Eversource (Connecticut) peak
& off-peak hours

Below is every active TOU rate plan we track for Eversource (Connecticut) — 7 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
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Effective
Jan 1, 2026
Verified

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

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

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

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

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

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

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

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

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

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

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

Industrial
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Effective
Apr 1, 2026
Verified
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Use these Eversource (Connecticut) hours in your app.

Current period and next transition for any ZIP or address.

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FAQ's

  1. What are Eversource (Connecticut)'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 (Connecticut) charge more for electricity at certain times?

    Yes. Eversource (Connecticut) 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 7 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Eversource (Connecticut) 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 (Connecticut) 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.