--- title: Turning a solar power system into its own backup | daily.dev description: A small company is promising a concentrated solar power design that shares most of its generating hardware with a fossil-fueled backup system. Concentrated... canonical: https://daily.dev/posts/turning-a-solar-power-system-into-its-own-backup-dpvrc2wqg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Turning a solar power system into its own backup | daily.dev og:description: A small company is promising a concentrated solar power design that shares most of its generating hardware with a fossil-fueled backup system. Concentrated... og:url: https://daily.dev/posts/turning-a-solar-power-system-into-its-own-backup-dpvrc2wqg og:image: https://api.daily.dev/og/posts/DPvRC2wQg.png og:image:alt: Turning a solar power system into its own backup 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. # Turning a solar power system into its own backup **[Ars Technica](https://daily.dev/sources/arstechnica)** · 2 min read · 0 upvotes · 0 comments ## Summary A small company is promising a concentrated solar power design that shares most of its generating hardware with a fossil-fueled backup system. Concentrated solar uses mirrors called heliostats to focus sunlight onto a tower, heating a working fluid that drives a steam turbine or gets stored for overnight power. Photovoltaic panels became the cheapest power source in most locations, and concentrated solar costs have not come close to keeping pace with them. The design shares most of its generating hardware with the solar side. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What is concentrated solar power and how does it generate electricity overnight? Concentrated solar power, or solar thermal, uses mirrors called heliostats to focus sunlight onto a tower where it heats a working fluid. That heated fluid can directly drive a steam turbine, or its heat can be stored for use generating power overnight, enabling around-the-clock electricity without photovoltaic panels or batteries. _Developers tracking energy tech trends can follow solar thermal design shifts on daily.dev._ ### Why hasn't concentrated solar power kept pace with photovoltaic solar panels on cost? Concentrated solar plants have many moving parts, potentially corrosive working fluids, and a lack of standardization across competing designs like towers versus trough-shaped mirrors. These issues kept costs from falling as fast as photovoltaics, which plunged in price and became the cheapest power source in most locations, even though concentrated solar costs had fallen enough to compete with nuclear power. _Anyone comparing energy generation technologies can keep up with cost trends like these on daily.dev._ ## Similar posts on daily.dev - [Solar power is becoming bigger than nuclear](https://daily.dev/posts/solar-power-is-becoming-bigger-than-nuclear-b8l40jtry) · Hacker News · 0 upvotes · 0 comments - [Sam Atlman-backed Exowatt wants to power AI data centers with billions of hot rocks](https://daily.dev/posts/sam-atlman-backed-exowatt-wants-to-power-ai-data-centers-with-billions-of-hot-rocks-hcg0nck4y) · TechCrunch · 1 upvotes · 0 comments - [Storing Solar Energy As Ice For Air Conditioning](https://daily.dev/posts/storing-solar-energy-as-ice-for-air-conditioning-xv2j5swou) · Hackaday · 0 upvotes · 0 comments - [The Top 7 Energy Stories of 2025](https://daily.dev/posts/the-top-7-energy-stories-of-2025-el4xekspa) · IEEE Spectrum · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/turning-a-solar-power-system-into-its-own-backup-dpvrc2wqg) ```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":"Turning a solar power system into its own backup","url":"https://daily.dev/posts/turning-a-solar-power-system-into-its-own-backup-dpvrc2wqg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/turning-a-solar-power-system-into-its-own-backup-dpvrc2wqg"},"datePublished":"2026-10-29T18:40:08.304Z","dateModified":"2026-10-29T18:42:55.720Z","description":"A small company is promising a concentrated solar power design that shares most of its generating hardware with a fossil-fueled backup system. 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That heated fluid can directly drive a steam turbine, or its heat can be stored for use generating power overnight, enabling around-the-clock electricity without photovoltaic panels or batteries. Developers tracking energy tech trends can follow solar thermal design shifts on daily.dev."}},{"@type":"Question","name":"Why hasn't concentrated solar power kept pace with photovoltaic solar panels on cost?","acceptedAnswer":{"@type":"Answer","text":"Concentrated solar plants have many moving parts, potentially corrosive working fluids, and a lack of standardization across competing designs like towers versus trough-shaped mirrors. These issues kept costs from falling as fast as photovoltaics, which plunged in price and became the cheapest power source in most locations, even though concentrated solar costs had fallen enough to compete with nuclear power. Anyone comparing energy generation technologies can keep up with cost trends like these on daily.dev."}}]} ```