{
  "kind": "synthetic_arithmetic_not_device_measurements",
  "currency": "fictional CU, not a current tariff",
  "interval": {"start_kwh": "12.400", "end_kwh": "13.660", "hours": "72", "unit_rate": "0.30"},
  "rate_segments": [{"kwh": "0.900", "unit_rate": "0.32"}, {"kwh": "0.360", "unit_rate": "0.18"}],
  "annual_scenario": {"days": "365", "avoided_load_w": "1", "avoided_hours_per_day": "16", "added_monitor_w": "0.6", "monitor_hours_per_day": "24", "unit_rate": "0.30"},
  "invalid_counter_example": {"start_kwh": "12.400", "end_kwh": "0.050", "reason": "A discontinuity is not negative consumption; no valid interval total is inferred."},
  "boundary": "All inputs are invented. No appliance, household, product accuracy, monitor self-consumption or savings was measured. The annual model assumes identical days and additional monitor consumption excluded from the load reading."
}