{"id":241,"date":"2019-10-30T01:35:34","date_gmt":"2019-10-30T01:35:34","guid":{"rendered":"https:\/\/gpiq02dev.pnl.gov\/doc\/?page_id=241"},"modified":"2019-10-30T01:35:34","modified_gmt":"2019-10-30T01:35:34","slug":"es-efficiency","status":"publish","type":"page","link":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/technologies\/es\/es-efficiency\/","title":{"rendered":"Energy Storage System Efficiency"},"content":{"rendered":"\n<p>The round trip efficiency (RTE) of an energy storage system is defined as the ratio of the total energy output by the system to the total energy input to the system, as measured at the point of connection. The RTE varies widely for different storage technologies. A high value means that the incurred losses are low.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Reference Information<\/h2>\n\n\n\n<p>The typical RTE values for different technologies along with the source of information are provided below. If the reference provides a range of values instead of a single value, the median value of the range has been used.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Lithium-ion (83%)<\/strong>: W. G. Manuel, \u201cEnergy Storage Study 2014\u201d, 2014.<\/li><li><strong>Vanadium redox flow (75%)<\/strong>: V. Viswanathan, M. Kintner-Meyer, P. Balducci and C. Jin, \u201cNational Assessment of Energy Storage for Grid Balancing and Arbitrage, Phase II, Volume 2: Cost and Performance Characterization\u201d, Sept. 2013.<\/li><li><strong>Sodium sulfur (75%)<\/strong>: W. G. Manuel, \u201cEnergy Storage Study 2014\u201d, 2014.<\/li><li><strong>Advanced lead-acid (85%)<\/strong>: IEC, \u201cElectrical Energy Storage: White Paper\u201d, 2011.<\/li><li><strong>Flywheel (81%)<\/strong>: V. Viswanathan, M. Kintner-Meyer, P. Balducci and C. Jin, \u201cNational Assessment of Energy Storage for Grid Balancing and Arbitrage, Phase II, Volume 2: Cost and Performance Characterization\u201d, Sept. 2013.<\/li><li><strong>Compressed air (50%)<\/strong>: IEC, \u201cElectrical Energy Storage: White Paper\u201d, 2011.<\/li><li><strong>Pumped hydro (81%)<\/strong>: V. Viswanathan, M. Kintner-Meyer, P. Balducci and C. Jin, \u201cNational Assessment of Energy Storage for Grid Balancing and Arbitrage, Phase II, Volume 2: Cost and Performance Characterization\u201d, Sept. 2013.<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Reference Information The typical RTE values for different technologies along with the source of information are provided below. If the reference provides a range of values instead of a single value, the median value of the range has been used. Lithium-ion (83%): W. G. Manuel, \u201cEnergy Storage Study 2014\u201d, 2014. Vanadium redox flow (75%): V. &hellip; <a href=\"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/technologies\/es\/es-efficiency\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Energy Storage System Efficiency<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":187,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"class_list":["post-241","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/pages\/241"}],"collection":[{"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/comments?post=241"}],"version-history":[{"count":1,"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/pages\/241\/revisions"}],"predecessor-version":[{"id":242,"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/pages\/241\/revisions\/242"}],"up":[{"embeddable":true,"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/pages\/187"}],"wp:attachment":[{"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/media?parent=241"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gridpiq.pnnl.gov\/v2-beta\/doc\/wp-json\/wp\/v2\/tags?post=241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}