out_eia__monthly_generators
Return to SearchMonthly time series of all generator attributes including calculated capacity factor, heat rate, fuel cost per MMBTU and fuel cost per MWh.
- Most-recent data:
2026
- Processing:
Data has been expanded into a wide/denormalized format, with IDs and codes accompanied by human-readable names and descriptions.
- Source:
EIA -- Mix of multiple EIA Forms
- Primary key:
report_date, plant_id_eia, generator_id
Usage Warnings
Contains estimated values.
Due to coverage problems in other tables, some generators have heat rate estimates but not fuel cost estimates.
Not all columns are originally reported in or calculable from the input tables. Expect nulls.
Data has been drawn from several EIA sources which are not always consistent with each other, and PUDL chooses the most consistent or relevant value to facilitate cross-referencing even if that means some values will differ from the raw sources. See Harvesting for details, and see Entity Resolution Methodology for a fuller conceptual overview.
Contains information from multiple raw inputs.
Additional Details
This table includes all monthly attributes for all generators reported to EIA-860 and EIA-923.
To provide a complete picture of generator data, this table compiles data from many different EIA tables, including directly reported, imputed and calculated columns. We suggest using this table if you want to explore monthly attributes about generators and would rather use a more complete and denormalized table. If you are more interested in the originally reported values, we recommend searching for core_eia with the column you are most interested in.
The calculations of capacity factor, heat rate, fuel cost per MMBTU and fuel cost per MWh are based on the allocation of net generation reported on the basis of plant, prime mover and energy source to individual generators - which comes from this table: out_eia923__monthly_generation_fuel_by_generator.
Heat rates by generator-monthly are estimated by using allocated estimates for per-generator net generation and fuel consumption as well as the core_eia923__monthly_boiler_fuel table, which reports fuel consumed by boiler. Heat rates are necessary to estimate the amount of fuel consumed by a generation unit, and thus the fuel cost per MWh generated.
Plant specific fuel prices are taken from the core_eia923__fuel_receipts_costs table, which only has ~70% coverage, leading to some generators with heat rate estimates still lacking fuel cost estimates.
This table inherits canonicalized values for generators, plants, and utilities. EIA reports many attributes in many different tables across EIA-860 and EIA-923. In order to compile tidy, well-normalized database tables, PUDL collects all instances of these values and and chooses a canonical value. By default, PUDL chooses the most consistently reported value of a given attribute as long as it is at least 70% of the given instances reported. If an attribute was reported inconsistently across the original EIA tables, then it will show up as a null value. See /methodology/entity_resolution for a conceptual overview of this process.
Columns
The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.
Generator ID is usually numeric, but sometimes includes letters. Make sure you treat it as a string!
Date reported.
Dynamically assigned PUDL unit id. WARNING: This ID is not guaranteed to be static long term as the input data and algorithm may evolve over time.
A manually assigned PUDL plant ID. May not be constant over time.
Plant name.
The EIA Utility Identification number.
A manually assigned PUDL utility ID. May not be stable over time.
The name of the utility.
EIA short code identifying a balancing authority. May include Canadian and Mexican BAs.
Name of the balancing authority.
High level description of the technology used by the generator to produce electricity.
The code representing the most predominant type of energy that fuels the generator.
Code for the type of prime mover (e.g. CT, CG)
Date the generator began commercial operation. If harvested values are inconsistent, we default to using the most recently reported date.
Date of the scheduled or effected retirement of the generator.
The operating status of the asset. For generators this is based on which tab the generator was listed in in EIA 860.
Total installed (nameplate) capacity, in megawatts.
Simplified fuel type code used in PUDL
Planned effective date of the scheduled retirement of the generator.
Fraction of potential generation that was actually reported for a plant part. Energy generated over time period / nameplate capacity * time period (hours/years/etc.).
Indicates the source of the values in the fuel_cost_per_mmbtu column. The fuel cost either comes directly from the EIA forms (original), was filled in from the EIA's API using state-level averages (eiaapi), was filled in using a rolling average (rolling_avg) or When the records get aggregated together and contain multiple sources (mixed).
Average fuel cost per MMBTU of heat content in nominal USD.
Derived from MCOE, a unit level value. Average fuel cost per MWh of heat content in nominal USD.
Fuel content per unit of electricity generated. Coming from MCOE calculation.
Net electricity generation for the specified period in megawatt-hours (MWh).
Total annual reported fuel costs for the plant part. Includes costs from all fuels.
Total annual heat content of fuel consumed by a plant part record in the plant parts list.
Indicates whether the generator is associated with a combined heat and power system
The source from where the unit_id_pudl is compiled. The unit_id_pudl comes directly from EIA 860, or string association (which looks at all the boilers and generators that are not associated with a unit and tries to find a matching string in the respective collection of boilers or generator), or from a unit connection (where the unit_id_eia is employed to find additional boiler generator connections).
Can this generator operate while bypassing the heat recovery steam generator?
Indicates whether the generator uses carbon capture technology.
Name of the city.
Whether the generator can co-fire fuels.
County name.
The most recently updated effective date on which the generator is scheduled to start operation
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.
Indicate whether the generator can deliver power to the transmission grid.
Whether the generator is considered distributed generation
Indicates whether the unit has duct-burners for supplementary firing of the turbine exhaust gas
Primary mode of transport for energy source 1.
Secondary mode of transport for energy source 1.
Tertiary mode of transport for energy source 1.
Primary mode of transport for energy source 2.
Secondary mode of transport for energy source 2.
Tertiary mode of transport for energy source 2.
The code representing the second most predominant type of energy that fuels the generator
The code representing the third most predominant type of energy that fuels the generator
The code representing the fourth most predominant type of energy that fuels the generator
The code representing the fifth most predominant type of energy that fuels the generator
The code representing the sixth most predominant type of energy that fuels the generator
Energy storage capacity in MWh (e.g. for batteries).
Indicates whether or not a generator is a qualifying FERC cogeneration facility.
Indicates whether the generator uses fluidized bed technology
A count of how many different simple energy sources there are associated with a generator.
Latitude of the plant's location, in degrees.
Longitude of the plant's location, in degrees.
The minimum load at which the generator can operate at continuosuly.
Whether the generator can burn multiple fuels.
The nameplate power factor of the generator.
Generation capacity in megawatts of direct current that is subject to a net metering agreement. Typically used for behind-the-meter solar PV.
Indicates whether a fuel switching generator can switch fuels while operating.
The operating status of the asset.
The date the generator was originally scheduled to be operational
Indicates whether the generator uses other combustion technologies
Planned effective date that the generator is scheduled to enter commercial operation after any other planned modification is complete.
Indicates whether there are there other modifications planned for the generator.
Whether any part of generator is owned by a nonutilty
Identifies the ownership for each generator.
Planned effective month that the generator is scheduled to enter operation after the derate modification.
New energy source code for the planned repowered generator.
Indicates whether there are any planned capacity uprates/derates, repowering, other modifications, or generator retirements scheduled for the next 5 years.
Decrease in summer capacity expected to be realized from the derate modification to the equipment.
Increase in summer capacity expected to be realized from the modification to the equipment.
Decrease in winter capacity expected to be realized from the derate modification to the equipment.
Increase in winter capacity expected to be realized from the uprate modification to the equipment.
The expected new namplate capacity for the generator.
New prime mover for the planned repowered generator.
Planned effective date that the generator is scheduled to enter operation after the repowering is complete.
Planned effective date that the generator is scheduled to enter operation after the uprate modification.
Indicates whether the generator was previously reported as indefinitely postponed or canceled
Indicates whether the generator uses pulverized coal technology
Reactive Power Output (MVAr)
The designation used to identify the price node in RTO/ISO Locational Marginal Price reports
The designation used to report the specific location of the wholesale sales transactions to FERC for the Electric Quarterly Report
Indicates whether the generator is part of a solid fuel gasification system
The code representing the first, second, third or fourth start-up and flame stabilization energy source used by the combustion unit(s) associated with this generator.
The code representing the first, second, third or fourth start-up and flame stabilization energy source used by the combustion unit(s) associated with this generator.
The code representing the first, second, third or fourth start-up and flame stabilization energy source used by the combustion unit(s) associated with this generator.
The code representing the first, second, third or fourth start-up and flame stabilization energy source used by the combustion unit(s) associated with this generator.
Two letter US state abbreviation.
Indicates whether the generator uses stoker technology
Physical street address.
Indicates whether the generator uses subcritical technology
Whether the summer capacity value was an estimate
The net summer capacity.
EIA estimated summer capacity (in MWh).
Indicates whether the generator uses supercritical technology
Whether the generator can switch between oil and natural gas.
Indicates whether standby generators (SB status) can be synchronized to the grid.
The minimum amount of time required to bring the unit to full load from shutdown.
IANA timezone name
If the generator is associated with a combined heat and power system, indicates whether the generator is part of a topping cycle or a bottoming cycle
Number of wind turbines, or hydrokinetic buoys.
Number of wind turbines, or hydrokinetic buoys.
Indicates whether the generator uses ultra-supercritical technology
The date when the uprate or derate was completed.
Was an uprate or derate completed on this generator during the reporting year?
Whether the winter capacity value was an estimate
The net winter capacity.
EIA estimated winter capacity (in MWh).
Five digit US Zip Code.