TAE TechnologiesIn Developmentsiting
TAE's first prototype commercial fusion power plant, designed to deliver net electrons to the grid from the company's hydrogen-boron fusion pathway and serve as the bridge to later utility-scale plants.
Latest update Sep 18, 2026
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Pre-construction. On August 6, 2026 TAE said Da Vinci had completed its key designs, with construction still planned later in 2026 and first fusion power targeted in 2031. TAE completed its multi-state site-evaluation tour across Alabama, Ohio, and Texas on April 7, 2026; as of September 18, 2026 no final site had been announced and the Form S-4 for the TMTG merger remained unfiled. Grid delivery remains targeted for 2031.
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Announced next steps from TAE Technologies that mention Da Vinci.
2026
Convert the April 7, 2026 completion of the Alabama/Ohio/Texas site evaluation tour into a final site choice and start construction of the initial ~50 MWe Da Vinci facility. TAE's August 6, 2026 update said key designs were complete and construction was still planned later in 2026, contingent on the TMTG merger close (still targeted by end of 2026) and approvals. Re-verified September 18, 2026: no final site had been announced, and TAE's news page still lists the April tour as the latest siting update.
End of 2026
File the still-pending Form S-4 with the SEC (unlocks an additional $100M of TMTG cash for TAE on top of the $200M provided at signing), then obtain TMTG shareholder and regulatory approvals to close the all-stock merger - a June 10, 2026 update pushed the target to Q4 2026 or sooner and dropped the earlier plan to spin off Truth Social - and fund Da Vinci construction. TMTG's Form 8-K filed August 10, 2026 said it intends to file using Q2 2026 financials once TAE's going-public audits are finished. Re-verified September 18, 2026: the S-4 remained unfiled, TAE's news page had no merger-filing update, and the merger agreement's outside date is December 18, 2026.
2031
Deliver first fusion-generated electricity to the grid from the ~50 MWe Da Vinci prototype plant, establishing TAE as a commercial fusion power provider, with follow-on plants scaling to 350-500 MWe. TAE's August 6, 2026 update specified a 2031 first-power goal (the FAQ still says early 2030s). Site selection and construction start remain gated on closing the proposed TMTG merger, still targeted for a close by end of 2026; no final site had been announced as of September 18, 2026, and the Form S-4 was still unfiled.
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TAE Technologies and Black Moon Energy Corporation announced a strategic agreement on August 5 under which Black Moon, a privately funded lunar-resource company, would supply helium-3 fuel to support TAE's fusion power development as an alternative pathway to deuterium-tritium fuel cycles. Black Moon plans a robotic lunar delineation mission within five years to de-risk commercial-scale helium-3 production, as TAE continues advancing its first Da Vinci fusion power plant and its pending merger with Trump Media & Technology Group.
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Commonwealth Fusion Systems
Compact, high-field tokamak designed to demonstrate net energy from fusion. It uses high-temperature superconducting magnets to achieve reactor-class magnetic fields in a much smaller machine, with peer-reviewed projections of roughly Q ~11 and ~140 MW of fusion power.
Commonwealth Fusion Systems
CFS' first planned grid-scale commercial fusion power plant, designed to deliver about 400 MW of clean electricity using the HTS magnet and tokamak stack proven through SPARC. The project is officially named the Fall Line Fusion Power Station and is planned for a 100-acre site at the James River Industrial Center in Chesterfield County, Virginia.
Helion Energy
7th-generation fusion prototype designed to demonstrate electricity production from fusion using Helion's pulsed magneto-inertial architecture and direct electricity recapture.
Helion Energy
First commercial fusion power plant, designed to generate 50+ MWe. Located in Malaga, Chelan County, Washington, on land leased from Chelan County PUD near Rock Island Dam. Power will be marketed by Constellation Energy to Microsoft data centers.
