{"id":18316,"date":"2024-03-19T09:16:14","date_gmt":"2024-03-19T01:16:14","guid":{"rendered":"https:\/\/battery9999.com\/en\/?p=18316"},"modified":"2024-03-19T09:16:14","modified_gmt":"2024-03-19T01:16:14","slug":"giant-sand-battery-holds-a-weeks-heat-for-a-whole-town-2","status":"publish","type":"post","link":"https:\/\/battery9999.com\/en\/giant-sand-battery-holds-a-weeks-heat-for-a-whole-town-2\/","title":{"rendered":"Giant ‘sand battery’ holds a week’s heat for a whole town"},"content":{"rendered":"

March 12, 2024<\/p>\n

\"\"<\/p>\n

A new industrial-scale ‘sand battery’ has been announced for Finland, which packs 1 MW of power and a capacity of up to 100 MWh of thermal energy for use during those cold polar winters. The new battery will be about 10 times bigger than a\u00a0pilot plant<\/a>\u00a0that\u2019s been running since 2022.<\/p>\n

The sand battery, developed by Polar Night Energy, is a clever concept. Basically, it\u2019s a big steel silo of sand (or a similar solid material) that\u2019s warmed up through a heat exchanger buried in the center, using excess electricity from the grid \u2013 say, that generated during a spike from renewable sources, when it\u2019s cheap.<\/p>\n

That energy can then be stored for months at a time, with reportedly very little loss, before being extracted as heat on demand. This could theoretically be converted back into electricity, although with some energy loss. But Polar Night says that the most efficient method is to just use the heat itself.<\/p>\n

In a chilly place like Finland, that means feeding it into the local district heating system, which shares heat produced from industry or energy production through the community. Networks of pipes carry this heat as hot water or steam to warm up houses, buildings, even swimming pools. In this case, the new sand battery would be trialed in the district heating system of the Finnish municipality of Pornainen, run by a company called Loviisan L\u00e4mp\u00f6.<\/p>\n

\n
\n
\n
\"Polar<\/div>
Polar Night Energy’s previous sand battery has been running since 2022<\/figcaption>
\n
Polar Night Energy<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/div>\n

This new sand battery is expected to stand 13 m (42.7 ft) tall and 15 m (49.2 ft) wide, providing an output power of 1 MW and a capacity of 100 MWh. That, the companies claim, equates to a week\u2019s worth of Pornainen\u2019s heat demands in winter, or a month\u2019s worth in summer. By comparison, Polar Night\u2019s previous sand battery stands 4 x 7 m (13 x 23 ft), for a nominal power rating of 100 kW and a capacity of 8 MWh.<\/p>\n

The new battery should also reduce the carbon dioxide emissions of the district heating system by 160 tonnes per year, translating to an almost 70% reduction. The sand itself will also be sustainably sourced \u2013 it\u2019ll consist of crushed soapstone, which is a manufacturing byproduct of another local industry. This material can apparently conduct heat even better than regular old sand.<\/p>\n

While sand batteries might not find wide outside of areas that use district heating, they could still be one useful tool in a climate change toolbox that needs to be as diverse as possible. Sand batteries might join other grid-scale storage options like\u00a0lithium-ion<\/a>,\u00a0gravity<\/a>,\u00a0molten salt<\/a>,\u00a0iron-air<\/a>\u00a0or\u00a0flow batteries<\/a>.<\/p>\n

Polar Night Energy says the new sand battery will complete construction and testing in about 13 months.<\/p>\n

Source:Giant ‘sand battery’ holds a week’s heat for a whole town (newatlas.com)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

March 12, 2024<\/p>\n","protected":false},"author":12,"featured_media":18310,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-18316","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"yoast_head":"\nGiant 'sand battery' holds a week's heat for a whole town - \u660c\u8467\u80a1\u4efd\u6709\u9650\u516c\u53f8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/battery9999.com\/en\/giant-sand-battery-holds-a-weeks-heat-for-a-whole-town-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Giant 'sand battery' holds a week's heat for a whole town - \u660c\u8467\u80a1\u4efd\u6709\u9650\u516c\u53f8\" \/>\n<meta property=\"og:description\" content=\"March 12, 2024\" \/>\n<meta property=\"og:url\" content=\"https:\/\/battery9999.com\/en\/giant-sand-battery-holds-a-weeks-heat-for-a-whole-town-2\/\" \/>\n<meta property=\"og:site_name\" content=\"\u660c\u8467\u80a1\u4efd\u6709\u9650\u516c\u53f8\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-19T01:16:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/battery9999.com\/wp-content\/uploads\/2024\/03\/2024-03-19_091015.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"545\" \/>\n\t<meta property=\"og:image:height\" content=\"355\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"DPC\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DPC\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/battery9999.com\/en\/giant-sand-battery-holds-a-weeks-heat-for-a-whole-town-2\/\",\"url\":\"https:\/\/battery9999.com\/en\/giant-sand-battery-holds-a-weeks-heat-for-a-whole-town-2\/\",\"name\":\"Giant 'sand battery' holds a week's heat for a whole town - 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