PV Plant Monitoring Needs Both – Data Analysis and On-Site Inspection

Autor: Mühleisen, W., Neumaier, L., Kosel, J., Hirschl, C., Rattenberger, R., Prasser, P.
Jazyk: angličtina
Rok vydání: 2021
Předmět:
DOI: 10.4229/eupvsec20212021-5cv.2.7
Popis: 38th European Photovoltaic Solar Energy Conference and Exhibition; 1193-1195
Photovoltaic systems can be controlled with several approaches. By means of monitoring or with sample measurements on site. On a 9-year-old photovoltaic system with 970 kWp in the south of Austria, both approaches were pursued to investigate whether a cost-effective monitoring analysis alone is sufficient. The identification and partial repair of several superimposed failure cases such as shading, dirt, glass breakage and backsheet cracks ultimately showed that a data analysis with a determined performance ratio alone is not sufficient to draw complete conclusions about PV system and energy yield.
Databáze: OpenAIRE