Duke Energy Ohio commercial bills, itemized to the cent.

Try it

No key needed. The sandbox allows 25 bills a day.

The API

Send a billing period and usage. Get back every line item, subtotals by bucket, and what isn't modeled. Bills ending in a month without published rates return 422 no_rates_for_period.

curl https://veridor.ai/v1/bills/duke-oh-ds \
  -H "Authorization: Bearer $VERIDOR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"billing_period": {"start": "2026-10-01", "end": "2026-10-31"}, "inputs": {"kwh": 10000, "kw": 30, "rate_code": "DS01", "phase": 1}}'

{
  "object": "bill",
  "tariff": {
    "version_id": "duke_oh_ds@2026-01-01",
    "utility": "Duke Energy Ohio",
    "rate_schedule": "DS"
  },
  "billing_period": {
    "start": "2026-10-01",
    "end": "2026-10-31"
  },
  "total": 1343.71,
  "subtotals_by_bucket": {
    "delivery": 306.94,
    "other": 42.82,
    "transmission": 96.4,
    "generation": 897.55
  },
  "line_items": [
    {
      "id": "customer_charge",
      "name": "Distribution Customer Charge",
      "category": "fixed_charge",
      "bucket": "delivery",
      "amount": 23.0
    },
    {
      "id": "distribution_demand_charge",
      "name": "Distribution Demand Charge",
      "category": "demand_charge",
      "bucket": "delivery",
      "amount": 209.03
    },
    "… 23 more"
  ]
}

How every number is verified

Rate data is only useful if it's right. Nothing ships until it reproduces bills the utility itself computed.

What isn't modeled

Read these before you rely on a number. Most match the limits of Duke's own calculator.

• Billing monthsBills ending January 2026 through October 2026. Later months return 422 until Duke publishes their rider rates.
• Billing demandThe kW you send is used as billing demand. Duke's demand ratchet (85% of the highest summer demand in the prior 11 months), power-factor adjustment and minimum-demand floors are not applied. If your site is subject to them, compute billing demand first.
• Load Management rate codesFor DS03, DS04, DS07 and DS08 (Rider LM), send the on-peak billing demand. The API does not derive it from interval data.
• Primary meteringThe 1.5% primary-metering kWh reduction (DS02, DS04) follows the tariff sheet, but Duke's current calculator cannot exercise it, so no Duke-computed bill verifies it.
• Mid-cycle rate changesRates apply by billing month, as in Duke's calculator. A bill whose service period straddles a rider change date may differ from Duke's invoice.
• July–September ridersRiders DCI, AER-R and SCR for July–September 2026 come from Duke's calculator workbook; the filed tariff sheets for those months are no longer published to cross-check them.
• Zero-rate ridersRiders RTO, LFA and CAF carry no charge in the covered filings and are not listed.
• Taxes and prorationTaxes, franchise fees and partial-month proration are excluded, as in Duke's own calculator. Real bills differ by those amounts.
• Consumption onlyNet metering (Rider NM) and export credits are not modeled.

Pricing

One plan while Rate DS is the only tariff. Self-serve: no sales call, no contract.