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Les projets de microgrids électriques peuvent être classés en fonction de leur taille, mais également de leur utilité (fiabilité, résilience et efficacité des réseaux, difficulté d’accès à l’énergie, conditions météorologiques dégradées, émergence d’éco-quartiers, réflexion multi-énergie, économies d’énergie, etc.) en 5 grandes catégories:
Les bénéfices de déploiement des microgrids sont nombreux :
En outre, les infrastructures nécessaires aux réseaux électriques intelligents étant complexes à mettre en place et pouvant prendre plusieurs années, les microgrids peuvent être considérés comme une alternative plus simple à mettre en œuvre. En reproduisant à petite échelle un grand nombre d’enjeux liés au déploiement des Smart grids et à l’intégration sur le réseau des énergies renouvelables, ils sont des démonstrateurs de ce que pourraient être de plus grands déploiements de Smart grids.
Cependant, les défis technico-économiques associés au déploiement de ces micro-réseaux sont aujourd’hui encore très nombreux. La gestion des microgrids et leur raccordement au réseau public de distribution est complexe:
Les fondamentaux socio-économiques
The France-based group said its has released two new BESSs with enclosures of 7ft and 20ft. Their power ranges from 60 kW to 500 kW.
Image: Schneider Electric
French multinational energy management company Schneider Electric has announced a new Battery Energy Storage System (BESS) for microgrids. It is available in two enclosure sizes and has different storage and discharge configurations.
“Comprised of a battery system, battery management system, power conversion system, and controller, BESS has been tested and validated to work as an integral component of Schneider Electric''s standardized microgrid system, EcoStruxure™ Microgrid Flex,” the company said in a statement. “It is fully integrated into the software suite, which includes EcoStruxure Microgrid Operation and EcoStruxure Microgrid Advisor.”
The BESS 7ft (2.1 m) long enclosure has a power of 60 kW or 90 kW and maximum storage of 246 kWh, with a discharge configuration of two or four hours. It weighs 3.6 metric tons, and it is AC and DC coupled. On the other hand, the BESS 20ft (6.06 m) long enclosure has a power of 250 kW, 375 kW, or 500 kW, and maximum storage of 1,720 kWh, with a discharge configuration of two or four hours. It weighs 25 metric tons, and it is AC coupled only.
“The BESS is a fully self-contained solution built upon a flexible, scalable, and highly-efficient architecture delivering flexibility, helping to minimize energy costs and maximize renewable energy,” the company added. “As part of a microgrid system, the BESS leverages onsite generation sources to optimize the entire system, delivering energy and cost savings while maximizing usage of renewables.”
Both enclosures use Lithium-Ion Iron Phosphate (LFP) batteries, which have a rated calendar life of 15-20 years and more than 6,000 cycles. The BESS''s operating temperature ranges from -20 C to 50 C, and Schneider Electric offers a three-year warranty.
This is wonderful, we really need this kind of technology, especially in our developing countries….keep it up Schneider.
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