{"columns":[{"name":"code","type":"string"},{"name":"label","type":"string"},{"name":"description","type":"string"},{"name":"operational_status","type":"string"}],"n_rows":18,"rows_kept":18,"cut":false,"text_format":"parquet-jsonl-2026-10-02","bounds":{"document_bytes":16777216,"package_text_limit_bytes":33554432,"package_text_slack_bytes":1024,"rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096,"vector_min":64,"vector_head_fixed":16,"vector_head_variable":64,"kv_value_chars":1048576,"nesting_max":64,"binary_text":true},"cells_cut":0,"cells_bad_utf8":0,"cells_raw":0,"cells_binary":0,"cells_binary_text":0,"cells_vector":0,"n_row_groups":1,"reader":"pyarrow 23.0.1, python 3.13","created_by":"parquet-cpp-arrow version 24.0.0","schema":{"fields":[{"name":"code","type":"string","nullable":false,"metadata":[["description","Originally reported short code."]],"children":null},{"name":"label","type":"string","nullable":true,"metadata":[["description","Longer human-readable code using snake_case"]],"children":null},{"name":"description","type":"string","nullable":true,"metadata":[["description","Long human-readable description of the meaning of a code/label."]],"children":null},{"name":"operational_status","type":"string","nullable":true,"metadata":[["description","The operating status of the asset. For generators this is based on which tab the generator was listed in in EIA 860."]],"children":null}],"parquet":"required group field_id=-1 schema {\n  required binary field_id=-1 code (String);\n  optional binary field_id=-1 label (String);\n  optional binary field_id=-1 description (String);\n  optional binary field_id=-1 operational_status (String);\n}\n"},"kv_metadata":[["pandas","{\"index_columns\": [], \"column_indexes\": [], \"columns\": [{\"name\": \"code\", \"field_name\": \"code\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}, {\"name\": \"label\", \"field_name\": \"label\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}, {\"name\": \"description\", \"field_name\": \"description\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}, {\"name\": \"operational_status\", \"field_name\": \"operational_status\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}], \"attributes\": {}, \"creator\": {\"library\": \"pyarrow\", \"version\": \"24.0.0\"}, \"pandas_version\": \"2.3.3\"}"],["primary_key","code"],["ARROW:schema",{"$cut":{"chars":2688,"head":""}}],["description","Code table containing descriptions of categorical codes for operational status reported to EIA.\n\n\n\nProcessing:\n  Data has been cleaned and organized into well-modeled tables that serve as building blocks for downstream wide tables and analyses.\n\nSource:\n  EIA -- Mix of multiple EIA Forms\n\nPrimary key:\n  code\n\n\nUsage Warnings\n^^^^^^^^^^^^^^\n\n\n* Contains information from multiple raw inputs.\n\n\n\n\n\nAdditional Details\n^^^^^^^^^^^^^^^^^^\n\nCompiled from EIA-860 instructions and EIA-923 file layout spreadsheets."]]}
["CN","cancelled","Cancelled, but previously reported as 'planned'","proposed"]
["CO","under_construction","New unit under construction.","proposed"]
["IP","indefinitely_postponed","Planned new indefinitely postponed, or no longer in resource plan","proposed"]
["L","planned_approvals_pending","Not under construction but site preparation could be underway","proposed"]
["OA","out_of_service_short_term","Was not used for some or all of the reporting period but is expected to be returned to service in the next calendar year.","existing"]
["OP","operating","Operating (in commercial service or out of service within 365 days). For generators, this means in service (commercial operation) and producing some electricity. Includes peaking units that are run on an as needed (intermittent or seasonal) basis.","existing"]
["OS","out_of_service_long_term","Was not used for some or all of the reporting period and is NOT expected to be returned to service in the next calendar year.","existing"]
["OT","other","proposed","proposed"]
["OZ","operate_during_ozone_season","Operated only during the ozone season (May through September). Only used for emissions equipment.","existing"]
["P","planned_approvals_not_initiated","Planned for installation but regulatory approvals not initiated; Not under construction","proposed"]
["PL","planned","Planned (expected to go into commercial service within 10 years)","proposed"]
["RE","retired","No longer in service and not expected to be returned to service.","retired"]
["SB","standby","Standby/Backup. Available for service but not normally used (has little or no generation during the year) for this reporting period. Includes old code BU from 2004-2006.","existing"]
["SC","standby_col","Cold Standby (Reserve); deactivated. Usually requires 3 to 6 months to reactivate","existing"]
["T","planned_approvals_received","Regulatory approvals received. Not under construction but site preparation could be underway","proposed"]
["TS","construction_complete","Construction complete, but not yet in commercial operation (including low power testing of nuclear units). Operating under test conditions.","proposed"]
["U","under_construction_less_than_half_complete","Under construction, less than or equal to 50 percent complete (based on construction time to date of operation)","proposed"]
["V","under_construction_more_than_half_complete","Under construction, more than 50 percent complete (based on construction time to date of operation)","proposed"]