Data

Repository Structure

PowerGridPlanning.jl/
├── src/
│   ├── PowerGridPlanning.jl             # Main module and solve_ots() function
│   ├── preprocessing.jl            # Time parsing, data loading, load generation
│   ├── add_variables.jl            # Variable definitions for DCOTS/LACOTS (and DCOPF/LACOPF)
│   ├── add_constraints.jl          # Power flow and operational constraints
│   ├── add_objective.jl            # Objective function formulations
│   ├── base_OPS.jl                 # Core optimization solver
│   ├── ac_verification.jl          # Nonlinear AC verification/recovery models
│   ├── save_results.jl             # Output formatting and serialization
│   ├── plotting.jl                 # plot_results() and all plot generation
│   ├── plotting_helpers.jl         # Shared plotting utilities and color maps
│   ├── solar_data.jl               # PVWatts solar capacity-factor fetcher
│   ├── population_assignment.jl    # Tract → bus radius assignment for census aggregation
│   └── census_data.jl              # Census ACS fetch + per-bus demographic aggregation
├── data/                           # Full dataset (gitignored — see test_data/ for GitHub subset)
│   ├── networks/                   # Power system test cases (.m format)
│   ├── CATS/                       # California Test System specific data
│   ├── USGS_FPI/                   # Wildfire risk data
│   ├── bus_lat_lons/               # Geographic coordinates for networks
│   ├── US_Shapefiles/              # US state and tract boundaries for visualization
│   ├── solar_data/                 # PVWatts hourly capacity factors per network
│   └── census_data/                # Per-bus Census ACS demographics
├── test_data/                      # June reference subset (June 2020; June 2021 for RTS)
│   ├── networks/                   # Same structure as data/
│   ├── CATS/                       # June-only CATS time-series
│   ├── USGS_FPI/                   # Wildfire risk data (June only)
│   ├── bus_lat_lons/
│   ├── US_Shapefiles/
│   └── solar_data/                 # Solar capacity factors (small networks only)
├── tutorial.ipynb                  # Jupyter notebook walkthrough
├── LICENSE                         # MIT license
├── Project.toml                    # Package dependencies
└── README.md                       # This file

Available Data

Included Reference Dataset

This repository ships with a reference dataset (test_data/) limited to June 2020 (June 2021 for RTS) for all six networks. This subset is sufficient for testing, demos, and single-month analyses. For other time periods, use fetch_wfpi_data.jl to download WFPI risk data, or supply custom data via the :risk_per_line parameter.

The full dataset lives in data/ (gitignored). To regenerate test_data/ from data/, run:

julia scripts/generate_reference_data.jl

Solar Capacity Factor Data

Solar capacity factor data (TMY hourly profiles from NREL PVWatts) is included in test_data/solar_data/ for small networks only, due to GitHub's 100 MB file size limit:

To generate solar data locally for any network, run:

export NREL_API_KEY=your_key_here  # get a free key at https://developer.nlr.gov/signup/
julia --project=scripts scripts/generate_solar_data.jl --network Texas7k

This fetches TMY data from the NREL PVWatts API and writes to data/solar_data/{Network}/solar_data.csv. Then re-run generate_reference_data.jl to populate test_data/solar_data/.

Census Demographic Data

Per-bus Census ACS 5-year demographics (total population, households, race, Hispanic/Latino ethnicity, poverty, household-income brackets, median income) are pulled via the Census Data API and aggregated from census tracts to load buses.

The pipeline runs in three stages:

1. Tract selection. Every census tract whose centroid lies within a per-bus radius (default 25 km) of any bus is selected. This union-of-disks filter keeps sparse networks (e.g. WECC240) from pulling tracts in the empty regions between distant buses.
2. ACS fetch. The Census Data API (api.census.gov/data, free) returns demographics for each selected tract. A free key is optional — anonymous access is capped at ~500 requests per day. Get one at https://api.census.gov/data/key_signup.html.
3. Tract → bus aggregation. A 3-pass radius algorithm assigns tract populations to load buses (guaranteeing every populated tract is covered and every load bus receives population), then tract-level counts are summed with weights to per-bus totals. median_income is population-weighted across assigned tracts.

Generate data for a network:

export CENSUS_API_KEY=your_key_here   # optional
julia --project=. scripts/generate_census_data.jl --network RTS
julia --project=. scripts/generate_census_data.jl --network WECC240 --radius-km 50
julia --project=. scripts/generate_census_data.jl --network RTS --weighting proportional
julia --project=. scripts/generate_census_data.jl --network RTS --acs-year 2021

Requires the national tract shapefile (~100 MB, gitignored):

curl -L -o data/US_Shapefiles/cb_2023_us_tract_500k.zip \
  https://www2.census.gov/geo/tiger/GENZ2023/shp/cb_2023_us_tract_500k.zip
unzip -o data/US_Shapefiles/cb_2023_us_tract_500k.zip -d data/US_Shapefiles/

Output: a single CSV per (network, ACS year) at data/census_data/{Network}_census_{Year}.csv:

All num_* columns are absolute counts (Σ weight × tract_count over assigned tracts); derive percentages downstream as needed. Rows are emitted only for load buses (buses with non-zero active load).

Weighting modes (--weighting):

• inverse (default) — w_i = (1/d_i) / Σ(1/d_j). Closer buses get larger shares.
• proportional — w_i = d_i / Σ d_j. Matches the original spec literally; farther buses get larger shares.

Plot overlay on :network_overview: pass census_overlay=:median_income (or :pct_poverty, :pct_nonwhite) to plot_results to color each load bus by the metric. The plot falls back gracefully with a warning if the CSV is absent.

Load results back into Julia with load_census_data(network; acs_year=2022).

Data Sources

Full CATS Load Data:

• The full California Test System load data file can be downloaded from the CATS-CaliforniaTestSystem repository
• The included reference dataset contains June hours only

Full Wildfire Risk Data:

• Wildfire risk data for additional time periods is available upon request
• Contact the repository maintainers for access

Power System Networks

Network Credits and Sources

• California Test System (CATS): Obtained from the CATS-CaliforniaTestSystem repository by WISPO-POP
• RTS-GMLC: From the RTS-GMLC repository, developed by the Grid Modernization Lab Consortium
• ACTIVSg Test Cases (Texas2k, WECC10k): Synthetic test cases from Texas A&M University. See ACTIVSg documentation
• Texas 7k: Texas synthetic 7000-bus test case
• WECC 240: PSERC 240-bus test case from the PGLib-OPF library

Wildfire Risk Data

Wildfire risk data is automatically loaded from the USGS Fire Potential Index (FPI) based on the network and time specification.

Note: The included dataset only covers June 2020 (June 2021 for RTS). For other time periods, supply custom data via the :risk_per_line parameter or contact the maintainers for the full dataset.

Standard Networks (RTS, Texas7k, Texas2k, WECC10k, WECC240):

• Data stored per day in JLD2 format
• Location: data/USGS_FPI/{network}/{year}/forecast_day_1/
• File format: FPI_{network}_fday1_year{year}_month{month}_day{day}.jld2
• Contains: Dict{Int,Float64} mapping line ID to risk value

CATS Network:

• Data stored in annual CSV files
• Location: data/USGS_FPI/CATS/{year}_risk.csv
• Columns: date_of_forecast, branch_id, max_wfpi, mean_wfpi, cum_wfpi, etc.
• Select risk metric via :risk_metric parameter (default: "cum_wfpi")