login

Search documents

Browse topics

Document details

 
Title:
 
PV Plant Monitoring Needs Both – Data Analysis and On-Site Inspection
 
Author(s):
 
W. Mühleisen, L. Neumaier, J. Kosel, C. Hirschl, R. Rattenberger, P. Prasser
 
Keywords:
 
Monitoring, System Performance
 
Topic:
 
PV Systems – Modelling, Design, Operation and Performance
Subtopic: Operation, Performance and Maintenance of PV Systems
Event: 38th European Photovoltaic Solar Energy Conference and Exhibition
Session: 5CV.2.7
 
Pages:
 
1193 - 1195
ISBN: 3-936338-78-7
Paper DOI: 10.4229/EUPVSEC20212021-5CV.2.7
 
Price:
 
 
0,00 EUR
 
Document(s): paper, poster
 

Abstract/Summary:


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.