{"id":31332,"date":"2019-06-24T15:06:57","date_gmt":"2019-06-24T04:36:57","guid":{"rendered":"https:\/\/www.solarquotes.com.au\/blog\/?p=31332"},"modified":"2026-04-24T12:38:19","modified_gmt":"2026-04-24T03:08:19","slug":"solar-battery-testing-standard","status":"publish","type":"post","link":"https:\/\/www.solarquotes.com.au\/blog\/solar-battery-testing-standard\/","title":{"rendered":"Australian Standard For Battery Testing Gets Closer"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter wp-image-31351 size-full\" src=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/battery-testing-standard.jpg\" alt=\"Australian Standard for solar battery testing\" width=\"600\" height=\"314\" srcset=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/battery-testing-standard.jpg 600w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/battery-testing-standard-300x157.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Out of my twenty-four 2V, 1200AH batteries, one has developed a fault and is dragging on the whole system. It would be a simple warranty claim except that I have to get the battery tested, and where I live nobody has the equipment needed.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As a result of my battery discussions with my installer, I was very interested to learn that a solar battery performance standard is under development; so last Thursday (June 20), I joined a webinar hosted by the Smart Energy Council briefing the industry on its progress.<\/span><!--more--><\/p>\n<p><span style=\"font-weight: 400;\">As is so often the case with standards, it will still be some time before the final document is ratified &#8211; but the industry is very close to having a usable document while Standards Australia goes through its formal processes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Explaining the draft standard, which was completed at the end of May 2019, CSIRO Energy\u2019s Dr Anand Bhatt and DNV GL Australia\u2019s Felix Liebrich told the briefing that Australia\u2019s progress toward battery performance reporting standards makes us an international front runner.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The standard will apply to batteries connected to domestic and small commercial solar power systems, covering total system sizes up to 100 kW \/ 200 kWh.<\/span><\/p>\n<h2>Making It Easy To Compare Battery Data Sheets<\/h2>\n<p><span style=\"font-weight: 400;\">The aim of the standard isn\u2019t to prescribe the behaviour of the batteries themselves &#8211; there are already too many different chemistries and designs in the market for that &#8211; but to put the testing and documentation of solar batteries on an equal footing. That way, we in the industry &#8211; most particularly, retailers and installers &#8211; will be able to read spec sheets on a like-for-like basis, making it easy to <a href=\"https:\/\/www.solarquotes.com.au\/battery-storage\/comparison-table\/#compare\">compare solar batteries<\/a> and give end users the best possible advice.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">That can be difficult as things now stand. Manufacturers self-report battery performance, not always using the same parameters, making such comparisons difficult and complex.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As shown on DNV GL\u2019s <\/span><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.dnvgl.com\/cases\/australian-battery-performance-testing-standard-project-abps-project--143069\"> project page<\/a>, that involves a lot of different systems: data might be reported at the cell level, the whole battery level, the DC system level, and the AC system level &#8211; with a variety of sub-modules involved in each of these.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As well as making sure solar battery manufacturers report a consistent set of parameters, Liebrich told the briefing the standard will also mean those running battery tests &#8211; which may be wholesalers and independent test labs as well as manufacturers &#8211; can know what tests they need to carry out.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As Dr Bhatt told the meeting, <\/span> <span style=\"font-weight: 400;\">lead-acid battery lifetimes might be between 180 discharge cycles and 8,000 cycles, depending on measurement setup; while lithium-ion lifetimes can be reported as between 2,000 and 8,000 cycles.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-31350 size-full\" src=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/Battery-standard-model.png\" alt=\"Battery energy storage system - BESS\" width=\"798\" height=\"509\" srcset=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/Battery-standard-model.png 798w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/Battery-standard-model-300x191.png 300w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/Battery-standard-model-768x490.png 768w\" sizes=\"(max-width: 798px) 100vw, 798px\" \/><\/p>\n<h2>Manufacturers Gaming Battery Performance Figures<\/h2>\n<p><span style=\"font-weight: 400;\">Dr Bhatt said there has been evidence of manufacturers \u201cgaming\u201d how battery performance is reported. For example, lifetime is discharge dependent &#8211; a solar battery that never suffers more than 5% discharge will deliver a much better lifetime than if the tester punishes the battery with a full discharge on each cycle.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Capacity tests are another target for the standard, Dr Bhatt said: \u201cWhen we ask for a capacity rating, we want to know the time taken and the currents used\u201d, he said &#8211; again to stop makers from gaming the system. \u201cThe tests are designed to provide usable numbers, estimates of efficiency losses \u2026 we\u2019re trying to remove that sort of gaming.\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The standard will also cover how manufacturers specify the temperature range a solar battery is intended to operate in &#8211; but the far extremes of temperatures that could be seen in a climate-changed Australia won\u2019t be covered. For example, operation when the mercury hits 52\u00b0C is already far outside any battery manufacturer\u2019s warranty range.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">That said, the standard covers four regional temperature averages for four seasons, to be as predictive as possible across the whole country.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-31348 size-full\" src=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/CSIRO-battery-evaluation-models.png\" alt=\"How to evaluate solar battery performance\" width=\"935\" height=\"585\" srcset=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/CSIRO-battery-evaluation-models.png 935w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/CSIRO-battery-evaluation-models-300x188.png 300w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/CSIRO-battery-evaluation-models-768x481.png 768w\" sizes=\"(max-width: 935px) 100vw, 935px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-31349 size-full\" src=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/CSIRO-battery-reporting-framework.png\" alt=\"Reporting framework being constructed\" width=\"936\" height=\"610\" srcset=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/CSIRO-battery-reporting-framework.png 936w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/CSIRO-battery-reporting-framework-300x196.png 300w, https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/CSIRO-battery-reporting-framework-768x501.png 768w\" sizes=\"(max-width: 936px) 100vw, 936px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">The standards experts combed through hundreds of documents as the basis of their work, and identified many gaps in current international frameworks, so there are many more variables in the proposed standard\u2019s electrical profile. It includes maximum power and sustained power (kW), stored energy (kWh), capacity (AH), voltage and current limits, C-rate (the maximum allowable discharge rate), efficiency, cycle number, and response time.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The two user profiles currently under consideration in the standard are today\u2019s default solar-with-battery profile (battery stores energy from PV, discharges during morning and evening periods); and the \u201cvirtual power plant\u201d (VPP) profile, in which the battery is managed by the VPP when it\u2019s not being used by the owner.<\/span><\/p>\n<h2>Where to now?<\/h2>\n<p><span style=\"font-weight: 400;\">When the project concludes in May 2020, the formalisation of the standard &#8211; that is, its ratification by Standards Australia &#8211; will commence. In the meantime, the project participants hope the draft standard will be adopted as widely as possible.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The CSIRO is due to publish battery testing pathways as soon as possible. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you\u2019d like to take in the webinar in full, the Smart Energy Council has it <\/span><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.smartenergy.org.au\/news\/australian-battery-performance-standard-project-update\" target=\"_blank\" rel=\"noopener noreferrer\">here<\/a>, along with the full set of slides.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The standardisation project is funded by ARENA and the Victorian state government, and as well as CSIRO and DNV GL, participants include the Smart Energy Council and Deakin University.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">And my problem? The standard will arrive too late to help, and while \u201cwarranty reporting\u201d isn\u2019t directly mentioned in the reporting framework, I\u2019d hope that the industry can pluck out suitable parameters resellers can test in-place, so I don\u2019t have to manhandle the battery out of the system and into my car to take to a test centre!<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Out of my twenty-four 2V, 1200AH batteries, one has developed a fault and is dragging on the whole system. It would be a simple warranty claim except that I have to get the battery tested, and where I live nobody has the equipment needed. As a result of my battery discussions with my installer, I [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":31351,"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":[551],"tags":[],"class_list":["post-31332","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-battery-storage","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Australian Standard For Battery Testing Gets Closer<\/title>\n<meta name=\"description\" content=\"Q. How do you compare solar battery data sheets when there&#039;s no standard for the tests that give rise to battery specifications? A. Have standardised tests!\" \/>\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\/solar-battery-testing-standard\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Australian Standard For Battery Testing Gets Closer\" \/>\n<meta property=\"og:description\" content=\"Q. How do you compare solar battery data sheets when there&#039;s no standard for the tests that give rise to battery specifications? A. Have standardised tests!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.solarquotes.com.au\/blog\/solar-battery-testing-standard\/\" \/>\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=\"2019-06-24T04:36:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-24T03:08:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2019\/06\/battery-testing-standard.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"314\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Richard Chirgwin\" \/>\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\\\/solar-battery-testing-standard\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/solar-battery-testing-standard\\\/\"},\"author\":{\"name\":\"Richard Chirgwin\",\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/#\\\/schema\\\/person\\\/d2e4d6f75c9033945224b9de834d9be6\"},\"headline\":\"Australian Standard For Battery Testing Gets Closer\",\"datePublished\":\"2019-06-24T04:36:57+00:00\",\"dateModified\":\"2026-04-24T03:08:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/solar-battery-testing-standard\\\/\"},\"wordCount\":927,\"commentCount\":5,\"publisher\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/solar-battery-testing-standard\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/battery-testing-standard.jpg\",\"articleSection\":[\"Battery Storage\"],\"inLanguage\":\"en-AU\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/solar-battery-testing-standard\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/solar-battery-testing-standard\\\/\",\"url\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/solar-battery-testing-standard\\\/\",\"name\":\"Australian Standard For Battery Testing Gets Closer\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/solar-battery-testing-standard\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/solar-battery-testing-standard\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/battery-testing-standard.jpg\",\"datePublished\":\"2019-06-24T04:36:57+00:00\",\"dateModified\":\"2026-04-24T03:08:19+00:00\",\"description\":\"Q. 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When not writing for us, he runs a solar-powered off-grid eco-resort in NSW\u2019s blue mountains. Read Richard's full bio.\",\"url\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/author\\\/rchirgwin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Australian Standard For Battery Testing Gets Closer","description":"Q. How do you compare solar battery data sheets when there's no standard for the tests that give rise to battery specifications? A. Have standardised tests!","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.solarquotes.com.au\/blog\/solar-battery-testing-standard\/","og_locale":"en_US","og_type":"article","og_title":"Australian Standard For Battery Testing Gets Closer","og_description":"Q. 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How do you compare solar battery data sheets when there's no standard for the tests that give rise to battery specifications? A. 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