{"id":13852,"date":"2022-01-18T09:07:04","date_gmt":"2022-01-18T01:07:04","guid":{"rendered":"https:\/\/battery9999.com\/en\/?p=13852"},"modified":"2022-01-18T09:07:04","modified_gmt":"2022-01-18T01:07:04","slug":"ocean-battery-stores-renewable-energy-at-the-bottom-of-the-sea","status":"publish","type":"post","link":"https:\/\/battery9999.com\/en\/ocean-battery-stores-renewable-energy-at-the-bottom-of-the-sea\/","title":{"rendered":"Ocean Battery stores renewable energy at the bottom of the sea"},"content":{"rendered":"
\n
By\u00a0<\/span>Michael Irving\u00a0 January 09, 2022<\/div>\n
\"\"<\/div>\n<\/div>\n

<\/p>\n

As useful as renewable energy sources are, they need to be backed up by storage systems that hold energy for times when the Sun isn\u2019t shining or the wind isn\u2019t blowing. Ocean Battery is a new design for an energy storage system that functions a bit like a hydroelectric dam at the bottom of the sea.<\/p>\n

Developed by Dutch startup Ocean Grazer, the Ocean Battery is designed to be installed on the seafloor near offshore\u00a0renewable energy generators<\/a>, like\u00a0wind turbines<\/a>,\u00a0floating solar farms<\/a>,\u00a0tidal<\/a>\u00a0and\u00a0wave energy<\/a>\u00a0systems. It is made up of three components that together function on a principle similar to that of a hydro dam.<\/p>\n

Buried in the seabed is a concrete reservoir that holds up to 20 million liters (5.3 million gal) of fresh water, stored at low pressure. A system of pumps and turbines connects this reservoir to a flexible bladder on the seafloor. Excess electricity from the renewable sources can be used to pump water from the reservoir into the bladder. When the energy is needed, the bladder releases and, driven by the pressure of the seawater above it, squeezes its water back down to the reservoir, spinning turbines on the way to generate electricity that\u2019s fed out into the grid.<\/p>\n

\n
\n
\"A<\/picture><\/a>
A diagram of the Ocean Battery system. When charged (left), the bladder is full of water and the concrete reservoir is empty. When the battery is discharged (right), the bladder is empty and the reservoir full.<\/figcaption>
\n
Ocean Grazer<\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/div>\n

The Ocean Grazer team says that the system has an efficiency of between 70 and 80 percent, and should be able to run an unlimited number of cycles over an operation lifetime of more than 20 years. It\u2019s also fairly scalable \u2013 each concrete reservoir has a capacity of 10 MWh, so adding more of these can increase the overall capacity. Extra units of the pump and turbine machinery can also be added to boost the power output, if more energy is needed quickly.<\/p>\n

The Ocean Battery concept is intriguing, but it\u2019s far from the only ocean battery design in the works.\u00a0Subhydro<\/a>\u00a0outlined a similar idea to pump seawater out of tanks placed at the bottom of the sea, then when electricity is needed the water is let it back in, spinning turbines as it fills the tank. MIT also described a similar concept using\u00a0hollow concrete spheres<\/a>. Another\u00a0recent design<\/a>\u00a0worked off buoyancy, using electricity to drag and hold balloon-like containers underwater, then releasing them to generate electricity.<\/p>\n

Still, there\u2019s not going to be one solution that suits every situation, so solving a global problem like renewable energy storage is likely going to take a whole army of these different, creative ideas.<\/p>\n

Source:Ocean Battery stores renewable energy at the bottom of the sea (newatlas.com)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

By\u00a0Michael Irving\u00a0 January 09, 2022<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113],"tags":[],"class_list":["post-13852","post","type-post","status-publish","format-standard","hentry","category-industrial-news"],"yoast_head":"\nOcean Battery stores renewable energy at the bottom of the sea - \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\/ocean-battery-stores-renewable-energy-at-the-bottom-of-the-sea\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ocean Battery stores renewable energy at the bottom of the sea - \u660c\u8467\u80a1\u4efd\u6709\u9650\u516c\u53f8\" \/>\n<meta property=\"og:description\" content=\"By\u00a0Michael Irving\u00a0 January 09, 2022\" \/>\n<meta property=\"og:url\" content=\"https:\/\/battery9999.com\/en\/ocean-battery-stores-renewable-energy-at-the-bottom-of-the-sea\/\" \/>\n<meta property=\"og:site_name\" content=\"\u660c\u8467\u80a1\u4efd\u6709\u9650\u516c\u53f8\" \/>\n<meta property=\"article:published_time\" content=\"2022-01-18T01:07:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/battery9999.com\/wp-content\/uploads\/2022\/01\/Ocean-Battery-Burried-cutout-1024x576-624x351.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"624\" \/>\n\t<meta property=\"og:image:height\" content=\"351\" \/>\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\/ocean-battery-stores-renewable-energy-at-the-bottom-of-the-sea\/\",\"url\":\"https:\/\/battery9999.com\/en\/ocean-battery-stores-renewable-energy-at-the-bottom-of-the-sea\/\",\"name\":\"Ocean Battery stores renewable energy at the bottom of the sea - 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