Effects of PV Module Soiling on Glass Surface Resistance and Potential-Induced Degradation [electronic resource] : Preprint
- Washington, D.C. : United States. Office of the Assistant Secretary of Energy Efficiency and Renewable Energy, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- 838 KB : digital, PDF file
- Additional Creators:
- National Renewable Energy Laboratory (U.S.)
United States. Office of the Assistant Secretary of Energy Efficiency and Renewable Energy
United States. Department of Energy. Office of Scientific and Technical Information
- The sheet resistance of three soil types (Arizona road dust, soot, and sea salt) on glass were measured by the transmission line method as a function of relative humidity (RH) between 39% and 95% at 60 degrees C. Sea salt yielded a 3.5 order of magnitude decrease in resistance on the glass surface when the RH was increased over this RH range. Arizona road dust showed reduced sheet resistance at lower RH, but with less humidity sensitivity over the range tested. The soot sample did not show significant resistivity change compared to the unsoiled control. Photovoltaic modules with sea salt on their faces were step-stressed between 25% and 95% RH at 60 degrees C applying -1000 V bias to the active cell circuit. Leakage current from the cell circuit to ground ranged between two and ten times higher than that of the unsoiled controls. Degradation rate of modules with salt on the surface increased with increasing RH and time.
- Published through SciTech Connect.
Presented at the 43rd IEEE Photovoltaic Specialists Conference, 14-19 June 2015, New Orleans, Louisiana.
Hacke, Peter; Burton, Patrick; Hendrickson, Alex; Spartaru, Sergiu; Glick, Stephen; Terwilliger, Kent.
- Funding Information:
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