core_ferc1__yearly_depreciation_by_function_sched219
Annual time series of ending balances in accumulated provision for depreciation of electric utility plant.
- Most-recent data:
2025
- Processing:
Data has been cleaned and organized into well-modeled tables that serve as building blocks for downstream wide tables and analyses.
- Source:
FERC Form 1 -- Annual Report of Major Electric Utilities (Schedule 219 - Section B)
- Primary key:
utility_id_ferc1, report_year, depreciation_type, plant_function, plant_status, utility_type
Usage Warnings
Some columns contain subtotals; use caution when choosing columns to aggregate.
FERC data is notoriously difficult to extract cleanly, and often contains free-form strings, non-labeled total rows and lack of IDs. See Notable Irregularities for details.
Additional Details
Electric utility plant refers to FERC Account 108. Section B includes the Balances at End of Year According to Functional Classification (plant_function).
Columns
PUDL-assigned utility ID, identifying a FERC1 utility. This is an auto-incremented ID and is not expected to be stable from year to year.
Four-digit year in which the data was reported.
Type of depreciation provision within FERC Account 108, including cost ofremoval, depreciation expenses, salvage, cost of retired plant, etc.
Functional role played by utility plant (steam production, nuclear production, distribution, transmission, etc.).
Utility plant financial status (in service, future, leased, total).
Listing of utility plant types. Examples include Electric Utility, Gas Utility, and Other Utility.
Account balance at end of year.
Identifier indicating original FERC Form 1 source record. format: {table_name}_{report_year}_{report_prd}_{respondent_id}_{spplmnt_num}_{row_number}. Unique within FERC Form 1 DB tables which are not row-mapped.
Indication of whether a column is a credit or debit, as reported in the XBRL taxonomy.
Indicates whether the value reported in the row is calculated, or uniquely reported within the table.