Duke Energy Indiana peak
& off-peak hours

Below is every active TOU rate plan we track for Duke Energy Indiana — 2 plans — with period boundaries verified against the published tariff. No price values; periods only.

Rate Plans

LLF-TOU Optional Rate LLF — Time-Of-Use Service

Commercial
PeriodDaysHours
Jun 1 – Sep 30
On-Peak Mon–Fri 11:01 AM – 6 PM
Dec 1 – Mar 31
On-Peak Mon–Fri 6:01 AM – 2 PM
On-Peak Mon–Fri 6:01 PM – 9 PM
Effective
Sep 15, 2021
Verified

HLF-TOU Optional Rate HLF — Time-Of-Use Service

Industrial
PeriodDaysHours
Jun 1 – Sep 30
On-Peak Mon–Fri 11:01 AM – 6 PM
Dec 1 – Mar 31
On-Peak Mon–Fri 6:01 AM – 2 PM
On-Peak Mon–Fri 6:01 PM – 9 PM
Effective
Jul 30, 2020
Verified
Free · no credit card

Use these Duke Energy Indiana hours in your app.

Current period and next transition for any ZIP or address.

Get a free API key

250 calls/mo · REST & MCP

or read the docs

FAQ's

  1. What are Duke Energy Indiana's on-peak hours?

    On the LLF-TOU plan (Optional Rate LLF — Time-Of-Use Service), on-peak hours run from 11:01 AM – 6 PM and 6:01 AM – 2 PM and 6:01 PM – 9 PM on weekdays. All remaining hours are classified as off-peak.

  2. Does Duke Energy Indiana charge more for electricity at certain times?

    Yes. Duke Energy Indiana offers time-of-use (TOU) rate plans where electricity costs vary depending on the period. The period—peak, off-peak, mid-peak, or super off-peak—depends on the time, day, and season. This page lists boundaries for 2 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Duke Energy Indiana time-of-use periods in my app?

    Schedules are accessible programmatically via the tou.tools REST API and MCP server for AI agents. By querying a U.S. address or ZIP code, your application can instantly retrieve the current period and next scheduled transition time. Developer API keys are free.

  4. Do Duke Energy Indiana time-of-use hours change during holidays or seasons?

    Yes. Peak hours and rate periods can vary by season (typically summer and winter halves) and special holidays. While some schedules like E-ELEC keep stable hours year-round, others introduce super off-peak windows or adjust peak times. Check each rate plan card above for specific seasonal boundaries.