{"id":18872,"date":"2022-10-18T11:14:51","date_gmt":"2022-10-18T01:14:51","guid":{"rendered":"https:\/\/www.originenergy.com.au\/blog\/?p=18872"},"modified":"2023-11-28T11:03:58","modified_gmt":"2023-11-28T01:03:58","slug":"why-do-renewables-need-backup","status":"publish","type":"post","link":"https:\/\/www.originenergy.com.au\/blog\/why-do-renewables-need-backup\/","title":{"rendered":"Why do renewables need&nbsp;backup?"},"content":{"rendered":"\n<p class=\"is-style-lead\">Battery storage is key to unlocking the energy grid of the future. It will provide us with backup power when we need it and help to manage variations in renewable energy \u2013 when the sun isn\u2019t shining or the wind isn\u2019t blowing. Basically, batteries store excess renewable generation from the daytime that\u2019s otherwise wasted. As they say: use it, lose it, or store it. &nbsp;<\/p>\n\n\n\n<p>AAs, AAAs, Lithium-ion\u2026 You\u2019re probably familiar with these. And if you have an elaborate <a href=\"https:\/\/www.originenergy.com.au\/blog\/tips-to-get-your-christmas-lights-right\/\">Christmas lights display<\/a> planned, you might even already be stashing away <a href=\"https:\/\/www.originenergy.com.au\/solar\/batteries\/\">batteries<\/a>. Or maybe that\u2019s just what one-half of our <a href=\"https:\/\/www.originenergy.com.au\/about\/investors-media\/media-centre\/podcasts\/\">So Watt? podcast<\/a> hosting duo is guilty of (nudge, nudge Dom Fay). \u202f&nbsp;<\/p>\n\n\n\n<p>Anyway, what we\u2019re getting at is hoarding AA batteries won\u2019t cut it. As we <a href=\"https:\/\/www.originenergy.com.au\/blog\/what-will-the-energy-transition-look-like\/\">increase renewables<\/a> in the energy grid, we need to increase <a href=\"https:\/\/www.originenergy.com.au\/solar\/batteries\/\">battery storage<\/a> across Australia to capture excess renewable energy generated during the day so we can use it later when needed.&nbsp;&nbsp;<\/p>\n\n\n\n<p>And this is what we\u2019re exploring in So Watt? \u2013 a podcast about energy hosted by Dom Fay and Zach Mander from <a href=\"https:\/\/www.instagram.com\/zachanddom\/\" rel=\"nofollow noopener\" target=\"_blank\">Collective Noun<\/a>. We\u2019re looking at <a href=\"https:\/\/www.originenergy.com.au\/blog\/what-will-the-energy-transition-look-like\/\">the transition<\/a> to a cleaner energy system, powered predominantly by renewables. So, where does <a href=\"https:\/\/www.originenergy.com.au\/blog\/how-large-scale-batteries-support-renewables\/\">big battery power<\/a> come in? Tune into episode four below or read on to find out.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<iframe style=\"border-radius:12px\" src=\"https:\/\/open.spotify.com\/embed\/episode\/6aR2BDjmVMI4RN5H8uzIjL?utm_source=generator&amp;theme=0\" width=\"100%\" height=\"152\" frameborder=\"0\" allowfullscreen=\"\" allow=\"autoplay; clipboard-write; encrypted-media; fullscreen; picture-in-picture\" loading=\"lazy\"><\/iframe>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">That&#8217;s a lot of water<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.originenergy.com.au\/solar\/batteries\/\">Batteries<\/a> (of all sizes) are vital to the future of <a href=\"https:\/\/www.originenergy.com.au\/blog\/an-intelligent-grid\/\">our energy grid<\/a>, and so is some other mature technology: <a href=\"https:\/\/www.originenergy.com.au\/blog\/what-is-hydropower\/\">pumped hydro<\/a>. Interestingly, hydro-pump isn\u2019t just a great Pok\u00e9mon move\u2026 hydro pumps use water to spin a turbine, which spins a generator to produce electricity. And over at our Shoalhaven Hydro Power Station in NSW, 50 million litres of water an hour is moved. To put that into perspective, a standard Olympic swimming pool is about 2.5 million litres &#8211; that\u2019s an Olympic swimming pool worth of water every three minutes! And all this activity at maximum capacity can generate 240 megawatts. &nbsp;<\/p>\n\n\n\n<p>The water reservoir at the top of a hydro plant basically acts like a <a href=\"https:\/\/www.originenergy.com.au\/about\/investors-media\/eraring-battery-receives-nsw-government-approval\/\">giant battery<\/a>, waiting to be released to generate energy. And that is why it remains vital for the energy grid of the future, despite being an older technology. And that\u2019s why we\u2019re looking at <a href=\"https:\/\/www.originenergy.com.au\/about\/who-we-are\/what-we-do\/generation\/shoalhaven-proposed-expansion\/\">expanding Shoalhaven<\/a> to double its capacity.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What about lithium-ion batteries?<\/h2>\n\n\n\n<p>While pumped hydro is an important part in the <a href=\"https:\/\/www.originenergy.com.au\/blog\/what-will-the-energy-transition-look-like\/\">renewable energy transition<\/a>, it\u2019s not a complete solution to our storage and backup needs. <a href=\"https:\/\/www.originenergy.com.au\/solar\/batteries\/\">Batteries<\/a> (the lithium-ion kind) are also a key part of <a href=\"https:\/\/www.originenergy.com.au\/blog\/what-will-the-energy-transition-look-like\/\">Australia\u2019s future energy mix<\/a>. In fact, batteries and pumped hydro are complementary. And while batteries are getting bigger, they run between one to four hours, pumped hydro can be used for longer-term storage, like days at a time.&nbsp;<\/p>\n\n\n\n<p>Another important difference is that batteries last up to 20 years before they need to be recycled, but a pumped hydro system could last hundreds of years.&nbsp;<\/p>\n\n\n\n<p>The speed to rollout <a href=\"https:\/\/www.originenergy.com.au\/solar\/batteries\/\">batteries<\/a> is one of the key reasons there are so many <a href=\"https:\/\/www.originenergy.com.au\/blog\/how-large-scale-batteries-support-renewables\/\">big battery projects<\/a> being talked about globally. Plus, lithium batteries can be built almost anywhere, whereas hydro power facilities need to be built in mountainous areas and can take decades to build.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">At home<\/h2>\n\n\n\n<p>All these <a href=\"https:\/\/www.originenergy.com.au\/blog\/how-large-scale-batteries-support-renewables\/\">big battery projects<\/a>, and the <a href=\"https:\/\/www.originenergy.com.au\/blog\/origin-360-ev-wins-nsw-government-funding-boost\/\">rollout of EVs<\/a>, will likely bring down the cost of batteries for everyone. In fact, most of us will eventually own batteries in some form, either <a href=\"https:\/\/www.originenergy.com.au\/solar\/batteries\/\">home batteries<\/a> or within an <a href=\"https:\/\/www.originenergy.com.au\/blog\/whats-the-real-cost-of-an-ev\/\">EV<\/a>. There are even <a href=\"https:\/\/www.originenergy.com.au\/blog\/whats-the-real-cost-of-an-ev\/\">EVs<\/a> hitting the market now that not only function as a car, but can also power your home, or feed power into the grid when it\u2019s needed \u2013 known as Vehicle-To-Grid, or Vehicle-To-Home.&nbsp;&nbsp;<\/p>\n\n\n\n<p>Lithium batteries are a great short-term solution to stabilising our energy grid, but in the long-term we\u2019ll need bigger projects like pumped hydro to provide constant energy to help keep the lights on. They&#8217;re a perfect match, and we need both as we <a href=\"https:\/\/www.originenergy.com.au\/blog\/what-will-the-energy-transition-look-like\/\">transition to renewables<\/a>.&nbsp;&nbsp;<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-1 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.originenergy.com.au\/about\/investors-media\/media-centre\/podcasts\/\">Find out more about So Watt?<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><em>Hosts, Zach and Dom from\u00a0<a href=\"https:\/\/www.instagram.com\/zachanddom\/\" rel=\"nofollow noopener\" target=\"_blank\">Collective Noun<\/a>\u00a0admit they know nothing about energy \u2013 but not for long! Origin\u2019s\u00a0<a href=\"https:\/\/open.spotify.com\/show\/2cmDgnbcFRK1kFZWxITSM8\" rel=\"nofollow noopener\" target=\"_blank\">So Watt? podcast<\/a>\u00a0questions everything you thought you knew about energy, and explores the solutions that exist today. In season two of So Watt?, go on a journey with Zach and Dom to find out more about\u00a0<a href=\"https:\/\/www.originenergy.com.au\/blog\/what-will-the-energy-transition-look-like\/\">the transition to renewables<\/a>, what changes are already happening and what\u2019s coming up.\u00a0<\/em>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>With the uptake in renewables, battery storage will play an important role in the energy transition. But why exactly do renewables need backing&nbsp;up?<\/p>\n","protected":false},"featured_media":18873,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[108],"tags":[125,45,29],"oe_author":[],"class_list":["post-18872","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-future-energy","tag-generation","tag-renewable-energy","tag-solar-batteries"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/posts\/18872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/users\/38"}],"replies":[{"embeddable":true,"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/comments?post=18872"}],"version-history":[{"count":0,"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/posts\/18872\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/media\/18873"}],"wp:attachment":[{"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/media?parent=18872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/categories?post=18872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/tags?post=18872"},{"taxonomy":"oe_author","embeddable":true,"href":"https:\/\/www.originenergy.com.au\/blog\/wp-json\/wp\/v2\/oe_author?post=18872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}