National Grid (NY) peak
& off-peak hours
Below is every active TOU rate plan we track for National Grid (NY) — 4 plans — with period boundaries verified against the published tariff. No price values; periods only.
Rate Plans
SC1-C Residential and Farm Service - Optional Large Time-of-Use (SC-1-C)
Residential| Period | Days | Hours |
|---|---|---|
| Jun 1 – Aug 31 | ||
| On-Peak | Mon–Fri | 11 AM – 5 PM |
| Mid-Peak | Mon–Fri | 8 AM – 11 AM |
| Mid-Peak | Mon–Fri | 5 PM – 8 PM |
| Dec 1 – Feb 29 | ||
| On-Peak | Mon–Fri | 5 PM – 8 PM |
| Mid-Peak | Mon–Fri | 9 AM – 5 PM |
SC1-VTOU Residential Optional Time of Use (SC-1 Special Provision L)
Residential| Period | Days | Hours |
|---|---|---|
| Jun 1 – Aug 31 | ||
| Critical Peak | Mon–Fri | 2 PM – 6 PM |
| All year | ||
| On-Peak | Every day | 7 AM – 11 PM |
SC2-ND-TOU Small General Service - Non-Demand Optional Time of Use (SC-2 Special Provision O)
Commercial| Period | Days | Hours |
|---|---|---|
| On-Peak | Mon–Fri | 12 PM – 8 PM |
| Mid-Peak | Mon–Fri | 7 AM – 12 PM |
| Mid-Peak | Mon–Fri | 8 PM – 10 PM |
EV-PHASE-IN Rule 48.2 — Commercial Electric Vehicle Phase-In Rates
EV| Period | Days | Hours |
|---|---|---|
| Jun 1 – Sep 30 | ||
| On-Peak | Mon–Fri | 3 PM – 7 PM |
| Mid-Peak | Mon–Fri | 8 AM – 10 PM |
| Oct 1 – May 31 | ||
| On-Peak | Mon–Fri | 8 AM – 10 PM |
Use these National Grid (NY) hours in your app.
Current period and next transition for any ZIP or address.
FAQ's
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What are National Grid (NY)'s on-peak hours?
On the SC1-C plan (Residential and Farm Service - Optional Large Time-of-Use (SC-1-C)), on-peak hours run from 11 AM – 5 PM and 5 PM – 8 PM on weekdays. All remaining hours are classified as off-peak.
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Does National Grid (NY) charge more for electricity at certain times?
Yes. National Grid (NY) 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 4 active schedules; tou.tools does not publish pricing ($/kWh) details.
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How do I get National Grid (NY) 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.
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Do National Grid (NY) 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.
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What is the best time to charge an EV under National Grid (NY)'s plans?
For customers on EV-specific plans like EV-PHASE-IN, 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.