KC Mares, a data center power expert with over 25 years of experience, shares insights into the evolution of power solutions for data centers. He discusses the shift toward renewable energy sources like solar and wind, as well as the role of natural gas and on-site generation as cleaner alternatives. The conversation also touches on the potential of nuclear energy, efficiency metrics like PUE, and the evolving energy landscape. KC emphasizes the importance of innovative energy solutions to tackle the growing demands and challenges of the industry.