{"id":979042,"date":"2026-07-07T08:34:53","date_gmt":"2026-07-07T12:34:53","guid":{"rendered":"https:\/\/www.marketnewsdesk.com\/index.php\/deep-fission-prototype-reactor-canister-arrives-at-kansas-site-advancing-reactor-proof-of-concept-program\/"},"modified":"2026-07-07T08:34:53","modified_gmt":"2026-07-07T12:34:53","slug":"deep-fission-prototype-reactor-canister-arrives-at-kansas-site-advancing-reactor-proof-of-concept-program","status":"publish","type":"post","link":"https:\/\/www.marketnewsdesk.com\/index.php\/deep-fission-prototype-reactor-canister-arrives-at-kansas-site-advancing-reactor-proof-of-concept-program\/","title":{"rendered":"Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program"},"content":{"rendered":"<p>        <!--.bwalignc { text-align: center; list-style-position: inside }body {font:normal small Arial,Helvetica,sans-serif;color:#000;background-color:#fff;padding:24px;margin:0;} a img {border:0;} h3 {font-size:medium;color:#000;margin:0 0 1em 0; text-align:center;}-->  <\/p>\n<p class=\"bwalignc\"><b>Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program<\/b><\/p>\n<p class=\"bwalignc\"><i>&#8212; Company Prepares to Ring Nasdaq Closing Bell Today in Honor of Milestone &#8212;<\/i><\/p>\n<p>PARSONS, Kan.&#8211;(<a href=\"http:\/\/www.businesswire.com\">BUSINESS WIRE<\/a>)&#8211;<br \/>\nDeep Fission, Inc. (Nasdaq: FISN) (\u201cDeep Fission\u201d or the \u201cCompany\u201d), an advanced nuclear energy company developing small modular pressurized water reactors installed one mile underground, today announced the arrival of its prototype reactor canister at its Parsons, Kansas site, marking a key milestone in the Company\u2019s Proof-of-Concept Well program and its Gravity Nuclear Reactor\u2122 development. In celebration of this milestone and its listing on the Nasdaq Stock Market, Deep Fission will ring the <a rel=\"nofollow\" href=\"https:\/\/cts.businesswire.com\/ct\/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.nasdaq.com%2Fmarketsite%2Fbell-ringing-ceremony&amp;esheet=54566108&amp;newsitemid=20260707721954&amp;lan=en-US&amp;anchor=Nasdaq+closing+bell+today+at+4%3A00+PM+ET&amp;index=1&amp;md5=ebb8eadd737deb958b07906fb8dd0f84\">Nasdaq closing bell today at 4:00 PM ET<\/a>.<\/p>\n<p id=\"news-body-cta\">This press release features multimedia. View the full release here: <a href=\"https:\/\/www.businesswire.com\/news\/home\/20260707721954\/en\/\" rel=\"nofollow\">https:\/\/www.businesswire.com\/news\/home\/20260707721954\/en\/<\/a><\/p>\n<div id=\"bwbodyimg\" style=\"width: 360px;float:left;padding-left:0px;padding-right:20px;padding-top:0px;padding-bottom:0px\"><img decoding=\"async\" src=\"https:\/\/mms.businesswire.com\/media\/20260707721954\/en\/2846402\/4\/Reactor_Canister_Image.jpg\" alt=\"Deep Fission Reactor Canister\" \/><\/p>\n<p style=\"font-size:85%\">Deep Fission Reactor Canister<\/p>\n<\/div>\n<p>\nThe factory-built prototype canister completed fabrication, hydrostatic testing, and delivery to Kansas, representing tangible progress toward validating installation, infrastructure readiness, and operational sequencing for the Company\u2019s first commercial demonstration well.<\/p>\n<p>\n\u201cThe arrival of our prototype reactor canister at the Kansas site is a clear step forward in moving from design to deployed infrastructure,\u201d said Mark P\u00e9r\u00e8s, Chief Nuclear Officer of Deep Fission. \u201cSuccessfully manufacturing, testing, and delivering this hardware demonstrates performance of our design and supply chain capabilities. Upcoming testing using this hardware will validate our approach and provide valuable learnings as we assemble, install and test key systems under non-nuclear conditions in our large diameter borehole.\u201d<\/p>\n<p>\nThe Proof-of-Concept Well is Deep Fission\u2019s nearly full-scale validation program, designed to demonstrate a larger-diameter borehole and end-to-end installation workflow using commercial-grade, non-nuclear components prior to fuel loading. The program is intended to validate each stage of underground deployment under real-world conditions while confirming engineering assumptions at scale and supporting the Company\u2019s broader commercialization timeline.<\/p>\n<p>\nThe reactor canister is a key component of Deep Fission\u2019s Gravity Nuclear Reactor\u2122 design, which places a small modular pressurized water reactor in a borehole approximately one mile underground. The Gravity Reactor\u2122 is based on established pressurized water reactor technology adapted for subsurface deployment, using pressure from a mile-long water column atop and surrounding the reactor in the borehole, to support operating pressure and cooling. In this design, thermal energy is transferred through a closed-loop system from the reactor canister to a heat exchanger, then rises to the surface in a secondary closed-loop for conversion into electricity, like a geothermal system.<\/p>\n<p>\nFollowing arrival at the Parsons site, the non-nuclear prototype reactor canister will be prepared for testing as Deep Fission continues preparation for its large diameter drilling program. The Company is advancing permitting with the Kansas Department of Health and Environment (KDHE) for the non-nuclear borehole, which is expected to serve as the next major proof-of-concept milestone.<\/p>\n<p>\n\u201cThis milestone reflects disciplined execution across fabrication, testing, and delivery, and strengthens the foundation for scaled deployment of our Gravity Nuclear Reactor\u2122 system,\u201d said Mike Brasel, Chief Operating Officer of Deep Fission.<\/p>\n<p>\nThe Company is also progressing development of its full-scale nuclear demonstration borehole and advancing design of its primary heat exchanger. These parallel efforts support a phased strategy to accelerate iterative validation of the most unique aspects of Deep Fission\u2019s commercial deployment model.<\/p>\n<p>\nDeep Fission is participating in the U.S. Department of Energy\u2019s Reactor Pilot Program. Authorized under Executive Order 14301, the program enables reactor testing and deployment in order to accelerate the path to commercialization of nuclear energy.<\/p>\n<p>\nTune in to Deep Fission ringing the Nasdaq closing bell today at <a rel=\"nofollow\" href=\"https:\/\/cts.businesswire.com\/ct\/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.nasdaq.com%2Fmarketsite%2Fbell-ringing-ceremony&amp;esheet=54566108&amp;newsitemid=20260707721954&amp;lan=en-US&amp;anchor=https%3A%2F%2Fwww.nasdaq.com%2Fmarketsite%2Fbell-ringing-ceremony&amp;index=2&amp;md5=4877a117654a32d7e1f4dd37257f3d01\">https:\/\/www.nasdaq.com\/marketsite\/bell-ringing-ceremony<\/a><\/p>\n<p><b>About Deep Fission<\/b><\/p>\n<p>\nDeep Fission is developing technology that places a small modular pressurized water reactor in a borehole approximately one mile underground. The Company\u2019s Gravity Nuclear Reactor\u2122 approach combines established pressurized water reactor technology with a novel underground deployment model designed to simplify construction, enhance safety, and support scalable commercial deployment. Deep Fission is focused on delivering reliable, low-carbon baseload power to meet growing electricity demand from utilities, industrial customers, and data centers. The Company is currently advancing the development of its first reactor project in Parsons, Kansas and was selected for the U.S. Department of Energy\u2019s Reactor Pilot Program.<\/p>\n<p><b>Forward-Looking Statements<\/b><\/p>\n<p>\nThis press release contains forward-looking statements within the meaning of the federal securities laws. Forward-looking statements include, but are not limited to, statements regarding Deep Fission\u2019s business strategy, technology development plans, potential commercial deployments, potential demand represented by non-binding LOIs, expected regulatory activities, planned project milestones, potential commercialization, potential revenue recognition, and the timing, feasibility, scalability, safety, and performance of the Company\u2019s technology. These statements are based on current expectations and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied.<\/p>\n<p>\nImportant factors that may cause actual results to differ materially include, among others, risks related to the Company\u2019s early stage of development; the non-binding nature of the LOIs; the Company\u2019s ability to negotiate and enter into definitive commercial agreements; technical, engineering, drilling, construction, regulatory, licensing, financing, supply chain, and deployment risks; the Company\u2019s ability to obtain required approvals from the NRC, DOE, and other governmental authorities; market adoption of the Company\u2019s technology; and the other risks described under \u201cRisk Factors\u201d and \u201cCautionary Note Regarding Forward-Looking Statements\u201d in Deep Fission\u2019s filings with the Securities and Exchange Commission.<\/p>\n<p>\nForward-looking statements speak only as of the date of this press release. Deep Fission undertakes no obligation to update any forward-looking statements, except as required by law.<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/cts.businesswire.com\/ct\/CT?id=bwnews&amp;sty=20260707721954r1&amp;sid=flmnd&amp;distro=nx&amp;lang=en\" style=\"width:0;height:0\" \/><span class=\"bwct31415\" \/><\/p>\n<p id=\"mmgallerylink\"><span id=\"mmgallerylink-phrase\">View source version on businesswire.com: <\/span><span id=\"mmgallerylink-link\"><a href=\"https:\/\/www.businesswire.com\/news\/home\/20260707721954\/en\/\" rel=\"nofollow\">https:\/\/www.businesswire.com\/news\/home\/20260707721954\/en\/<\/a><\/span><\/p>\n<p>\nMedia Contact<br \/>\n<br \/>Chloe Frader<br \/>\n<br \/><a rel=\"nofollow\" href=\"mailto:media@deepfission.com\">media@deepfission.com<\/a><\/p>\n<p>\nInvestor Relations Contact<br \/>\n<br \/>Bob Prag<br \/>\n<br \/><a rel=\"nofollow\" href=\"mailto:IR@deepfission.com\">IR@deepfission.com<br \/>\n<\/a><br \/>(858) 794-9500<\/p>\n<p>\nElevate IR<br \/>\n<br \/>(720) 330-2829<\/p>\n<p><b>KEYWORDS:<\/b> Kansas United States North America<\/p>\n<p><b>INDUSTRY KEYWORDS:<\/b> Other Energy Utilities Oil\/Gas Alternative Energy Energy Nuclear<\/p>\n<p><b>MEDIA:<\/b><\/p>\n<table cellpadding=\"3\" cellspacing=\"3\">\n<tr>\n<td><font face=\"Arial\" size=\"2\"><b>Photo<\/b><\/font><\/td>\n<\/tr>\n<tr>\n<td><img decoding=\"async\" src=\"https:\/\/mms.businesswire.com\/media\/20260707721954\/en\/2846402\/3\/Reactor_Canister_Image.jpg\" alt=\"Photo\" \/><\/td>\n<\/tr>\n<tr>\n<td><font face=\"Arial\" size=\"2\">Deep Fission Reactor Canister<\/font><\/td>\n<\/tr>\n<tr>\n<td><font face=\"Arial\" size=\"2\"><b>Logo<\/b><\/font><\/td>\n<\/tr>\n<tr>\n<td><img decoding=\"async\" src=\"https:\/\/mms.businesswire.com\/media\/20260707721954\/en\/2846400\/3\/Deep_Fission_PRIMARY_Logo.jpg\" alt=\"Logo\" \/><\/td>\n<\/tr>\n<tr>\n<td><font face=\"Arial\" size=\"2\"><\/font><\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program &#8212; Company Prepares to Ring Nasdaq Closing Bell Today in Honor of Milestone &#8212; PARSONS, Kan.&#8211;(BUSINESS WIRE)&#8211; Deep Fission, Inc. (Nasdaq: FISN) (\u201cDeep Fission\u201d or the \u201cCompany\u201d), an advanced nuclear energy company developing small modular pressurized water reactors installed one mile underground, today announced the arrival of its prototype reactor canister at its Parsons, Kansas site, marking a key milestone in the Company\u2019s Proof-of-Concept Well program and its Gravity Nuclear Reactor\u2122 development. In celebration of this milestone and its listing on the Nasdaq Stock Market, Deep Fission will ring the Nasdaq closing bell today at 4:00 PM ET. This press release features multimedia. View the full release &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.marketnewsdesk.com\/index.php\/deep-fission-prototype-reactor-canister-arrives-at-kansas-site-advancing-reactor-proof-of-concept-program\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-979042","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program - Market Newsdesk<\/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:\/\/www.marketnewsdesk.com\/index.php\/deep-fission-prototype-reactor-canister-arrives-at-kansas-site-advancing-reactor-proof-of-concept-program\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program - Market Newsdesk\" \/>\n<meta property=\"og:description\" content=\"Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program &#8212; Company Prepares to Ring Nasdaq Closing Bell Today in Honor of Milestone &#8212; PARSONS, Kan.&#8211;(BUSINESS WIRE)&#8211; Deep Fission, Inc. (Nasdaq: FISN) (\u201cDeep Fission\u201d or the \u201cCompany\u201d), an advanced nuclear energy company developing small modular pressurized water reactors installed one mile underground, today announced the arrival of its prototype reactor canister at its Parsons, Kansas site, marking a key milestone in the Company\u2019s Proof-of-Concept Well program and its Gravity Nuclear Reactor\u2122 development. In celebration of this milestone and its listing on the Nasdaq Stock Market, Deep Fission will ring the Nasdaq closing bell today at 4:00 PM ET. This press release features multimedia. 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(Nasdaq: FISN) (\u201cDeep Fission\u201d or the \u201cCompany\u201d), an advanced nuclear energy company developing small modular pressurized water reactors installed one mile underground, today announced the arrival of its prototype reactor canister at its Parsons, Kansas site, marking a key milestone in the Company\u2019s Proof-of-Concept Well program and its Gravity Nuclear Reactor\u2122 development. In celebration of this milestone and its listing on the Nasdaq Stock Market, Deep Fission will ring the Nasdaq closing bell today at 4:00 PM ET. This press release features multimedia. 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