Center for Power Issues and Initiatives

Interactive public-interest research

CPII
Data Lab

Four historical lenses

Physical flows, historical ownership, public balance sheets and power-system performance—each grounded in the supplied source series.

Read the system from different sides.

The tools are designed as companions rather than a single merged dataset. Their years, units, definitions and analytical claims remain distinct. No observations after the supplied coverage periods have been inferred.

Historical coverage

The time-series tools end in 2022, 2020 and 2020; the ownership explorer uses mixed field vintages exactly as identified in its supplied workbook.

Separate source frames

Units and concepts differ across tools. The site does not silently merge or reconcile them into a single series.

Downloadable records

Each tool exposes its underlying records through a table, CSV download, or both.