Daniel Riley

Research Engineer

Author profile picture

Research Engineer

driley@sandia.gov

Biography

Daniel Riley is a research engineer in the Photovoltaics (PV) and Materials Technology Program at Sandia National Laboratories. The scope of Daniel’s work includes PV modules and systems with focus in data acquisition, characterization, and modeling. Daniel has also developed skills for characterizing and modeling non-standard PV technologies such as concentrating photovoltaics (CPV) and AC modules. Daniel received a bachelor’s in electrical engineering from the University of Missouri–Rolla in 2006, and a master’s in electrical engineering from the Missouri University of Science and Technology in 2011. His university research emphasis in communications and computer intelligence has been applied in the PV field, resulting in a patent for machine learning applications for PV system prognostics and health.

Publications

  • Pierce, B.G., Braid, J.L., Stein, J., Augustyn, J., Riley, D., & Riley, D. (2022). Solar Transposition Modeling via Deep Neural Networks with Sky Images. IEEE Journal of Photovoltaics, 12(1), pp. 145-151. https://doi.org/10.1109/jphotov.2021.3120508 Publication ID: 76425
  • Coston, J., Robinson, C., King, B., Braid, J.L., Riley, D., Stein, J., & Stein, J. (2021). Effects of Solar Angle of Incidence on Intramodular Photovoltaic Irradiance Uniformity [Conference Paper]. Conference Record of the IEEE Photovoltaic Specialists Conference. https://doi.org/10.1109/PVSC43889.2021.9518595 Publication ID: 78824
  • Pierce, B.G., Braid, J.L., Stein, J., Augustyn, J., Riley, D., & Riley, D. (2021). Solar Transposition Modeling via Deep Neural Networks with Sky Images [Conference Presenation]. https://doi.org/10.2172/1877838 Publication ID: 78910
  • Pierce, B.G., Braid, J.L., Stein, J., Augustyn, J., Riley, D., & Riley, D. (2021). Solar Transposition Modeling via Deep Neural Networks with Sky Images [Conference Paper]. https://www.osti.gov/biblio/1883479 Publication ID: 78907
  • Coston, J., Stein, J., Robinson, C., Braid, J.L., Riley, D., King, B., & King, B. (2021). Effects of Solar Angle of Incidence on Intramodular Photovoltaic Irradiance Uniformity [Conference Presenation]. https://doi.org/10.2172/1872905 Publication ID: 78825
  • Burnham, L., Riley, D., Braid, J.L., & Braid, J.L. (2020). Increasing Photovoltaic Efficiency in Snowy Climates: Design Considerations [Conference Poster]. https://www.osti.gov/biblio/1820560 Publication ID: 74835
  • Riley, D., Robinson, C., Stein, J., King, B., & King, B. (2020). Degradation of Fielded PV Modules in Three Climates after Eight Years [Conference Poster]. https://www.osti.gov/biblio/1820259 Publication ID: 74774
  • Riley, D., Stein, J., & Stein, J. (2020). Characterizing and Modeling AC PV Modules [Conference Poster]. https://www.osti.gov/biblio/1819261 Publication ID: 74766
  • Prilliman, M., Stein, J., Riley, D., Tamizhmani, G., & Tamizhmani, G. (2020). Transient Weighted Moving-Average Model of Photovoltaic Module Back-Surface Temperature. IEEE Journal of Photovoltaics, 10(4), pp. 1053-1060. https://doi.org/10.1109/JPHOTOV.2020.2992351 Publication ID: 73346
  • Braid, J.L., Riley, D., Pearce, J., Burnham, L., & Burnham, L. (2020). Image Analysis Method for Quantifying Snow Losses on PV Systems [Conference Poster]. https://www.osti.gov/biblio/1807432 Publication ID: 73786
  • Braid, J.L., Riley, D., Pearce, J., Burnham, L., & Burnham, L. (2020). Image Analysis Method for Quantifying Snow Losses on PV Systems [Conference Poster]. https://www.osti.gov/biblio/1807431 Publication ID: 73785
  • Burnham, L., Riley, D., Walker, B., Pearce, J., & Pearce, J. (2019). Performance of Bifacial Modules Dual-Axis Trackers in a High-Latitude High-Albedo Environment [Conference Poster]. https://doi.org/10.1109/PVSC40753.2019.8980964 Publication ID: 69169
  • Riley, D., Robinson, C., Stein, J., King, B., & King, B. (2019). 8-Year Degradation Assessment of Fielded PV in Three Climates – Poster for DOE Showcase [Conference Poster]. https://www.osti.gov/biblio/1640783 Publication ID: 69166
  • Riley, D., Burnham, L., Walker, B., Pearce, J., & Pearce, J. (2019). Snow Shedding Differences between Framed and Frameless Modules – Poster [Conference Poster]. https://www.osti.gov/biblio/1640744 Publication ID: 69109
  • Riley, D., Burnham, L., Walker, B., Pearce, J.M., & Pearce, J.M. (2019). Differences in Snow Shedding in Photovoltaic Systems with Framed and Frameless Modules [Conference Poster]. Conference Record of the IEEE Photovoltaic Specialists Conference. https://doi.org/10.1109/PVSC40753.2019.8981389 Publication ID: 69095
  • Hansen, C., Riley, D., & Riley, D. (2019). Open-source Software for Solar Power: Update [Conference Poster]. https://www.osti.gov/biblio/1640607 Publication ID: 68998
  • Burnham, L., Riley, D., Pearce, J., Walker, B., & Walker, B. (2019). Performance of Bifacial Modules on a Dual-Axis Tracker in a High-Albedo Environment [Conference Poster]. https://www.osti.gov/biblio/1639220 Publication ID: 66955
  • Riley, D., Stein, J., Carmignani, C., & Carmignani, C. (2018). Performance of Bifacial PV Modules with MLPE vs. String Inverters [Conference Poster]. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 – A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. https://doi.org/10.1109/PVSC.2018.8547351 Publication ID: 62713
  • King, B., Robinson, C., Carmignani, C., Riley, D., Jones, C.B., & Jones, C.B. (2018). Application of the Sandia Array Performance Model to Assess Multiyear Performance of Fielded CIGS PV Arrays [Conference Poster]. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 – A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85059883182&origin=inward Publication ID: 62701
  • Riley, D., Stein, J., Carmignani, C., & Carmignani, C. (2018). Performance of Bifacial PV Modules with MLPE vs. String Inverters [Conference Poster]. https://doi.org/10.1109/PVSC.2018.8547351 Publication ID: 63605
  • Hansen, C., Stein, J., Riley, D., Lave, M., Deline, C., Toor, F., & Toor, F. (2018). Field Performance of Bifacial PV Modules and Systems [Conference Poster]. https://www.osti.gov/biblio/1581945 Publication ID: 63707
  • King, B., Robinson, C., Carmignani, C., Riley, D., Jones, C., & Jones, C. (2018). Application of the Sandia Array Performance Model to Assess Multiyear Performance of Fielded CIGS PV Arrays [Conference Poster]. https://doi.org/10.1109/PVSC.2018.8548108 Publication ID: 62700
  • Riley, D., Stein, J., Hansen, C., & Hansen, C. (2018). 2018 IEEE PVSC Tutorial PV System Modeling [Conference Poster]. https://www.osti.gov/biblio/1511110 Publication ID: 61880
  • Hansen, C., Stein, J., Riley, D., Lave, M., Deline, C., Toor, F., & Toor, F. (2018). Field Performance of Bifacial PV Modules and Systems [Conference Poster]. https://www.osti.gov/biblio/1513695 Publication ID: 59220
  • Hansen, C., Riley, D., Deline, C., Toor, F., Stein, J., & Stein, J. (2017). A Detailed Performance Model for Bifacial PV Modules [Conference Poster]. https://www.osti.gov/biblio/1478165 Publication ID: 53545
  • Hansen, C., Riley, D., Deline, C., Toor, F., Stein, J., & Stein, J. (2017). A Detailed Performance Model for Bifacial PV Modules [Conference Poster]. https://www.osti.gov/biblio/1478164 Publication ID: 53546
  • Stein, J., Riley, D., Lave, M., Deline, C., Toor, F., Hansen, C., & Hansen, C. (2017). Outdoor Field Performance from Bifacial Photovoltaic Modules and Systems [Conference Poster]. https://www.osti.gov/biblio/1474810 Publication ID: 53164
  • Stein, J., Riley, D., Lave, M., Deline, C., Toor, F., Hansen, C., & Hansen, C. (2017). Outdoor Field Performance of Bifacial PV Modules and Systems [Conference Poster]. https://www.osti.gov/biblio/1474824 Publication ID: 53186
  • Stein, J., Riley, D., Lave, M., Hansen, C., Deline, C., Toor, F., & Toor, F. (2017). Outdoor Field Performance of Bifacial PV Modules and Systems [Conference Poster]. https://www.osti.gov/biblio/1459780 Publication ID: 57152
  • Marion, B., MacAlpine, S., Deline, C., Asgharzadeh, A., Toor, F., Riley, D., Stein, J., Hansen, C., & Hansen, C. (2017). A Practical Irradiance Model for Bifacial PV Modules [Conference Poster]. https://www.osti.gov/biblio/1460254 Publication ID: 57187
  • Hansen, C., Gooding, R., Guay, N., Riley, D., Kallickal, J., Ellibee, D., Asgharzadeh, A., Marion, B., Toor, F., Stein, J., & Stein, J. (2017). A Detailed Model of Rear-Side Irradiance for Bifacial PV Modules [Conference Poster]. Conference Record of the IEEE Photovoltaic Specialists Conference. https://doi.org/10.1109/PVSC.2017.8366707 Publication ID: 57337
  • Riley, D., Hansen, C., Stein, J., Lave, M., Kallickal, J., Marion, B., Toor, F., & Toor, F. (2017). A Performance Model for Bifacial PV Modules [Conference Poster]. https://www.osti.gov/biblio/1458425 Publication ID: 57029
  • Hansen, C., Gooding, R., Guay, N., Riley, D., Kallickal, J., Ellibee, D., Asgharzadeh, A., Marion, B., Toor, F., Stein, J., & Stein, J. (2017). A Detailed Model of Rear-Side Irradiance for Bifacial PV Modules [Conference Poster]. https://www.osti.gov/biblio/1458397 Publication ID: 57012
  • Stein, J., Riley, D., Lave, M., Hansen, C., Deline, C., Toor, F., & Toor, F. (2017). Outdoor Field Performance from Bifacial Photovoltaic Modules and Systems [Conference Poster]. Conference Record of the IEEE Photovoltaic Specialists Conference. https://doi.org/10.1109/PVSC.2017.8366042 Publication ID: 56979
  • Hansen, C., Riley, D., Stein, J., & Stein, J. (2017). 2017 IEEE PVSC tutorial PV system modeling [Conference Poster]. https://www.osti.gov/biblio/1513607 Publication ID: 56735
  • Hansen, C., Riley, D., & Riley, D. (2017). Performance model for bifacial PV modules [Conference Poster]. https://www.osti.gov/biblio/1367197 Publication ID: 56364
  • King, B., Hansen, C., Riley, D., Robinson, C., Pratt, L., & Pratt, L. (2016). Outdoor test and analysis procedures for generating coefficients for the Sandia Array Performance Model [Conference Poster]. Conference Record of the IEEE Photovoltaic Specialists Conference. https://doi.org/10.1109/PVSC.2016.7750225 Publication ID: 50367
  • Stein, J., Lave, M., Riley, D., & Riley, D. (2016). Bifacial PV: Field results from the US on bifacial gains from modules strings and systems [Presentation]. https://www.osti.gov/biblio/1395805 Publication ID: 52491
  • Riley, D., Stein, J., & Stein, J. (2016). The Regional Test Center Data Transfer System. https://doi.org/10.2172/1431479 Publication ID: 52461
  • Burton, P., Hendrickson, A., Ulibarri, S.S., Riley, D., Boyson, W.E., King, B., & King, B. (2016). Pattern Effects of Soil on Photovoltaic Surfaces. IEEE Journal of Photovoltaics, 6(4), pp. 976-980. https://doi.org/10.1109/jphotov.2016.2567100 Publication ID: 49824
  • King, B., Hansen, C., Riley, D., Robinson, C., Pratt, L., & Pratt, L. (2016). Outdoor Test and Analysis Procedures for Generating Coefficients for the Sandia Array Performance Model [Conference Poster]. https://doi.org/10.1109/PVSC.2016.7750225 Publication ID: 50387
  • Riley, D., Fleming, J., Gallegos, G., & Gallegos, G. (2016). A Photovoltaic System Payback Calculator. https://doi.org/10.2172/1259560 Publication ID: 50573
  • King, B., Hansen, C., Riley, D., Robinson, C., Pratt, L., & Pratt, L. (2016). Procedure to Determine Coefficients for the Sandia Array Performance Model (SAPM). https://doi.org/10.2172/1256510 Publication ID: 50384
  • Driesse, A., Stein, J., Riley, D., Carmignani, C., & Carmignani, C. (2015). Monitoring current, voltage and power in photovoltaic systems [Conference Poster]. 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84961659535&origin=inward Publication ID: 44745
  • King, B., Hansen, C., Stein, J., Riley, D., Gonzalez, S., & Gonzalez, S. (2015). Final Technical Report: Characterizing Emerging Technologies. https://doi.org/10.2172/1233826 Publication ID: 42085
  • Riley, D. (2015). Mapping HCPV Module or System Response to Solar Incident Angle [Conference Poster]. https://www.osti.gov/biblio/1256259 Publication ID: 43747
  • Riley, D. (2015). Performance Model for Characterizing AC Modules and Predicting Their Power [Conference Poster]. https://www.osti.gov/biblio/1256577 Publication ID: 43847
  • Stein, J., Hansen, C., Riley, D., & Riley, D. (2015). 2015 IEEE PVSC Tutorial on PV System Performance [Conference Poster]. https://www.osti.gov/biblio/1257168 Publication ID: 43912
  • King, B., Riley, D., Robinson, C., Pratt, L., & Pratt, L. (2015). Recent Advancements in Outdoor Measurement Techniques for Angle of Incidence Effects [Conference Poster]. https://www.osti.gov/biblio/1257563 Publication ID: 43936
  • Armijo, K., Yang, B., Riley, D., Lavrova, O., Gonzalez, S., & Gonzalez, S. (2015). Predictive Reliability for AC Photovoltaic Modules Based on Electro-Thermal Phenomena [Conference Poster]. https://doi.org/10.1109/PVSC.2015.7355989 Publication ID: 44008
  • Armijo, K., Yang, B., Riley, D., Lavrova, O., Gonzalez, S., Lomasney, H., & Lomasney, H. (2015). Predictive Reliability for AC Photovoltaic Modules Based on Electro-Thermal Phenomena [Conference Poster]. https://doi.org/10.1109/PVSC.2015.7355989 Publication ID: 44009
  • Riley, D., Riley, D., & Riley, D. (2015). Performance Model for Characterizing AC Modules and Predicting Their Power [Conference Poster]. https://doi.org/10.1109/PVSC.2015.7356177 Publication ID: 44016
  • King, B., Riley, D., Robinson, C., Pratt, L., & Pratt, L. (2015). Recent Advances in Outdoor Measurement Techniques for Angle of Incidence Effects [Conference Poster]. https://www.osti.gov/biblio/1341487 Publication ID: 44022
  • Riley, D. (2015). Mapping HCPV Module or System Response to Solar Incident Angle [Conference Poster]. https://www.osti.gov/biblio/1248643 Publication ID: 42902
  • Armijo, K., Yang, B., Riley, D., Lavrova, O., Gonzalez, S., Lomasney, H., & Lomasney, H. (2015). Predictive Reliability for AC Photovoltaic Modules Based on Electro-Thermal Phenomena [Conference Poster]. https://www.osti.gov/biblio/1237882 Publication ID: 41429
  • Burton, P., King, B., Riley, D., & Riley, D. (2015). Predicting the spectral effects of soils on high concentrating photovoltaic systems. Solar Energy, 112, pp. 469-474. https://doi.org/10.1016/j.solener.2014.11.022 Publication ID: 38066
  • Riley, D., Hansen, C., & Hansen, C. (2015). Sun-relative pointing for dual-axis solar trackers employing azimuth and elevation rotations. Journal of Solar Energy Engineering, Transactions of the ASME. https://doi.org/10.1115/1.4029379 Publication ID: 40475
  • Quiroz, J., Gonzalez, S., King, B., Riley, D., Johnson, J., Stein, J., & Stein, J. (2014). Photovoltaic Microinverter Testbed for Multiple Device Interoperability. https://doi.org/10.2172/1490540 Publication ID: 39561
  • Driesse, A., Stein, J., Riley, D., Carmignani, C., & Carmignani, C. (2014). Sampling and Filtering in Photovoltaic System Performance Monitoring. https://doi.org/10.2172/1323558 Publication ID: 39237
  • Andrews, R., Stein, J., Hansen, C., Riley, D., & Riley, D. (2014). Introduction to the Open Source PV LIB for Python Photovoltaic System Modeling Package [Conference Poster]. https://www.osti.gov/biblio/1241774 Publication ID: 38910
  • Riley, D., Stein, J., Hansen, C., & Hansen, C. (2014). 2014 IEEE PVSC Tutorial on PV System Performance Modeling [Presentation]. https://www.osti.gov/biblio/1714482 Publication ID: 41032
  • Riley, D., Fresquez, A., & Fresquez, A. (2014). Determining the Effect of Temperature on Microinverter Inversion Efficiency [Conference]. https://doi.org/10.1109/PVSC.2014.6925179 Publication ID: 40901
  • King, B., Riley, D., Hansen, C., Erdman, M., Gabriel, J., Ghosal, K., & Ghosal, K. (2014). HCPV characterization: Analysis of fielded system data [Conference]. AIP Conference Proceedings. https://doi.org/10.1063/1.4897077 Publication ID: 40329
  • Burton, P., King, B., Riley, D., & Riley, D. (2013). Predicting the Spectral Effects of Soils on Multijunction Photovoltaic Systems [Presentation]. https://www.osti.gov/biblio/1677566 Publication ID: 31915
  • Riley, D. (2013). Performance model for Semprius module RDD-MOD-296 PSEL 2941 [Presentation]. https://www.osti.gov/biblio/1673560 Publication ID: 36319
  • Cruz-Campa, J.L., Anderson, B., Gupta, V., Tauke-Pedretti, A., Cederberg, J., Paap, S., Sanchez, C.A., Nordquist, C., Nielson, G., Saavedra, M., Ballance, M., Nguyen, J., Alford, C., Riley, D., Okandan, M., Lentine, A.L., Sweatt, W., Jared, B.H., Resnick, P., Kratochvil, J., & Kratochvil, J. (2013). Flat plate concentrators with large acceptance angle enabled by micro cells and mini lenses: performance evaluation [Conference]. https://www.osti.gov/biblio/1296815 Publication ID: 35896
  • Riley, D., Stein, J., Kratochvil, J., & Kratochvil, J. (2013). Testing and Characterization of PV Modules with Integrated Microinverters [Conference]. https://doi.org/10.1109/PVSC.2013.6744270 Publication ID: 34113
  • Hansen, C., Riley, D., & Riley, D. (2013). Determining Coefficients for the Sandia Array Performance Model [Conference]. https://www.osti.gov/biblio/1079168 Publication ID: 33525
  • Riley, D. (2012). Calibration of the Sandia Array Performance Model Using Indoor Measurements [Conference]. https://doi.org/10.1109/PVSC.2012.6318229 Publication ID: 29760
  • Riley, D., Johnson, J., & Johnson, J. (2012). Photovoltaic Prognostics and Health Management using Learning Algorithms [Conference]. https://www.osti.gov/biblio/1060445 Publication ID: 29759
  • Granata, J., Sorensen, N., Riley, D., & Riley, D. (2012). Design for Reliability: A Low Concentration PV Case Study [Conference]. https://www.osti.gov/biblio/1064104 Publication ID: 28786
  • Granata, J., Sorensen, N., Riley, D., & Riley, D. (2012). Design for Reliability: A Low Concentration PV Case Study [Conference]. https://www.osti.gov/biblio/1064396 Publication ID: 28785
  • Riley, D. (2011). Comparison of a Recurrent Neural Network PV System Model with a Traditional Component-Based PV System Model [Conference]. https://www.osti.gov/biblio/1107516 Publication ID: 23226
  • Riley, D., Stein, J., & Stein, J. (2010). Performance model assessment for multi-junction concentrating photovoltaic systems [Conference]. https://www.osti.gov/biblio/1028935 Publication ID: 17724
  • Riley, D., Stein, J., & Stein, J. (2010). Performance model assessment for multi-junction concentrating photovoltaic systems [Conference]. https://www.osti.gov/biblio/991836 Publication ID: 17723
  • Riley, D., Cameron, C., Jacob, J., Granata, J., & Granata, J. (2009). Quantifying the effects of averaging and sampling rates on PV system and weather data [Conference]. https://www.osti.gov/biblio/966620 Publication ID: 16255
  • Jacob, J., Cameron, C., Granata, J., Riley, D., & Riley, D. (2009). Quantifying the effects of averaging and sampling rates on PV system and weather data [Conference]. https://www.osti.gov/biblio/966624 Publication ID: 16251
  • Riley, D. (2008). COMPARISON OF PV SYSTEM PERFORMANCE-MODEL PREDICTIONS WITH MEASURED PV SYSTEM PERFORMANCE [Conference]. https://doi.org/10.1109/PVSC.2008.4922865 Publication ID: 13718
  • Riley, D. (2008). COMPARISON OF PV SYSTEM PERFORMANCE-MODEL PREDICTIONS WITH MEASURED PV SYSTEM PERFORMANCE [Conference]. https://doi.org/10.1109/PVSC.2008.4922865 Publication ID: 13717
Showing 10 of 79 publications.