Effects of Photovoltaic Module Soiling on Glass Surface Resistance and Potential-Induced Degradation

Peter Hacke; Patrick Burton; Alex Hendrickson; Sergiu Spataru; Stephen Glick; Kent Terwilliger

doi:10.1109/PVSC.2015.7355711

Effects of Photovoltaic Module Soiling on Glass Surface Resistance and Potential-Induced Degradation

Peter Hacke, Patrick Burton, Alex Hendrickson, Sergiu Spataru, Stephen Glick, Kent Terwilliger

Materials Science

Research output: Contribution to conference › Paper › peer-review

22 Scopus Citations

Abstract

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°C. Sea salt yielded a 3.5 orders 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°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.

Original language	American English
Number of pages	4
DOIs	https://doi.org/10.1109/PVSC.2015.7355711 https://doi.org/10.1109/PVSC.2015.7355711
State	Published - 14 Dec 2015
Event	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States Duration: 14 Jun 2015 → 19 Jun 2015

Conference

Conference	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
Country/Territory	United States
City	New Orleans
Period	14/06/15 → 19/06/15

Bibliographical note

See NREL/CP-5J00-64492 for preprint

NREL Publication Number

NREL/CP-5J00-66358

Keywords

dust
photovoltaic modules
potential-induced degradation
sea salt
soiling
soot
surface resistance

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Hacke, P., Burton, P., Hendrickson, A., Spataru, S., Glick, S., & Terwilliger, K. (2015). Effects of Photovoltaic Module Soiling on Glass Surface Resistance and Potential-Induced Degradation. Paper presented at 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States. https://doi.org/10.1109/PVSC.2015.7355711, https://doi.org/10.1109/PVSC.2015.7355711

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abstract = "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°C. Sea salt yielded a 3.5 orders 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°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.",

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Hacke, P, Burton, P, Hendrickson, A, Spataru, S, Glick, S & Terwilliger, K 2015, 'Effects of Photovoltaic Module Soiling on Glass Surface Resistance and Potential-Induced Degradation', Paper presented at 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States, 14/06/15 - 19/06/15. https://doi.org/10.1109/PVSC.2015.7355711, https://doi.org/10.1109/PVSC.2015.7355711

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AU - Hacke, Peter

AU - Burton, Patrick

AU - Hendrickson, Alex

AU - Spataru, Sergiu

AU - Glick, Stephen

AU - Terwilliger, Kent

N1 - See NREL/CP-5J00-64492 for preprint

PY - 2015/12/14

Y1 - 2015/12/14

N2 - 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°C. Sea salt yielded a 3.5 orders 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°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.

AB - 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°C. Sea salt yielded a 3.5 orders 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°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.

KW - dust

KW - photovoltaic modules

KW - potential-induced degradation

KW - sea salt

KW - soiling

KW - soot

KW - surface resistance

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T2 - 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015

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ER -

Effects of Photovoltaic Module Soiling on Glass Surface Resistance and Potential-Induced Degradation

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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