「核融合发电还要30年」这句老笑话正被资金与政治进展削弱。Donald Trump 在第二任期内透过持有41.5%股权的 Trump Media & Technology Group 与 TAE Technologies 合并，交易估值为6,000,000,000美元，TAE 占约一半，并计划于本夏完成，目标在2030年代初开始发电，象征企业与政策端已不再把核融合当作遥远理想。这些变化使「是否可在一代内商用」比「永久不会实现」更像核心争论。

关键变数是资金与进度。由 MIT 核物理学家创立的 Commonwealth Fusion Systems（CFS）目前筹资约3,000,000,000美元，其中包含8.63亿美元（US$863mn）的8月增资，已成为目前最募资充足的核融合公司。根据 EU 的 F4E Fusion Observatory，2020—2025年间核融合公司总募资超过13,000,000,000美元，而此前所有年份不足2,000,000,000美元，增长超过6倍。2026年热潮仍在延续：Inertia 在2月募得4.5亿美元（US$450mn）；Proxima Fusion 取得巴伐利亚州政府有条件承诺4亿欧元（€400mn）用于2,000,000,000欧元（€2bn）试验厂的建设；Helion Energy 去年也募得4.25亿美元（US$425mn），同时市场上争论谁能率先连接电网。

资金降低了资本密集型方案的进入门槛，但关键仍是技术可持久性与工程可落地性。近十年来，超算与超导磁材的突破让先前偏学术想像的路线更接近工程验证：超算可更精准模拟高温氢电浆行为，超导磁体可形成更大更强磁场。Type One Energy、Tokamak Energy 与 AECOM 的合作及其田纳西许可程序，目标于2030年代初至中期提供电力；CFS 也在明年启动示范机组并申请接入供电13州的PJM电网。政策面亦同步加速：英国规划到2030年公共投资2,500,000,000英镑（£2.5bn），欧盟投入2.22亿欧元（€222mn）推进科研到电网；美国在安全与竞争考量下警惀中国自2022年12月后已动用至少65亿美元（US$6.5bn），并发布中期2030年代并网的道路图，ARPA-E再追加18个月内1.35亿美元（US$135mn）。

For years the refrain was that fusion is always thirty years away. The article argues that this is becoming less convincing after a major political-financial shift: Trump, during his second term, is backing a merger between Trump Media & Technology Group—where he holds 41.5%—and TAE Technologies. The deal values the combined group at $6 billion, with TAE contributing roughly half, and is to complete this summer, while TAE searches for a U.S. site and targets grid electricity in the early 2030s. That sequence moves fusion from a distant technical promise toward a commercial race with defined timelines and hard valuation discipline.

The industrial signal is scale and velocity. CFS says it has raised about $3 billion in total, including an $863 million round last August, giving it the title of the best-funded fusion developer. EU F4E data puts total fusion funding at more than $13 billion between 2020 and 2025, versus under $2 billion in all earlier years—an order-of-magnitude jump. The 2026 flow continues: Inertia raised $450 million, Proxima Fusion has a conditional €400 million pledge toward a €2 billion first plant, and Helion Energy raised $425 million. Several firms now claim they can build the first grid-connected plant within a decade, with CFS planning a demonstration unit next year, filing for PJM interconnection, and Helion targeting Microsoft supply in Washington by 2028.

Funding alone is not proof of physics readiness, but it is financing the long gap between laboratory success and real grids. Recent technical progress is concentrated in supercomputing models of solar-temperature plasma and in strong superconducting magnets, reviving long-standing concepts like the stellarator after 75 years of development. Type One Energy is pushing a US and UK pathway to early-to-mid-2030s power, while CFS and others pursue similar schedules. Policymakers are matching this: the UK set out a strategy with £2.5 billion public investment target by 2030; the EU announced €222 million for fusion-grid transition; and the U.S. has sharpened its strategic rhetoric and financing, citing China’s at least $6.5 billion mobilisation since Dec 2022, issuing a roadmap to commercial grid power by mid-2030s, and ARPA-E’s $135 million commitment over 18 months. The race is accelerating, but the article still notes that every one of these firms could fail and that large emissions reduction may still take many years.