Announcing our upcoming webinar of the PVQAT Soiling Group: Soiling Lessons from Other Industries 11 September 2018 14:00 UTC 7:00 San Jose 8:00 Denver 16:00 Paris 18:00 Dubai 19:30 Mumbai 22:00 Shanghai For the time in other locations, consult this event world clock

This month we will explore how the experience of coating durability in architectural glazing and soiling, more generally, in CSP systems can inform efforts in the PV industry.. Agenda:

Durability Testing of Glass Coatings for Architectural Glazing — David Strickler, NSG North America Coated glass products for architectural applications need to maintain optical and thermal performance as well as good aesthetics for the expected 20 – 30 year lifetime of the window. Anti-reflective or anti-soiling coatings can be used on the outer surface of insulated glazing units, typically the most demanding application for coated glass in buildings. In this presentation, the EN1096-2 test methods for evaluating the durability of exposed coatings will be reviewed. In addition, the EN1096-5 test for self-cleaning coatings will be discussed.

Soiling in CSP: modeling and forecasting from weather inputs — Fabian Wolfertstetter, German Aerospace Center (DLR) This second installment of a two-part presentation will describe the CSP soiling model developed at DLR that could be applied to PV soiling rates as well. It derives soiling rates from other weather parameter measurements like particulate concentration, wind, relative humidity and others. It is based on deposition mechanisms as used in atmospheric dust transport models such as the NMMB-MONARCH run at the Barcelona Supercomputing Center. The goal is to couple the model to dust transport models in order to produce soiling forecasts and soiling maps for solar technologies.

Our speakers: Dr. David Strickler is the Manager of Thin Film Technology at the NSG North America Technical Center. His current responsibilities include development of new coated glass products which utilize NSG’s proprietary atmospheric pressure chemical vapor deposition manufacturing process. This CVD technology is currently used to produce transparent conductive oxide coatings for thin film photovoltaic modules and heated glass doors for refrigerated display cases as well as low emissivity, solar control, anti-reflective, and anti-soiling coatings for buildings. During his 29 year career at NSG (formerly Pilkington, formerly Libbey-Owens-Ford), Dr. Strickler has also worked on projects related to electrochromic devices, sputtering technology, and novel interlayers for glass lamination. Dr. Strickler has a B.A. in Chemistry & Mathematics from Grinnell College (Grinnell, IA) and a Ph.D. in Physical Chemistry from Harvard University.

Fabian Wolfertstetter received his Diploma in Physics with a specialization in Biophysics from the University of Munich in 2010. He started his PhD on the topic of the effects of soiling on concentrating solar power plants at DLR’s offices located in CIEMAT’s Plataforma Solar de Almeria in southern Spain in 2011. After receiving his PhD from the University of Aachen in 2016, he continued working at DLR as a researcher and project manager. His main fields of research are water saving in CSP plants, especially regarding soiling and cleaning of mirrors. Other interests include ground based meteorological measurements, data management, solar resource assessment and yield analysis, optical effects of particles on solar surfaces. Fabian lives with his family in two off-grid yurts in an orange grove in Almería and runs an outdoor kindergarten with a modern educational concept.

Meeting Details: PVQAT TG12 webinar: Access Code 605-616-101 Meeting link: https://www.gotomeet.me/PVQAT_TG12_webinars You can also dial in using your phone: Australia: +61 2 8355 1038 France: +33 170 950 590 Norway: +47 21 93 37 37 Austria: +43 1 2060 92964 Germany: +49 693 8098 999 Spain: +34 932 75 1230 Belgium: +32 28 93 7002 Ireland: +353 15 360 756 Sweden: +46 853 527 818 Canada: +1 (647) 497-9373 Italy: +39 0 230 57 81 80 Switzerland: +41 225 4599 60 Denmark: +45 32 72 03 69 Netherlands: +31 207 941 375 United Kingdom: +44 330 221 0097 Finland: +358 923 17 0556 New Zealand: +64 9 913 2226 United States: +1 (646) 749-3117

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