core_eia860__scd_generators
Slowly changing dimension (SCD) table describing attributes of generators which may vary from year to year. Compiled from across EIA-860 and EIA-923 data.
- Most-recent data:
2026
- 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 860 -- Annual Electric Generator Report
- Primary key:
plant_id_eia, generator_id, report_date
Usage Warnings
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 is one of two tables where canonical values for generators are set. It contains values which are expected to vary slowly, while core_eia__entity_generators contains those expected to remain fixed. 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. All tables downstream of this one inherit the canonical values established here.
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!
The EIA Utility Identification number.
Date reported.
The operating status of the asset.
The operating status of the asset. For generators this is based on which tab the generator was listed in in EIA 860.
Identifies the ownership for each generator.
Total installed (nameplate) capacity, in megawatts.
The net summer capacity.
Whether the summer capacity value was an estimate
The net winter capacity.
Whether the winter capacity value was an estimate
Generation capacity in megawatts of direct current that is subject to a net metering agreement. Typically used for behind-the-meter solar PV.
Energy storage capacity in MWh (e.g. for batteries).
Code for the type of prime mover (e.g. CT, CG)
The code representing the most predominant type of energy that fuels the generator.
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
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.
Simplified fuel type code used in PUDL
Whether the generator can burn multiple fuels.
Indicate whether the generator can deliver power to the transmission grid.
Whether the generator is considered distributed generation
Indicates whether standby generators (SB status) can be synchronized to the grid.
Number of wind turbines, or hydrokinetic buoys.
Indicates whether there are any planned capacity uprates/derates, repowering, other modifications, or generator retirements scheduled for the next 5 years.
Increase in summer capacity expected to be realized from the modification to the equipment.
Increase in winter capacity expected to be realized from the uprate modification to the equipment.
Planned effective date that the generator is scheduled to enter operation after the uprate modification.
Decrease in summer capacity expected to be realized from the derate modification to the equipment.
Decrease in winter capacity expected to be realized from the derate modification to the equipment.
Planned effective month that the generator is scheduled to enter operation after the derate modification.
New prime mover for the planned repowered generator.
New energy source code for the planned repowered generator.
Planned effective date that the generator is scheduled to enter operation after the repowering is complete.
Indicates whether there are there other modifications planned for the generator.
Planned effective date that the generator is scheduled to enter commercial operation after any other planned modification is complete.
Planned effective date of the scheduled retirement of the generator.
Indicates whether the generator uses carbon capture technology.
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.
High level description of the technology used by the generator to produce electricity.
Number of wind turbines, or hydrokinetic buoys.
The minimum amount of time required to bring the unit to full load from shutdown.
The expected new namplate capacity for the generator.
Whether the generator can co-fire fuels.
Whether the generator can switch between oil and natural gas.
The nameplate power factor of the generator.
The minimum load at which the generator can operate at continuosuly.
Was an uprate or derate completed on this generator during the reporting year?
The date when the uprate or derate was completed.
The most recently updated effective date on which the generator is scheduled to start operation
EIA estimated summer capacity (in MWh).
EIA estimated winter capacity (in MWh).
Date of the scheduled or effected retirement of the generator.
Whether any part of generator is owned by a nonutilty
Reactive Power Output (MVAr)
Indicates whether or not a generator is a qualifying FERC cogeneration facility.
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_eia860__scd_generators_multifuel
Slowly changing dimension (SCD) table describing attributes of generators that may vary from year to year, pertaining to fuel-switching and the use of multiple fuels.
- Most-recent data:
2024
- 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 860 -- Annual Electric Generator Report (Schedule 3)
- Primary key:
report_date, utility_id_eia, generator_id, plant_id_eia
Columns
Date reported.
The EIA Utility Identification number.
The name of the utility.
The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.
Plant name.
Two letter US state abbreviation.
County name.
Generator ID is usually numeric, but sometimes includes letters. Make sure you treat it as a string!
The operating status of the asset.
High level description of the technology used by the generator to produce electricity.
Code for the type of prime mover (e.g. CT, CG)
EIA assigned sector name, corresponding to high level NAICS sector, designated by the primary purpose, regulatory status and plant-level combined heat and power status
EIA assigned sector ID, corresponding to high level NAICS sector, designated by the primary purpose, regulatory status and plant-level combined heat and power status
Total installed (nameplate) capacity, in megawatts.
The net summer capacity.
The net winter capacity.
The most recently updated effective date on which the generator is scheduled to start operation
The code representing the most predominant type of energy that fuels the generator.
The code representing the second most predominant type of energy that fuels the generator
Whether the generator can burn multiple fuels.
Whether the generator can co-fire fuels.
The codes representing the type of fuel that will be co-fired.
The codes representing the type of fuel that will be co-fired.
The codes representing the type of fuel that will be co-fired.
The codes representing the type of fuel that will be co-fired.
The codes representing the type of fuel that will be co-fired.
The codes representing the type of fuel that will be co-fired.
Whether the generator can switch between oil and natural gas.
The time required to switch the generator from running 100 percent oil to running 100 percent natural gas.
The time required to switch the generator from running 100 percent natural gas to running 100 percent oil.
Indicates whether a fuel switching generator can switch fuels while operating.
The maximum net summer output achievable when running on natural gas.
The maximum net summer output achievable when running on oil.
The maximum net winter output achievable when running on natural gas.
The maximum net summer output achievable when running on oil.
Whether there are factors that limit the generator's ability to switch between oil and natural gas.
Whether limited on-site fuel storage is a factor that limits the generator's ability to switch between oil and natural gas.
Whether air permit limits are a factor that limits the generator's ability to switch between oil and natural gas.
Whether there are factors other than air permit limits and storage that limit the generator's ability to switch between oil and natural gas.
Whether the generator can co-fire oil and gas.
Whether the generator can co-fire 100 oil.
The maximum oil heat input (percent of MMBTUs) expected for proposed unit when co-firing with natural gas
The maximum output (net MW) expected for proposed unit, when making the maximum use of oil and co-firing natural gas.
Whether a unit is able to switch fuels.
Whether there are factors that limit the operation of the generator when running on 100 percent oil
The codes representing the type of fuel that will be able to be used as a sole source of fuel for this unit.
The codes representing the type of fuel that will be able to be used as a sole source of fuel for this unit.
The codes representing the type of fuel that will be able to be used as a sole source of fuel for this unit.
The codes representing the type of fuel that will be able to be used as a sole source of fuel for this unit.
The codes representing the type of fuel that will be able to be used as a sole source of fuel for this unit.
The codes representing the type of fuel that will be able to be used as a sole source of fuel for this unit.
core_eia860__scd_generators_solar
Slowly changing dimension (SCD) table describing attributes of solar generators that may vary from year to year.
- Most-recent data:
2024
- 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 860 -- Annual Electric Generator Report (Schedule 3.3)
- Primary key:
plant_id_eia, generator_id, report_date
Additional Details
This table includes only those values that are unique to solar generators. The rest of the columns that are reported in the EIA-860 Solar tabs are included in core_eia860__scd_generators and core_eia__entity_generators.
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.
The net capacity of this photovoltaic generator in direct current under standard test conditions (STC) of 1000 W/m^2 solar irradiance and 25 degrees Celsius PV module temperature. This was only reported in 2013 and 2014.
The DC megawatt capacity that is part of a net metering agreement.
Indicates if the output from this generator is part of a net metering agreement.
Indicates if the output from this generator is part of a virtual net metering agreement.
The DC capacity in MW that is part of a virtual net metering agreement.
Indicates the azimuth angle of the unit for fixed tilt or single-axis technologies.
Indicates the tilt angle of the unit for fixed tilt or single-axis technologies.
Indicates whether lenses or mirrors are used at this solar generating unit.
Indicates whether single-axis tracking technologies are used at this solar generating unit.
Indicates whether dual-axis tracking technologies are used at this solar generating unit.
Indicates whether fixed tilt technologies are used at this solar generating unit.
Indicates whether east west fixed tilt technologies are used at this solar generating unit.
Indicates whether parabolic trough technologies s are used at this solar generating unit.
Indicates whether linear fresnel technologies are used at this solar generating unit.
Indicates whether power towers are used at this solar generating unit.
Indicates whether dish engines are used at this solar generating unit.
Indicates whether other solar technologies are used at this solar generating unit.
Indicates whether any solar photovoltaic panels at this generator are made of crystalline silicon.
Indicates whether any solar photovoltaic panels at this generator are made of thin-film amorphous silicon (A-Si).
Indicates whether any solar photovoltaic panels at this generator are made of thin-film cadmium telluride (CdTe).
Indicates whether any solar photovoltaic panels at this generator are made of thin-film copper indium gallium diselenide (CIGS).
Indicates whether any solar photovoltaic panels at this generator are made of other thin-film material.
Indicates whether any solar photovoltaic panels at this generator are made of other materials.
Indicates whether bifacial solar panels are used at this solar generating unit.
core_eia860__scd_generators_wind
Slowly changing dimension (SCD) table describing attributes of wind generators that may vary from year to year.
- Most-recent data:
2024
- 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 860 -- Annual Electric Generator Report (Schedule 3.2)
- Primary key:
plant_id_eia, generator_id, report_date
Additional Details
This table includes only those values that are unique to wind generators. The rest of the columns that are reported in the EIA-860 Wind tabs are included in core_eia860__scd_generators and core_eia__entity_generators.
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.
Average annual wind speed that turbines at this wind site were designed for.
The Federal Aviation Administration (FAA) obstacle number assigned to this generator. If more than one obstacle number exists, the one that best represents the turbines. References the obstacle numbers reported in the FAA's Digital Obstacle File: https://www.faa.gov/air_traffic/flight_info/aeronav/digital_products/dof/ This field was only reported from 2013 through 2015.
Name of predominant manufacturer of turbines at this generator.
Predominant model number of turbines at this generator.
The hub height of turbines at this generator. If more than one value exists, the one that best represents the turbines.
The wind quality class for turbines at this generator. See table core_eia__codes_wind_quality_class for specifications about each class.
core_eia860__scd_generators_energy_storage
Slowly changing dimension (SCD) table describing attributes of energy storage which may vary from year to year.
- Most-recent data:
2024
- 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 860 -- Annual Electric Generator Report (Schedule 3)
- Primary key:
plant_id_eia, generator_id, report_date
Additional Details
This table includes only those values that are unique to energy storage. The rest of the columns that are reported in the EIA-860 Energy Storage tabs are included in core_eia860__scd_generators and core_eia__entity_generators.
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.
Maximum charge rate in MW.
Maximum discharge rate in MW.
A code representing the enclosure type that best describes where the generator is located.
The electro-chemical storage technology used for this battery applications.
The electro-chemical storage technology used for this battery applications.
The electro-chemical storage technology used for this battery applications.
The electro-chemical storage technology used for this battery applications.
Whether the energy storage device served arbitrage applications during the reporting year
Whether the energy storage device served backup power applications during the reporting year.
Whether the energy storage device served renewable firming applications during the reporting year.
Whether the energy storage device served frequency regulation applications during the reporting year.
Whether the energy storage device served load following applications during the reporting year.
Whether the energy storage device served load management applications during the reporting year.
Whether the this energy storage device served ramping / spinning reserve applications during the reporting year.
Whether the energy storage device served system peak shaving applications during the reporting year.
Whether the energy storage device served renewable firming applications during the reporting year.
Whether the energy storage device served voltage or reactive power support applications during the reporting year.
Whether the energy storage device was used to store excess wind/solar generation during the reporting year.
Indicates if this energy storage device is AC-coupled (means the energy storage device and the PV system are not installed on the same side of an inverter).
Indicates if this energy storage device is DC-coupled (means the energy storage device and the PV system are on the same side of an inverter and the battery can still charge from the grid).
Indicates if this energy storage device is DC tightly coupled (means the energy storage device and the PV system are on the same side of an inverter and the battery cannot charge from the grid).
Indicates if this energy storage device is independent (not coupled with another generators)
Indicate if the energy storage system is intended to support a specific substation, transmission or distribution asset.
Indicates if this energy storage device is intended for dedicated generator firming or storing excess generation of other units.
The EIA Plant ID of the primary unit whose generation this energy storage device is intended to firm or store.
The EIA Generator ID of the primary unit whose generation this energy storage device is intended to firm or store.
The EIA Plant ID of the secondary unit whose generation this energy storage device is intended to firm or store.
The EIA Generator ID of the secondary unit whose generation this energy storage device is intended to firm or store.
The EIA Plant ID of the tertiary unit whose generation this energy storage device is intended to firm or store.
The EIA Generator ID of the tertiary unit whose generation this energy storage device is intended to firm or store.