Safaricom Taps VMware to Build a Greenfield Network in Ethiopia

BARCELONA, Spain-Monday 28 February 2022 [ AETOS Wire ]

(BUSINESS WIRE) -- Mobile World Congress 2022 – Safaricom Telecommunication Ethiopia Plc, as part of an international consortium named the Global Partnership for Ethiopia, was granted the second Unified Telecommunication Service License in July 2021. Currently, Safaricom Ethiopia is building a telecom network for commercial launch and to contribute to Ethiopia’s digital transformation and inclusion objectives.

Safaricom Ethiopia has selected VMware (NYSE: VMW) as its Telco Cloud Platform partner.

Pedro Rabacal, Chief Technology Officer at Safaricom Ethiopia, said, “Building a world-class network in Ethiopia will unlock its economic potential as well as build a positive future for people across the country. We aim to contribute to the country’s digital transformation and inclusion for Ethiopians working with our partners. VMware Telco Cloud Platform will provide a robust platform for the deployment all network functions while also enabling flexibility as we scale and expand services.”

VMware Telco Cloud Platform enables service providers to rapidly deploy and efficiently operate multi-vendor CNFs and VNFs with agility and scalability across 5G and other networks that span from the core and the edge to the radio access network (RAN). Safaricom intends to deploy the platform across both its IT environments and telco network in Ethiopia.

Sanjay Uppal, Senior Vice President and General Manager, Service Provider & Edge, VMware, said, “This project is unique as Safaricom Ethiopia does not need to contend with legacy technology and architectures. It has an opportunity to build something special from the ground up. We’re honored to play an integral role in the creation of a network that will transform Ethiopia as we know it today.”

Additional Resources

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About Safaricom Telecommunication Ethiopia PLC

Safaricom Ethiopia is a purpose-led technology and communication company committed to contributing to Ethiopia’s digital transformation and inclusion agenda. The Global Partnership for Ethiopia, comprises of Safaricom Plc, Vodacom Group, Vodafone Group, Sumitomo Corporation and CDC Group, was awarded a license to operate telecom services in Ethiopia in July 2021, which registered Safaricom Telecommunications Ethiopia PLC.

About VMware

VMware is a leading provider of multi-cloud services for all apps, enabling digital innovation with enterprise control. As a trusted foundation to accelerate innovation, VMware software gives businesses the flexibility and choice they need to build the future. Headquartered in Palo Alto, California, VMware is committed to building a better future through the company’s 2030 Agenda. For more information, please visit www.vmware.com/company.

VMware and Telco Cloud Platform are registered trademarks or trademarks of VMware, Inc. or its subsidiaries in the United States and other jurisdictions.

View source version on businesswire.com: https://www.businesswire.com/news/home/20220227005087/en/

Contacts

Angela Leaf, VMware Global Communications, +1 860 480 3367, aleaf@vmware.com

Safaricom Media Relations: mediarelations@safaricom.et

Permalink : https://www.aetoswire.com/news/safaricom-taps-vmware-to-build-a-greenfield-network-in-ethiopia/en

Les cellules solaires à pérovskite font parler d’elles

Thuwal, Arabie saoudite-Lundi 28 Février 2022 [ AETOS Wire ]

Alors que les mégatendances mondiales du développement durable et de l'énergie propre influencent notre approche à l'égard des stratégies énergétiques vers un avenir plus écologique pour la planète, les technologies renouvelables telles que l'éolien et le solaire demeurent les principaux domaines de recherche à cet égard. Dans le domaine de la technologie des panneaux solaires, le secteur émergent des cellules solaires en pérovskite (PSC) a gagné en popularité au cours des quinze  dernières années.

Cependant, dans un domaine dominé par les cellules solaires au silicium, la technologie
relativement nouvelle des cellules solaires à pérovskite doit non seulement offrir des rendements de conversion de puissance élevée (PCE), mais également répondre à deux autres exigences cruciales pour être commercialisée avec succès : la stabilité et l'évolutivité.

Dans un article scientifique récemment publié, les chercheurs de l'Université des sciences et technologies du Roi Abdallah (KAUST) ont signalé un exploit remarquable grâce au tout premier test réussi de résistance à la chaleur humide de cellules solaires à pérovskite.

Le test de résistance à la chaleur humide est un essai de vieillissement environnemental accéléré et rigoureux visant à déterminer la capacité des panneaux solaires à résister à une exposition prolongée, à une forte pénétration d'humidité et à des températures élevées. Le test est exécuté pendant 1 000 heures dans un environnement contrôlé  de 85% d'humidité et de 85 degrés Celsius. Il est destiné à reproduire plusieurs années d'exposition à l'extérieur et à évaluer des facteurs tels que la corrosion et le délaminage.

Réussir  le test

La dureté du test est conforme aux exigences de commercialisation de la technologie photovoltaïque (PV) qui doit  couvrir 25 à 30 ans de garantie pour les modules conventionnels en silicium cristallin. Pour réussir le test, la cellule solaire doit conserver 95% de sa performance initiale.

Dirigées par Randi Azmi, stagiaire postdoctoral au laboratoire photovoltaïque KAUST de Stefaan De Wolf, les recherches devaient surmonter une faiblesse persistante des cellules solaires à pérovskite encapsulées pour empêcher les fuites d'emballage. Cette vulnérabilité des couches pérovskite tridimensionnelle est le catalyseur qui permet l'infiltration indésirable d'agents atmosphériques et offre une résistance limitée à la chaleur. La solution trouvée par les chercheurs de KAUST est l'ingénierie et l'introduction de couches de passivation pérovskite à double dimension pour améliorer simultanément les efficacités de conversion de l’énergie et la durée de vie des cellules solaires à pérovskite.

Les pérovskites peuvent-elles remplacer le silicium ?

La spécificité des pérovskites consiste en une technologie à couches minces. Comme c'est le cas avec les cellules solaires conventionnelles, deux contacts constitués de types de matériaux spécifiques sont toujours nécessaires. L'un collectera des électrons alors que la mission de l'autre est de recueillir des "trous" chargés positivement - qui représentent l'absence d'électrons. Mais, contrairement aux plaquettes de silicium, les pérovskites peuvent être déposées directement sur un substrat en verre, à l'aide d'une solution précurseur. La solution est fabriquée à l'aide d’un solvant qui se cristallise à l'état solide.

L'un des principaux  avantages est que les matériaux précurseurs peuvent être fabriqués sans avoir besoin d'installations coûteuses et d'environnements énergivores de plus de 1 000 degrés, ce qui est typique pour les semi-conducteurs plus traditionnels tels que le silicium.

"C'est un moyen très simple pour fabriquer des cellules solaires. En outre, si les propriétés optoélectroniques ne sont pas uniques, elles sont excellentes. Elles sont comparables à celles des semi-conducteurs traditionnels de très haute qualité. C'est assez remarquable", explique M. De Wolf. En modifiant la composition, il est également possible d'ajuster la sensibilité spectrale sur tout le spectre de la lumière solaire, de l'UV à l'infrarouge. Ceci est assez attractif pour certaines applications".

Le défi restant, après la performance et la stabilité, est la mise à l'échelle. La plupart des applications de cellules solaires se concentrent sur les secteurs à grande échelle ainsi que sur les panneaux de toiture.

"Le marché est basé sur le silicium, et il restera ainsi pendant au moins pour  les 20 prochaines années", a déclaré M. De Wolf. "Nous nous concentrons donc principalement sur l'amélioration de la performance des cellules solaires à pérovskites afin de développer des solutions 'tandem' plus efficaces associant à la fois le silicium traditionnel et les pérovskites, et selon lequel les découvertes actuelles aideront beaucoup à accroître la fiabilité de telles cellules solaires tandem pérovskites/silicium".

Le texte du communiqué issu d’une traduction ne doit d’aucune manière être considéré comme officiel. La seule version du communiqué qui fasse foi est celle du communiqué dans sa langue d’origine. La traduction devra toujours être confrontée au texte source, qui fera jurisprudence.

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Contacts

Najdat Boukarroum

Najdat.boukarroum@kaust.edu.sa

Permalink : https://www.aetoswire.com/fr/news/les-cellules-solaires-agrave-peacuterovskite-nbspfont-parler-drsquoelles/fr

Perovskite solar cells taking the heat

Thuwal, Saudi Arabia.-Monday 28 February 2022 [ AETOS Wire ]

As global sustainability and clean energy megatrends impact how we approach energy strategies toward a greener future for the planet, renewable technologies such as wind and
solar are leading areas of focus for research. In the solar technology space, the emerging field of perovskite solar cells (PSCs) has gained popularity within the last decade and a half.

However, in a field dominated by silicon solar cells, the relatively new technology of perovskite solar cells must besides offering high power conversion efficiencies (PCEs) also meet two other crucial requirements to be successfully commercialized: stability and scalability.

In a recently published Science paper, KAUST researchers have reported a significant milestone through the first-ever successful PV damp-heat test of PSCs.

The damp-heat test is an accelerated and rigorous environmental aging test aimed at determining the ability of solar panels to withstand prolonged exposure to high humidity penetration and elevated temperatures. The test is run for 1,000 hours under a controlled environment of 85% humidity and 85 degrees Celsius. It is meant to replicate multiple years of outdoor exposure and evaluate factors such as corrosion and delamination.

Passing the test

The harshness of the test is in line with commercialization requirements of photovoltaic (PV) technology needing to cover 25 to 30 years of warranty for conventional crystalline-silicon modules. In order to pass the test, the solar cell has to maintain 95% of its initial performance.

Led by Randi Azmi, a postdoctoral fellow in Stefaan De Wolf's KAUST Photovoltaics Laboratory, their research had to overcome an enduring weakness in encapsulated PSCs to prevent packaging leakage. This vulnerability of 3D perovskite films is what allows the unwanted infiltration of atmospheric agents and offers limited resilience against heat. The solution found by the KAUST researchers is the engineering and introduction of 2D-perovskite passivation layers to simultaneously enhance the power conversion efficiencies and lifetime PSCs.

Can perovskites replace silicon?

The specificity of perovskites is that it's a thin-film technology. As is the case with conventional solar cells, two contacts made of specific types of materials are still required. One will collect electrons and the other's function is to collect positively charged 'holes'—which represent the absence of electrons. But, unlike silicon wafers, perovskites can be coated directly on a glass substrate, using a precursor solution. The solution is made with a solvent that gets crystallized into a solid state.

One of the significant advantages is that precursor materials can be made without the need for expensive facilities and energy-intensive environments of over 1,000 degrees, which is typical for more traditional semiconductors such as silicon.

"It's a very simple way to make solar cells. Also, while the optoelectronic properties are not unique, they are excellent. They're on-par with very high-quality traditional semiconductors. That's quite remarkable," explains De Wolf. By altering the composition, it's also possible to tune the spectral sensitivity across the solar light spectrum from UV up to infrared. This is quite attractive for certain applications.

The remaining challenge, after performance and stability, is scaling. Most solar cell applications are focused on utility-scale sectors as well as rooftop panels.

"The market is silicon-based, and it will be silicon-based for the next 20 years at least," said De Wolf. “So we are mainly focused on improving the performance of perovskites solar cells in order to advance more efficient "tandem" solutions pairing both traditional silicon and perovskites, where the current findings will aid much in increasing the reliability of such perovskite/silicon tandem solar cells.” 

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Contacts

Najdat Boukarroum

Najdat.boukarroum@kaust.edu.sa

Permalink : https://www.aetoswire.com/news/perovskite-solar-cells-taking-the-heat/en

إل جي تطلق ثلاجة جديدة InstaView Side by Side في الخليج

  ثلاجات InstaView Side by Side من إل جي الجديدة تمتاز بالتصميم المثالي وتقنية الحفاظ على الطعام طازجاً

دبي، الإمارات العربية المتحدة-الاثنين 28 فبراير 2022 [ ايتوس واير ]

ستجلب إل جي إلكترونيكس (إل جي) ثلاجتها InstaView Side by Side المحدثة بشكل جميل إلى المنطقة الشهر المقبل. وتوفر الثلاجات الجديدة المزايا المتطورة والمحسنة مع الابتكارات المحدثة لتحسين تجربة المستخدم. وبفضل تصميمها المحسّن لتلبية احتياجات المستهلك اليوم بشكل أفضل، تعمل ثلاجات InstaView Side by Side الجديدة من "إل جي" على زيادة سعة التخزين والمساحة بكفاءة، لتأتي بتعريف جديد كلياً للثلاجات المثالية.

نافذة أوسع لسهولة الرؤية

تمتلك ثلاجات InstaView Side by Side الجديدة من "إل جي" التصميم السلس والمتكامل مع رؤية أوسع بنسبة 23%. ويستطيع المستهلكون الاستفادة من مساحة أكبر لتخزين مواد البقالة في ثلاجة رائعة ومليئة بالمزايا. وليس هناك ما هو أكثر راحةً من الحصول على المزيد من الطعام عند الحاجة إليه، وبمساحة كبيرة تبلغ 617 لتر، مما يتيح للمستهلكين مساحة إضافية لتعبئتها في ثلاجاتهم.

التصميم المحسّن والأسلوب المحدّث

يلتقي الابتكار والتصميم في ثلاجات InstaView Side by Side الجديدة من "إل جي" مما يؤدي إلى تحسين ديكور المطبخ. ويضيء اللوح الزجاجي الملون الأملس عبر نقرتين سريعتين، مما يتيح للمستخدمين رؤية ما بداخل حجرة الوصول السهل دون فتح باب الثلاجة على الإطلاق، ويقلل ذلك من فقدان الهواء البارد للمساعدة في الحفاظ على الطعام طازجاً لفترة أطول. علاوةً على ذلك، تحافظ الثلاجة على الطعام طازجاً بكفاءة من خلال نظام مجرى الهواء المتعدد والمصمم للحفاظ على مستويات مثالية من الرطوبة والحرارة وعلى الطعام طازجاً لفترات أطول من الوقت. وتراقب المستشعرات الرقمية الظروف داخل الثلاجة باستمرار وهناك فتحات موضوعة بشكل استراتيجي في كل قسم للمساعدة في إحاطة الطعام بالهواء البارد على الدوام بغض النظر عن مكان تخزينه في الثلاجة.

طعام طازج أكثر مع تقنية التبريد الذكي

تشمل ثلاجة InstaView Side by Side من "إل جي" العديد من الابتكارات كتقنية التبريد الذكي التي تتعامل بسرعة مع تقلبات درجات الحرارة وتساعد في الحفاظ على طعامكم طازجاً لمدة تصل لأكثر بمرتين من سابقه، بالإضافة إلى تقنية Door Cooling+ التي توفر دفعات من الهواء البارد في كافة مناطق الثلاجة. وتقوم آلة صنع الثلج الأوتوماتيكية بصنع مكعبات الثلج، لذلك سيكون الثلج في متناول اليد طوال أيام الصيف الحارة أو عند استضافة الضيوف في المنزل.

السعر والتوفر

ستتوفر ثلاجات InstaView Side by Side من "إل جي" عبر https://www.lg.com/ae_ar/refrigerators/lg-gr-x267cqes-gcc وفي متاجر التجزئة المختارة في دولة الإمارات وعُمان والبحرين وقطر خلال شهر مارس 2022.

لمحة عن شركة "إل جي للأجهزة المنزلية وحلول الهواء" 

تعد شركة "إل جي للأجهزة المنزلية وحلول الهواء" رائدة عالميًا في مجال الأجهزة المنزلية، وحلول المنزل الذكي، وأنظمة جودة الهواء، بالإضافة إلى المنتجات المبتكرة التي تتضمّن الذكاء الاصطناعي. وفيما تبتكر الشركة الحلول المتكاملة للمنزل عبر تقنياتها الأساسية الرائدة في السوق، تلتزم الشركة أيضًا بتوفير نوعية حياة أفضل للمستهلكين في جميع أنحاء العالم من خلال تطوير أدوات المطبخ المصممة بدقّة، والأجهزة المنزلية ومنتجات حلول الهواء. وتساهم هذه المنتجات مجتمعة في توفير الراحة، والأداء الفائق، والتشغيل الفعّال، إلى جانب الفوائد الصحية الكبيرة. لمزيد من المعلومات، يرجى زيارة www.LG.com 

Contacts

إل جي الكترونيكس - الخليج

لبنا خضر

lubna.alkhader@lge.com

إل جي ون

تسنيم فاخوري

Tasneem.fakhoury@lg-one.co

الرابط الثابت : https://www.aetoswire.com/ar/news/إل-جي-تطلق-ثلاجة-جديدة-instaview-side-by-side-في-الخليج/ar

LG TO LAUNCH INSTAVIEW SIDE BY SIDE REFRIDGERATOR IN THE GCC

  New LG InstaVview Side By Side Refrigerator Offers Impeccable Style with Proven Fresh Food Preserving Technology

DUBAI, United Arab Emirates-Monday 28 February 2022 [ AETOS Wire ]

LG Electronics (LG) will be bringing its beautifully modernized InstaView refrigerators to the region next month. Offering new and improved features with updated innovations to enhance the user’s experience. With a refined look to better meet the needs of today’s consumer, the new LG InstaView efficiently maximizes on storage and space, bringing an entire new definition to refrigerators.

Wider Window for Ease of View

LG’s new InstaView Side by Side refrigerators now incorporate a fully integrated seamless design with a 23% wider view. Consumers can enjoy more space for groceries in a great feature-packed refrigerator. Nothing is better than the convenience of having more food when you need it, and with a generous 617 liter of space, leaving consumers tons of space to navigate in their refrigerator.

Refined Design for an Updated Look and Feel

Where innovation meets design, LG’s new refrigerator InstaView Side by Side will enhance even the most beautifully crafted kitchen. The sleek tinted glass panel illuminates with two quick knocks, allowing users to see inside the easy access compartment without ever opening the door, reducing cold air loss to help keep food fresher longer. Moreover, the freshness is preserved efficiently through a multi-air flow freshness system that is designed to maintain superior humidity and temperature levels to help keep food fresher for longer periods of time. Digital sensors constantly monitor conditions within the refrigerator and strategically placed vents in every section to help surround food with constantly cool air no matter it’s storage location in the fridge.

Fresher Food with Smart Cooling

This LG InstaView Side by Side refrigerator is also packed with innovations like Smart Cooling which reacts quickly to temperature fluctuations and helps keep your food fresher up to 2X longer, as well as Door Cooling+, providing blasts of cool air to all areas of the fridge. The automatic ice maker makes ice cubes, so there is always ice on hand for those hot summer days or when entertaining at home.

Pricing and Availability

The LG InstaView will be available on https://www.lg.com/ae/refrigerators/lg-gr-x267cqes-gcc  and in specific retail stores across the UAE, Oman, Bahrain, and Qatar in March 2022.

About LG Electronics Home Appliance & Air Solution Company  

The LG Home Appliance & Air Solution Company is a global leader in home appliances, smart home solutions, air solutions as well as visionary products featuring LG ThinQ AI. The company is creating various solutions with its industry leading core technologies and is committed to making life better and healthier for consumers by developing thoughtfully designed kitchen appliances, living appliances, HVAC and air purification solutions. Together, these products deliver enhanced convenience, superb performance, efficient operation and compelling health benefits. For more news on LG, visit www.LGnewsroom.com. 

Contacts

LG-One      

Assele Kahwaji  

Email: Assele.Kahwaji@lg-one.com 

Permalink : https://www.aetoswire.com/news/lg-to-launch-instaview-side-by-side-refridgerator-in-the-gcc/en