{
  "about": "The catalogue's first cut. Every dataset belongs to exactly one domain; eras, grains and tiers are attributes read on the entry, not categories browsed by. Assigned by the author of the entry in pipelines/entries_datasets.py and enforced by the dataset schema.",
  "domains": [
    {"id": "wires", "label": "The wires", "description": "The physical grid as it is published: transmission lines, substations, distribution circuits, and which company owns the wires and the mains in each town."},
    {"id": "regional-system", "label": "The regional system", "description": "What New England as a whole draws and generates: seasonal peaks, the ISO's forecast, the generator list, and the reconstructed record back to 1950."},
    {"id": "buildings", "label": "Buildings and what they use", "description": "Consumption where it can be seen: building energy disclosures, sales by customer class back to 1927, and what a household pays per kilowatt-hour."},
    {"id": "distributed-energy", "label": "Distributed energy", "description": "Loads and supply that arrive at the edge of the grid: solar roofs, electric vehicles and their chargers, and the permits that show electrification house by house."},
    {"id": "compute", "label": "Data centres and compute", "description": "The load being built now: the buildings, the New England pipeline and its refusals, the queues, and the money and machines behind the AI build-out."},
    {"id": "people-jurisdictions", "label": "People and jurisdictions", "description": "The ground people live on and who decides for it: census tracts with energy burden, neighbourhoods, and the legislative, ward and council districts."},
    {"id": "historical-record", "label": "The historical record", "description": "The archive the early chapters are drawn from: fire-insurance atlases, rights-cleared photographs, and the power stations and gas works that stood in the city."}
  ]
}