The Public Utility Data Liberation (PUDL) project is an open-source data pipeline providing free, up to date, version-controlled and analysis-ready energy data products based on three decades of data reported to federal agencies. Its long-term vision is an open-source PUDL ecosystem that: 1) provides equitable access to high-quality energy data; 2) serves as a community repository of well-documented, reproducible data cleaning and analysis pipelines essential to energy system research and advocacy; 3) is accessible to users working with a variety of different tooling (e.g., Excel); and 4) is an inclusive and welcoming environment for users and contributors.