curl --request GET \
  --url https://api.voltview.co.uk/v1/sites/{siteId}/tariffs \
  --header 'x-api-key: <api-key>'

[
  {
    "siteId": "<string>",
    "supplier": "<string>",
    "tariffName": "<string>",
    "startDate": "2023-12-25",
    "endDate": "2023-12-25",
    "rates": [
      {
        "name": "<string>",
        "rate": 123,
        "startTime": "<string>",
        "endTime": "<string>",
        "daysOfWeek": []
      }
    ]
  }
]