Microsoft is investing in the restart of Three Mile Island's Unit 1, alongside other tech giants like Google, Amazon, and Meta, to power their expanding artificial intelligence operations with emission-free nuclear energy. While renewable sources like wind and solar can also contribute to hydrogen production, nuclear power offers the advantage of providing constant low-CO2 electricity, crucial for commercial-scale operations that run 24/7. The article highlights the potential of nuclear energy in curbing carbon emissions by powering chemical processes, such as hydrogen production, which can be used as a clean fuel alternative in various industries. Despite challenges in current hydrogen production methods, like electrolysis requiring significant electricity input, the integration of nuclear energy could offer a more sustainable approach. With the need for further research and development in nuclear technologies, such as thorium-fueled reactors and SMRs, the vision of using nuclear energy to decarbonize key sectors like steelmaking is promising. The article suggests that leveraging the financial contributions of tech companies in nuclear energy projects could pave the way for broader decarbonization efforts in the future.