curl --request GET \
  --url https://api.engrate.io/cost-of-energy/v1/tariffs \
  --header 'Authorization: <api-key>'

{
  "tariffs": [
    {
      "available_from": "2024-01-01T00:00:00+01:00",
      "eligibility": {
        "fuse_size": {
          "unit": "A",
          "value": 20
        },
        "metering_grid_area_ids": [
          "0199c317-25ec-7c00-b1a0-a1b2c3d4e5f6"
        ],
        "other": [
          "fuse_based"
        ],
        "type": "system_operator"
      },
      "id": "0199c317-25ec-7cf7-94cc-32a39f068433",
      "name": "Säkringsabonnemang - 20 A",
      "summary": "Fuse-based tariff for 20A with energy tax and monthly subscription fee.",
      "tariff_components": [
        {
          "applicable_from": "2026-01-01T00:00:00+01:00",
          "cost": {
            "id": "cost",
            "resolution": "quarter_hourly",
            "unit": "SEK"
          },
          "datasets": [
            {
              "id": "quarter-hourly-energy-offtake",
              "resolution": "quarter_hourly",
              "unit": "kWh"
            }
          ],
          "functions": [
            {
              "left": {
                "id": "quarter-hourly-energy-offtake",
                "resolution": "quarter_hourly",
                "unit": "kWh"
              },
              "output": {
                "id": "cost",
                "resolution": "quarter_hourly",
                "unit": "SEK"
              },
              "right": {
                "unit": "SEK_per_kWh",
                "value": 0.36
              },
              "type": "multiply"
            }
          ],
          "name": "Energiskatt",
          "timezone": "Europe/Stockholm"
        }
      ]
    }
  ]
}