Fusion

A Colorado-based fusion energy company said the U.S. Dept. of Energy (DOE) has approved the company’s preconceptual technical design for its commercial fusion power plant.

Commonwealth Fusion Systems (CFS) announced the company has published five peer-reviewed physics basis papers detailing its work on the group’s ARC fusion power plant.

Fusion energy group Helion said the company has completed a $465-million Series G investment round, increasing the Everett, Washington-based group’s valuation to $15.5 billion. Helion is among dozens of U.S. and global companies working to commercialize fusion power.

Colorado-headquartered Xcimer Energy has announced the start of operations for Phoenix, what the company calls the largest privately owned laser system in the world. Phoenix, named after the legendary bird from Greek and Egyptian mythology, is the company’s prototype for commercializing laser fusion.

Another U.S.-based energy company said its technology has achieved key performance metrics that advance its goal of commercial fusion by the mid 2030s. California-headquartered Pacific Fusion on June 2 said its core pulsed power technology is on track to achieve net facility gain by 2030. That’s the state where the “entire fusion machine produces more […]

After the encouraging developments from last year and the news from fusion startups receiving funding, a familiar pattern is emerging across energy policy discussions in emerging and developing economies

A U.S.-based fusion energy company has become the first such group to apply to join a major power grid operator. Massachusetts-based Commonwealth Fusion Systems (CFS) on April 28 said it has submitted a connection request to PJM Interconnection, the nation’s largest wholesale electricity market, as part of its development plan for a commercial-scale fusion energy power plant.

The U.S. Dept. of Energy’s Office of Nuclear Energy has spelled out several areas that present challenges to domestic and global development of nuclear power. Chief among those issues is building a process that enables fuel development on a repeatable, industrial scale, so that projects can move beyond the demonstration phase to commercial operation.

Fusion’s first challenge is scientific: can we make it work at scale? Its second, far tougher test is economic: can we make it cheap enough to matter? Global private investment has passed $10 billion, governments are launching new programs, and regulators are beginning to streamline pathways for advanced fusion machines.​ But one question will determine whether […]

Dr. Dario Gil, the Department of Energy’s (DOE’s) Under Secretary for Science, lays out a bold vision to double the productivity of U.S. research and development (R&D) within a decade—and explains why energy and artificial intelligence (AI) are two sides of the same coin. After 22 years at IBM, where he rose to senior vice […]

Artificial intelligence (AI) group OpenAI is reportedly discussing buying electricity from Helion Energy, the fusion startup company based in Everett, Washington. Sources told POWER that a deal would enable OpenAI to be guaranteed part of Helion’s power generation, with as much as 5 GW available by 2030 and up to 50 GW by 2035.

The energy industry, specifically the nuclear sector, is staring down a challenging 2026 with a combination of mounting pressure: tech giants shaking hands on purchasing agreements before facilities are fully built, innovative solutions reinventing the methods of long-established leaders, and mounting demands to deliver efficiency faster. Does that sound familiar? COMMENTARY If you’ve had an […]

While the bulk of focus on advanced nuclear technology has honed in tightly on the U.S., from enrichment and conversion to advanced fuels, reprocessing strategies, and fast-spectrum systems, several other

The U.S. Nuclear Regulatory Commission (NRC) has proposed the first dedicated federal licensing framework for commercial fusion machines, setting out a technology‑inclusive, risk‑informed approach under its 10 CFR Part 30 byproduct material rules rather than the power‑reactor framework used for fission plants. The proposed rule seeks to place regulatory oversight of fusion‑generated radioactive material within […]

Fusion energy company Helion said its Polaris prototype has set new industry benchmarks, becoming the first privately developed fusion energy machine to demonstrate measurable deuterium-tritium fusion and achieve plasma temperatures of 150 million degrees Celsius.

As global electricity demand surges 40% by 2035 and warming projections worsen, nuclear, geothermal, gas, offshore wind, storage, and fusion must all advance—along with the workforce to build them. The global energy landscape is undergoing its most significant transformation since the Industrial Revolution. Electricity demand is surging at unprecedented rates while the imperative to decarbonize […]