The surge in artificial intelligence (AI) has significantly increased the power demand for data centers, prompting industry giants to invest in innovative energy solutions to meet sustainability goals. Companies like Amazon, Microsoft, Meta, and Google are leading the charge by funding wind and solar projects globally. The sector is witnessing a shift towards sustainable energy sources like small modular nuclear reactors, hydrogen and fuel cells, enhanced geothermal systems, and grid-scale Li-ion batteries. These developments are crucial as data centers seek to reduce carbon emissions and ensure a reliable power supply. New installations of solar and wind power now compete favorably with fossil fuels, marking a significant shift from a decade ago. Data center operators are urged to invest in early-stage carbon-free energy solutions to secure long-term cost savings and decrease energy expenses. According to IDTechEx, the global data center industry is expected to save $150 billion by 2035 through the adoption of low-carbon energy sources. Among the emerging technologies gaining prominence are small modular nuclear reactors, which promise cost-effectiveness and shorter construction times. However, widespread adoption hinges on technical advancements and regulatory support. Hydrogen and fuel cells are highlighted as essential components of the energy transition, with solid oxide fuel cells emerging as a reliable source of continuous power. These fuel cells can run on low-carbon hydrogen, offering a sustainable alternative to natural gas. Data centers are increasingly exploring the potential of enhanced geothermal technologies, supported by corporations like Google and Meta, to expand the number of viable geothermal sites. Additionally, grid-scale Li-ion batteries are playing a vital role in enhancing energy storage capabilities and enabling prolonged reliance on solar and wind power. With a focus on performance characteristics such as storage duration and energy density, industry players are scaling up battery technologies to meet the evolving demands of data center operations. The convergence of these innovative energy solutions signals a positive trajectory towards a more sustainable and efficient future for the data center industry.