GreyStone Power Corporation time-of-use hours

On RATE-300, on-peak hours run 2 PM – 8 PM on weekdays. Below is every active TOU rate plan we track for GreyStone Power Corporation — 1 plan — with period boundaries verified against the published tariff. No price values; periods only.

For developers & agents

Query GreyStone Power Corporation 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 GreyStone Power Corporation, with its period boundaries.

RATE-300 Residential Electric Vehicle Service EV
PeriodSeasonDaysHours
Super Off-Peak All year Every day 11 PM – 7 AM
On-Peak Jun 1 – Sep 30 Mon–Fri 2 PM – 8 PM
Effective
Jun 1, 2021
Verified

Frequently asked

  1. What are GreyStone Power Corporation's on-peak hours?

    On the RATE-300 plan (Residential Electric Vehicle Service), on-peak hours run from 2 PM – 8 PM on weekdays. All remaining hours are classified as off-peak.

  2. Does GreyStone Power Corporation charge more for electricity at certain times?

    Yes. GreyStone Power Corporation 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 1 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get GreyStone Power Corporation 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 GreyStone Power Corporation 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 GreyStone Power Corporation's plans?

    For customers on EV-specific plans like RATE-300, 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.