{"columns":[{"name":"balancing_authority_code_eia","type":"string"},{"name":"balancing_authority_subregion_code_eia","type":"dictionary<values=string, indices=int32, ordered=0>"},{"name":"balancing_authority_subregion_name_eia","type":"string"}],"n_rows":84,"rows_kept":84,"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 23.0.1","schema":{"fields":[{"name":"balancing_authority_code_eia","type":"string","nullable":false,"metadata":[["description","EIA short code identifying a balancing authority. May include Canadian and Mexican BAs."]],"children":null},{"name":"balancing_authority_subregion_code_eia","type":"dictionary<values=string, indices=int32, ordered=0>","nullable":false,"metadata":[["description","Code identifying subregions of larger balancing authorities."]],"children":null},{"name":"balancing_authority_subregion_name_eia","type":"string","nullable":true,"metadata":[["description","Name of the balancing authority subregion."]],"children":null}],"parquet":"required group field_id=-1 schema {\n  required binary field_id=-1 balancing_authority_code_eia (String);\n  required binary field_id=-1 balancing_authority_subregion_code_eia (String);\n  optional binary field_id=-1 balancing_authority_subregion_name_eia (String);\n}\n"},"kv_metadata":[["pandas","{\"index_columns\": [], \"column_indexes\": [], \"columns\": [{\"name\": \"balancing_authority_code_eia\", \"field_name\": \"balancing_authority_code_eia\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}, {\"name\": \"balancing_authority_subregion_code_eia\", \"field_name\": \"balancing_authority_subregion_code_eia\", \"pandas_type\": \"categorical\", \"numpy_type\": \"int8\", \"metadata\": {\"num_categories\": 84, \"ordered\": false}}, {\"name\": \"balancing_authority_subregion_name_eia\", \"field_name\": \"balancing_authority_subregion_name_eia\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}], \"attributes\": {}, \"creator\": {\"library\": \"pyarrow\", \"version\": \"23.0.1\"}, \"pandas_version\": \"2.3.3\"}"],["primary_key","balancing_authority_code_eia,balancing_authority_subregion_code_eia"],["ARROW:schema",{"$cut":{"chars":2700,"head":""}}],["description","Code table containing descriptions of categorical codes for balancing authority subregions in EIA 930.\n\n\nMost-recent data:\n  2026half1\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  balancing_authority_code_eia, balancing_authority_subregion_code_eia"]]}
["CISO","PGAE","Pacific Gas and Electric"]
["CISO","SCE","Southern California Edison"]
["CISO","SDGE","San Diego Gas and Electric"]
["CISO","VEA","Valley Electric Association"]
["ERCO","COAS","Coast"]
["ERCO","EAST","East"]
["ERCO","FWES","Far West"]
["ERCO","NCEN","North Central"]
["ERCO","NRTH","North"]
["ERCO","SCEN","South Central"]
["ERCO","SOUT","South"]
["ERCO","WEST","West"]
["ISNE","4001","Maine"]
["ISNE","4002","New Hampshire"]
["ISNE","4003","Vermont"]
["ISNE","4004","Connecticut"]
["ISNE","4005","Rhode Island"]
["ISNE","4006","Southeast Mass."]
["ISNE","4007","Western/Central Mass."]
["ISNE","4008","Northeast Mass."]
["MISO","0001","Zone 1"]
["MISO","0004","Zone 4"]
["MISO","0006","Zone 6"]
["MISO","0027","Zones 2 and 7"]
["MISO","0035","Zones 3 and 5"]
["MISO","8910","Zones 8, 9, and 10"]
["NYIS","ZONA","West"]
["NYIS","ZONB","Genesee"]
["NYIS","ZONC","Central"]
["NYIS","ZOND","North"]
["NYIS","ZONE","Mohawk Valley"]
["NYIS","ZONF","Capital"]
["NYIS","ZONG","Hudson Valley"]
["NYIS","ZONH","Millwood"]
["NYIS","ZONI","Dunwoodie"]
["NYIS","ZONJ","New York City"]
["NYIS","ZONK","Long Island"]
["PJM","AE","Atlantic Electric zone"]
["PJM","AEP","American Electric Power zone"]
["PJM","AP","Allegheny Power zone"]
["PJM","ATSI","American Transmission Systems, Inc. zone"]
["PJM","BC","Baltimore Gas & Electric zone"]
["PJM","CE","Commonwealth Edison zone"]
["PJM","DAY","Dayton Power & Light zone"]
["PJM","DEOK","Duke Energy Ohio/Kentucky zone"]
["PJM","DOM","Dominion Virginia Power zone"]
["PJM","DPL","Delmarva Power & Light zone"]
["PJM","DUQ","Duquesne Lighting Company zone"]
["PJM","EKPC","East Kentucky Power Cooperative zone"]
["PJM","JC","Jersey Central Power & Light zone"]
["PJM","ME","Metropolitan Edison zone"]
["PJM","PE","PECO Energy zone"]
["PJM","PEP","Potomac Electric Power zone"]
["PJM","PL","Pennsylvania Power & Light zone"]
["PJM","PN","Pennsylvania Electric zone"]
["PJM","PS","Public Service Electric & Gas zone"]
["PJM","RECO","Rockland Electric (East) zone"]
["PNM","ACMA","City of Acoma Pueblo"]
["PNM","CYGA","City of Gallup"]
["PNM","FREP","Freeport"]
["PNM","JICA","Jicarilla Apache Nation"]
["PNM","KAFB","Kirtland Air Force Base"]
["PNM","KCEC","Kit Carson Electric Cooperative"]
["PNM","LAC","Los Alamos County"]
["PNM","NTUA","Navajo Tribal Utility Authority"]
["PNM","PNM","PNM System Firm Load"]
["PNM","TSGT","Tri-State Generation and Transmission"]
["SWPP","CSWS","AEPW American Electric Power West"]
["SWPP","EDE","Empire District Electric Company"]
["SWPP","GRDA","Grand River Dam Authority"]
["SWPP","INDN","Independence Power & Light"]
["SWPP","KACY","Kansas City Board of Public Utilities"]
["SWPP","KCPL","Kansas City Power & Light"]
["SWPP","LES","Lincoln Electric System"]
["SWPP","MPS","KCP&L Greater Missouri Operations"]
["SWPP","NPPD","Nebraska Public Power District"]
["SWPP","OKGE","Oklahoma Gas and Electric Co."]
["SWPP","OPPD","Omaha Public Power District"]
["SWPP","SECI","Sunflower Electric"]
["SWPP","SPRM","City of Springfield"]
["SWPP","SPS","Southwestern Public Service Company"]
["SWPP","WAUE","Western Area Power Upper Great Plains East"]
["SWPP","WFEC","Western Farmers Electric Cooperative"]
["SWPP","WR","Westar Energy"]