Four US microreactor companies — Antares Nuclear, Valar Atomics, Deployable Energy, and Aalo Atomics — achieved zero-power criticality ahead of a Trump administration deadline tied to the nation's 250th birthday. All four were selected under the DOE's Reactor Pilot Program, which fast-tracks prototype development. However, zero-power criticality is a limited milestone: it confirms a sustained chain reaction is possible but produces no electricity and requires significant additional engineering work, including cooling systems. Companies are projecting commercial timelines of 2027–2028, though regulatory hurdles from the NRC remain uncertain. Some nuclear policy analysts argue the microreactor focus is a distraction from scaling up meaningful grid capacity.
Nguồn: https://www.technologyreview.com/2026/07/09/1140235/nuclear-reactor-milestone-criticality. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.
Các nhà nghiên cứu từ MIT Energy Initiative đã phát triển HyCAT, một công cụ mã nguồn mở giúp so sánh chi phí và lượng khí thải carbon của các phương pháp vận chuyển hydrogen. Công cụ này mô hình hóa năm bước trong chuỗi cung ứng (hóa lỏng, lưu trữ, vận chuyển, nhập khẩu lưu trữ và tái khí hóa) và hỗ trợ phân tích bốn phương thức vận chuyển: hóa lỏng trực tiếp, chất mang dựa trên toluene, methane tổng hợp và ammonia. Tùy thuộc vào địa lý, chi phí năng lượng và cơ sở hạ tầng, ammonia được coi là phương án hứa hẹn nhất nhờ cơ sở hạ tầng đã được thiết lập sẵn.
Lập trình viên nên đọc bài này để hiểu cách xây dựng công cụ phân tích chi tiết về chuỗi cung ứng hydrogen—chính xác cho các quyết định kỹ thuật, kinh tế và môi trường trong tương lai năng lượng sạch.
Quaise Energy has closed a $134M first tranche of its Series B, led by Prelude Ventures with participation from Japanese energy firms JERA and Idemitsu, bringing total funding to $230M. The startup uses millimetre-wave microwave beams — technology originating from MIT research — to vaporise rock at depths beyond 5km, reaching temperatures of 300–500°C that conventional drill bits cannot access. The funds will go toward Project Obsidian in Oregon, targeting the world's first commercial superhot geothermal plant with grid power delivery by 2030. A hyperscaler has already signed for the first 50MW of output. The company's test site in Texas has reached nearly 1km depth, still far short of the 5km+ target, leaving the core engineering challenge unproven at commercial scale. The raise reflects surging investor interest in always-on clean power driven by AI data centre demand.
Realta Fusion has demonstrated direct energy conversion (DEC) on a commercial fusion machine for the first time, drawing several amps at ~100 volts from its WHAM reactor — enough to power a handful of light bulbs. DEC skips the traditional steam turbine cycle and harvests electricity directly from charged particles, with theoretical efficiency above 90% versus ~33% for steam turbines. The test was conducted on 19 June using the WHAM experimental machine co-operated with the University of Wisconsin-Madison. Importantly, WHAM does not yet burn deuterium-tritium fuel, so this is a proof-of-concept for the hardware, not net electricity from fusion. Realta plans first commercial reactors in the mid-2030s, where DEC could reduce electricity costs by 10–20%. The company is one of eight firms in the US DOE's flagship fusion programme and raised $36M in a Series A last year.