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Smart Grid: The Central Nervous System for Power Supply

Abstract

Im Energiesystem der Zukunft wird ein intelligentes Netz (Smart Grid) Angebot und Nachfrage effizient steuern. Dieser Artikel beschreibt (1) die Trends und Herausforderungen heutiger Ener-giesysteme, die die Entwicklung eines Smart Grid auslösen, identifiziert (2) Elemente eines Smart Grid und stellt (3) die mögliche Rolle eines Telekommunkationsunternehmes im entste-henden Smart Grid Markt dar. Der Trend zu einem steigenden Anteil erneuerbarer und dezentraler Energieerzeugungsanlagen bringt zwei große Herausforderungen mit sich: Eine mangelnde Vorhersagbarkeit und eine man-gelnde Regelbarkeit der Erzeugungsleistung. In diesem Artikel werden vier Elemente eines Smart Grid vorgestellt, die diese Herausforderungen adressieren: Virtuelle Kraftwerke, Demand Side Management, Lastflussregelung und Energiespeicherung. Abschließend wird herausgestellt, dass die Elemente systemisch integiert werden müssen um den eigentlichen Wert des Smart Grid zu heben. Es wird erörtert, dass sich Telekommunkiationsan-bieter in einer guten Ausgangsposition befinden um die Herausforderungen dieser Integration zu adressieren, da sie über wesentliche Erfahrungen und Fähigkeiten verfügen: Umfassendes Ver-ständnis großer IP-Netzwerke, Erfahrungen mit Cloud Computing, umfangreiches Wissen zu Service-Plattformen und Kooperationserfahrung. Online-Version im Universitätsverlag der TU Berlin (www.univerlag.tu-berlin.de) erschienen.
... Thus, the more prudent strategy is not to invest in the sustainable innovation opportunity. In this article we present and discuss an approach where multiple firms have worked together to identify, describe and evaluate business models in the field of smart energy, i.e. in integrated and partly automated management of the supply side, the demand side and the transportation of energy (Knab, Strunz, & Lehmann, 2010). ...
... The German energy sector is changing due to liberalization, a pressure from the public for more sustainability, new legislation and emerging technologies (Bouffard & Kirschen, 2008). These changes will lead to a market that is more flexible, fast changing and highly dependent on the collaboration of different companies along the value chain (Knab et al., 2010). However, most energy utilities lack organizational structures and processes that allow them to respond effectively to a rapidly changing environment (van Dinther, Weidlich, & Block, 2006). ...
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Chapter
Nachhaltigkeitsinnovationen zeichnen sich häufig durch einen systemischen Charakter aus, so dass deren Entwicklung ein koordiniertes Vorgehen mehrerer Akteure erfordert. Um gemeinsam Chancen für systemische Nachhaltigkeitsinnovationen zu erkennen, sie zu planen und umzusetzen, werden neue kooperative Methoden und Ansätze benötigt. Insbesondere für die Entwicklung der Energiewirtschaft hin zu einer nachhaltigen Energieversorgung sind systemische Innovationen von großer Bedeutung. Die Integration eines schnell wachsenden Anteils erneuerbarer Energien und dezentraler Erzeugungsanlagen stellt Energieversorgungsunternehmen (EVU) vor Herausforderungen, die sie nicht alleine lösen können. Moderne Informations- und Kommunikationstechnologien (IKT) werden zur effizienten Steuerung verteilter Erzeugungsanlagen und Verbraucher und zur Koordinierung zahlreicher Marktakteure benötigt. Die Entwicklung intelligenter Energiesysteme („Smart Energy“) eröffnet aber auch Chancen für die Erweiterung der Geschäftstätigkeit von EVU. Hierzu werden neue Geschäftsmodelle benötigt. In diesem Beitrag stellen wir unseren Ansatz der kooperativen Geschäftsmodellentwicklung (KGE) vor. Wir wenden die KGE in einer Fallstudie an, bei der acht Unternehmen kooperiert haben, um neue Geschäftsmodelle für die Energiewirtschaft zu entwickeln. Nach der Darstellung unseres Ansatzes diskutieren wir seine Stärken und Limitationen und vergleichen ihn mit zwei alternativen Methoden der Strategie- und Innovationsplanung, der Szenariotechnik und dem Roadmapping. Es zeigt sich, dass die KGE gut geeignet ist um 1. potentiellen wirtschaftlichen und gesellschaftlichen Nutzen zu identifizieren, 2. kooperative Wertschöpfungsarchitekturen zu entwickeln, 3. in komplexen und unsicheren Märkten zu planen und 4. die Umsetzung neuer Geschäftsmodelle vorzubereiten.
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Full-text available
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The aim of the work is the integration of combined heat and power (CHP) micro-units into the low voltage network under technical and economical point of view. As a result of the legal conditions and the trend of the energy prices the number of CHP micro-units will increase in the next years in Germany. Therefore the power supplier must know the technical and economic effects of this technology by a high penetration. Together with the local grid operator "Power Nets Braunschweig" the whole power and gas consumption of a new residential district are measured and recorded in fifteen minutes intervals during one Year. Based on these power and gas load curves an analysis has been carried out of the technical effects of a high penetration of the low voltage network with CHP micro-units. A result is that the technical effects are within the technical limits. But now it is interesting to know how the power supplier can integrate the CHP micro-units into his business area.
Article
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  • E Hanse
E.ON Hanse 2010. Website: http://www.eon-hanse.com/pages/eha_de/Engagement/ Hybridkraftwerk_Pellworm/index.htm, last access: 03/16/2010. ESA 2009. Electricity Storage Association; Website: http://www.electricitystorage.org/ site/home/, last access: 03/16/2010.
Potenziale der Informations-und Kommunikationstechnologien zur Optimierung der Energieversorgung und der Energieverbrauchs (eEnergy)
  • Franz
Franz et al. 2006. "Potenziale der Informations-und Kommunikationstechnologien zur Optimierung der Energieversorgung und der Energieverbrauchs (eEnergy)" Study for the Federal Ministry of Economics and Technology (Bundesministerium für Wirschaft und Technologie -BMWi), wik-consult, FhG Verbund Energie, Bad Honnef (D).