# PUDL

> PUDL 2026.10.1.dev2 documentation


2016-2026, Catalyst Cooperative, CC-BY-4.0

## Pages in this subsection

- [Methodology](index.html.md): This section of the PUDL documentation describes our methodologies for more involved
- [Entity Resolution](entity_resolution.html.md): Many of the datasets PUDL processes report the same information about individual
- [Timeseries Imputation](timeseries_imputation.html.md): In energy systems there are many instances of correlated timeseries data that have some
- [SEC 10-K Ownership Data Extraction Modeling](sec10k_modeling.html.md): Utilities are often part of a nested hierarchy of holding companies and their
- [Generator Operational Characteristics](operational_characteristics.html.md): Production cost models, capacity expansion models, and other power system planning

## Optional

- [Top-level llms.txt](../llms.txt): Complete documentation index.