Longview Fusion Power Plant
Most fusion companies are still working to prove their fusion science works. We are working to build a fusion power plant.
We make a distinction that industry often blurs. The underlying physics of our approach has been demonstrated at the National Ignition Facility, not being hypothesized. The challenge ahead for Longview is not scientific discovery, but transforming a proven physical result into a reliable, repeatable, and economically viable source of electricity.
| 1997 to 2009 | NIF designed and built. Leadership of the NIF team is now leading Longview to deliver the world's largest and most energetic laser system. | LLNL ยท $15B U.S. investment |
| Aug 8, 2021 | Burning plasma achieved. Fusion reactions become the dominant source of heating in the fuel. | NIF ยท published result |
| Dec 5, 2022 | Ignition achieved. 3.15 MJ of fusion energy from 2.05 MJ delivered, the first fusion energy gain in history. | NIF ยท first scientific breakeven |
| 2023 to Present | Ignition was reproduced eleven times. | NIF ยท repeated demonstrations |
| Apr 7, 2025 | Record gain. 8.6 MJ from 2.08 MJ on target, a scientific (target) gain of 4.13, the highest on record. | LLNL / NIF ยท current record |
| 2033 | Target deployment of a first Longview power plant. | Target ยท the engineering ahead |
Longview begins with the commercial goal. Rather than progressing through multiple generations of experimental facilities, Longview is designing a commercial fusion power plant using established industrial materials, existing supply chains, and input from organizations experienced in building, operating, and regulating energy infrastructure.
Longview plants are designed around the deuterium-tritium fuel cycle, the most mature and achievable pathway to commercial fusion energy. The design incorporates on-site tritium production, intended to reduce dependence on external fuel supplies and strengthen long-term energy security.
Beyond electricity, Longview will produce high quality heat that can be used for production of valuable commodities including hydrogen, fertilizers, synfuels, and desalinated water.
Longview, using its high power neutron source, produces tritium to self-fuel the power plant and a portfolio of medical and industrial isotopes used in healthcare, advanced manufacturing, scientific research, and national security applications.
Fusion companies are pursuing different technical pathways, but one distinction matters above all others: Longview uses the only underlying approach that has produced more fusion energy than was delivered to the fuel.
Longview was founded by the leadership team that built and operated the NIF and is translating that result into a commercial power plant design.
| Approach | Fuel | Fusion energy gain demonstrated | Commercial status |
|---|---|---|---|
| Longview / Laser inertial fusion | Deuterium-tritium | Yes | Commercial power plant engineering under way |
| Tokamak | Deuterium-tritium | No | Experimental physics facilities under development |
| Stellarator | Deuterium-tritium | No | Experimental physics facilities under development |
| Magnetized target fusion | Varies | No | Prototype development |
| Other approaches | Varies | No | Research and early-stage development |
As of June 2026 ยท public results ยท approaches shown generically
For the investor brief, the validation record, and the plant program, reach the Longview team directly.