Lunar fission surface power Market Outlook 2026–2041: Growth Drivers, Key Companies, Strategic Developments & Adoption Forecast — A Meticulous Next™ Foresight Brief

This Meticulous Next™ brief examines lunar fission surface power, meaning fission reactors, power conversion, shielding and fuel that supply electricity to outposts on the Moon and to long-duration spacecraft. It tests whether the first reactors planned for about 2030 lead to repeat systems of higher power before 2041.

The mission need is clear. A reactor can supply power through lunar nights that last more than 14 Earth days near the poles, when solar panels cannot, and the United States has not flown a space reactor in 60 years. The conclusion is that the first flight is a technology and schedule risk before it is a market, and all later demand depends on it.

Policy has moved quickly. A NASA policy directive of July 2025 called for a 100 kilowatt reactor on the Moon by 2030 within a mass limit of 15 tonnes, a December 2025 executive order called for initial elements of a permanent lunar outpost by 2030, NASA and the Department of Energy signed a memorandum in January 2026, and a White House initiative reported in April 2026 sets a minimum of 20 kilowatts. The conclusion is that the commitment is firm but the power requirement has moved, which leaves suppliers designing to a range.

Procurement is built around purchase of power. NASA drafted partnership proposals in August and December 2025, plans to buy power rather than the reactor under funded Space Act Agreements, and an INL-commissioned report put programme cost at USD 1 billion to USD 3 billion. The conclusion is that early revenue is limited to a few awards, and the market widens only after a first reactor operates on the surface.

The brief treats lunar fission surface power as an emerging signal with a fifteen year horizon to 2041. It identifies which systems, regions and companies move first and what each means for space agencies and nuclear firms. It is a focused 115-page decision brief that presents an indicative trajectory rather than a segmented market model.

A fission surface power system has a small reactor, a power conversion system that turns heat into electricity, shielding, radiators that reject waste heat and a structure that fits a lander. The NASA requirement is for at least 100 kilowatts electric using a closed Brayton cycle, with a mass limit of 15 tonnes and a heavy-class lander.

Earlier programmes show the starting point. NASA awarded three concept contracts for fission surface power in 2022, the Kilopower programme tested a smaller reactor, and the DRACO nuclear thermal propulsion demonstration with DARPA ended in 2025 after DARPA withdrew. The conclusion is that surface power has the clearest path of the space nuclear programmes, while propulsion has lost its main test programme.

Fuel supply is a further limit, and the Department of Energy expects the supply of high-assay low-enriched uranium to be resolved by the end of the decade. The conclusion is that fuel availability, as much as reactor design, sets the date of the first flight.

Radioisotope power systems from companies such as Zeno Power serve smaller loads and are outside the reactor market.

The limits are schedule, budget, fuel, and changes in the requirement. The period turns on whether a reactor reaches the surface by 2030 or slips into the early 2030s.

The lunar fission surface power market, covering fission reactors, power conversion systems, shielding, fuel and integration for lunar surface and in-space power, and excluding radioisotope power systems, nuclear propulsion engines, launch services, and solar and battery power, is valued at USD 0.4–0.8 billion in 2026 and is projected to reach USD 6.16–12.33 billion by 2041, at a CAGR of 20%.

The 2026 base rests on design, test and partnership contracts for reactors, conversion systems and integration, mainly in the United States, with early programmes in China, Russia and Europe. Growth then follows the first lunar flight, repeat purchases and higher power systems.

The forecast is sensitive to the timing of the first launch, budgets and fuel supply. Regionally, North America holds the largest base, followed by Asia Pacific and Europe.

The base case assumes the first reactor launches by about 2031 and agencies order repeat systems after it operates, bringing the inflection to about 2034. An accelerated case assumes launch by 2030 and early orders for higher power, bringing the inflection to 2032 and lifting the 2041 value to the top of the range. A delayed case assumes fuel and budget problems that push the first launch beyond 2033, moving the inflection to 2038 and holding growth at the bottom of the range.

Growth drivers

• Power through two-week lunar nights.
• National space policy.
• Purchase of power rather than reactors.
• Demand from long-duration missions.

Enablers

• Space agency and energy department agreements.
• Industry partnership proposals.
• Heavy-class landers.
• Earlier ground test results.

Restraints and barriers

• No reactor flown by the United States in 60 years.
• Budget uncertainty.
• Fuel supply.
• Changes in programme requirements.

The direction of lunar fission surface power is set by lunar outpost plans, competition from China and Russia, public funding, fuel availability, and lander and launch capacity.

The key participants in lunar fission surface power include Lockheed Martin Corporation, Northrop Grumman Corporation, Redwire Corporation, Blue Origin Enterprises, L.P., Space Exploration Technologies Corp., Zeno Power Systems, Inc., BWX Technologies, Inc., Westinghouse Electric Company LLC, X-energy Reactor Company, LLC, Centrus Energy Corp., L3Harris Technologies, Inc., Intuitive Machines, Inc., Rolls-Royce Holdings plc, General Atomics, The Boeing Company, Oklo Inc., Airbus SE, Thales S.A., State Atomic Energy Corporation Rosatom, China National Nuclear Corporation, Radiant Industries, Inc., Antares Nuclear, Inc., NANO Nuclear Energy Inc., Atomos Space, Inc., Bechtel Corporation, Jacobs Solutions Inc., Battelle Energy Alliance, LLC, National Aeronautics and Space Administration, United States Department of Energy, Idaho National Laboratory, Defense Advanced Research Projects Agency, Roscosmos State Corporation, China National Space Administration, European Space Agency, Japan Aerospace Exploration Agency, UK Space Agency and Canadian Space Agency.

The brief profiles representative participants in each archetype and assesses which are positioned to lead as the first reactors fly.

Lockheed Martin and Northrop Grumman lead among primes with space nuclear programmes, Blue Origin and SpaceX lead among lander providers named for reactor delivery, and Zeno Power leads in radioisotope power. Competitive intensity is low at present, because a few awards will decide the early market.

Where value migrates.

In 2026 value sits with design, test and partnership contracts funded by a few agencies. By 2033 it moves toward flight systems and the integration of reactors with landers. By 2041 it settles with power services, where suppliers sell electricity to outposts and missions. Margins hold for primes with integration experience and for fuel suppliers, and narrow for firms that supply parts to a single programme.

The signals converge on a firm schedule and a thin supply base. A presidential order, agency agreements and draft partnership proposals support growth, while the lack of a flown reactor, changes in requirements, fuel supply and budgets hold back orders.

Structural limits show where progress could slow: schedule, fuel, funding and technical risk. The brief therefore tracks four indicators: partnership awards made, reactors tested on the ground, fuel delivered and reactors launched.

Awards first, then ground tests, then the first lunar flight, then repeat systems is the expected order of adoption.