I-V curves and visual inspection of 250 PV modules deployed over 2 years in tucson
To study degradation of PV systems, we measured current-voltage (I-V) curves from 250 modules that have been deployed in grid-tied systems for 2 to 12 years in Arizona. We also documented visual signs of weathering. The I-V curves exhibit a variety of imperfections and considerable dispersion of P m...
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| creator | Kopp, E. S. Lonij, V. P. Brooks, A. E. Hidalgo-Gonzalez, P. L. Cronin, A. D. |
| description | To study degradation of PV systems, we measured current-voltage (I-V) curves from 250 modules that have been deployed in grid-tied systems for 2 to 12 years in Arizona. We also documented visual signs of weathering. The I-V curves exhibit a variety of imperfections and considerable dispersion of P max values. Although many of these modules appear weathered, we found few significant correlations between visible signs of weathering and lower P max values, and the most degraded modules have no correlation between visual defects and performance. This indicates that important forms of degradation can remain hidden to the eye. |
| doi_str_mv | 10.1109/PVSC.2012.6318251 |
| format | Conference Proceeding |
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This indicates that important forms of degradation can remain hidden to the eye.</description><subject>Correlation</subject><subject>Current measurement</subject><subject>current-voltage characteristics</subject><subject>Degradation</subject><subject>Delamination</subject><subject>field testing</subject><subject>Inspection</subject><subject>Junctions</subject><subject>PV degradation</subject><subject>PV efficiency</subject><subject>Visualization</subject><issn>0160-8371</issn><isbn>1467300640</isbn><isbn>9781467300643</isbn><isbn>9781467300667</isbn><isbn>1467300667</isbn><isbn>1467300659</isbn><isbn>9781467300650</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2012</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNo1kN1KwzAcxSMquM09gHiTF2j956tJLqXoHAwcOno70jSBSteUpi307S04r8458Dvn4iD0RCAlBPTLsfjOUwqEphkjigpyg7ZaKsIzyQCyTN6i9X_gcIdWQDJIFJPkAa1j_AGgwDKyQl_7pMB27CcXsWkrPNVxNA2u29g5O9ShxcFjKgAfC3wJ1dgsXOW6JsyuwmFyPaZ4dqaPSwUPo42hfUT33jTRba-6Qaf3t1P-kRw-d_v89ZDUGobEci4tEE6lKYXV1jtlpKAgFBecm8VzqHypndLUW-W1omA9Y4Kbkijh2QY9_83Wzrlz19cX08_n6x3sFyuYUEE</recordid><startdate>201206</startdate><enddate>201206</enddate><creator>Kopp, E. 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D.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Kopp, E. S.</au><au>Lonij, V. P.</au><au>Brooks, A. E.</au><au>Hidalgo-Gonzalez, P. L.</au><au>Cronin, A. D.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>I-V curves and visual inspection of 250 PV modules deployed over 2 years in tucson</atitle><btitle>2012 38th IEEE Photovoltaic Specialists Conference</btitle><stitle>PVSC</stitle><date>2012-06</date><risdate>2012</risdate><spage>003166</spage><epage>003171</epage><pages>003166-003171</pages><issn>0160-8371</issn><isbn>1467300640</isbn><isbn>9781467300643</isbn><eisbn>9781467300667</eisbn><eisbn>1467300667</eisbn><eisbn>1467300659</eisbn><eisbn>9781467300650</eisbn><abstract>To study degradation of PV systems, we measured current-voltage (I-V) curves from 250 modules that have been deployed in grid-tied systems for 2 to 12 years in Arizona. We also documented visual signs of weathering. The I-V curves exhibit a variety of imperfections and considerable dispersion of P max values. 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| identifier | ISSN: 0160-8371 |
| ispartof | 2012 38th IEEE Photovoltaic Specialists Conference, 2012, p.003166-003171 |
| issn | 0160-8371 |
| language | eng |
| recordid | cdi_ieee_primary_6318251 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Correlation Current measurement current-voltage characteristics Degradation Delamination field testing Inspection Junctions PV degradation PV efficiency Visualization |
| title | I-V curves and visual inspection of 250 PV modules deployed over 2 years in tucson |
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