From October 12th to 13th, the "Photovoltaic Module Power Curve Evaluation Method" project initiation meeting and the "Photovoltaic Module Enhanced Aging Test" standard working group meeting led by Jianheng was successfully held in Jiaxing. From 16 developers including National Energy Research Institute, Xiehe, Huaneng Tiancheng and Tianhe, LONGi, JA Solar, Jinko, Chint, Daycare, Yingli, Jolywood, Canadian Solar, GCL, Akcome, DuPont, Sunshine, etc. A total of 24 representatives from component manufacturers and component manufacturers attended the meeting. Zhou Gang, General Manager of Jianheng Solar Energy Division, Li Ningda, Senior Director of Modules, Deng Xiaofan, Director of Module R&D, and Zhu Chen, Head of Jiaxing Laboratory, presided over the discussion meeting.

On the afternoon of the 12th, the delegates visited Jianheng Photovoltaic Laboratory (ie Jianheng East China Photovoltaic Testing Center) and Photovoltaic Science and Technology Museum located in Xiuzhou Photovoltaic Town, Jiaxing.

Jianheng Jiaxing Laboratory covers an area of 5,000 square meters and is located in the photovoltaic town of Xiuzhou District, Jiaxing City. It is the "National Key Laboratory of Energy Wind Energy and Solar Energy Simulation and Testing and Certification Technology", and has been accredited by CNAS and CMA in IEC 61215 and IEC 61730. It has complete The component-side IEC 61215: 2016, IEC 61730: 2016, IEC 62804-1: 2015, IEC62782: 2016, IEC 61853: 2011 series test capabilities, and has diversified, differentiated and customized test capabilities.

Jiaxing Photovoltaic Science and Technology Museum integrates popular science and education. It is a must-see check-in point for practitioners in the photovoltaic industry. The science and technology museum has a unique design, adopts the BIPV photovoltaic building integration design, and uses multi-energy complementary technologies such as cadmium telluride photovoltaic, crystalline silicon photovoltaic, and ground source heat pump to present; the positioning is clear, focusing on the theme of photovoltaic, highlighting the popularization of photovoltaic knowledge, small town image display, Enterprise product exhibition and other functions; focus on fun, and create a variety of interactive experience modes such as holographic imaging, photovoltaic scene reproduction, and photovoltaic classrooms.

After the visit on the afternoon of the 12th, the standard working group meeting of "Enhanced Aging Test of Photovoltaic Modules" officially started in the conference room on the first floor of Jiaxing Laboratory. On the morning of the 13th, the kick-off meeting of the "PV module power curve evaluation method" project led by Jianheng was held. At the meeting, Jianheng Zhou Gang issued a letter of appointment to the Jianheng Renewable Energy Expert Committee to Tianhe Zhao Mengyu, GCL Wang Guofeng, Li Ying of National Energy Research Institute, DuPont Hu Hongjie, Daycare Wu Shiliang, and Akcome Ni Zhichun.

The content and results of the meeting are as follows:

"Photovoltaic module power curve evaluation method" project kick-off meeting

With the innovation of photovoltaic cell and module technology in recent years, emerging new technologies and new concepts have brought new problems to the market while bringing higher benefits: how to choose a more suitable and more suitable one according to different application scenarios Photovoltaic module products required by users? The current nameplate power cannot fully represent the power generation capacity of the module in the actual working environment, nor can it evaluate the rationality of the price difference per watt of different module products. A tool for quantitative assessment of actual power generation performance.

The purpose of this project is to launch an environmentally adaptable module "power curve" power generation performance evaluation method recognized by upstream and downstream industries. It has the characteristics of comprehensiveness, operability, and ease of use. Give an objective and quantitative evaluation, show the difference between the apparent and potential actual power generation performance of module products, provide a method for module manufacturers to show the real power generation performance of their products, and also provide a basis for developers to conduct pre-purchasing evaluation of modules.

At the meeting, the experts had a heated discussion on the project objectives, research methods and technical issues. In the follow-up, the working group will sort out relevant technical solutions according to the discussion results, and organize relevant technical seminars in a planned way.

There are nearly 40 members of the working group of "Evaluation Method of "Power Curve" of Photovoltaic Modules, including photovoltaic developers, photovoltaic manufacturing enterprises, testing institutions, scientific research institutes and other industry roles. The discussions and results of each stage of the meeting will be publicized on the working platform of the Jianheng Renewable Energy Expert Committee (http://reec.cgc.org.cn/) and relevant opinions will be collected. Experts are welcome to continue to pay attention.

Standard Working Group Meeting on "Enhanced Aging Test for Photovoltaic Modules"

The outdoor operating environment of photovoltaic modules is complex and diverse, and the factors affecting the life of the modules are very complex. How to ensure that the modules can work reliably outdoors for a long time has always been the focus of the industry. At present, the type approval standards for component products, such as the IEC 61215 series, can only be used as the basic threshold for evaluating the reliability of components. It is not difficult for component products to pass the test requirements. However, some existing strict reliability test protocols have long test cycles, Problems such as high cost and inability to cover all application scenarios. How to use existing equipment and technical conditions to effectively evaluate the reliability of components with economical testing methods, identify the performance of components subjected to specific aging factors in different application environments and scenarios, and ensure the long-term reliability of components in outdoor operation has always been a concern of the industry. direction.

Based on this background, Jianheng led the establishment of a standard working group, which brought together experts from upstream and downstream companies in the industry, including developers, module companies and material suppliers, and was committed to formulating a series of "Enhanced Aging Reliability Tests for Photovoltaic Modules" Standard, solve the actual pain points of photovoltaic module selection in different climate types and application scenarios, provide a more accurate and reliable module reliability evaluation system for the upstream and downstream of the industry, so as to pass the shorter test time and lower Cost identifies component products that are more reliable.

At this standard working group meeting, Jianheng first reviewed the background and objectives of the standard and the expert opinions received at the last standard meeting, and highlighted the major revisions to the draft standard since the last meeting. At the meeting, the experts discussed the test procedures, sequences and the corresponding verification test design, and put forward many instructive opinions and suggestions, which clarified the direction and method for the follow-up work of the standard.