Calpine is one of North America’s largest power generation companies, with almost 80 generation facilities, including solar battery and geothermal plants. With AVEVA eDNA enterprise data management system deployed across Calpine's generation facilities, the sunsetting of the outdated platform provided both a daunting hurdle and a golden opportunity to modernize their enterprise data infrastructure to support predictive analytics and community data sharing solutions. Having now successfully migrated almost half of their sites and over 300 years of data, the Calpine migration approach optimizes more than just the cumbersome data migration. Learn how calculations, reports, visualizations, and infrastructure improvements are addressed as part of this comprehensive migration strategy. This presentation discusses the struggles and successes of a complex migration and the roadmap for the future of Calpine's cloud-hosted centralized data infrastructure leveraging the AVEVA PI Data Infrastructure and AVEVA Predictive Analytics.