Home › SRP › Peak hours
SRP peak hours: is it on-peak right now?
On SRP's main time-of-day plan, Conserve 6–9 p.m. and Save (E-28), the highest price runs from 6 to 9 p.m. on weekdays and the lowest from 8 a.m. to 3 p.m. every day. Times are Arizona time, which does not change for daylight saving.
Loading the current time in Arizona time (MST, no daylight saving)…
On-peak and super off-peak hours by plan
| Plan | On-peak (highest price) | Super off-peak (lowest price) | Notes |
|---|---|---|---|
| Conserve 6–9 p.m. and Save (E-28) | 6–9 p.m., Monday–Friday, all year | 8 a.m.–3 p.m., every day | Open to new customers; no demand charge |
| Manage Demand 5–10 p.m. and Save (E-16) | 5–10 p.m., Monday–Friday, all year | 8 a.m.–3 p.m., every day | Adds a monthly demand charge based on your highest hourly use from 5 to 10 p.m. |
| Electric Vehicle Price Plan (E-29) | May–Oct: 2–8 p.m.; Nov–Apr: 5–9 a.m. and 5–9 p.m.; weekdays | 11 p.m.–5 a.m., every day | Closed to new customers; ends by the November 2029 billing cycle |
| Basic (E-23) | None | None | Same price at every hour |
All other hours are off-peak. On-peak hours never apply on weekends or on the six SRP holidays listed below.
Prices and hours, season by season
Conserve 6–9 p.m. and Save (E-28)
Highest price 6–9 p.m. on weekdays; lowest price 8 a.m.–3 p.m. every day.
| Season | On-peak | Off-peak | Super off-peak |
|---|---|---|---|
| Winter (Nov–Apr) | 15.14¢ | 13.61¢ | 4.38¢ |
| Summer (May, Jun, Sep, Oct) | 18.91¢ | 15.12¢ | 4.01¢ |
| Summer peak (Jul–Aug) | 40.26¢ | 12.82¢ | 6.67¢ |
All year: On-peak: 6 p.m.–9 p.m., weekdays. Super off-peak: 8 a.m.–3 p.m., every day. Off-peak: all other hours.
Effective: November 2025 billing cycle. Source: SRP rate information
Manage Demand 5–10 p.m. and Save (E-16)
Lower energy prices plus a monthly demand charge based on your highest hourly use during 5–10 p.m. on weekdays.
| Season | On-peak | Off-peak | Super off-peak |
|---|---|---|---|
| Winter (Nov–Apr) | 11.19¢ | 9.94¢ | 4.38¢ |
| Summer (May, Jun, Sep, Oct) | 12.57¢ | 9.95¢ | 3.93¢ |
| Summer peak (Jul–Aug) | 16.54¢ | 9.96¢ | 6.22¢ |
Demand charge: Winter $9.69/kW, Summer $13.64/kW, Summer peak $17.86/kW. Average of each weekday's highest 60-minute demand during 5–10 p.m.
All year: On-peak: 5 p.m.–10 p.m., weekdays. Super off-peak: 8 a.m.–3 p.m., every day. Off-peak: all other hours.
Effective: November 2025 billing cycle. Source: SRP rate information
Electric Vehicle Price Plan (E-29) · closed to new customers
Closed to new customers since November 2025; current customers can stay until it ends by the November 2029 billing cycle.
| Season | On-peak | Off-peak | Super off-peak |
|---|---|---|---|
| Winter (Nov–Apr) | 11.03¢ | 9.69¢ | 7.98¢ |
| Summer (May, Jun, Sep, Oct) | 22.01¢ | 9.70¢ | 7.99¢ |
| Summer peak (Jul–Aug) | 26.10¢ | 9.71¢ | 8.00¢ |
Winter: On-peak: 5 a.m.–9 a.m., weekdays; 5 p.m.–9 p.m., weekdays. Super off-peak: 11 p.m.–5 a.m., every day. Off-peak: all other hours.
Summer and summer peak: On-peak: 2 p.m.–8 p.m., weekdays. Super off-peak: 11 p.m.–5 a.m., every day. Off-peak: all other hours.
Effective: November 2025 billing cycle. Source: SRP rate information
Basic (E-23)
Same price at every hour of the day.
| Season | All hours |
|---|---|
| Winter (Nov–Apr) | 11.03¢ |
| Summer (May, Jun, Sep, Oct) | 12.10¢ |
| Summer peak (Jul–Aug) | 14.04¢ |
Effective: November 2025 billing cycle. Source: SRP rate information
Holidays with no on-peak hours
| Holiday | 2026 | 2027 |
|---|---|---|
| New Year's Day (observed) | Thu, Jan 1, 2026 | Fri, Jan 1, 2027 |
| Memorial Day | Mon, May 25, 2026 | Mon, May 31, 2027 |
| Independence Day (observed) | Fri, Jul 3, 2026 | Mon, Jul 5, 2027 |
| Labor Day | Mon, Sep 7, 2026 | Mon, Sep 6, 2027 |
| Thanksgiving Day | Thu, Nov 26, 2026 | Thu, Nov 25, 2027 |
| Christmas Day (observed) | Fri, Dec 25, 2026 | Fri, Dec 24, 2027 |
When New Year's Day, Independence Day or Christmas falls on a weekend, the observed weekday is the holiday. We follow the usual federal rule (Saturday → Friday, Sunday → Monday); check your SRP bill if a date matters to you.
Common questions
Does SRP move peak hours for daylight saving time?
No. Arizona stays on Mountain Standard Time all year, so 6–9 p.m. is always 6–9 p.m. on your clock.
Are weekends on-peak?
No. On-peak prices apply Monday through Friday only. The 8 a.m.–3 p.m. super off-peak price applies every day, weekends and holidays included.
What happened to SRP's Time-of-Use and EZ-3 plans?
SRP now lists Time-of-Use, EZ-3, Residential Demand and the Electric Vehicle Price Plan as discontinued. Its current residential plans are Conserve 6–9 p.m. and Save (E-28), Manage Demand 5–10 p.m. and Save (E-16), Basic and the prepaid M-Power plan, which uses Basic prices.
Which plan is cheapest for my home?
It depends on how much of your use you can move out of the evening. Try the SRP price plan calculator, or see what charging an EV costs on each plan.
Sources and notes
- Prices are SRP's totals per kWh from the rate schedules effective with the November 2025 billing cycle, including the fuel and purchased power adjustment.
- SRP's plan comparison page shows E-23 and E-28 prices 0.06¢ lower than these schedules (it links a ratebook effective November 2026); we will update once that ratebook is confirmed.
- Taxes, city fees and riders such as the Economy Discount are not included.
Rates last checked against SRP's published information on 2026-11-03.