According to Fortune Business Insights, the global small modular reactor market is on a steady growth trajectory. the market was valued at roughly $5.96 billion in 2025 and is expected to climb to about $6.13 billion in 2026, eventually reaching close to $8.77 billion by 2034. This implies a compound annual growth rate (CAGR) of approximately 4.59% across the 2026–2034 forecast window.
SMRs are compact nuclear reactors that are largely factory-built before being transported to their operating site, where they are installed to supply power for industrial facilities, buildings, and other commercial uses. Their maximum output typically tops out around 300 megawatts electric (MWe). The report highlights their reputation for dependability and operational efficiency as a core reason for rising adoption, with General Electric cited as a major supplier of modular reactor technology in this space.
Growth Drivers
Two forces stand out as the primary engines behind market expansion. First, the global push toward cleaner power generation is steering governments and utilities toward nuclear options as an alternative to fossil fuels, with SMRs positioned as a scalable piece of that transition. Second, industrial energy consumption continues to climb, and light water reactor variants in particular are seeing broader uptake across power generation, utilities, and data center operations, as companies look for energy sources that are both dependable and cost-efficient.
A notable emerging opportunity is the surge in electricity demand tied to data centers and artificial intelligence workloads. The report references International Energy Agency figures indicating data centers made up over 2% of global electricity use in 2022, with consumption potentially doubling by 2026 — a trend pushing tech companies toward nuclear-backed power solutions to stabilize their energy needs.
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Restraints and Challenges
The absence of standardized licensing frameworks across jurisdictions remains a significant hurdle, since inconsistent regulatory requirements around design, manufacturing, and certification complicate deployment timelines and costs. Compounding this, upfront capital costs for SMR projects have proven substantially higher than early estimates. The report notes that of the four SMRs currently operating worldwide — two in Russia, one in China, and one in Japan — all four have exceeded their originally projected budgets, underscoring the cost unpredictability still facing the sector.
Segmentation Highlights
By module configuration, multi-module systems dominate, expected to hold roughly 64% of the market in 2026 thanks to their flexibility in scaling output and pairing with renewable sources, while single-module systems are the faster-growing category, driven by uses in transportation, heating, and hydrogen production. By power output, the 101–200 MW range leads with an estimated 44.6% share in 2026, reflecting heavier industrial demand, while sub-100 MW units are growing quickly on the back of desalination and commercial building applications. On technology, water-cooled designs are projected to account for about 72% of the market in 2026 due to their thermal efficiency and quieter operation, whereas gas-cooled systems are gaining ground for their compact footprint. By application, industrial use leads with roughly 40.6% share, covering heating, petrochemicals, and steel production, while power generation is the fastest-growing application and desalination is expanding notably in Russia and China.
Regional Insights
Russia held the largest regional share in 2025, supported by strong industrial and power-generation demand, with about 35 MW of twin reactors already operating. China ranks as the second-largest market, valued near $2.09 billion in 2025, propelled by state-backed nuclear initiatives. Japan is scaling up SMR adoption as part of a broader plan to raise nuclear power's share of its energy mix to 20% by 2040. Elsewhere, the U.S., U.K., Canada, and Australia are advancing new SMR projects, with the U.S. continuing to lead global nuclear electricity output.
Competitive Landscape
The market remains fragmented, featuring both established players and specialized developers. Companies named in the report include NuScale Power, Terrestrial Energy, ThorCon Power, Xenergy, Westinghouse Electric, Rolls-Royce, Oklo, Holtec International, ARC Nucleare, Babcock International, and Assystem, among others. Recent developments cited include Google's late-2024 agreement to develop a fleet of SMRs for its AI data centers, Amazon's nuclear energy partnerships announced around the same period, and India's plans to expand its nuclear reactor base as part of a broader push toward 100 GW of nuclear capacity by 2047.
Outlook
Taken together, the data points to a market shaped by rising clean-energy demand, especially from data-center and AI-driven electricity consumption, tempered by regulatory fragmentation and cost overruns on early projects. With a 106-page report covering the 2021–2034 study period, Fortune Business Insights positions the SMR sector as a steadily growing, if still maturing, segment of the broader nuclear power industry.