curl --request GET \
  --url https://sandbox.prezio.eu/api/formulas/{id}/ \
  --header 'Authorization: <api-key>'

{
  "id": 1,
  "name": "Swedish Peak Power Charge - High Load Period",
  "key": "se_peak_highlast",
  "formula_definition": "peak_demand * rate",
  "input_requirements": [
    {
      "input_type": "TIME_SERIES",
      "key": "consumption_profile",
      "name": "Consumption Profile",
      "description": "Hourly consumption time series data",
      "input_unit_measurement": "KWH",
      "input_unit_period": null,
      "input_unit_display": "per kWh",
      "accepted_interval_minutes": [
        15,
        30,
        60
      ]
    }
  ],
  "parameters": [
    {
      "id": 1,
      "name": "Peak Demand - High Load",
      "key": "peak_demand",
      "aggregation": {
        "id": 10,
        "name": "SE Peak Demand - High Load Period",
        "function": "peak",
        "function_description": "Peak aggregation (top N values)",
        "config": {
          "peaks_count": 3,
          "distinct_interval_minutes": 1440,
          "peaks_function": "avg"
        },
        "per_interval_formula": "",
        "aggregation_expression": "avg(top_n(max_per_period(x, 1440), 3))",
        "tou_filters": [
          {
            "tou_manual": [
              {
                "months": [
                  11,
                  12,
                  1,
                  2,
                  3
                ],
                "days": [
                  1,
                  2,
                  3,
                  4,
                  5
                ],
                "start_time": "07:00",
                "end_time": "20:00"
              }
            ],
            "weight": 1,
            "is_opposite": false
          },
          {
            "tou_manual": [
              {
                "months": [
                  11,
                  12,
                  1,
                  2,
                  3
                ],
                "days": [
                  1,
                  2,
                  3,
                  4,
                  5
                ],
                "start_time": "07:00",
                "end_time": "20:00"
              }
            ],
            "weight": 0,
            "is_opposite": true
          },
          {
            "calendar_id": 456,
            "weight": 0.5
          }
        ],
        "lookback_frequency": "monthly"
      }
    },
    {
      "id": 2,
      "name": "Rate",
      "key": "rate",
      "aggregation": {
        "id": 11,
        "name": "Tariff Rate Input",
        "function": "sum",
        "function_description": "Sum of all values",
        "config": {},
        "per_interval_formula": "",
        "tou_filters": [],
        "lookback_frequency": ""
      }
    }
  ],
  "usage": {
    "summary": {
      "total_components": 15,
      "total_tariffs": 8,
      "component_types": [
        "DEMAND"
      ]
    },
    "details": [
      {
        "tariff_id": "tar_45",
        "tariff_name": "Business Low Voltage",
        "component_id": "com_1889",
        "component_name": "Winter Peak Demand",
        "component_key": "winter_peak",
        "calculation_input": "peak_demand",
        "has_tariff_tou": true,
        "has_tiers": false
      }
    ]
  }
}