core_eia923__monthly_generation_fuel
Monthly time series of generation and fuel consumption by fuel and prime mover.
- 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, report_date, prime_mover_code, energy_source_code
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
This data can't be easily linked to individual boilers, generators, and generation units, but it is provides the most complete coverage of fuel consumption and electricity generation for the entire generation fleet. We use the primary fuels and prime movers reported for each generator along with their capacities to attribute fuel consumption and generation when it isn't directly reported in the core_eia923__monthly_generation and core_eia923__monthly_boiler_fuel tables in order to calculate capacity factors, heat rates, and the marginal cost of electricity.
The table makes a distinction between all fuel consumed and fuel consumed for electricity generation because some units are also combined heat and power (CHP) units, and also provide high temperature process heat at the expense of net electricity generation.
Columns
Date reported.
The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.
A 2-3 letter code indicating the energy source (e.g. fuel type) associated with the record.
Simplified fuel type code used in PUDL
A partial aggregation of the reported fuel type codes into larger categories used by EIA in, for example, the Annual Energy Review (AER) or Monthly Energy Review (MER). Two or three letter alphanumeric.
Code for the type of prime mover (e.g. CT, CG)
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.
Consumption for electric generation of the fuel type in physical unit.
Heat content of the fuel in millions of Btus per physical unit.
Total consumption of fuel in physical unit, year to date. Note: this is the total quantity consumed for both electricity and, in the case of combined heat and power plants, process steam production.
Total consumption of fuel to produce electricity, in physical unit, year to date.
Net electricity generation for the specified period in megawatt-hours (MWh).
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.
core_eia923__monthly_generation_fuel_nuclear
Monthly time series of generation and fuel consumption of nuclear generation units by fuel and prime mover.
- 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, report_date, nuclear_unit_id, energy_source_code, prime_mover_code
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
This data is originally reported alongside similar information for fossil fuel plants, but the nuclear data is reported by (nuclear) generation unit rather than fuel type and prime mover, and so has a different primary key.
Columns
The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.
Date reported.
For nuclear plants only, the unit number .One digit numeric. Nuclear plants are the only type of plants for which data are shown explicitly at the generating unit level.
A 2-3 letter code indicating the energy source (e.g. fuel type) associated with the record.
Simplified fuel type code used in PUDL
A partial aggregation of the reported fuel type codes into larger categories used by EIA in, for example, the Annual Energy Review (AER) or Monthly Energy Review (MER). Two or three letter alphanumeric.
Code for the type of prime mover (e.g. CT, CG)
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.
Consumption for electric generation of the fuel type in physical unit.
Heat content of the fuel in millions of Btus per physical unit.
Total consumption of fuel in physical unit, year to date. Note: this is the total quantity consumed for both electricity and, in the case of combined heat and power plants, process steam production.
Total consumption of fuel to produce electricity, in physical unit, year to date.
Net electricity generation for the specified period in megawatt-hours (MWh).
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.