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单晶硅棒和多晶硅块—— 寻找最佳等级判定方法
单晶硅棒和多晶硅块的等级判定（以下简称“判定”）一直是光伏产业上游供应商最关心的问题之一。由于两种材料的生产工艺不同，它们的判定方法也有差别。 1.单晶硅棒的判定方法 对于单晶硅棒来说，业内的传统判定方法涉及多个步骤：先从硅棒头尾部切下厚晶圆，经热氧和化学腐蚀等处理步骤后，由操作员观察厚晶圆上是否有滑移线。如果有，还需继续向内切片；如果没有，也需要根据经验判断还需切除多少来让剩余部分不含任何黑边、黑环和黑心。这些都直接影响材料的最终电池效率。但是，这个方法检查一片厚晶圆不仅非常耗时，还很依赖操作员的个人经验。 为了缩短判断时间，部分生产商转而使用红外设备来纵向扫描整根硅棒，检测滑移线的位置。每根硅棒最快只需5分钟即可确定含有滑移线的部分。接下来，操作员可根据结果来切除硅棒的废料部分。但是，红外设备无法检测黑边、黑环和黑心等缺陷，因此操作员仍需根据经验向内切割。随之而来的问题是，切多少可以确保完全去除废料，并且不浪费优质部分呢？ 近年来快速兴起的光致发光（PL）成像技术给这个问题带来了及时的解决方案。PL是材料吸收光子后的光辐射。 在光伏硅基材料上应用这个原理，带来了PL成像检测技术：使用模拟太阳光照射硅片或电池片，并用专用的PL镜头来获得样本的PL成像。
Fraunhofer ISE’s CalLab PV Modules Improves Measurement Uncertainty to Record Value of 1.1 %
CalLab PV Modules of the Fraunhofer Institute for Solar Energy Systems ISE has been re-accredited by the German Accreditation Body (DAkkS) as an independent calibration laboratory according to the new standard DIN EN ISO/IEC 17025: 2018. The laboratory reached a record measurement uncertainty of 1.1 percent in the calibration of photovoltaic modules. The measurement reproducibility… Read more »
Government polling shows record support for renewable energy and climate action
New polling released today by the government is highlighting the public’s strong support for renewable energy to boost the economy. The poll shows that a record 76% of people agree that renewable energy industries and developments provide economic benefits to the UK. Only 4% disagreed. Meanwhile, support for non-renewable and fossil fuel technologies hit new levels… Read more »
Meyer Burger provides update on announced potential significant order for its heterojunction (HJT) core equipment
On 22 July 2019, Meyer Burger Technology Ltd (SIX Swiss Exchange: MBTN) announced that it had signed a framework agreement with a North American-based solar cell manufacturing start-up company relating to Meyer Burger’s heterojunction (HJT) core equipment for the production of solar cells. Pursuant to this framework agreement, the placing of orders is subject to… Read more »
securenergy solutions AG unites its shareholders’ skills
The leading minds of SecurEnergy GmbH, Photon Energy Solar GmbH and IWE group bundle their know-how having founded securenergy solutions AG, which will focus on ground-mounted photovoltaic systems within Germany. After several years of successful cooperation, SecurEnergy GmbH from Berlin, Photon Energy Solar GmbH, and IWE group from Denmark combine their common expertise. Therefore, the… Read more »
ORE Catapult, in partnership with the KTN, G+ and Workboat Association, seek rapid solution to increase physical separation during small vessel transit for offshore wind turbine technicians
A new innovation call seeking a solution to increase the physical separation of technicians in the confined spaces of offshore crew transfer vessels (CTVs) during the COVID-19 pandemic has launched today (Thursday 7 May), aimed at improving the safety of personnel required to continue to travel to undertake wind farm inspection, maintenance and repair. Social… Read more »
OPES Solutions supplies solar technology for improved safety in ports
Berlin, 7 May 2020: Off-grid solar module manufacturer OPES Solutions is expanding its commitment to the use of solar technology in safety-related applications. In addition to panels for smart lighting solutions and traffic sensors, the company supplies integrated solar technology for maritime safety ladders made by the Danish manufacturer Port-Safety. The patented “LifeLadder” is an… Read more »
Erection frame for Focus 30 crane fabricated
Revolutionary design enables safer and faster boom lifts in tight spaces Fabrication of the erection frame for Mammoet’s Focus 30 is complete – bringing the crane one step closer to reality. This frame allows the boom to be constructed vertically in sections, making it easier and safer to deploy on packed petrochemical and construction sites…. Read more »
Guidehouse Insights Report Shows Declining EV Battery Pack Prices Across All Vehicle Classes and Powertrains in Coming Decade
As EV adoption rates and manufacturing capacity increase, new innovations are emerging to drive the EV battery technology market forward May 7, 2020 – Boulder, Colo. – A new report from Guidehouse Insights examines the market trends, drivers, and barriers of electric vehicle batteries (EVBs), providing global forecasts for light duty (LD) passenger EVs, medium… Read more »
More from across PES
Harlyn wins third Oceans Winds project to collect and store spare inter array cables at Moray West
North East-based Harlyn Solutions Ltd (Harlyn) has signed an agreement with Ocean Winds for the collection, storage, and emergency preparedness of Moray West’s spare inter array cables (IACs). Moray West is a new offshore wind farm in the outer Moray Firth and this exciting project is set to make a vital contribution to Scotland’s renewable… Read more »
Helvar Welcomes Kim Långström as New CEO
Helvar is pleased to announce that Kim Långström has officially assumed the role of CEO as of September 2nd, 2024. With extensive experience in the smart building industry, Kim is ready to lead Helvar into its next phase of growth and innovation while advancing its mission to provide intelligent, sustainable lighting solutions. Kim joins Helvar from senior… Read more »
Port of Lowestoft welcomes first vessel to Lowestoft Eastern Energy Facility as construction continues at pace
‘Soft start’ to Lowestoft Eastern Energy Facility (LEEF) operations underway with Norside Supporter vessel call. The Port of Lowestoft, the UK’s most easterly port, which is owned and operated by Associated British Ports (ABP), has achieved a significant milestone as it welcomed the first commercial vessel to the Lowestoft Eastern Energy Facility (LEEF) on Tuesday… Read more »
ZF Wind Power Coimbatore is the f irst plant in India to roll out 50 Gigawatts of wind g earboxes
•ZF reinforces its global leadership in wind gearbox technology with a 50 GW milestone of wind gearboxes for ZF Coimbatore •ZF Wind Power Coimbatore, the world’s largest wind gearbox plant outside of China and the only fully integrated gearbox manufacturing facility in India boasts a state-of-the-art setup for both export and domestic production. •ZF reaffirms… Read more »
The next generation of maintenance vessels for offshore wind turbines
KNUD E HANSEN continues to expand its portfolio of innovative designs and extensive experience in the offshore wind farm sector with a new wind turbine maintenance platform – The “Jack-up on Jack-up” concept. This four-legged jack-up vessel features a 15 m wide working platform, which can be elevated to the height of the nacelle, thus… Read more »
Full Circle signs a long-term contract to service four Enercon turbines at Tesco Distribution Centres in England and Wales
Full Circle has signed a new long-term O&M contract with British supermarket chain, Tesco. The contract covers full-scope maintenance and 24/7 remote monitoring of four Enercon E53 turbines situated next to the Tesco Distribution Centres in Daventry, England and Magor, Newport, Wales. The electricity generated by these turbines is designated to power the respective depots…. Read more »
NZTC Clean Energy Start-up Accelerator Opens Applications With £500K Grant Funding Available
ABP and Clarksons Port Services sign Memorandum of Understanding (MoU) to advance Lowestoft as key offshore energy hub with new Lowestoft Eastern Energy Facility
TRESIOS crewing & careers” business unit continues as “MR. JAMES workforce & crewing
Sineng Electric Obtains VDE Compliance Certificate for SN100(X)/110/125PT String Inverter
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