Date reported.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

A manually assigned PUDL plant ID. May not be constant over time.

Plant name.

The EIA utility Identification number for the owner company that is responsible for the day-to-day operations of the generator, not the operator utility.

The EIA utility Identification number for the operator utility.

A manually assigned PUDL utility ID for the owner company that is responsible for the day-to-day operations of the generator, not the operator utility. May not be stable over time.

The name of the EIA owner utility.

Generator ID is usually numeric, but sometimes includes letters. Make sure you treat it as a string!

Two letter ISO-3166 political subdivision code.

City of owner.

Three letter ISO-3166 country code.

Steet address of owner.

Zip code of owner.

Proportion of generator ownership attributable to this utility.

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.

Date reported.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

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.

A PUDL-generated ID used to distinguish emission control units in the same report year and plant id. This ID should not be used to track units over time or between plants.

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.

Short code indicating the type of emission control equipment installed.

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.

Mercury control identification number. This ID is not a unique identifier.

Nitrogen oxide control identification number. This ID is not a unique identifier.

Particulate matter control identification number. This ID is not a unique identifier.

Sulfur dioxide control identification number. This ID is not a unique identifier.

Indicates whether the emissions control equipment controls acid (HCl) gas.

The total cost to install a piece of emission control equipment.

The date a piece of emissions control equipment began operating. Derived from month and year columns in the raw data.

The expected or actual retirement date for a piece of emissions control equipment. Derived from month and year columns in the raw data.

Date reported.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Plant name.

EIA Identification code for cooling system (if multiple cooling systems are not distinguished by separate IDs, the word 'PLANT' is listed to encompass the cooling system for the entire plant)

The EIA Utility Identification number.

The name of the utility.

County name.

Two letter US state abbreviation.

Actual installed cost for the existing chlorine discharge control system or the anticipated cost to bring the chlorine discharge control system into commercial operation

Actual or projected in-service date for chlorine discharge control structures and equipment

Actual installed cost for the existing system or the anticipated cost to bring the total system into commercial operation

Operating status of cooling system

The actual or projected in-service datetime of this cooling system

Type of cooling system

Type of cooling system

Type of cooling system

Type of cooling system

Name of river, lake, or water source that cooling water is discharged into

Name of river, lake, or water source that provides cooling water

Maximum distance from shore to intake

Average distance below water surface to intake

Design cooling water flow rate at 100 percent load at in-take

Maximum distance from shore to outlet

Average distance below water surface to outlet

Percent of cooling load served by dry cooling components

The plant summer capacity associated with the operating generators at the plant

Actual installed cost for the existing cooling ponds or the anticipated cost to bring the cooling ponds into commercial operation

Cooling ponds actual or projected in-service date

Total surface area of cooling pond

Total volume of water in cooling pond

Maximum power requirement for cooling towers at 100 percent load

Code that describes types of steam plants from EIA 860. See steam_plant_types_eia table for more details.

Actual installed cost for the existing cooling towers or the anticipated cost to bring the cooling towers into commercial operation

Cooling towers actual or projected in-service date

Types of cooling towers at this plant

Types of cooling towers at this plant

Types of cooling towers at this plant

Types of cooling towers at this plant

Maximum design rate of water flow at 100 percent load for the cooling towers

Type of cooling water source

Name of water source associated with the plant.

Type of cooling water

Date reported.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Sulfur dioxide control identification number. This ID is not a unique identifier.

The EIA Utility Identification number.

The name of the utility.

Two letter US state abbreviation.

Two digit state FIPS code.

County name.

County ID from the Federal Information Processing Standard Publication 6-4.

The actual or projected in-service datetime of this flue gas desulfurization system

Operating status code for flue gas desulfurization equipment.

Indicates whether flue gas can bypass the flue gas desulfurization unit.

Is saleable byproduct recovered by the unit?

Indicates if there is a sludge pond associated with this unit.

Indicates whether the sludge pond is lined.

Annual pond and land fill requirements for flue gas desulfurization equipment.

Actual installed costs for the existing systems or the anticipated costs of structures and equipment to bring a planned flue gas desulfurization system into commercial operation.

Other actual installed costs for installation of a flue gas desulfurization unit or the anticipated other costs pertaining to the installation of a flue gas desulfurization unit.

Actual installed costs for the existing sludge transport and disposal systems or the anticipated costs of sludge transport and disposal systems to bring a planned system into commercial operation.

Total actual installed costs for the existing flue gas desulfurization unit or the anticipated costs to bring a planned flue gas desulfurization unit into commercial operation.

Total number of flue gas desulfurization unit scrubber trains operated at 100 percent load.

Total number of flue gas desulfurization unit scrubber trains.

Ratio of all flue gas that is entering the flue gas desulfurization unit.

Actual flue gas exit rate, in cubic feet per minute.

Flue gas exit temperature, in degrees Fahrenheit.

Sulfur dioxide emission rate when operating at 100 percent load (pounds per hour).

Type of sulfur dioxide control equipment.

Type of sulfur dioxide control equipment.

Type of sulfur dioxide control equipment.

Type of sulfur dioxide control equipment.

Designed removal efficiency for sulfur dioxide when operating at 100 percent load. Reported at the nearest 0.1 percent by weight of gases removed from the flue gas.

Design fuel specifications for ash when burning coal or petroleum coke (nearest 0.1 percent by weight).

Design fuel specifications for sulfur when burning coal or petroleum coke (nearest 0.1 percent by weight).

Type of sorbent used by this sulfur dioxide control equipment.

Type of sorbent used by this sulfur dioxide control equipment.

Type of sorbent used by this sulfur dioxide control equipment.

Type of sorbent used by this sulfur dioxide control equipment.

Name of flue gas desulfurization equipment manufacturer.

Code corresponding to name of flue gas desulfurization equipment manufacturer.

Code that describes types of steam plants from EIA 860. See steam_plant_types_eia table for more details.

The plant summer capacity associated with the operating generators at the plant

Name of water source associated with the plant.

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.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Alphanumeric boiler ID.

Date reported.

Date the boiler began or is planned to begin commercial operation.

EIA short code identifying boiler operational status.

Date of the scheduled or effected retirement of the boiler.

EIA short code indicating the standards under which the boiler is operating as described in the U.S. EPA regulation under 40 CFR.

EIA short code indicating the type of firing used by this boiler.

EIA short code indicating the type of firing used by this boiler.

EIA short code indicating the type of firing used by this boiler.

Design firing rate at maximum continuous steam flow for coal to the nearest 0.1 ton per hour.

Design firing rate at maximum continuous steam flow for pet coke to the nearest 0.1 barrels per hour.

Design firing rate at maximum continuous steam flow for gas to the nearest 0.1 cubic feet per hour.

Design firing rate at maximum continuous steam flow for energy sources other than coal, petroleum, or natural gas.

The code representing the most predominant type of energy that fuels the boiler.

The code representing the second most predominant type of energy that fuels the boiler.

The code representing the third most predominant type of energy that fuels the boiler.

The code representing the fourth most predominant type of energy that fuels the boiler.

Design waste-heat input rate at maximum continuous steam flow where a waste-heat boiler is a boiler that receives all or a substantial portion of its energy input from the noncumbustible exhaust gases of a separate fuel-burning process (MMBTU per hour).

Wet or Dry Bottom where Wet Bottom is defined as slag tanks that are installed at furnace throat to contain and remove molten ash from the furnace, and Dry Bottom is defined as having no slag tanks at furnace throat area, throat area is clear, and bottom ash drops through throat to bottom ash water hoppers.

Indicates whether the boiler is capable of re-injecting fly ash.

indicates if the boiler is a heat recovery steam generator (HRSG).

Maximum continuous steam flow at 100 percent load.

The turndown ratio for the boiler.

Boiler efficiency percentage when burning at 100 percent load to the nearest 0.1 percent.

Boiler efficiency percentage when burning at 50 percent load to the nearest 0.1 percent.

Total air flow including excess air at 100 percent load, reported at standard temperature and pressure (i.e. 68 F and one atmosphere pressure).

Indicates whether the boiler is subject to New Source Review requirements.

Month of issued New Source Review permit.

New Source Review permit number.

EIA short code for most stringent type of statute or regulation code under which the boiler is operating for particulate matter control standards.

EIA short code for most stringent type of statute or regulation code under which the boiler is operating for sulfur dioxide control standards.

EIA short code for most stringent type of statute or regulation code under which the boiler is operating for nitrogen oxide control standards.

Numeric value for the unit of measurement specified for particulate matter.

Numeric value for the unit of measurement specified for sulfur dioxide.

Numeric value for the unit of measurement specified for nitrogen oxide.

Numeric value for the unit of measurement specified for particulate matter.

Numeric value for the unit of measurement specified for sulfur dioxide.

Numeric value for the unit of measurement specified for nitrogen oxide.

Year boiler was or is expected to be in compliance with federal, state and/or local regulations for particulate matter emissions.

Year boiler was or is expected to be in compliance with federal, state and/or local regulations for nitrogen oxide emissions.

Year boiler was or is expected to be in compliance with federal, state and/or local regulations for sulfur dioxide emissions.

If boiler is not in compliance with particulate matter regulations, strategy for compliance.

If boiler is not in compliance with particulate matter regulations, strategy for compliance.

If boiler is not in compliance with particulate matter regulations, strategy for compliance.

If boiler is not in compliance with sulfur dioxide regulations, strategy for compliance.

If boiler is not in compliance with sulfur dioxide regulations, strategy for compliance.

If boiler is not in compliance with sulfur dioxide regulations, strategy for compliance.

Existing strategies to meet the sulfur dioxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Existing strategies to meet the sulfur dioxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Existing strategies to meet the sulfur dioxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Planned strategies to meet the sulfur dioxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Planned strategies to meet the sulfur dioxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Planned strategies to meet the sulfur dioxide requirements of Title IV of the Clean Air Act Amendment of 1990.

If boiler is not in compliance with nitrogen oxide regulations, strategy for compliance.

If boiler is not in compliance with nitrogen oxide regulations, strategy for compliance.

If boiler is not in compliance with nitrogen oxide regulations, strategy for compliance.

Existing strategies to meet the nitrogen oxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Existing strategies to meet the nitrogen oxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Existing strategies to meet the nitrogen oxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Planned strategies to meet the nitrogen oxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Planned strategies to meet the nitrogen oxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Planned strategies to meet the nitrogen oxide requirements of Title IV of the Clean Air Act Amendment of 1990.

Year boiler was or is expected to be in compliance with federal, state and/or local regulations for mercury emissions.

Existing strategy to comply with the most stringent mercury regulation.

Existing strategy to comply with the most stringent mercury regulation.

Existing strategy to comply with the most stringent mercury regulation.

Existing strategy to comply with the most stringent mercury regulation.

Existing strategy to comply with the most stringent mercury regulation.

Existing strategy to comply with the most stringent mercury regulation.

Proposed strategy to comply with the most stringent mercury regulation.

Proposed strategy to comply with the most stringent mercury regulation.

Proposed strategy to comply with the most stringent mercury regulation.

Existing strategy to comply with the most stringent nitrogen oxide regulation.

Existing strategy to comply with the most stringent nitrogen oxide regulation.

Existing strategy to comply with the most stringent nitrogen oxide regulation.

Name of nitrogen oxide control manufacturer.

Code indicating the nitrogen oxide control burner manufacturer.

Proposed strategy to comply with the most stringent nitrogen oxide regulation.

Proposed strategy to comply with the most stringent nitrogen oxide regulation.

Proposed strategy to comply with the most stringent nitrogen oxide regulation.

Nitrogen oxide control status code.

Most stringent type of statute or regulation code under which the boiler is operating for mercury control standards.

Existing strategy to comply with the most stringent sulfur dioxide regulation.

Existing strategy to comply with the most stringent sulfur dioxide regulation.

Existing strategy to comply with the most stringent sulfur dioxide regulation.

Proposed strategy to comply with the most stringent sulfur dioxide regulation.

Proposed strategy to comply with the most stringent sulfur dioxide regulation.

Proposed strategy to comply with the most stringent sulfur dioxide regulation.

The percent of sulfur dioxide to be scrubbed specified by the most stringent sulfur dioxide regulation.

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.

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.

Date reported.

The EIA utility Identification number for the owner company that is responsible for the day-to-day operations of the generator, not the operator utility.

The EIA utility Identification number for the operator utility.

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 name of the EIA owner utility.

Two letter ISO-3166 political subdivision code.

City of owner.

Three letter ISO-3166 country code.

Steet address of owner.

Zip code of owner.

Proportion of generator ownership attributable to this utility.

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.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Date reported.

Is there an ash impoundment (e.g. pond, reservoir) at the plant?

If there is an ash impoundment at the plant, is the impoundment lined?

If there is an ash impoundment at the plant, the ash impoundment status as of December 31 of the reporting year.

EIA short code identifying a balancing authority. May include Canadian and Mexican BAs.

Name of the balancing authority.

Geodetic coordinate system identifier (e.g. NAD27, NAD83, or WGS84).

Indicates if the facility has energy storage capabilities.

The docket number relating to the FERC cogenerator status. See FERC Form 556.

Indicates whether the plant has FERC qualifying facility cogenerator status. See FERC Form 556.

The docket number relating to the FERC qualifying facility exempt wholesale generator status.

Indicates whether the plant has FERC qualifying facility exempt wholesale generator status

The docket number relating to the FERC qualifying facility small power producer status. See FERC Form 556.

Indicates whether the plant has FERC qualifying facility small power producer status. See FERC Form 556.

The docket number relating to the FERC qualifying facility cogenerator status. See FERC Form 556.

Plant's grid voltage at point of interconnection to transmission or distribution facilities

Plant's grid voltage at point of interconnection to transmission or distribution facilities

Plant's grid voltage at point of interconnection to transmission or distribution facilities

The code of the plant's ISO or RTO. NA if not reported in that year.

Indicates if the facility have the capability to store the natural gas in the form of liquefied natural gas.

Names of Local Distribution Company (LDC), connected to natural gas burning power plants.

Indicates if the facility have on-site storage of natural gas.

The name of the owner or operator of natural gas pipeline that connects directly to this facility or that connects to a lateral pipeline owned by this facility.

The name of the owner or operator of natural gas pipeline that connects directly to this facility or that connects to a lateral pipeline owned by this facility.

The name of the owner or operator of natural gas pipeline that connects directly to this facility or that connects to a lateral pipeline owned by this facility.

NERC region in which the plant is located

Whether the plant has a net metering agreement in effect during the reporting year. (Only displayed for facilities that report the sun or wind as an energy source). This field was only reported up until 2015

Additional owner or operator of natural gas pipeline.

North American Industry Classification System (NAICS) code that best describes the primary purpose of the reporting plant

Indicates whether the plant is regulated or non-regulated.

Code that specifies what time period data has to be reported (i.e. monthly data or annual totals) and how often the power plant reports this data to EIA. See reporting_frequencies_eia for more details.

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

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

Service area in which plant is located; for unregulated companies, it's the electric utility with which plant is interconnected

EIA-assigned code for owner of transmission/distribution system to which the plant is interconnected.

Name of the owner of the transmission or distribution system to which the plant is interconnected.

State location for owner of transmission/distribution system to which the plant is interconnected.

The EIA Utility Identification number.

Name of water source associated with the plant.

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.

The EIA Utility Identification number.

Date reported.

Physical street address.

Name of the city.

Two letter US state abbreviation.

Five digit US Zip Code.

Is the reporting entity an owner of power plants reported on Schedule 2 of the form?

Is the reporting entity an operator of power plants reported on Schedule 2 of the form?

Is the reporting entity an asset manager of power plants reported on Schedule 2 of the form?

Does the reporting entity have any other relationship to the power plants reported on Schedule 2 of the form?

Entity type of principal owner.

Mail attention name of the operator/owner.

Second line of the address.

Four digit US Zip Code suffix.

First name of utility contact 1.

Last name of utility contact 1.

Title of of utility contact 1.

Phone number for utility contact 1.

Phone extension for utility contact 1

First name of utility contact 2.

Last name of utility contact 2.

Title of utility contact 2.

Phone number for utility contact 2.

Phone extension for utility contact 2

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.

Date reported.

The record in the changelog is valid until this date. The record is valid from the report_date up until but not including the valid_until_date.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Plant name.

The EIA Utility Identification number.

The name of the utility.

Generator ID is usually numeric, but sometimes includes letters. Make sure you treat it as a string!

EIA short code identifying a balancing authority. May include Canadian and Mexican BAs.

Total installed (nameplate) capacity, in megawatts.

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.

The code representing the most predominant type of energy that fuels the generator.

Energy storage capacity in MWh (e.g. for batteries).

Simplified fuel type code used in PUDL

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.

Latitude of the plant's location, in degrees.

Longitude of the plant's location, in degrees.

Generation capacity in megawatts of direct current that is subject to a net metering agreement. Typically used for behind-the-meter solar PV.

The operating status of the asset. For generators this is based on which tab the generator was listed in in EIA 860.

The operating status of the asset.

Planned effective month that the generator is scheduled to enter operation after the derate modification.

Planned effective date of the scheduled retirement of the generator.

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.

Planned effective date that the generator is scheduled to enter operation after the uprate modification.

Planned effective date that the generator is scheduled to enter operation after the repowering is complete.

Code for the type of prime mover (e.g. CT, CG)

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

Two letter US state abbreviation.

The net summer capacity.

High level description of the technology used by the generator to produce electricity.

The net winter capacity.

Date reported.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Alphanumeric boiler ID.

EIA Identification code for cooling system (if multiple cooling systems are not distinguished by separate IDs, the word 'PLANT' is listed to encompass the cooling system for the entire plant)

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.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Date reported.

Generator ID is usually numeric, but sometimes includes letters. Make sure you treat it as a string!

Alphanumeric boiler ID.

EIA-assigned unit identification code.

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.

Indicates whether boiler associations with generator during the year were actual or theoretical. Only available before 2013.

Code that describes types of steam plants from EIA 860. See steam_plant_types_eia table for more details.

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).

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.

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.

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.

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.

Date reported.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Alphanumeric boiler ID.

The stack identification value reported to EIA. Stacks or chimneys are the place where emissions from the combustion process are released into the atmosphere. This field was reported in conjunction with flue_id_eia until 2013 when stack_flue_id_eia took their place.

The flue identification value reported to EIA. The flue is a duct, pipe, or opening that transports exhast gases through the stack. This field was reported in conjunction with stack_id_eia until 2013 when stack_flue_id_eia took their place.

The stack or flue identification value reported to EIA. This denotes the place where emissions from the combustion process are released into the atmosphere. Prior to 2013, this was reported as stack_id_eia and flue_id_eia.

A stack and/or flue identification value created by PUDL for use as part of the primary key for the stack flue equipment and boiler association tables. For 2013 and onward, this value is equal to the value for stack_flue_id_eia. Prior to 2013, this value is equal to the value for stack_id_eia and the value for flue_id_eia separated by an underscore or just the stack_flue_eia in cases where flue_id_eia is NA.

Date reported.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

A PUDL-generated ID used to distinguish emission control units in the same report year and plant id. This ID should not be used to track units over time or between plants.

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.

Short code indicating the type of emission control equipment installed.

The operating status of the asset.

Mercury control identification number. This ID is not a unique identifier.

Nitrogen oxide control identification number. This ID is not a unique identifier.

Particulate matter control identification number. This ID is not a unique identifier.

Sulfur dioxide control identification number. This ID is not a unique identifier.

Indicates whether the emissions control equipment controls acid (HCl) gas.

The total cost to install a piece of emission control equipment.

The date a piece of emissions control equipment began operating. Derived from month and year columns in the raw data.

The expected or actual retirement date for a piece of emissions control equipment. Derived from month and year columns in the raw data.

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.

Date reported.

The unique six-digit facility identification number, also called an ORISPL, assigned by the Energy Information Administration.

Alphanumeric boiler ID.

The type of emissions control id: SO2, NOx, particulate, or mercury.

The emission control ID used to collect SO2, NOx, particulate, and mercury emissions data. This column should be used in conjunction with emissions_control_type as it's not guaranteed to be unique.

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.