core_eia923__monthly_boiler_fuel
Monthly time series of boiler fuel consumption and emissions.
- 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:
EIA Form 923 -- Power Plant Operations Report (Schedule 3)
- Primary key:
plant_id_eia, boiler_id, energy_source_code, prime_mover_code, report_date
Usage Warnings
Date column arbitrarily uses the first of the month.
A small number of respondents only report annual fuel consumption, and all of it is reported in December.
Additional Details
Reports the quantity of each type of fuel consumed by each boiler on a monthly basis, as well as the sulfur and ash content of those fuels. Fuel quantity is reported in standard EIA fuel units (tons, barrels, Mcf). Heat content per unit of fuel is also reported, making this table useful for calculating the thermal efficiency (heat rate) of various generation units.
This table provides better coverage of the entire fleet of generators than the core_eia923__monthly_generation_fuel table, but the fuel consumption reported here is not directly associated with a generator. This complicates the heat rate calculation, since the associations between individual boilers and generators are incomplete and can be complex.
Columns
The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.
Alphanumeric boiler ID.
A 2-3 letter code indicating the energy source (e.g. fuel type) associated with the record.
Code for the type of prime mover (e.g. CT, CG)
Simplified fuel type code used in PUDL
Date reported.
Consumption of the fuel type in physical unit. Note: this is the total quantity consumed for both electricity and, in the case of combined heat and power plants, process steam production.
Heat content of the fuel in millions of Btus per physical unit.
Sulfur content percentage by weight to the nearest 0.01 percent.
Ash content percentage by weight to the nearest 0.1 percent.
Maturity of the source data published by EIA that is reflected in this record. EIA releases data incrementally over time, including monthly updates, annual year-to-date updates, provisional early releases of annual data, and final annual release data that is not expected to change further. Records sourced from multiple upstream EIA datasets may have no well defined data maturity. Records whose values have been inferred within PUDL will also have no data maturity.