{"id":17868,"date":"2025-07-24T06:25:11","date_gmt":"2025-07-24T06:25:11","guid":{"rendered":"https:\/\/www.newsbeep.com\/au\/17868\/"},"modified":"2025-07-24T06:25:11","modified_gmt":"2025-07-24T06:25:11","slug":"volatility-within-the-contingency-fcas-market-in-sa-today-thursday-24th-july-2025","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/au\/17868\/","title":{"rendered":"Volatility within the contingency FCAS market in SA today, Thursday 24th July 2025"},"content":{"rendered":"<p>We got one of our first glimpses of the <a href=\"https:\/\/wattclarity.com.au\/articles\/2025\/07\/market-price-cap-increases-to-20300-mwh-from-today-1st-july-2025\/\" rel=\"nofollow noopener\" target=\"_blank\">new market price cap<\/a> in action today, with prices for the \u2018Lower 1 Second\u2019 contingency FCAS commodity in South Australia flickering between the FCAS price floor ($0\/Mwh) and the market price cap ($20,300\/MWh).<\/p>\n<p>This volatility kicked off shortly after 11:00am (NEM time) this morning. This screenshot below was taken at 2:55pm NEM time this afternoon, and shows the price outcomes for the \u2018Lower 1 Second\u2019 commodity throughout today, and also shows the P5 price forecast for the next six intervals.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-40782\" src=\"https:\/\/www.newsbeep.com\/au\/wp-content\/uploads\/2025\/07\/2025-07-24b-fcas-lower-1-sec-sa.jpg\" alt=\"\" width=\"600\" height=\"1313\"  \/><\/p>\n<p style=\"text-align: center;\">Source: ez2view\u2019s Trading Prices widget<\/p>\n<p>Earlier in the week <a href=\"https:\/\/wattclarity.com.au\/articles\/2025\/07\/a-quick-view-into-constraints-on-the-sa-vic-interconnector-on-tuesday-22nd-july-2025\/\" rel=\"nofollow noopener\" target=\"_blank\">we noted the invocation of the \u2018I-HYSE\u2019 constraint set<\/a>, due to an outage on the 275kV Heywood-South-East transmission line (forming part of the SA-VIC interconnector), and warned of energy and FCAS price risk due to these limitations on the Heywoood interconnector.<\/p>\n<p>That outage concluded yesterday evening, but I note that the \u2018S-TBTU\u2019 constraint set has been invoked since 8am this morning, and is scheduled to conclude at 5:30pm NEM time this afternoon. That constraint set is invoked due to an outage on the 275kV Tailem Bend-Tungkillo line (which also forms part of the SA-VIC interconnector). This set contains several constraint equations that change the FCAS requirements for each contingency commodity \u2014 limiting procurement to within SA, or in this case, procurement from parts of the SA region west of the outage) due to risks if the region became islanded.<\/p>\n<p>The screenshot below shows our constraint equation dashboard widget from within ez2view \u2014 showing the \u2018F_S+TBTU_L1\u2019 equation (within the \u2018S-TBTU\u2019 set) binding throughout today. It also shows the P5 and P30 forecasted values for this equation, for the next three hours ahead.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-40783\" src=\"https:\/\/www.newsbeep.com\/au\/wp-content\/uploads\/2025\/07\/2025-07-24-constraint-dashboard.jpg\" alt=\"\" width=\"950\" height=\"629\"  \/><\/p>\n<p style=\"text-align: center;\">Source: ez2view\u2019s Constraint Equation Dashboard widget<\/p>\n","protected":false},"excerpt":{"rendered":"We got one of our first glimpses of the new market price cap in action today, with prices&hellip;\n","protected":false},"author":2,"featured_media":17869,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[64,63,99,171],"class_list":{"0":"post-17868","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-markets","8":"tag-au","9":"tag-australia","10":"tag-business","11":"tag-markets"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/17868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/comments?post=17868"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/17868\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media\/17869"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media?parent=17868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/categories?post=17868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/tags?post=17868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}