Avista Corp time-of-use hours

On WA-SCHEDULE-7, on-peak hours run 2 PM – 7 PM and 6 AM – 9 AM and 5 PM – 8 PM on weekdays. Below is every active TOU rate plan we track for Avista Corp — 6 plans — with period boundaries verified against the published tariff. No price values; periods only.

For developers & agents

Query Avista Corp periods programmatically.

One call returns the current period and the next transition time for any U.S. ZIP or address — GET /query/current over REST, or the same data through MCP for AI agents.

Get a free API key Read the docs

Rate plan schedules

Every active time-of-use plan we track for Avista Corp, with its period boundaries.

WA-SCHEDULE-7 Time-of-Use — Residential Service (Schedule 7) Residential
PeriodSeasonDaysHours
On-Peak Apr 1 – Oct 31 Mon–Fri 2 PM – 7 PM
On-Peak Nov 1 – Mar 31 Mon–Fri 6 AM – 9 AM
On-Peak Nov 1 – Mar 31 Mon–Fri 5 PM – 8 PM
Effective
Jan 1, 2026
Verified
WA-SCHEDULE-8 Time-of-Use with Morning Discount — Residential Service (Schedule 8) Residential
PeriodSeasonDaysHours
Super Off-Peak May 1 – Sep 30 Mon–Fri 9 AM – 12 PM
On-Peak May 1 – Sep 30 Mon–Fri 2 PM – 7 PM
On-Peak Oct 1 – Apr 30 Mon–Fri 6 AM – 10 AM
On-Peak Oct 1 – Apr 30 Mon–Fri 5 PM – 9 PM
Effective
Jan 1, 2026
Verified
WA-SCHEDULE-17 Time-of-Use — General Service (Schedule 17) Commercial
PeriodSeasonDaysHours
On-Peak Apr 1 – Oct 31 Mon–Fri 2 PM – 7 PM
On-Peak Nov 1 – Mar 31 Mon–Fri 6 AM – 9 AM
On-Peak Nov 1 – Mar 31 Mon–Fri 5 PM – 8 PM
Effective
Jan 1, 2026
Verified
WA-SCHEDULE-18 Time-of-Use with Morning Discount — General Service (Schedule 18) Commercial
PeriodSeasonDaysHours
Super Off-Peak May 1 – Sep 30 Mon–Fri 9 AM – 12 PM
On-Peak May 1 – Sep 30 Mon–Fri 2 PM – 7 PM
On-Peak Oct 1 – Apr 30 Mon–Fri 6 AM – 10 AM
On-Peak Oct 1 – Apr 30 Mon–Fri 5 PM – 9 PM
Effective
Jan 1, 2026
Verified
WA-SCHEDULE-13 Optional Commercial Electric Vehicle Rate — General Service (Schedule 13) EV
PeriodSeasonDaysHours
On-Peak Apr 1 – Oct 31 Every day 3 PM – 7 PM
On-Peak Nov 1 – Mar 31 Every day 7 AM – 10 AM
On-Peak Nov 1 – Mar 31 Every day 5 PM – 8 PM
Effective
Jan 1, 2026
Verified
WA-SCHEDULE-23 Optional Commercial Electric Vehicle Rate — Large General Service (Schedule 23) EV
PeriodSeasonDaysHours
On-Peak Apr 1 – Oct 31 Every day 3 PM – 7 PM
On-Peak Nov 1 – Mar 31 Every day 7 AM – 10 AM
On-Peak Nov 1 – Mar 31 Every day 5 PM – 8 PM
Effective
Jan 1, 2026
Verified

Frequently asked

  1. What are Avista Corp's on-peak hours?

    On the WA-SCHEDULE-7 plan (Time-of-Use — Residential Service (Schedule 7)), on-peak hours run from 2 PM – 7 PM and 6 AM – 9 AM and 5 PM – 8 PM on weekdays. All remaining hours are classified as off-peak.

  2. Does Avista Corp charge more for electricity at certain times?

    Yes. Avista Corp 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 6 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Avista Corp 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 Avista Corp 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.

  5. What is the best time to charge an EV under Avista Corp's plans?

    For customers on EV-specific plans like WA-SCHEDULE-13, WA-SCHEDULE-23, the most cost-effective time to charge is during super off-peak or off-peak hours. Charging during these designated windows significantly reduces electricity costs and minimizes demand on the grid.