{"id":14262,"date":"2025-11-25T14:50:25","date_gmt":"2025-11-25T19:50:25","guid":{"rendered":"https:\/\/www.ecoportal.net\/en\/?p=14262"},"modified":"2026-06-29T07:34:57","modified_gmt":"2026-06-29T11:34:57","slug":"20-mw-of-power-behind-this-white-dome","status":"publish","type":"post","link":"https:\/\/www.ecoportal.net\/en\/20-mw-of-power-behind-this-white-dome\/14262\/","title":{"rendered":"20 MW white dome in Sardinia stores power with CO\u2082 instead of lithium or rare metals"},"content":{"rendered":"

A dome that’s capable of storing power could represent a new frontier for clean energy. It’s strange, as this device runs on something you wouldn’t expect. Not coal, but something else that the world is trying so desperately to steer away from. It is a storage system that experts believe can outlast any other<\/strong>, and it has exciting potential for the energy sector.<\/p>\n

A dome-shaped energy storage solution that has a yield potential of 20 MW of power<\/h2>\n

Energy Dome has developed this enterprising project. It clocks in at 20 megawatts, with enough capacity to hold 200 megawatt-hours. Sure, it looks simple from the outside\u2014a big dome, nothing fancy.<\/p>\n

They’re calling this a CO\u2082 battery. Yes, you read that correctly. A power storage system that uses carbon dioxide<\/strong>. It’s a new take on backup storage for those inconvenient moments when wind or solar power fails.<\/p>\n

How this white-domed CO\u2082 battery tackles a long-standing issue<\/h3>\n

Power storage that isn’t short-term has been an issue for a while. Lithium batteries do work, but not without issues of their own. Things like high costs, extensive mining, and a temperamental life span. Hydrogen is still an enticing prospect, but it does have some drawbacks of its own.<\/p>\n

The hunt for viable alternatives is heating up, and this CO\u2082 battery could be the answer. This strange-looking white dome sitting on the island of Sardinia could really change a lot of conversations in the energy world.<\/p>\n

How does this CO\u2082 battery in Sardinia work, and will we see it reach the mainstream market?<\/h2>\n

It’s a smart system that uses surplus energy to compress carbon dioxide<\/a><\/strong>, turning this into a liquid. When the power that is made is needed, the liquid CO\u2082 warms up, expands, and spins a turbine. This CO\u2082 battery doesn’t require any rare metals, and no circumspect supply chains are leaned on either.<\/p>\n

Just basic thermodynamics, using technology that’s already out there. It’s a daring battery storage system<\/a> that could have abundant benefits.<\/p>\n

What the successes of this CO\u2082 battery could mean for Sardinia<\/h2>\n

Sardinia has been trying hard to move away from fossil fuels and build up more reliable, cleaner energy alternatives.<\/p>\n

Doing that without large storage is not a viable option. This CO\u2082 battery promises up to 10 hours of power<\/strong> on tap. This is more than enough to last through the night or through periods when renewables slump.<\/p>\n

Why should this battery matter to anyone beyond the borders of Sardinia?<\/h3>\n

The idea of a CO\u2082 battery storage system was deemed a little too daring not so long ago. More of an experimental approach than one that had any real-world functionality. Now, this idea is garnering financial backing from commercial partners and energy companies across Europe.<\/p>\n

The costs are manageable because this system doesn’t depend on lithium or cobalt. This will probably cause a stir in energy markets. All that is needed is CO\u2082, tanks made of steel, and compressors<\/strong>. The scrimmage for battery minerals could be avoided entirely.<\/p>\n

If this CO\u2082 battery proves to be a viable option, then hydrogen won’t be the only focal point in power storage. This white dome might appear to be modest, but the numbers are hard to overlook. The design is built to last decades and yields twenty megawatts in two hundred megawatt-hours stored. That’s rather impressive.<\/p>\n

If this works, then the approach will undoubtedly be replicated in other countries<\/a>. A failure would be quite a publicized affair, but it does seem promising so far. The dome-shaped energy storage solution<\/strong> could pave a new path towards power storage, and the world will wait with bated breath to see if this works out.<\/p>\n","protected":false},"excerpt":{"rendered":"

A dome that’s capable of storing power could represent a new frontier for clean energy. It’s strange, as this device runs on something you wouldn’t expect. Not coal, but something else that the world is trying so desperately to steer away from. It is a storage system that experts believe can outlast any other, and … Read more<\/a><\/p>\n","protected":false},"author":20,"featured_media":14265,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_focus_keyword":"dome, energy, battery, energy storage, sardinia","rank_math_title":"","rank_math_description":"A strange white dome could represent a new frontier for clean energy. They\u2019re calling this a CO\u2082 battery designed to be the perfect backup storage.","footnotes":""},"categories":[8],"tags":[],"class_list":["post-14262","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energy"],"_links":{"self":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/14262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/comments?post=14262"}],"version-history":[{"count":0,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/14262\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media\/14265"}],"wp:attachment":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media?parent=14262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/categories?post=14262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/tags?post=14262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}