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IEA PVPS Press Release
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International Energy Agency
Photovoltaic Power Systems Programme
PRESS RELEASE
Paris, France, 01 February 2021 – The Task in charge of Performance, Operation and Reliability of Photovoltaic Systems (Task 13) of the IEA PVPS has recently published a new report detailed below.
Climatic Rating of Photovoltaic Modules : 
Different Technologies for Various Operating Conditions

The photovoltaic (PV) energy rating is related to the energy yield performance of a PV module. Unlike the power rating, which is only related to the performance at a single operating point at 25°C, 1000 W/m2, and AM1.5 spectrum (Standard Test Conditions, STC), the energy rating considers several characteristics of the PV module that affect the amount of energy produced: a) low irradiation behaviour b) temperature behaviour c) spectral response and d) angular response. These characteristics are also a function of climate and location conditions, vary over time, and differ widely from the STC. For the PV industry and its market players, accurate information on how much energy PV modules and systems can generate is crucial, and even more relevant than the power rating. In recent times the photovoltaic industry is moving from thinking about power (watt-peak) to thinking about energy (kWh), giving greater importance to the energy rating.

As a whole, this report is a compendium of the current status of energy rating, ranging from input data on technologies (whether measured in the laboratory or outdoors) and on climate, to the description and evaluation of existing methods (IEC 61853 and from other solar re-search institutes). It also opens the discussion on the application of these methods in new technologies such as bifacial modules, BIPV and coloured PV, competitions on method uncertainties and evaluation at system level.


The report, its executive summary and slide summary are available here 

About the IEA PVPS Task 13
Task 13 was established in 2010 within the IEA PVPS Programme in order to continue to research activities on performance and quality issues started in the former Task 2. It is today one of the most respected Tasks within the programme, with contributors from all over the world.
The Task is co-managed by TÜV Rheinland and the Fraunhofer-Institut für Solare Energiesysteme ISE, both from Germany.

Contacts for Further Information:
Ulrike Jahn, Task 13 Operating Agent - ulrike.jahn@de.tuv.com
Boris Farnung, Task 13 Operating Agent - Boris.Farnung@vde.com
The International Energy Agency (IEA), founded in 1974, is an autonomous body within the framework of the Organization for Economic Cooperation and Development (OECD). The Technology Collaboration Program (TCP) was created with a belief that the future of energy security and sustainability starts with global collaboration. The program is made up of thousands of experts across government, academia, and industry dedicated to advancing common research and the application of specific energy technologies.
The IEA Photovoltaic Power Systems Programme (IEA PVPS) is one of the TCP’s within the IEA and was established in 1993. The mission of the programme is to “enhance the international collaborative efforts which facilitate the role of photovoltaic solar energy as a cornerstone in the transition to sustainable energy systems.” In order to achieve this, the Programme’s participants have undertaken a variety of joint research projects in PV power systems applications. The overall programme is headed by an Executive Committee, comprised of one delegate from each country or organisation member, which designates distinct. ‘Tasks,’ that may be research projects or activity areas. This report has been prepared under Task 1, which deals with market and industry analysis, strategic research and facilitates the exchange and dissemination of information arising from the overall IEA PVPS Programme. 

The IEA PVPS participating countries are Australia, Austria, Belgium, Canada, Chile, China, Denmark, Finland, France, Germany, Israel, Italy, Japan, Korea, Malaysia, Mexico, Morocco, the Netherlands, Norway, Portugal, South Africa, Spain, Sweden, Switzerland, Thailand, Turkey, and the United States of America. The European Commission, Solar Power Europe, the Smart Electric Power Alliance (SEPA), the Solar Energy Industries Association and the Copper Alliance are also members. 
 
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