WP1 is the administrative WP for the other WPs and it is important for the correct evolution and implementation of the work. The UCY will assume full responsibility for overall project management and coordination ensuring adherence to the project timelines. The overall aim of the management structure and procedures followed is to ensure efficient and smooth running from the beginning of the project and to oversee all activities and tasks, optimising processes and managing the consortium.
This WP is concerned with ensuring that the work carried out in the course of this project benefits a wide range of entities outside those involved directly in the work. It will ensure that the work is published in appropriate conferences motivating and informing others in the field. It will also enhance the transfer of knowledge between the consortium members, giving new insight. Making the disseminated data and background available in the form of a website will provide valuable information to interested stakeholders. Another important objective of this work package is to ensure that advances in photovoltaic degradation test methodology that are developed are exploited in future standards, through establishing an exchange of information with relevant bodies (IEA PVPS Task 13, IEC, NREL Degradation initiative and others). Dissemination will primarily take place through presentation of the results to international conferences (IEEE PVSC, EU PVSEC, etc.) and workshops (NREL PVRW, PVPMC, etc.).
WP3 will deal with data management activities aiming to ensure high quality data for degradation rate and failure diagnosis studies. The recorded meteorological and PV operational data from the field test sites will be thoroughly examined for missing and erroneous values and an optimum methodology for treating missing and erroneous data for degradation rate estimation studies with low uncertainty will be developed. Additionally, a sensitivity analysis on the impact of the equipment/sensors uncertainty on the estimation of performance indicators of the PV system will be conducted.
WP4 focuses on PV performance degradation approaches. More specifically, initially the impact of different climates on degradation rate will be investigated. A uniform data handling and degradation estimation approach will be applied to the data of WP3 in order to extract degradation rates as a function of given climates as specified by the Koppen Geiger climate classification. In addition, a new methodology for estimating the degradation rate of fielded PV systems based on the change point analysis will be developed. The change point method will be investigated in order to identify non-linear behavior in the trend of degradation rate.Moreover, a comparison between the different reported statistical techniques (Linear Regression, Principal Components Analysis, Classical time series decomposition, Year on Year, Change point analysis and ARIMA) in the literature will be performed, by applying them on grid-connected PV technologies installed in Cyprus and Israel. The results of the comparative analysis are expected to be also disseminated through the corresponding IEC standard on PV degradation.
The main target of WP5 is the development and verification of failure detection and classification algorithms. Failure diagnostic algorithms will be developed in order to diagnose potential failures at early stages or before occurrence for ensuring the optimal performance of PV systems.
In this WP, all the developed algorithms, routines and models of WP3 to WP5 will be integrated into the commercial product for optimal O&M practices. The product will be then validated against different types of PV technologies installed in Cyprus and Israel enabling a strong verification of the procedure.