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deugro group Appoints Rasmus Jørgensen
London, United Kingdom, October 28, 2021 – deugro group appoints Rasmus Jørgensen Vice President Global Business Development – Renewable Energy, effective October 1, 2021. With this, deugro group is taking a further step to position the group of companies with a dedicated Sustainable Energy team. Rasmus Jørgensen has 14 years’ experience in the offshore energy… Read more »
将新一代背板的市场份额扩大一倍
Endurans™ Solar业务总监 Hugo Schoot 向 PES 讲述了光伏组件背板的发展过程,解释了有望在近期实现理想性价比的原因。 PES:欢迎您来到 PES,Hugo!很高兴能采访您。首先,您能否先简要介绍一下 Endurans™ Solar? Hugo Schoot : 当然可以。以前,DSM Advanced Solar 致力于为太阳能组件开发、生产先进的背板和高端导电背板。我们的产品具有独特的卖点,在可靠性、性价比、环保等方面表现出色。在新母公司 Worthen Industries 的领导之下,我们计划凭借优质的产品迅速扩大全球市场份额。 PES:贵公司的计划听起确实雄心勃勃令人振奋。那请您再向我们介绍一下背板的实际应用情况吧。 HS:可以。背板能够保护光伏组件免受水气、紫外线辐射和机械应力的影响,直接影响组件功率和使用寿命。根据电气与电子工程师协会的数据,大约 9% 的太阳能电池板故障与背板有关。据统计,2020 年因背板问题需要更换的失效组件就占到年度装机总量的百分之一,损失惨重。反观 Endurans™ 产品,问世六年以来,尚无因背板问题造成的组件失效案例发生。 PES:当时为什么想要更名呢? HS:去年秋天,DSM 将 DSM Advanced Solar 的树脂与功能材料业务(包括光伏组件的减反射涂层)出售给了 Covestro。今年六月,集团又将 DSM Advanced Solar 的背板业务(包括其在中国苏州和欧洲的生产基地)出售给了 Worthen Industries,自此完全退出了太阳能市场,这是集团在综合考虑多个因素之后做出的一次战略调整。 PES:两家公司的价值观和目标是否一致? HS:就内在价值而言,这两家公司简直是非常契合。作为一家家族企业,Worthen Industries 非常重视人、环境和合作关系。双方在共挤出工艺研究和生产方面都有深厚的专业知识积淀,可以取长补短。 凭借我们对聚合物材料及其在光伏组件应用的深入了解,我们坚信能够在市场上携手共进,为我们的下一代背板技术实现真正的突破。 PES:您认为,与竞争对手的产品相比,你们背板产品的竞争优势是什么? HS:在过去几十年里,背板一直是使用粘合剂将三层聚合物膜粘合在一起的方式生产的。而我们的创新工艺则是将自己生产的聚合物例子在加热熔融后一次挤出成型。各层主体均为聚烯烃,其耐老化及阻水性能均明显优于传统背板中使用的聚酯材料。我们的背板产品具有出色的耐紫外,耐水汽等耐老化性能,助力光伏组件客户进一步提升组件的使用寿命至三十年以上。 PES:你们的背板产品对环境保护有什么积极的影响?
面积更大,质量更好,双面可用
撰稿人:EKO USA 应用工程师 Will Beuttell EKO Instruments 欲将赌注压在双面光伏上,希望利用最全面的双面和反照率测量解决方案实现行业领先的精度。 双面光伏 (BPV) 技术诞生已久,但直到 2012 年首批实现成本效益的双面光伏板进入市场后,这项技术才开始在市场上引起关注。自 2019 年起,双面光伏技术更是呈加速发展态势。尽管实现 BPV 技术全面取代单面光伏的道路依然漫长,但 BPV 的关键特性让人相信,不远的将来,它就将取代传统的单面光伏技术。 Wood Mackenzie Power & Renewables (WoodMac) 于 2019 年发布的一份市场调查报告预测,到 2024 年,全球双面组件年产能将超过 21 千兆瓦;而德国机械设备制造业联合会 VDMA 发布的国际光伏技术发展路线图 (ITRPV) 则预测,至 2031 年,双面光伏技术带来的产能增长将占总产能的 80%。 然而,尽管双面光伏技术发展迅猛,但太阳能行业内的许多组织和个人仍没有把握,依然对这项技术本身的可行性或潜在的投资回报缺乏信心。许多业内人士还对双面光伏如此迅速地席卷市场感到奇怪。 那么,BPV 具备哪些关键特性?是什么变化导致它突然间如此受欢迎?规划者、工程师、研究人员或投资者如何确定是否要将经过试验和测试的单面光伏更换为 BPV 呢? 答案就是“反照率”,反射的太阳能量; 我们衡量这反射能量的能力,以及太阳能电池阵列将其转化为电能的能力。 双面光伏组件从光伏板的正面及背面套取太阳能;反照率,通常是指从地面或周围环境反射的能量。
高容性光伏组件电流-电压特性检测研究
撰稿人:王健全1,仇雷飞1,林福苗1 (1. 中检集团南方测试股份有限公司,518055) 摘 要:随着高容性光伏组件市场化进程不断提速,解决容性效应引起的检测结果失真问题变得越来越重要。根据容性作用机理可知,高容性光伏组件的正反扫描I-V特性参数的差异可以反映容性所引起的误差。本文采用宽脉冲测试法和动态I-V测量法对HJT和Topcon等高容性光伏组件进行检测,研究扫描方式、电压扫描速率对于不同类型组件容性误差的影响,为高容性光伏组件I-V特性检测提供参考。 关键词:高容性光伏组件;电压扫描速率;线性扫描;阶梯式扫描 0 引 言 随着光伏平价上网政策实施,光伏行业技术迭代正在加速演绎,高效光伏组件已经成为行业降本增效的必由之路。众所周知,高效光伏组件往往伴随着较强的电容效应,其将影响性能测量的准确性,因此如何准确测量高效光伏组件的电流–电压特性成了行业迫切需要解决的问题。 高容性光伏组件的电容会随着正向电压的增加而增加,这导致其电流–电压特性在从短路电流Isc向开路电压Voc扫描(正向扫描)过程中会因电容充电,从而使测量的电流被低估。同理,从Voc向Isc扫描(反向扫描)过程中会因电容充电,从而也会使测量的电流被高估,且这种与电容相关的误差随着电压的扫描速率的增加而增加[1-2]。由此可以看出快速扫描所引起的电容充放电效应是导致高容性光伏组件I-V特性检测失真原因。 国内外研究机构就如何消除容性效应对高容性光伏组件I-V特性检测的影响进行了研究,并根据检测机理提出了多种解决该问题的关键方法。目前比较流行的方法主要有稳态测试法、分段测试法、宽脉冲测试法、最大功率点修正测试法和动态I-V测试法等[3-4],其中宽脉冲测试法和动态I-V测试法因高效率和相对低成本等优点,而被广泛关注。
使用热激光分离技术将太阳电池切割成半电池或条电池
在过去的几年中,将太阳电池切成半片已成为光伏制造的主流策略。通过使用这些技术,模块级的额定功率和机械强度都得到了显着提高。这也是使最近转向更大的电池格式以及随之而来的模块额定功率跃升的关键发展之一。 由于许多这些较大的格式以及吸引制造商注意的其他技术是需要将电池切成三块或甚至更多块,因此在可预见的未来电池切割肯定会继续成为光伏制造的核心。 但这并非没有挑战或风险。传统的切割工艺是激光划线然后再机械裂片。这种激光划线方法需要大约晶圆厚度的30%-50% 的划线深度并导致太阳电池切割边缘的严重损坏以及微裂纹,两者都对电池的性能产生负面影响。 热激光分离 (TLS) 基础知识 TLS 是来自微电子工业的著名工艺。 多年来伴随着领先制造商的行业参考,该工艺在半电池切割方面已得到很好的应用。 TLS 工艺是一种用于脆性材料如硅、碳化硅和砷化镓的无损伤激光芯片切割技术。 它依赖于被定义和受控应力场的应用由基于激光的加热和随后的冷却进行工艺。 因此,裂纹被引导穿过整个电池并从而获得两个半电池。 由于 TLS 是一个劈裂工艺,因此需要初始划线 (I-scribe) 来为分离提供明确定义的起点。 然而,与需要后续机械断裂的传统划线相比,这种初始划线非常细微 (只有几微米深、宽和长)。随后基板被激光局部加热和被伴随的去离子水雾冷却,通过巧妙地叠加这两个区域产生了由拉伸和压缩应力组成的应力场在其中引入裂缝机制,与任何可能的晶界或优选的断裂方向无关。 与传统的分离技术相比,TLS 的优势在于其干净、无微裂纹的边缘。 分离边缘不会发生晶体损坏—迄今为止由于烧蚀区域中重新固化的硅的位移这种损坏很常见。 与激光切割相反,不会发生凸起和出现粉尘因为基板只是被加热而不是汽化。采用TLS™ 工艺的太阳电池的机械稳定性明显高于传统工艺的太阳电池,这个工艺不会留下任何残留物。
BYD launches Battery-Box LV Flex 5.0 in Australia and New Zealand
The new system generation following the successful Battery-Box Pro 2.5 doubles capacity, comes with enhanced safety features and certifications and is scalable from 5-320 kWh for maximum flexibility Shenzhen, OCt 28th – BYD Co. Ltd., one of the world’s largest manufacturers of rechargeable batteries, announces the launch of the new Battery-Box LV Flex 5.0. The… Read more »
Goldman Sachs was the top M&A financial adviser in power sector for Q1-Q3 2021, finds GlobalData
Goldman Sachs has emerged as the top financial adviser for mergers and acquisitions (M&A) by both value and volume in the power sector for Q1-Q3 2021, according to GlobalData, having advised on 23 deals worth $67.6bn. The leading data and analytics company notes that there was a total of 1,737 M&A deals announced in the… Read more »
ASCA increases performance of organic solar cells by integrating new semiconductors
By using new semiconductor materials, organic solar cell expert ASCA has increased the efficiency of its modules by 40 percent. The new components are supplied by Taiwanese company Raynergy Tek. Raynergy Tek specializes in developing organic semiconductor materials for OPV modules, such as non-fullerene acceptors (NFAs). With an efficiency record of around 20 percent in… Read more »
Westwood: ~55% of oil and gas production and ~45% of consumption driven largely by countries without legally binding net zero commitments
Aberdeen, UK, 27th October 2021: New analysis from Westwood Global Energy Group (Westwood), the specialist energy market research and consultancy firm, reveals that ~55% of global oil and gas production and ~45% of consumption (as of 2020) is driven by a handful of countries. With the exception of Canada, the top oil and gas producers… Read more »
DNV provides technical due diligence for leading Australian bus electrification project
New South Wales Bus Depot integrates EV Technology with Solar PV and Battery Energy Storage Systems (BESS) to develop green transport and provide grid response services Melbourne, Australia, 26 October 2021 –– DNV, the independent energy expert and assurance provider, is participating in one of Australia’s leading end-to-end bus depot electrification projects. The AUD$40-million initiative in New South… Read more »
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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 »
DNV Introduces New Standard for Wind Turbine Loads and Site Conditions
The comprehensive DNV standard for wind turbine load calculations and site assessments offers industry stakeholders detailed design requirements and guidance for verification and certification activities. Oslo, Tuesday 03 September 2024 – DNV, the independent energy expert and assurance provider, announces a new comprehensive standard for wind turbine load calculations and site assessments, created to guide industry… Read more »
NZTC Clean Energy Start-up Accelerator Opens Applications With £500K Grant Funding Available
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ABP and Clarksons Port Services sign Memorandum of Understanding (MoU) to advance Lowestoft as key offshore energy hub with new Lowestoft Eastern Energy Facility
Associated British Ports (ABP), the UK’s largest port operator, and Clarksons Port Services (CPS), a global leader in shipping agency services, are pleased to announce the signing of a Memorandum of Understanding (MoU). This strategic agreement aims to explore an expanded partnership between the two companies at ABP’s new state-of-the-art Lowestoft Eastern Energy Facility (LEEF),… Read more »
TRESIOS crewing & careers” business unit continues as “MR. JAMES workforce & crewing
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