Chart: Balancing Authority Map#
US balancing-authority territories as hoverable regions.
Chart#
Sources: EIA control-area regions layer (ArcGIS)
Description#
Interactive map of every North American balancing authority territory (85 BAs incl. Canadian and Mexican interconnection members). Each territory is a pastel-filled region; hovering shows the BA name, code, annual net generation, and territory area. Larger BAs carry their code directly on the map; small municipal BAs are hover-only. The three hub BAs of this project (CAISO, PACE, PACW) carry larger labels. The legend lists every BA and toggles its region on and off.
Formulas Used: N/A.
Data Cleaning Information: Ring vertices are thinned with Douglas-Peucker (~1.2 km tolerance) at chart build time so canvas panning stays smooth; territories are drawn largest-first so embedded small BAs remain visible and hoverable.
Notes#
Polygons are EIA’s control-area regions layer (2025-02 edition) - the successor to the retired HIFLD “Control Areas” layer that most public BA maps still render (2021 vintage).
BA territories are service-area approximations built from utility service territories, not electrical topology; footprints overlap, and nothing should be area-weighted against them.
Analytical plant-to-BA membership in this project comes from
eia860m_generators, never from these polygons.
Chart Specs#
Chart Name |
Balancing Authority Map |
|---|---|
Chart ID |
caiso_ba_map |
Topic Tags |
Map, Balancing Authorities, Grid Context |
Data Series Start Date |
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Data Frequency |
Reference snapshot |
Observation Period |
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Lag in Data Release |
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Data Release Timing |
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Seasonal Adjustment |
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Units |
MWh, sq mi |
HTML Chart |
Dataframe Manifest#
Dataframe Name |
US BA Boundaries |
|---|---|
Dataframe ID |
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Data Sources |
EIA control-area regions layer (ArcGIS) |
Data Providers |
U.S. Energy Information Administration/ArcGIS Online (hosting) |
Links to Providers |
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Topic Tags |
Reference, Balancing Authorities, Map |
Type of Data Access |
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How is data pulled? |
src/pulls/pull_us_ba_boundaries.py via the ArcGIS FeatureServer API |
Data available up to (min) |
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Data available up to (max) |
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Dataframe Path |
data\opensource\us_ba_boundaries.parquet |
Linked Charts:
Pipeline Manifest#
Pipeline Name |
Project-Lab-Energy-Weather-Natgas-Quanto-CAISO |
|---|---|
Pipeline ID |
|
Lead Pipeline Developer |
Brian Nguyen |
Contributors |
Brian Nguyen, Claire Kim |
Git Repo URL |
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Pipeline Web Page |
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Date of Last Code Update |
2026-08-27 10:08:05 |
OS Compatibility |
Windows, Linux, macOS |
Linked Dataframes |
CAISO:caiso_lmp_day_ahead_hourly |
Build Commands:
doit