Eversource (CT) peak
& off-peak hours

Below is every active TOU rate plan we track for Eversource (CT) — 11 plans — with period boundaries verified against the published tariff. No price values; periods only.

Rate Plans

RATE-7 Residential Time-of-Day Electric Service

Residential
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Jan 1, 2026
Verified

RATE-27 Small Time-of-Day General Electric Service

Commercial
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Jan 1, 2026
Verified

RATE-27A Small Time-of-Day General Electric Service Alternative

Commercial
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Jul 1, 2026
Verified

RATE-37 Intermediate Time-of-Day General Electric Service

Commercial
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Jan 1, 2026
Verified

RATE-56 Intermediate Time-of-Day Electric Service - Non-Manufacturers

Commercial
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Apr 1, 2026
Verified

RATE-58 Large Time-of-Day Electric Service - Non-Manufacturers

Commercial
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Apr 1, 2026
Verified

RATE-EV-L Large Electric Vehicle Charging Service

EV
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Jul 1, 2026
Verified

RATE-EV-M Medium Electric Vehicle Charging Service

EV
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Jul 1, 2026
Verified

RATE-EV-MHD Medium Heavy Duty Electric Vehicle Charging Service

EV
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Jul 1, 2026
Verified

RATE-55 Intermediate Time-of-Day Electric Service - Manufacturers

Industrial
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Apr 1, 2026
Verified

RATE-57 Large Time-of-Day Electric Service - Manufacturers

Industrial
PeriodDaysHours
On-Peak Mon–Fri 12 PM – 8 PM
Effective
Apr 1, 2026
Verified
Free · no credit card

Use these Eversource (CT) hours in your app.

Current period and next transition for any ZIP or address.

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or read the docs

FAQ's

  1. What are Eversource (CT)'s on-peak hours?

    On the RATE-7 plan (Residential Time-of-Day Electric Service), on-peak hours run from 12 PM – 8 PM on weekdays. All remaining hours are classified as off-peak.

  2. Does Eversource (CT) charge more for electricity at certain times?

    Yes. Eversource (CT) 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 11 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Eversource (CT) 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 Eversource (CT) 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 Eversource (CT)'s plans?

    For customers on EV-specific plans like RATE-EV-L, RATE-EV-M, RATE-EV-MHD, 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.