Radiation Shielding and Nuclear Energy for AI Data Centres
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Mars Metal Company/MarShield, Burlington, ON
Posted on May 18, 2026
Data centres are driving a new wave of electricity demand that is pushing owners, planners, and engineers to look harder at clean power sources. The International Energy Agency says electricity generation used to supply data centres is projected to grow from 460 TWh in 2024 to more than 1,000 TWh by 2030. At the same time, the IAEA notes that major tech companies are actively looking at advanced nuclear technologies such as small modular reactors (SMRs) to meet rising power needs.
As various SMR designs mature, obtain regulatory approvals, and become practical options for large-scale AI power supply; the question becomes what it takes to provide optimal radiation shielding solutions for SMRs and new nuclear reactors without compromising safety, compliance, or project timelines.
What You Will Learn:
Radiation shielding plays a central role in safely supporting nuclear power generation for AI data centre demand. In this article, you will learn:
- Why nuclear energy and SMRs are being considered for large-scale AI power needs.
- What shielding materials are used in nuclear energy applications, including lead, high-density concrete, tungsten alloys, steel, and also borated polymers.
- How lead pours, interlocking lead bricks, and high-density concrete blocks support different shielding requirements.
- What design challenges engineers must consider when planning shielding for nuclear power facilities.
- What to look for in a nuclear shielding partner, from regulatory alignment to lifecycle support.
- How MarShield supports nuclear power facility development with custom shielding solutions.
Why Does Nuclear Energy Make Sense for AI Data Centres?
AI data centres require dependable, large-scale power to support continuous operation and growing computational demand. These facilities are defined by:
- high power density, often 50 to 150 MW per site and growing
- strict uptime requirements of 99.999% or higher
- predictable but also non-negotiable load demand
Nuclear power is well suited to meet these requirements. It provides high-reliability baseload electricity that is available around the clock, independent of weather conditions. Unlike fossil fuels, nuclear energy offers more stable long-term costs and low-carbon generation, helping operators balance performance, sustainability, and cost predictability.
While renewable energy sources such as wind and solar play an important role, their intermittency often requires additional storage or backup systems. This can increase complexity and cost, particularly for facilities that cannot tolerate interruptions in power supply.
Source Destination: https://marshield.com/nuclear-energy-for-ai-data-centers
