of photovoltaic substrings and modules in a stringG TamizhMani, H Field, M Moorthy, A Patankar, S MuraliFind Paper
2021Correlation of UV fluorescence images with performance loss of field-retrieved photovoltaic modulesF Li, VSP Buddha, EJ Schneller, N Iqbal, DJ Colvin, KO Davis, ...Find Paper
2021Design and development of outdoor daylight ultraviolet fluorescence imaging setup: an inexpensive tool to detect degradationS Ilyas, M Noman, F Samad, B Mahnoor, S Tatapudi, FU Zafar, ...Find Paper
2021Thermally conductive backsheets (TCB) of PV modules: positive impacts on performance, lifetime and LCOEA Pavgi, J Oh, GS TamizhManiFind Paper
2021Field Accelerated Stress Testing (FAST): Forecasting Plant-specific Failure Modes and Degradation RatesGS TamizhMani, A KumarFind Paper
2021Reliability and Power Degradation Rates of PERC Modules Using Differentiated Packaging Strategies and Characterization ToolsRH French, BD Huey, A Longacre, M Martin, T Moran, OV Kolosov, ...Find Paper
2021Non-contact Current-Voltage (IV) Tracer for PhotovoltaicsGS TamizhMani, H FieldFind Paper
2020The 2020 photovoltaic technologies roadmapGM Wilson, M Al-Jassim, WK Metzger, SW Glunz, P Verlinden, G Xiong, ...Find Paper
2020Activation energy for end-of-life solder bond degradation: Thermal cycling of field-aged PV modulesH Gopalakrishna, A Sinha, J Carpenter, S Niverty, N Chawla, D Jordan, ...Find Paper
2020Solar photovoltaic waterless soiling monitoring systems and methodsG Tamizhmani, S TatapudiFind Paper
2020Cell metallic contact resistance of field-retrieved PV modulesF Li, A Gopakumar, VSP Buddha, EJ Schneller, N Iqbal, KO Davis, ...Find Paper
2020Inexpensive Indoor Spot-cell and Spot-light Methods for Angle of Incidence Measurements of PV ModulesKA Amou, Z Hammond, V Javalkar, G TamizhmaniFind Paper
2020Reliability analysis of field-aged glass/glass PV modules: influence of different encapsulant typesPM Thorat, SP Waghmare, A Sinha, A Kumar, GS TamizhManiFind Paper
2020Performance and Reliability of Thermally Conductive Backsheets (TCB)A Pavgi, J Oh, S Tatapudi, GS TamizhManiFind Paper
2020Demonstration of non-lamination encapsulation techniques for thin film solar modulesS Ellis, L Maple, T Shimpi, G Tamizhmani, W Sampath, A Pavgi, KL BarthFind Paper
2020Transient weighted moving-average model of photovoltaic module back-surface temperatureM Prilliman, JS Stein, D Riley, G TamizhmaniFind Paper
2020Prediction of climate-specific degradation rate for photovoltaic encapsulant discolorationA Sinha, H Gopalakrishna, AB Subramaniyan, D Jain, J Oh, D Jordan, ...Find Paper
2020Field reliability of glass/glass modulesA Kumar, A Pavgi, S Tatapudi, GS TamizhMani, P Hacke, M Owen-Bellini, ...Find Paper
2020Field-aged glass/backsheet and glass/glass PV modules: encapsulant degradation comparisonAP Patel, A Sinha, G TamizhmaniFind Paper
2019The Effect of the Superhydrophobic Film on the Generation Efficiency of Photovoltaic Modules Affected by Salt-Containing Dust DepositionH Gopalakrishna, A Sinha, K Dolia, D Jordan, G TamizhmaniFind Paper
2019Damp heat induced degradation of silicon heterojunction solar cells with Cu-plated contactsJ Karas, A Sinha, VSP Buddha, F Li, F Moghadam, G TamizhMani, ...Find Paper
2019Nondestructive characterization and accelerated UV testing of browned field-aged PV modulesH Gopalakrishna, A Sinha, K Dolia, D Jordan, G TamizhmaniFind Paper
2019Thermally Conductive Backsheets (TCB) for Reduced Operating TemperaturesGS TamizhMani, A Pavgi, J Oh, G Kelly, M Bolen, B Paudyal, S CardosoFind Paper
2019Optimization of back reflectors for bifacial photovoltaic modulesPJ Martin, G TamizhmaniFind Paper
2019Solder bond degradation of fielded PV modules: Correlation between performance, series resistance and electroluminescence imagingA Sinha, VSP Buddha, EJ Schneller, DJ Colvin, KO Davis, ...Find Paper
2019Reduction of operating temperatures of PV modules using thermally conductive backsheets: site dependenceA Pavgi, J Oh, G Kelly, G TamizhmaniFind Paper
2019Solder bond degradation of fielded PV modules: Climate dependence of intermetallic compound growthA Sinha, VSP Buddha, EJ Schneller, KO Davis, GS TamizhManiFind Paper
2019Contact resistivity and sheet resistance measurements of cells extracted from field-aged modulesA Sinha, F Li, VSP Buddha, EJ Schneller, KO Davis, GS TamizhManiFind Paper
2019Effectiveness of Rain Cleaning on Artificially Soiled PV Modules With and Without Anti-soiling CoatingsT Curtis, V Sreenivash, L Simpson, G TamizhManiFind Paper
2019Assessing variability in toxicity testing of PV modulesGS TamizhMani, S Shaw, C Libby, A Patankar, B BicerFind Paper
2019Comparison of TPT and thermally conductive backsheets in one-cell modules: Weather and climate dependenceA Pavgi, J Oh, G Kelly, G TamizhmaniFind Paper
2019Activation energy for solder bond degradation: Thermal cycling of field-aged modules at multiple upper temperaturesH Gopalakrishna, A Sinha, D Jordan, G TamizhmaniFind Paper
2019Design Advancement of an Indoor Soil Deposition Chamber: A Road to StandardizationZ Hammond, T Curtis, L Simpson, G TamizhmaniFind Paper
2019Characterization of encapsulant degradation in accelerated UV stressed mini-modules with UV-cut and UV-pass EVAH Gopalakrishna, P Arularasu, K Dolia, A Sinha, G TamizhmaniFind Paper
2019Indoor soil deposition chamber: evaluating effectiveness of antisoiling coatingsP Ravi, M Muller, LJ Simpson, D Choudhary, S Mantha, S Subramanian, ...Find Paper
2018Risk priority number for PV module defects: influence of climatic conditionS Tatapudi, P Sundarajan, C Libby, J Kuitche, GS TamizhManiFind Paper
2018Outdoor performance of CIGS modules at multiple temperatures over three yearsA Qamar, R Akbar, A Sanghvi, A Bednarzhevskiy, L Liu, A Raj, S Tatapudi, ...Find Paper
2018Addressing potential-induced degradation of field-installed PV modules by reducing surface conductivityK Shahzad, MS Khalid, A Amin, K Israr, R Khan, J Oh, S Tatapudi, ...Find Paper
2018A novel climate-specific field accelerated testing of PV modulesS Tatapudi, J Kuitche, GS TamizhManiFind Paper
2018Durability evaluation of PV modules using image processing toolsJ Wu, E Chan, R Yadav, H Gopalakrishna, GS TamizhManiFind Paper
2018Acceleration factor for damp heat testing of PV modulesAB Subramaniyan, A Sinha, S Pore, H Gopalakrishna, R Pan, ...Find Paper
2018Correlation of qualification and accelerated testing with field degradationGM Tamizhmani, D Jordan, H Gopalakrishna, A Sinha, ...Find Paper
2018Quantification of environmental effects on PV module degradation: A physics-based data-driven modeling methodAB Subramaniyan, R Pan, J Kuitche, GS TamizhManiFind Paper
2018Reduction of PV module temperature using thermally conductive backsheetsJ Oh, B Rammohan, A Pavgi, S Tatapudi, G Tamizhmani, G Kelly, M BolenFind Paper
2018Reducing photovoltaic module temperature using improved backsheet materialsJ Oh, B Rammohan, A Pavgi, S Tatapudi, G Tamizhmani, G Kelly, M BolenFind Paper
2018Novel accelerated UV testing of field-aged modules: Correlating EL and UV fluorescence images with current dropH Gopalakrishna, A Sinha, J Oh, K Dolia, S Tatapudi, G TamizhmaniFind Paper
2018Determination of empirical coefficients and ΔT for Sandia thermal model: Dependence on backsheet typeJ Oh, A Pavgi, G TamizhmaniFind Paper
2018Evaluating PV module sample removal methods for TCLP testingG Tamizhmani, C Libby, S Shaw, R Krishnamurthy, J Leslie, R Yadav, ...Find Paper
2018Acceleration factor modeling for degradation rate prediction of photovoltaic encapsulant discolorationA Sinha, S Pore, A Balasubramaniyan, GS TamizhManiFind Paper
2018Activation energy determination for photovoltaic encapsulant discoloration by indoor accelerated UV testingA Sinha, D Kumar, M Kempe, D Jordan, GS TamizhManiFind Paper
2018Early detection of encapsulant discoloration by UV fluorescence imaging and yellowness index measurementsK Dolia, A Sinha, S Tatapudi, J Oh, GS TamizhManiFind Paper
2018Co-located Accelerated Testing of Module Level Power Electronics and Associated PV PanelsJ Flicker, O Lavrova, G TamizhmaniFind Paper
2018Design of Experimental Test Setup for Large-scale Reliability Evaluation of Module Level Power Electronics (MLPE)S Tatapudi, J Flicker, D Srinivasan, J Upadhyaya, K Selvarangan, ...Find Paper
2018Design and construction of controlled back reflectors for bifacial photovoltaic modulesD Bowersox, G TamizhmaniFind Paper
2018Design and operation of a waterless PV soiling monitoring stationT Curtis, S Tatapudi, GS TamizhManiFind Paper
2018A status review of photovoltaic power conversion equipment reliability, safety, and quality assurance protocolsP Hacke, S Lokanath, P Williams, A Vasan, P Sochor, GS TamizhMani, ...Find Paper
2018Prediction of acceleration factor for accelerated testing of photovoltaic modules installed around the worldAB Subramaniyan, R Pan, J Kuitche, G TamizhManiFind Paper
2018A comprehensive study of 18–19 years field aged modules for degradation rate determination along with defect detection and analysisS Ali, A Ali, S Saher, HS Agha, H bin Abdul Majeed, FI Mahmood, ...Find Paper
2018Series Resistance Increase in Field Degraded PV Modules in Different Climatic ConditionsG Tamizhmani, T Alford, D SrinivasanFind Paper
2018Temperature coefficient of power (Pmax) of field aged PV modules: impact on performance ratio and degradation rate determinationsF Mahmood, H Majeed, H Agha, S Ali, S Tatapudi, T Curtis, ...Find Paper
2017Mitigation of PID in commercial PV modules using current interruption methodB Bora, J Oh, S Tatapudi, OS Sastry, R Kumar, B Prasad, G TamizhmaniFind Paper
2017Field Inspection of PV modules: quantitative determination of performance loss due to cell cracks using EL imagesCAR Castañeda, S Chattopadhyay, J Oh, S Tatapudi, G TamizhMani, ...Find Paper
2017Field degradation and failures of aged crystalline silicon PV modules in MexicoDM Escobar, PA Sánchez-Pérez, RDLLS Magdaleno, JO Cruz, ...Find Paper
2017Degradation of solder bonds in field aged PV modules: Correlation with series resistance increaseA Tummala, J Oh, S Tatapudi, GS TamizhManiFind Paper
2017Quantification of PV module discoloration using visual image analysisS Chattopadhyay, CS Solanki, A Kottantharayil, KL Narasimhan, J Vasi, ...Find Paper
2017Climate-Specific Thermal Model Coefficients for c-Si and Thin-Film PV ModulesA Pavgi, J Kuitche, J Oh, GS TamizhManiFind Paper
2017Annual degradation rate and its linearity analysis using metered kWh dataC Raupp, GS TamizhManiFind Paper
2017Field Inspection of PV Modules: Quantification of EVA Browning Level Using an Image Processing ToolS Gudla, GS TamizhManiFind Paper
2017Thermal uniformity mapping of PV modules and plantsA Pavgi, J Oh, J Kuitche, S Tatapudi, GS TamizhManiFind Paper
2017NREL efforts to address soiling on PV modulesLJ Simpson, M Muller, M Deceglie, H Moutinho, C Perkins, CS Jiang, ...Find Paper
2017Controlliing potential-induced degradaton of photovoltaic modulesJ Oh, S Tatapudi, G Tamizhmani, S BowdenFind Paper
2017Further studies on the effect of SiNx refractive index and emitter sheet resistance on potential-induced degradationJ Oh, B Dauksher, S Bowden, G Tamizhmani, P Hacke, J D'AmicoFind Paper
2017Notice of Removal: Accelerated testing of module level power electronics for long-term reliabilityJ Flicker, G Tamizhmani, MK Moorthy, R Thiagarajan, R AyyanarFind Paper
2017Accelerated testing of module-level power electronics for long-term reliabilityJ Flicker, G Tamizhmani, MK Moorthy, R Thiagarajan, R AyyanarFind Paper
2016Surface disruption method with flexible glass to prevent potential-induced degradation of the shunting type in PV modulesJ Oh, GS TamizhMani, S Bowden, S GarnerFind Paper
2016Effect of spatial temperature uniformity on outdoor photovoltaic module performance characterizationN Umachandran, GS TamizhManiFind Paper
2016Degradation rate evaluation of multiple PV technologies from 59,000 modules representing 252,000 modules in four climatic regionsC Raupp, C Libby, S Tatapudi, D Srinivasan, J Kuitche, B Bicer, ...Find Paper
2016A novel technique for performing PID susceptibility screening during the solar cell fabrication processJ Oh, S Dahal, B Dauksher, S Bowden, G Tamizhmani, P HackeFind Paper
2016Defect and safety inspection of 6 PV technologies from 56,000 modules representing 257,000 modules in 4 climatic regionsS Tatapudi, C Libby, C Raupp, D Srinivasan, J Kuitche, B Bicer, ...Find Paper
2016Automation of risk priority number calculation of photovoltaic modulesMK Moorthy, GS TamizhManiFind Paper
2016Regional soiling stations for PV: Soling loss analysisG Tamizhmani, B King, A Venkatesan, C Deline, A Pavgi, S Tatapudi, ...Find Paper
2016Comparative study of 28 and 18 years field aged Siemens-Arco M55 modules in temperate and hot-dry climatesM Chicca, J Wohlgemuth, GS TamizhManiFind Paper
2016Multi angle laser light scattering evaluation of field exposed thermoplastic photovoltaic encapsulant materialsMD Kempe, DC Miller, JH Wohlgemuth, SR Kurtz, JM Moseley, DL Nobles, ...Find Paper
2015Climatological relevance to the soiling loss of photovoltaic modulesM Naeem, G TamizhmaniFind Paper
2015Study of soiling loss on photovoltaic modules with artificially deposited dust of different gravimetric densities and compositionsJJ John, S Warade, G Tamizhmani, A KottantharayilFind Paper
2015Field testing of thermoplastic encapsulants in high‐temperature installationsMD Kempe, DC Miller, JH Wohlgemuth, SR Kurtz, JM Moseley, QA Shah, ...Find Paper
2015Quantification and modeling of spectral and angular losses of naturally soiled PV modulesJJ John, V Rajasekar, S Boppana, S Chattopadhyay, A Kottantharayil, ...Find Paper
2015Potential-induced degradation (PID): Incomplete recovery of shunt resistance and quantum efficiency lossesJ Oh, S Bowden, GS TamizhManiFind Paper
2015Failure modes and effect analysis of module level power electronicsA Sastry, S Kulasekaran, J Flicker, R Ayyanar, GS TamizhMani, J Roy, ...Find Paper
2015Soiling and self-cleaning of PV modules under the weather conditions of two locations in Arizona and South-East IndiaW Herrmann, M Schweiger, G Tamizhmani, B Shisler, K CSFind Paper
2015Performance and reliability evaluation of concentrated photovoltaic (CPV) power plantsC Raupp, S Tatapudi, B Bicer, GS TamizhManiFind Paper
2015Statistical methods to determine dominant degradation modes of fielded PV modulesN Umachandran, J Kuitche, GS TamizhManiFind Paper
2015Angle of incidence effect on five soiled modules from five different PV technologiesV Rajasekar, S Boppana, GS TamizhManiFind Paper
2015Nondestructive techniques to determine degradation modes: Experimentation with 18 years old photovoltaic modulesM Chicca, GS TamizhManiFind Paper
2015Cleaning frequency optimization for soiled photovoltaic modulesM Naeem, G TamizhManiFind Paper
2015Regional soiling stations for PV: Design, calibration and installationB King, G TamizhMani, S Tatapudi, V Rajasekar, S BoppanaFind Paper
2015Working towards the development of a standardized artificial soiling methodS Boppana, V Rajasekar, GS TamizhManiFind Paper
2015Quantum efficiency loss after PID stress: Wavelength dependence on cell surface and cell edgeJ Oh, S Bowden, GS TamizhMani, P HackeFind Paper
2015Application of flexible glass to prevent PID in PV modulesJ Oh, GS TamizhMani, S Bowden, S GarnerFind Paper
2015Selection of best methods to calculate degradation rates of PV modulesS Shrestha, G TamizhManiFind Paper
2015Round-Robin Verification and Final Development of the IEC 62788-1-5 Encapsulation Size Change TestJ Wohlgemuth, J Bokria, X Gu, C Honeker, N Murua, N Nickel, K Sakurai, ...Find Paper
2015Standardization and reliability testing of module-level power electronics (MLPE)G TamizhManiFind Paper
2015Validated method for repeatable power measurement of CIGS modules exhibiting light-induced metastabilitiesMG Deceglie, TJ Silverman, K Emery, D Dirnberger, A Schmid, S Barkaszi, ...Find Paper
2014Interlaboratory study to determine repeatability of the damp-heat test method for potential-induced degradation and polarizationP Hacke, K Terwilliger, S Glick, G Tamizhmani, S Tatapudi, C Stark, ...Find Paper
2014Determination of dominant failure modes using FMECA on the field deployed c-Si modules under hot-dry desert climateSM Shrestha, JK Mallineni, KR Yedidi, B Knisely, S Tatapudi, J Kuitche, ...Find Paper
2014Angle of incidence effects on soiled PV modulesJ John, V Rajasekar, S Boppana, S Tatapudi, G TamizhmaniFind Paper
2014Regional influence on module design quality: Qualification testing failure rate results from six regional labsG TamizhMani, B Li, B Shisler, C Monokroussos, C Dreier, S Lim, ...Find Paper
2014Influence of soiling layer on quantum efficiency and spectral reflectance on crystalline silicon PV modulesJJ John, S Tatapudi, G TamizhmaniFind Paper
2014Non-intrusive cell quantum efficiency measurements of accelerated stress tested photovoltaic modulesB Knisely, J Kuitche, G TamizhMani, A Korostyshevsky, H FieldFind Paper
2014Soiling losses of utility-scale PV systems in hot-dry desert climates: Results from four 4–16 years old power plantsJ Mallineni, K Yedidi, S Shrestha, B Knisely, S Tatapudi, J Kuitche, ...Find Paper
2014Effect of tilt angle on soiling of photovoltaic modulesJ Cano, JJ John, S Tatapudi, GS TamizhManiFind Paper
2014A statistical analysis on the cell parameters responsible for power degradation of fielded PV modules in a hot-dry climateSV Janakeeraman, J Singh, J Kuitche, JK Mallineni, GS TamizhManiFind Paper
2014Evaluation of 12-year-old PV power plant in hot-dry desert climate: Potential use of field failure metrics for financial risk calculationJ Mallineni, B Knisely, K Yedidi, S Tatapudi, J Kuitche, G TamizhManiFind Paper
2014Degradation and failure modes of 26-year-old 200 kW power plant in a hot-dry desert climateK Olakonu, J Belmont, S Tatapudi, J Kuitche, G TamizhManiFind Paper
2014Tightening nameplate rating tolerance below 5%: Can it be rationally and objectively required in test standards?G TamizhMani, S Radhakrishnan, B ShislerFind Paper
2014Application of reverse bias recovery technique to address PID issue: Incompleteness of shunt resistance and quantum efficiency recoveryJ Oh, S Bowden, GS TamizhManiFind Paper
2014Degradation rate evaluation of 26-year-old 200 kW power plant in a hot-dry desert climateJ Belmont, K Olakonu, J Kuitche, G TamizhManiFind Paper
2014Scaling error of quantum efficiency measurements for heavily shunted cells in reliability researchJ Oh, GS TamizhMani, S BowdenFind Paper
2014Failure and degradation modes and rates of PV modules in a hot-dry climate: Results after 16 years of field exposureK Yedidi, S Tatapudi, J Mallineni, B Knisely, J Kutiche, G TamizhManiFind Paper
2014A Novel Method to Prevent Potential Induced Degradation (PID) of Photovoltaic Modules During Manufacturing or After Field InstallationS Bowden, G TamizhmaniFind Paper
2014Investigation of dominant failure mode (s) for field-aged crystalline silicon PV modules under desert climatic conditionsJM Kuitche, R Pan, GS TamizhManiFind Paper
2014Reliability Evaluation of PV Power Plants Input Data for Warranty, Bankability and Energy Estimation ModelsG TamizmaniFind Paper
2014Accelerated lifetime testing of photovoltaic modulesG TamizhMani, J KuitcheFind Paper
2013Degradation analysis of 1900 PV modules in a hot-dry climate: Results after 12 to 18 years of field exposureJ Singh, J Belmont, GS TamizhManiFind Paper
2013Power rating of photovoltaic modules per IEC 61853-1 standard using a new outdoor test methodMG Vemula, JJ John, J Kuitche, G TamizhmaniFind Paper
2013Potential induced degradation of pre-stressed photovoltaic modules: Influence of polarity, surface conductivity and temperatureF Ebneali, S Tatapudi, GS TamizhManiFind Paper
2013Validation of IEC 61853-2 standard (Draft): Angle of incidence effect on photovoltaic modulesB Knisely, SV Janakeeraman, J Kuitche, G TamizhManiFind Paper
2013Potential induced degradation of pre-stressed photovoltaic modules: Effect of glass surface conductivity disruptionS Tatapudi, F Ebneali, J Kuitche, G TamizhmaniFind Paper
2013Validation of draft international electrotechnical commission 61853-2 standard: Angle of incidence effect on photovoltaic modulesB Knisely, SV Janakeeraman, J Kuitche, G TamizhManiFind Paper
2013Failure and degradation modes of PV modules in a hot dry climate: results after 12 to 26 years of field exposureG Tamizh-Mani, J KuitcheFind Paper
2013Reliability Evaluation of Concentrator Photovoltaic Modules per IEC Qualification SpecificationsG TamizhmaniFind Paper
2012Statistical analysis of 10+ years field exposed c-Si modules performance degradationJM Kuitche, G TamizhMani, R PanFind Paper
2012Examination of a size-change test for photovoltaic encapsulation materialsDC Miller, X Gu, L Ji, G Kelly, N Nickel, P Norum, T Shioda, G Tamizhmani, ...Find Paper
2012Evaluation of creep in thermoplastic encapsulant materials deployed outdoorsMD Kempe, DC Miller, JH Wohlgemuth, SR Kurtz, JM Moseley, Q Shah, ...Find Paper
2012A field evaluation of the potential for creep in thermoplastic encapsulant materialsMD Kempe, DC Miller, JH Wohlgemuth, SR Kurtz, JM Moseley, Q Shah, ...Find Paper
2012Statistical analysis of commercial c-Si PV module photovoltaic efficiency distribution over 10-years periodJM Kuitche, V Sharma, J Oh, R Pan, G TamizhManiFind Paper
2012Failure rate analysis of module design qualification testing-IV: 1997–2005 vs. 2005–2007 vs. 2007–2009 vs. 2009–2011G TamizhMani, B Li, T Arends, W Shisler, A Voropayev, D Parker, ...Find Paper
2012Potential induced degradation (PID) study on accelerated stress tested PV modulesS Goranti, GS TamizhManiFind Paper
2012BAPV arrays: Side-by-side comparison with and without fan coolingS Chatterjee, GS TamizhManiFind Paper
2012Statistical analysis of back surface vs. cell temperatures of c-Si modules using measurement error modelsJM Kuitche, R Pan, G TamizhManiFind Paper
2012Testing Protocol for Module Encapsulant CreepMD Kempe, DC Miller, JH Wohlgemuth, SR Kurtz, JM Moseley, Q Shah, ...Find Paper
2012Nameplate, Datasheet and Sampling Requirements of Photovoltaic ModulesG TamizhMani, J Kuitche, A MikonowiczFind Paper
2012Long-term sequential testing (LST) of PV modulesG TamizhManiFind Paper
2011Evaluation of high‐temperature exposure of photovoltaic modulesS Kurtz, K Whitfield, G TamizhMani, M Koehl, D Miller, J Joyce, ...Find Paper
2011Use of melt flow rate test in reliability study of thermoplastic encapsulation materials in photovoltaic modulesJ Moseley, D Miller, QUAS Shah, K Sakurai, M Kempe, G Tamizhmani, ...Find Paper
2011Failure modes effects and criticality analysis (FMECA) approach to the crystalline silicon photovoltaic module reliability assessmentJM Kuitche, G Tamizh-Mani, R PanFind Paper
2011Performance degradation of grid-tied photovoltaic modules in a hot-dry climatic conditionA Suleske, J Singh, J Kuitche, G Tamizh-ManiFind Paper
2011Automatic performance matrix generation as per IEC 61853–1 standard using only monitored outdoor MPPT dataK Koka, GS TamizhManiFind Paper
2011Gap analysis towards a design qualification standard development for grid-connected photovoltaic invertersSBA Venkataramanan, R Ayyanar, G Maracas, G Tamizhmani, ...Find Paper
2011Transient response of cadmium telluride modules to light exposureC Deline, J Del Cueto, DS Albin, C Petersen, L Tyler, G TamizhManiFind Paper
2011BAPV array: Thermal modeling and cooling effect of exhaust fanJ Hrica, S Chatterjee, GS TamizhManiFind Paper
2011Photovoltaic module power rating per IEC 61853–1: A study under natural sunlightK Paghasian, GS TamizhManiFind Paper
2011BAPV modules with different air gaps: Effect of temperature on relative energy yield and lifetimeB Schams, GS TamizhManiFind Paper
2011Successful transfer of sandia national laboratories' outdoor test technology to tüv rheinland photovoltaic testing laboratoryJE Granata, WE Boyson, JA Kratochvil, B Li, V Abbaraju, GS TamizhMani, ...Find Paper
2011BAPV modules: Installed-NOCT and temperature coefficients after 1-year exposureJ Oh, GS TamizhManiFind Paper
2011Solar America Board for Codes and StandardsG TamizhMani, J Kuitche, A MikonowiczFind Paper
2011Photovoltaic module power rating per IEC 61853-1 standard: a study under natural sunlightG TamizhMani, K Paghasian, J Kuitche, MG Vemula, G SivasubramanianFind Paper
2011Degradation analysis of solar photovoltaic modules: Influence of environmental factorR Pan, J Kuitche, G TamizhmaniFind Paper
2011Failure modes effects and criticality analysisJM KUITCHE, G TAMIZHMANI, PAN RONGFind Paper
2010Temperatures of building applied photovoltaic (BAPV) modules: air gap effectsJ Oh, GS TamizhMani, E PalominoFind Paper
2010Test-to-failure of pv modules: Hotspot testingJK Mathew, J Kuitche, G TamizhManiFind Paper
2010Temperature testing and analysis of PV modules per ANSI/UL 1703 and IEC 61730 standardsJ Oh, GS TamizhManiFind Paper
2010Failure analysis of module design qualification testing-III: 1997–2005 vs. 2005–2007 vs. 2007–2009G TamizhMani, B Li, T Arends, J Kuitche, B Raghuraman, W Shisler, ...Find Paper
2010Outdoor energy ratings and spectral effects of photovoltaic modulesR Lad, J Wohlgemuth, GS TamizhManiFind Paper
2010Testing the reliability and safety of photovoltaic modules: failure rates and temperature effectsG TamizhManiFind Paper
2009Temperature of rooftop photovoltaic modules: air gap effectsBL Shrestha, EG Palomino, G TamizhManiFind Paper
2009Nominal operating cell temperature (NOCT) effects of module size, power, load and solar spectrumR Bharti, J Kuitche, G Tamizh-ManiFind Paper
2009Reliability of photovoltaic modules: An overviewJ Kuitche, R Pan, G TamizhmaniFind Paper
2008Photovoltaic testing and certification@ ASU photovoltaic testing laboratory (ASU-PTL)G Tamizh-ManiFind Paper
2008Photovoltaic performance models: an evaluation with actual field dataG TamizhMani, JP Ishioye, A Voropayev, Y KangFind Paper
2008Hot spot evaluation of photovoltaic modulesG TamizhMani, S SharmaFind Paper
2008Arizona Texas Consortium For Alternative And Renewable Energy TechnologiesL Munukutla, R Newman, ANM Kannan, S Petrovich, G TamizhmaniFind Paper
2008Performance test of amorphous silicon modules in different climates-year four: Progress in understanding exposure history stabilization effectsR Ruther, J Del Cueto, G Tamizh-Mani, AA Montenegro, S Rummel, ...Find Paper
2008Failure analysis of design qualification testing: 2007 vs. 2005G TamizhMani, B Li, T Arends, J Kuitche, B Raghuraman, W Shisler, ...Find Paper
2008Need for uniform photvoltaic module performance testing and ratingsGH Atmaram, GS TamizhMani, GG VentreFind Paper
2008Uninterruptible power suppliesJ Gonzales, G Tamizhmani, B Rogers, LJ JiFind Paper
2007ASTM international standards for photovoltaics the foundation of qualification standardsG TamizhmaniFind Paper
2007Nine (9)-year review of field performance of EVA-based encapsulantsRT Tucker, JM Kuitche, T Arends, G Tamizh-Mani, R HammondFind Paper
2006IEC and IEEE design qualifications: an analysis of test results acquired over nine yearsB Li, T Arends, J Kuitche, W Shisler, Y Kang, G TamizhManiFind Paper
2006Results from the second international module inter-comparisonS Rummel, A Anderberg, K Emery, D King, G TamizhMani, T Arends, ...Find Paper
2006An evaluation of 27+ years old photovoltaic modules operated in a hot-desert climatic conditionY Tang, B Raghuraman, J Kuitche, G TamizhMani, CE Backus, ...Find Paper
2006An overview of SMUD's outdoor photovoltaic test program at Arizona State UniversityB Raghuraman, V Lakshman, J Kuitche, W Shisler, G TamizhMani, ...Find Paper
2006Implementation and validation of Sandia outdoor photovoltaic test method and performance model at Arizona state universityB Li, D King, W Boyson, G TamizhManiFind Paper
2006High efficiency fuel cell based uninterruptible power supply for digital equipmentJ Gonzales, G TamizhmaniFind Paper
2006Flash Fusion Manufacturing Method for Proton Exchange MembranesG TamizhmaniFind Paper
2005Graduate education with industry relevanceL Munukutla, A McHenry, R Darveaux, G TamizhmaniFind Paper
2005Outdoor energy rating of photovoltaic modules: module temperature prediction and spectral mismatch analysisY Tang, G TamizhMani, L Ji, C OsterwaldFind Paper
2005Performance test of amorphous silicon modules in different climates-year three: higher minimum operating temperatures lead to higher performance levelsR Ruther, G Tamizh-Mani, J Del Cueto, J Adelstein, MM Dacoregio, ...Find Paper
2005Outdoor energy rating of photovoltaic modulesY Tang, G TamizhMani, L Ji, C OsterwaldFind Paper
2005Outdoor energy rating measurements of photovoltaic modulesY Tang, G TamizhMani, L Ji, C OsterwaldFind Paper
2005A Fuel Cell Based True Uninterruptible Power Supply (true UPS)B Rogers, G TamizhmaniFind Paper
2004A Multidisciplinary Course on Fuel Cells: Their Science and EngineeringG Tamizhmani, B Rogers, R SundararajanFind Paper
2004Fuel cell manufacturing: An introduction to opportunities and challengesA Post, B Rogers, S Danielson, G TamizhmaniFind Paper
2004Electroheological Design and Manufacturing Method for Proton Transport MembranesB Rogers, G TamizhmaniFind Paper
2003Centrifugal Design and Manufacturing Method for Fuel Cell Proton Transport MembranesB Rogers, G TamizhmaniFind Paper
2003Manufacturing Method for Bipolar Plates for Use in Fuel CellsB Rogers, G TamizhmaniFind Paper
2003Photovoltaic module thermal/wind performance: long-term monitoring and model development for energy ratingG TamizhMani, L Ji, Y Tang, L Petacci, C OsterwaldFind Paper
2003Performance test of amorphous silicon modules in different climates: higher minimum operating temperatures lead to higher performance levelsR Ruther, G Tamizh-Mani, J Del Cueto, J Adelstein, AA Montenegro, ...Find Paper
2003An Innovative Fuel Cell Theory, Testing and Manufacturing CourseB Rogers, G Tamizhmani, R Sundararajan, S DanielsonFind Paper
2003Qualification testing of concentrator pv modules: Approved standard, existing test facilities and preliminary test resultsG TamizhMani, L Ji, RL Hammond, B McConnell, D RoubideauxFind Paper
Conference2003An Innovative Fuel Cell Theory, Testing and Manufacturing CourseBrad Rogers, Govindasamy TamizhMani, Rajiswari Sundararajan, Scott DanielsonASME International Mechanical Engineering Congress and ExpositionFind Paper
Conference2003Photovoltaic module thermal/wind performance: long-term monitoring and model development for energy ratingGovindasamy TamizhMani, Liang Ji, Yingtang Tang, Luis Petacci, Carl OsterwaldNCPV and Solar Program Review Meeting Proceedings (Denver, CO)Find Paper
Conference2001Qualification testing of concentrator PV modules: Approved standard, existing test facilities and preliminary test resultsG TamizhMani, L Ji, RL Hammond, B McConnell, D RoubideauxNREL National Center for Photovoltaics (NCPV) Program Review MeetingFind Paper
Conference1999Update on the monitoring of the grid-connected photovoltaic system at Nunavut Arctic College, Iqaluit, Nunavut (Canada)D Thevenard, L Dignard-Bailey, S Martel, G TamizhManiSolar Energy Society of Canada (SESCI) ConferenceFind Paper
Journal1998A rapid half-cell technique for the pre-screening of polymer fuel cell catalystsG TamizhMani, JP Dodelet, D Guay, L Dignard-BaileyJournal of Electroanalytical ChemistryFind Paper
Conference1998Influence of low-light module performance on the energy production of Canadian grid-connected PV systemsG TamizhMani, L Dignard-Bailey, D Thevenard, RG HowellRenewable Energy Technologies in Cold Climates (Solar Energy Society of Canada)Find Paper
Journal1996Crystallite Size Effects of Carbon-Supported Platinum on Oxygen Reduction in Liquid AcidsG TamizhMani, JP Dodelet, D GuayJournal of The Electrochemical SocietyFind Paper
Journal1995Influence of Loading on the Activity and Stability of Heat-Treated Carbon-Supported Cobalt Phthalocyanine Electrocatalysts in Solid Polymer Electrolyte Fuel CellsG Lalande, G TamizhMani, R Cote, L Dignard-Bailey, ML Trudeau, R Schulz, D Guay, JP DodeletJournal of the Electrochemical SocietyFind Paper
Journal1995Physical, chemical and electrochemical characterization of heat-treated tetracarboxylic cobalt phthalocyanine adsorbed on carbon black as electrocatalyst for oxygen reduction in polymer electrolyte fuel cellsG Lalande, R Cote, G TamizhMani, D Guay, JP Dodelet, L Dignard-Bailey, LT Weng, Patrick BertrandElectrochimica ActaFind Paper
Journal1994Electrocatalytic activity of Nafion-impregnated pyrolyzed cobalt phthalocyanine: a correlative study between rotating disk and solid polymer electrolyte fuel-cell electrodesG TamizhMani, JP Dodelet, D Guay, G Lalande, GA CapuanoJournal of the Electrochemical SocietyFind Paper
Journal1994Improved Electrocatalytic Oxygen Reduction Performance of Platinum Ternary Alloy-Oxide in Solid-Polymer-Electrolyte Fuel CellsG TamizhMani, GA CapuanoJournal of the Electrochemical SocietyFind Paper
Journal1994Life Tests of Carbon-Supported Pt-Cr-Cu Electrocatalysts in Solid-Polymer Fuel CellsG TamizhMani, GA CapuanoJournal of the Electrochemical SocietyFind Paper
Conference1994Rotating disk electrode measurements on the electrocatalytic activity of heat-treated carbon supported cobalt phthalocyanine catalysts for oxygen reductionG Lalande, G TamizhMani, R Cote, L Dignard-Bailey, ML Trudeau, R Schulz, D Guay, JP DodeletElectrochemical Society ProceedingsFind Paper
Journal1991Photoelectrochemical characterization of thin films of perylenetetracarboxylic acid derivativesG TamizhMani, JP Dodelet, R Cote, D GravelChemistry of MaterialsFind Paper
Journal1991Physical characterization of a-Si thin films deposited by thermal decomposition of iodosilanesG TamizhMani, Michael Cocivera, T Oakley, Charles Fischer, Minoru FujimotoJournal of Physics D: Applied PhysicsFind Paper
Journal1990Photoelectrochemical properties of semiconducting cadmium mercury telluride thin films with bandgaps between 1.47 and 1.08 eVM Neumann-Spallart, G TamizhMani, C Levy-ClementJournal of The Electrochemical SocietyFind Paper
Journal1990Some physical properties of undoped amorphous silicon prepared by a new CVD process using iodosilanesG TamizhMani, Michael Cocivera, Richard T Oakley, Paul Del Bel BelluzChemistry of MaterialsFind Paper
Journal1989Physical properties of electrochemically deposited cadmium mercury telluride filmsM Neumann-Spallart, G TamizhMani, A Boutry-Forveille, C Levy-ClementThin Solid FilmsFind Paper
Journal1989Study of electrochemical and photoelectrochemical properties of nickel phosphide semiconductorsMaheshwar Sharon, G TamizhMani, Claude Levy-Clement, Jacques RiouxSolar CellsFind Paper
Journal1986Transition metal phosphide semiconductors for their possible use in photoelectrochemical cells and solar chargeable batteryMaheshwar Sharon, G TamizhManiJournal of Materials ScienceFind Paper