Project PV-Tera - Reliable and Cost-Efficient
Photovoltaic Electricity Generation on the Terawatt-Scale.
PV-Tera is a research project of funded by the Bavarian Ministry of Economic Affairs, Regional Development and Energy (StMWi) with 2.481 Million € of funding for HI ERN over a period of 60 months. The project started in September 2018 and is part of the cooperation between HI ERN and ZAE Bayern.
Even in conservative scenarios, 1 TWp of photovoltaics (PV) will be installed worldwide by 2023 and by 2050 this will rise to around 4.5 TWp. At the same time, the global PV market will double from approximately 100 GWp/year of production today to approximately 200 GWp/year. By 2050, approx. 100-150 GWp of photovoltaics will be installed in Germany. According to current studies, at least 20 TWp of PV will be required worldwide by 2040 in order to make a significant contribution to achieving the climate targets. In order to achieve these goals, new technologies must be developed and validated as well as existing systems analysed with regard to their reliability and cost-effectiveness and, if necessary, replaced by more efficient new systems. For ever larger installations, methods are required in which all measurements are carried out and evaluated automatically, since active evaluation by the user is neither possible in terms of time nor cost for plants of >>100 MWp with >>400000 modules.
In this project, methods for the assessment and improvement of existing plants are to be developed and validated. On the other hand, the necessary metrological methods are to be developed which are needed in the field to evaluate PV modules and systems in operation with regard to their performance in a TW-compatible manner. In order to guarantee the latter, it is urgently necessary, in addition to the development of new measurement technology, to analyse failure cases in depth in order to eliminate their cause in production and to be able to assess their effect on yield and plant safety.
In order to be able to achieve these goals effectively, the following measures will be implemented within the framework of this project
i) developed the necessary measurement technology to implement contactless, non-destructive and at the same time fast measurement procedures to the greatest possible extent in the field of plant characterisation.
ii) Methods for the assessment of the yield and degradation prognosis of PV plants under consideration of location, technology and existing module errors were developed.
iii) the basis has been created for the future assessment of the PV potential of any existing plant in order to make optimum use of all potentials on the way to terawatt PV and thus to expand and "repower" PV in an economically optimised manner.
The project contributes to combining novel measurement technology with automation and new possibilities for performance analysis as well as economic plant optimization. Only through these developments will it be possible to scale PV, since without them it will not be possible to operate PV on the TW scale at a level of quality assurance that ensures security of supply and optimum utilisation of all available space.
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