--- title: Amsterdam startup Ore Energy raises $43 million to build... description: Amsterdam-based Ore Energy has raised $43 million in Series A funding to scale iron-air battery technology capable of storing renewable electricity for up to... canonical: https://daily.dev/posts/amsterdam-startup-ore-energy-raises-43-million-to-build-iron-air-batteries-that-store-power-for-day-ijocgsmfo twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Amsterdam startup Ore Energy raises $43 million to build iron-air batteries that store power for days | daily.dev og:description: Amsterdam-based Ore Energy has raised $43 million in Series A funding to scale iron-air battery technology capable of storing renewable electricity for up to... og:url: https://daily.dev/posts/amsterdam-startup-ore-energy-raises-43-million-to-build-iron-air-batteries-that-store-power-for-day-ijocgsmfo og:image: https://api.daily.dev/og/posts/iJocGSMfO.png og:image:alt: Amsterdam startup Ore Energy raises $43 million to build iron-air batteries that store power for days og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Amsterdam startup Ore Energy raises $43 million to build iron-air batteries that store power for days **[The Next Web](https://daily.dev/sources/tnw)** · 3 min read · 0 upvotes · 0 comments ## Summary Amsterdam-based Ore Energy has raised $43 million in Series A funding to scale iron-air battery technology capable of storing renewable electricity for up to 100 hours. The batteries use a reversible rusting/unrusting reaction with iron, water, and air — requiring no critical materials like lithium or cobalt — and can be built through a fully European supply chain. Founded in 2023 as a TU Delft spinout, the company has already secured a 1 GWh deal with Dutch supplier Budget Thuis, the largest iron-air storage agreement in continental Europe. Ore Energy plans to use the funds to build its first manufacturing facility, targeting gigawatt-hour-scale production by 2028. The company positions its technology as a solution for multi-day renewable energy storage gaps and as infrastructure for AI-era data centres with volatile power demands. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How much funding did Ore Energy raise in its Series A round? Ore Energy raised $43 million in Series A funding, led by Plural and HV with participation from Positron Ventures. This brings the Amsterdam-based startup's total funding to $61 million. The company plans to use the capital to build its first manufacturing facility ahead of a gigawatt-hour-scale production target set for 2028. _daily.dev surfaces funding rounds like this for developers tracking climate tech and energy infrastructure investment._ ### How long can iron-air batteries store energy compared to lithium-ion batteries? Iron-air batteries from Ore Energy can store renewable electricity for up to 100 hours, compared to lithium-ion batteries which typically cover only a few hours of gap. This makes them suited for bridging the multi-day mismatch between renewable generation and grid demand caused by calm or cloudy periods, reducing wasted curtailed power. _engineers evaluating long-duration storage options can follow chemistry comparisons like this on daily.dev._ ### What deal has Ore Energy signed for its iron-air battery deployment? Ore Energy signed a 1 GWh deal with Budget Thuis, a Dutch energy and telecoms supplier, marking the largest iron-air storage agreement in continental Europe. The first phase, covering 400 megawatt hours, is planned for delivery in 2028, as the company targets gigawatt hour-scale manufacturing that same year. _daily.dev helps engineers follow how grid storage deployments like this one progress toward delivery._ ## Similar posts on daily.dev - [Form Energy raises $750M to build more 100-hour batteries for the grid](https://daily.dev/posts/form-energy-raises-750m-to-build-more-100-hour-batteries-for-the-grid-ade6h8wv1) · TechCrunch · 0 upvotes · 0 comments - [Research roundup: Six cool science stories we almost missed](https://daily.dev/posts/research-roundup-six-cool-science-stories-we-almost-missed-uxqjpn2fi) · Ars Technica · 0 upvotes · 0 comments - [The Download: aluminium’s potential as a zero-carbon fuel, and what’s next for energy storage](https://daily.dev/posts/the-download-aluminium-s-potential-as-a-zero-carbon-fuel-and-what-s-next-for-energy-storage-cmhf9rg8z) · MIT Technology Review · 0 upvotes · 0 comments - [CO2 Batteries That Store Grid Energy Take Off Globally](https://daily.dev/posts/co2-batteries-that-store-grid-energy-take-off-globally-msn5sxc05) · Hacker News · 1 upvotes · 0 comments --- Tags: [#startup](https://daily.dev/tags/startup) [View this post on daily.dev](https://daily.dev/posts/amsterdam-startup-ore-energy-raises-43-million-to-build-iron-air-batteries-that-store-power-for-day-ijocgsmfo) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Amsterdam startup Ore Energy raises $43 million to build iron-air batteries that store power for days","url":"https://daily.dev/posts/amsterdam-startup-ore-energy-raises-43-million-to-build-iron-air-batteries-that-store-power-for-day-ijocgsmfo","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/amsterdam-startup-ore-energy-raises-43-million-to-build-iron-air-batteries-that-store-power-for-day-ijocgsmfo"},"datePublished":"2026-08-04T18:28:00.572Z","dateModified":"2026-09-14T08:55:44.619Z","description":"Amsterdam-based Ore Energy has raised $43 million in Series A funding to scale iron-air battery technology capable of storing renewable electricity for up to...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/736c3eb702060ccf77b222f438c071f6?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/736c3eb702060ccf77b222f438c071f6?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"The Next Web","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"The Next Web","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/tnw","url":"https://daily.dev/sources/tnw"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/amsterdam-startup-ore-energy-raises-43-million-to-build-iron-air-batteries-that-store-power-for-day-ijocgsmfo","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"startup","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"The Next Web","item":"https://daily.dev/sources/tnw"},{"@type":"ListItem","position":3,"name":"Amsterdam startup Ore Energy raises $43 million to build iron-air batteries that store power for days"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/amsterdam-startup-ore-energy-raises-43-million-to-build-iron-air-batteries-that-store-power-for-day-ijocgsmfo#faq","mainEntity":[{"@type":"Question","name":"How much funding did Ore Energy raise in its Series A round?","acceptedAnswer":{"@type":"Answer","text":"Ore Energy raised $43 million in Series A funding, led by Plural and HV with participation from Positron Ventures. 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