{"id":1807,"date":"2022-09-08T20:39:38","date_gmt":"2022-09-08T17:39:38","guid":{"rendered":"https:\/\/solar-schools.org\/storage-technologies-for-renewable-energy-sources\/"},"modified":"2025-02-19T16:51:28","modified_gmt":"2025-02-19T13:51:28","slug":"storage-technologies-for-renewable-energy-sources","status":"publish","type":"post","link":"https:\/\/solar-schools.org\/de\/storage-technologies-for-renewable-energy-sources\/","title":{"rendered":"Speichersysteme f\u00fcr regenerativ erzeugte Energie"},"content":{"rendered":"<p>Erneuerbare Energiequellen wie Wind- oder Solarenergie sind instabil: Da der Wind nicht immer kr\u00e4ftig weht und die Sonne an manchen Tagen st\u00e4rker, an anderen schw\u00e4cher scheint (und nachts gar nicht), sind beide Energiequellen nur in Kombination mit intelligenten Speicherl\u00f6sungen kontinuierlich und zuverl\u00e4ssig nutzbar. Hierbei werden punktuelle Energie\u00fcbersch\u00fcsse f\u00fcr die Phasen aufgespart, in denen diese nicht erzeugt wird. Als Spitzenlast bezeichnet man eine hohe Stromnachfrage im Stromnetz, die \u00fcber einen kurzen Zeitraum auftritt. Der Ausgleich dieser unerwarteten Lastspitzen erfolgt durch Speichertechnologien, die schnell \u2013 teilweise sekundenschnell \u2013 verf\u00fcgbar sein m\u00fcssen.<\/p>\n<p>Dabei gibt es viele unterschiedliche Speichertechnologien: Eine davon ist die thermische Speicherung. Sie speichert W\u00e4rme und damit Energie, vor allem durch die Erw\u00e4rmung von Wasser. Dieses Verfahren wird vor allem in Privathaushalten zur kurzfristigen Speicherung von Photovoltaikenergie eingesetzt. Im industriellen Ma\u00dfstab gibt es weitere Ans\u00e4tze, bei denen andere Speichermaterialien wie Beton oder fl\u00fcssiges Salz zum Einsatz kommen. Neben thermischen Speichern gibt es f\u00fcr die Kurzzeitspeicherung in Kraftwerken auch elektrodynamische, elektrostatische und Schwungradspeicher. Zur Langzeitspeicherung kommen hingegen elektrochemische Speichersysteme wie Batterien oder Akkumulatoren sowie Pumpspeicher zum Einsatz. In den letzten Jahren wurde viel an Lithium-Batterien geforscht, um besonders leistungsf\u00e4hige mobile Speichersysteme f\u00fcr Hybridfahrzeuge oder Smartphones zu entwickeln. Aber auch an Batteriespeichern im Bereich der Netzst\u00fctzung wird derzeit viel geforscht. Dies liegt daran, dass in gro\u00dfen Stromnetzen gro\u00dfe Schwankungen bei Angebot und Nachfrage nach Elektrizit\u00e4t auftreten.<\/p>\n<p>Neben Batteriespeichertechnologien werden auch Druckluftspeicherkraftwerke zur Unterst\u00fctzung von Stromnetzen und zum Ausgleich von Stromspitzen eingesetzt. Das erste Kraftwerk dieser Art wurde bereits 1978 in Deutschland errichtet. Dabei wird Strom durch die Komprimierung von Luft in unterirdischen Kavernen gespeichert und bei Lastspitzen durch Erw\u00e4rmung und Entspannung der Luft in einer Gasturbine wieder freigesetzt. Im Normalbetrieb handelt es sich bei der Druckluftspeichertechnik um eine Hybridtechnologie, da Erdgas ben\u00f6tigt wird. Fortschrittlichere Technologien hingegen arbeiten mit einem zus\u00e4tzlichen W\u00e4rmespeicher ganzheitlich klimaschonend.<\/p>\n<p>Quelle:<\/p>\n<p>Dr. Rainer Tamme, \u201cSpeichertechnologien fu\u0308r erneuerbare Energien \u2013 Voraussetzung fu\u0308r eine nachhaltige Energieversorgung\u201d, in: FVS Themen (2006):<\/p>\n<p><a href=\"https:\/\/www.fvee.de\/fileadmin\/publikationen\/Themenhefte\/th2006\/th2006_03_03.pdf\">https:\/\/www.fvee.de\/fileadmin\/publikationen\/Themenhefte\/th2006\/th2006_03_03.pdf<\/a>, accessed: 3\/12\/2022 at 8:30 a.m.<\/p>\n<p><a href=\"https:\/\/www.enbw.com\/energie-entdecken\/verteilung-und-transport\/netzsteuerung\/\">https:\/\/www.enbw.com\/energie-entdecken\/verteilung-und-transport\/netzsteuerung\/<\/a>, accessed: 3\/12\/2022 at 9:30 a.m.<\/p>","protected":false},"excerpt":{"rendered":"<p>Renewable energy sources such as wind or solar energy are fluctuating: Since the wind does not blow constantly strong and the sun shines stronger on some days and less strong on others (and not at all at night), both energy sources can only be used continuously and reliably if they are coupled with intelligent storage [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1808,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-1807","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.0 - 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