Großtechnische, wirtschaftliche und effiziente untertägige Energiespeicher

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

Der Umbau der Energiebereitstellung mit überwiegender Nutzung erneuerbarer Energien ist auf Energiespeicher und physikalische Vernetzung der Energieinfrastruktur angewiesen. Die Speicher sind Schlüsselkomponenten, welche die Schwankungen zwischen Energiebedarf und Energieerzeugung ausgleichen. Effiziente Pumpspeicherkraftwerke erfüllen diese Anforderungen; geeignete Speicherstandorte sind jedoch nur begrenzt verfügbar. Darüber hinaus ist der Speicherausbau in ökologisch sensiblen Hochtälern immer schwieriger realisierbar. Die für Triebwassersysteme und Krafthäuser gängige untertägige Bauweise soll auf die gesamte Kraftwerksanlage inklusive den Speicherbauwerken ausgeweitet werden. Vollständig unterirdisch errichtete, tiefliegende, nicht an natürliche Gegebenheiten gebundene Kraftwerksbauten können für sehr große Fallhöhen und gleichzeitig reduzierte Wasservolumina ausgelegt werden. Der geschlossene Wasserkreislauf gewährleistet maximale Umweltverträglichkeit und unabhängigen Betrieb gegenüber äußeren Einflüssen. Die Nähe zu urbanen Gebieten erleichtert Bauvorhaben durch vorhandene Infrastruktur und sichert die Anbindung an bestehende Energienetze. Die Kombination von Pumpspeichern mit saisonalen thermischen Energiespeichern führt die hydraulische Energiespeicherung in ein neues Zeitalter und sichert die bedarfsgerechte und sektorenübergreifende Energieversorgung.
Titel in ÜbersetzungGroßtechnische, wirtschaftliche und effiziente untertägige Energiespeicher
Originalspracheenglisch
Seiten (von - bis)251 - 269
Seitenumfang19
FachzeitschriftGeomechanics and Tunnelling
Jahrgang12
Ausgabenummer3
DOIs
PublikationsstatusVeröffentlicht - 7 Jun 2019

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Energy storage
Economics
economics
underground storage
infrastructure
cavern
Environmental protection
Thermal energy
Water
power plant
Power plants
environmental protection
energetics
urban area
Hydraulics
energy storage
hydraulics
valley
water
resource

Schlagwörter

  • Pumpspeicherkraftwerke
  • Unterirdische Pumpspeicherkraftwerke
  • Energiespeicherung
  • thermal energy storage
  • renewable energy
  • energy storage
  • electricity storage
  • Innovative procedures/Test techniques
  • Caverns
  • Hydro power plants

ASJC Scopus subject areas

  • !!Building and Construction
  • !!Geotechnical Engineering and Engineering Geology
  • !!Civil and Structural Engineering

Fields of Expertise

  • Sustainable Systems

Dies zitieren

Large-scale, economic and efficient underground energy storage. / Pikl, Franz Georg; Richter, Wolfgang; Zenz, Gerald.

in: Geomechanics and Tunnelling , Jahrgang 12, Nr. 3, 07.06.2019, S. 251 - 269.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

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abstract = "The conversion of the energy supply system towards renewable technologies is indispensable for climate and environmental protection. With the predominant use of inexhaustible but fluctuating renewable energy sources, energy storage capacities and physical networks are key infrastructure for sustainable functionality. Efficient pumped-storage hydropower can meet these demands. However, suitable sites for conventional surface reservoirs are facing natural limits, and new storage capacities in ecologically sensitive mountainous valleys are increasingly difficult to license. To gap these aspects this article reflects the construction of fully underground pumped-storage hydropower plants to cover multipurpose energy storage requirements. Thus, the surface reservoirs are substituted by underground storage caverns with less water volume required by equivalent energy storage capacity since high heads are utilized. Proximity to urban areas improves the construction and operation through various infrastructure and close connection to existing power grids, power plants and consumers. Valuable surface resources remain untouched and the closed water cycle ensures a constant storage volume and independent operation against external influences. Furthermore pumped-storage is combined with seasonal underground thermal energy storage. This system leads the well-proven hydraulic energy storage technology into a new energetic age and ensures the demand-based and cross-sectoral renewable energy supply.",
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