{"id":51153,"date":"2021-06-15T06:41:34","date_gmt":"2021-06-14T20:11:34","guid":{"rendered":"https:\/\/www.solarquotes.com.au\/blog\/?p=51153"},"modified":"2021-06-15T06:41:34","modified_gmt":"2021-06-14T20:11:34","slug":"flywheel-storage-school-mb2036","status":"publish","type":"post","link":"https:\/\/www.solarquotes.com.au\/blog\/flywheel-storage-school-mb2036\/","title":{"rendered":"Australian School Spins Up Flywheel Energy Storage System"},"content":{"rendered":"<p><img decoding=\"async\" class=\"alignnone size-full wp-image-51156\" src=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/flywheel-energy-storage.jpg\" alt=\"Flywheel energy storage\" width=\"1200\" height=\"630\" srcset=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/flywheel-energy-storage.jpg 1200w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/flywheel-energy-storage-300x158.jpg 300w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/flywheel-energy-storage-1024x538.jpg 1024w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/flywheel-energy-storage-768x403.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>Mechanical battery storage solutions provider Key Energy recently installed a flywheel energy storage system for a school in New South Wales.<!--more--><\/p>\n<p><a href=\"https:\/\/www.as.edu.au\/\">The Armidale School<\/a>, located as the name suggests in <a href=\"https:\/\/www.solarquotes.com.au\/location\/armidale-2350-nsw\/\">Armidale<\/a>, was\u00a0 founded in 1894. It&#8217;s a co-ed boarding school with a current enrolment of more than 640 students, including over 200 boarders.<\/p>\n<p>Among its many facilities is a creative arts precinct incorporating a 240-seat performance theatre, a music centre, a heated indoor 25 metre swimming pool, gymnasium, seven sporting ovals (one under lights), rifle range, basketball courts and seven tennis courts.<\/p>\n<p>In other words, the school&#8217;s energy bills would be eye-watering.<\/p>\n<p>The school has already headed down the renewable energy path through installing solar power and a battery system. Its latest project involves a different type of storage &#8211; flywheels.<\/p>\n<h2>What Is A Flywheel Energy Storage System?<\/h2>\n<p>The flywheel used in this application is essentially a mechanical battery consisting of a mass rotating around an axis in a vacuum, levitated by a magnet and riding on special bearings that minimises frictional losses. The mass is rotated to very high speeds (9,000 RPM) using an electric motor.<\/p>\n<p>Once the system has reached the desired RPM, it takes very little energy to keep it at that speed. When energy needs to be extracted, the motor becomes a generator. Basically, electrical energy is converted to kinetic energy and converted back to electrical energy when required.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-51161 aligncenter\" src=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/amber-kinetics-kess-2.jpg\" alt=\"Amber Kinetics KESS\" width=\"431\" height=\"470\" srcset=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/amber-kinetics-kess-2.jpg 431w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/amber-kinetics-kess-2-275x300.jpg 275w\" sizes=\"(max-width: 431px) 100vw, 431px\" \/><\/p>\n<p>Some of the advantages of flywheel energy storage systems is they are low maintenance, there&#8217;s no fire risk, they have a claimed service life of 20 &#8211; 30 years and can be easily recycled.<\/p>\n<p><a href=\"https:\/\/key.energy\/\">Key Energy<\/a> has installed <span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">four flywheel systems at <\/span>The Armidale School <span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">that have been buried underground. Each unit offers 32 kilowatt-hours capacity for a total of 128kWh. The devices used were manufactured by California-based <a href=\"https:\/\/amberkinetics.com\/\">Amber Kinetics<\/a>, which describes its Kinetic Energy Storage Solution (KESS) as being:<\/span><\/p>\n<blockquote><p><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">&#8220;..the first commercialized four-hour discharge, long-duration KESS solution powered by advanced technology that stores 32 kWh of energy in a two-ton steel rotor.&#8221;<\/span><\/p><\/blockquote>\n<p><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">.. so, 8kW of power per unit. That two-ton mention is just the rotor &#8211; the entire assembly weighs 10,500 lbs, or around 4.76 tonnes. That&#8217;s incredibly heavy for what appears to be a very compact setup. Amber Kinetics claims an &gt;86% round trip efficiency (DC), and a life of 11,000 cycles for its KESS.<\/span><\/p>\n<p>More <span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">solar panels were installed as part of the project in addition to the KESS, bringing the school&#8217;s total solar capacity to 145kW.<\/span><\/p>\n<p><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">There&#8217;s nothing mentioned on its website, but according to <a href=\"https:\/\/www.armidaleexpress.com.au\/story\/7287526\/local-school-to-pioneer-energy-transfer-technology-in-australia\/\">The Armidale Express<\/a>, the school also has a large conventional battery system in place &#8211; a lithium-cobalt-manganese unit (brand not mentioned) with around 270 kilowatt-hours of storage.\u00a0<\/span><\/p>\n<p><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">The school says the project is not just about generating more energy, but storing it more efficiently and then distributing it more evenly. Flywheel storage was chosen based on five years of usage data.<\/span><\/p>\n<blockquote><p><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">&#8220;As a large boarding school with energy needs that vary around the clock, the system&#8217;s prime function is to remove the regular spikes in our grid electricity consumption which cost us very expensive network capacity penalties each month,&#8221; <a href=\"https:\/\/www.facebook.com\/TASarmidale\/posts\/4061115190632670\">said the school<\/a>.<\/span><\/p><\/blockquote>\n<p><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v knj5qynh oo9gr5id hzawbc8m\" dir=\"auto\">As for what the flywheel systems + additional solar power capacity cost isn&#8217;t mentioned, but the project is expected to pay for itself with savings within five years.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mechanical battery storage solutions provider Key Energy recently installed a flywheel energy storage system for a school in New South Wales.<\/p>\n","protected":false},"author":17,"featured_media":51156,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[678],"tags":[],"class_list":["post-51153","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solar-battery-news","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Australian School Spins Up Flywheel Energy Storage System<\/title>\n<meta name=\"description\" content=\"Mechanical battery storage solutions provider Key Energy recently installed a flywheel energy storage system for a school in New South Wales.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.solarquotes.com.au\/blog\/flywheel-storage-school-mb2036\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Australian School Spins Up Flywheel Energy Storage System\" \/>\n<meta property=\"og:description\" content=\"Mechanical battery storage solutions provider Key Energy recently installed a flywheel energy storage system for a school in New South Wales.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.solarquotes.com.au\/blog\/flywheel-storage-school-mb2036\/\" \/>\n<meta property=\"og:site_name\" content=\"SolarQuotes Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SolarQuotes\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-06-14T20:11:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/flywheel-energy-storage.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Michael Bloch\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@solar_quotes\" \/>\n<meta name=\"twitter:site\" content=\"@solar_quotes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.solarquotes.com.au\/blog\/flywheel-storage-school-mb2036\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.solarquotes.com.au\/blog\/flywheel-storage-school-mb2036\/\"},\"author\":{\"name\":\"Michael Bloch\",\"@id\":\"https:\/\/www.solarquotes.com.au\/blog\/#\/schema\/person\/66afd571aa00c2e442f0192ebac2f6f1\"},\"headline\":\"Australian School Spins Up Flywheel Energy Storage System\",\"datePublished\":\"2021-06-14T20:11:34+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.solarquotes.com.au\/blog\/flywheel-storage-school-mb2036\/\"},\"wordCount\":554,\"commentCount\":26,\"publisher\":{\"@id\":\"https:\/\/www.solarquotes.com.au\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.solarquotes.com.au\/blog\/flywheel-storage-school-mb2036\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2021\/06\/flywheel-energy-storage.jpg\",\"articleSection\":[\"General Solar &amp; 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