{
  "materials": {
    "example_glass": {
      "visible_reflectance": [[0, 0.15], [30, 0.16], [60, 0.25], [80, 0.60], [90, 1.0]],
      "solar_reflectance": [[0, 0.20], [30, 0.21], [60, 0.30], [80, 0.65], [90, 1.0]],
      "source": "EXAMPLE ASSUMPTION ONLY: replace both curves with front-side system data from the manufacturer or WINDOW",
      "verified": false
    }
  },
  "assignments": {"window": "example_glass", "pv": "example_glass"},
  "statutory_glass_material": "example_glass",
  "opaque_visible_reflectance": 0.3,
  "opaque_solar_reflectance": 0.3,
  "ground_visible_reflectance": 0.2,
  "ground_solar_reflectance": 0.2,
  "ground_z_m": 0,
  "existing_geometry": {"panels": [], "host_surfaces": [], "footprints": []},
  "land_use_zones": [],
  "weather_code": "5",
  "quality": "standard",
  "input_basis": "EXAMPLE: vacant project site, ground Z=0, true north +Y, metres. Replace with surveyed existing geometry, north/datum and background material evidence. Surroundings default to unverified opaque OSM extrusions; supply environment_geometry for surveyed surroundings. Empty land-use zones remain unclassified."
}