The global energy sector is undergoing a transformation as artificial intelligence, industrial expansion, and digitalisation drive unprecedented electricity demand. At the centre of this shift are Small Modular Reactors (SMRs) — compact nuclear power plants designed to deliver clean, reliable, and scalable energy.
Unlike conventional reactors, SMRs typically generate under 300 megawatts (MW) of electricity. Their modular design enables factory assembly, transportation by road or rail, and deployment in diverse environments, from remote regions to island communities. Occupying just 15–17 hectares, each unit integrates nuclear fuel, pumps, and steam generators, delivering around 55 MW of electricity and up to 200 MW of thermal energy.
Why SMRs Stand Out
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Flexible deployment: Suitable for areas currently dependent on diesel power.
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Enhanced safety: Uranium enrichment capped at 20%, accident-tolerant fuel, and both passive and active safety systems.
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Sustainability: Units can operate for five to six years without refuelling.
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Cost-efficiency: Faster construction and lower capital investment compared to large-scale nuclear plants.
China Leads, Russia Builds, India Accelerates
China currently operates the world’s largest SMR programme, with a 100 MW land-based test reactor already commissioned. Russia, leveraging decades of nuclear expertise on icebreakers, is building a land-based SMR in the Yakutia region and has signed agreements to supply units to Uzbekistan.
India is positioning itself as the next major player. The Bhabha Atomic Research Centre (BARC) is developing the Bharat SMR, aiming to support the country’s target of 100 gigawatts of nuclear power capacity by 2070. The focus is on localisation, building supply chains, and encouraging private sector participation to expand both domestic production and green energy capacity.
The Global Race for SMRs
While France, the United States, and other countries are developing their own SMRs, China and Russia currently dominate with operational and export-ready projects. India, however, is accelerating efforts to ensure it does not lag in the global nuclear race.
Powering the Future
With rising demand from AI-driven data centres, industrial hubs, and clean energy goals, SMRs are emerging as a critical solution. Compact, safer, and more versatile than traditional nuclear plants, they could become the backbone of next-generation sustainable energy systems.
As India, China, and Russia push ahead, the global SMR race is set to redefine the future of nuclear energy — making these compact reactors central to powering the world’s digital and industrial revolution.
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