E-21 Tier 1 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICE
When does peak hit on Salt River Project’s E-21 Tier 1 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICE? Peak hits 3pm–6pm every day, all year.
- peak36.61¢
- mid30.96¢
- off-peak9.70¢
What does E-21 Tier 1 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICE cost a year?
| Household | Uses | A month | Per year | Works out to |
|---|---|---|---|---|
| Apartment One or two people, no central air, no electric heat | 4,866 kWh | $67 | $800 | 16.4¢ / kWh |
| Family home Three or four people with central air conditioning | 9,453 kWh | $115 | $1,384 | 14.6¢ / kWh |
| Home with an EV Same house, plus an electric car charging overnight | 13,103 kWh | $146 | $1,752 | 13.4¢ / kWh |
Estimates, not quotes. We run three made-up but realistic households through this tariff hour by hour for a full year — including the way air conditioning loads the afternoon and an EV loads the small hours. Your own bill depends on when you actually use electricity, which is exactly the thing a per-kWh number hides.
What you actually pay
| Period | Rate | Applies when |
|---|---|---|
| peak | 36.61¢ | 3pm–6pm, July–August |
| mid | 30.96¢ | 3pm–6pm, May–June, September–October |
| mid | 12.94¢ | 3pm–6pm, November–April |
| mid | 10.69¢ | 6pm–3pm, midnight–midnight, July–August |
| mid | 10.30¢ | 6pm–3pm, midnight–midnight, May–June, September–October |
| off-peak | 9.70¢ | 6pm–3pm, midnight–midnight, November–April |
Plus a fixed charge of $20 per month.
Should you be on E-21 Tier 1 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICE?
This is a time-of-use plan, which means the clock decides your bill as much as the meter does. At the worst hour you pay 36.6¢ a kWh; at the best hour, 10.7¢ — 3.4× apart for identical electricity.
That gap is worth real money only if you can move load into it. Every kilowatt-hour a day you shift from 3pm to midnight is about $95 a year. A dishwasher run is roughly 1.5 kWh; an EV commute charge is 8 to 12. If your day is fixed — you are home in the evening and the air conditioner runs when it runs — a plan like this costs you more, not less.
Before a single kilowatt-hour moves, this plan charges $240 a year in fixed fees. On the apartment above that is 30% of the whole bill; on the house with a car charging in it, 14%. Fixed charges are invisible in a cents-per-kWh comparison and they punish small users hardest — if you use very little electricity, the headline rate is the least important number on this page.
Expect the bill to move with the calendar. The same family home costs about $180 in July and $80 in February — a $100 spread driven by heating and cooling far more than by anything you chose. Budget against the July figure, not the average, and a summer bill stops being a surprise.
How it compares to Salt River Project’s other plans
Measured against the other residential plans this utility files, a family home lands 5th cheapest of 21. The cheapest option, E-29 Tier 1 SRP Electric Vehicle Price Plan - Residential Electric Vehicle Price Plan, would run about $24 a year less.
Against E-23 Tier 1 BASIC PRICE PLAN FOR RESIDENTIAL SERVICE, which looks like the plan you land on by default, this one comes out $5 more per year (0%). We infer the default from the tariff structure rather than a flag in the data, so confirm it against your own bill before you switch.
Other Salt River Project plans
- E-13 Tier 1 Customer Generation Time-of-Use Export Price Plan for Residential Service (AMP Service 0-225)TOU
- E-13 Tier 2 Customer Generation Time-of-Use Export Price Plan for Residential Service (AMP Service 0-225)TOU
- E-13 Tier 3 Customer Generation Time-of-Use Export Price Plan for Residential Service (AMP Service 225+)TOU
- E-14 Tier 1 RESIDENTIAL CUSTOMER GENERATION ELECTRIC VEHICLE EXPORT PRICE PLAN (Amp Service 0-225)TOU
- E-14 Tier 2 RESIDENTIAL CUSTOMER GENERATION ELECTRIC VEHICLE EXPORT PRICE PLAN (Amp Service 0-225)TOU
- E-14 Tier 3 RESIDENTIAL CUSTOMER GENERATION ELECTRIC VEHICLE EXPORT PRICE PLAN (Amp Service 225+)TOU
- E-15 Tier 1 CUSTOMER GENERATION AVERAGE DEMAND PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)demand
- E-15 Tier 2 CUSTOMER GENERATION AVERAGE DEMAND PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)demand
- E-15 Tier 3 CUSTOMER GENERATION AVERAGE DEMAND PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 225+)demand
- E-21 Tier 2 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICETOU
- E-21 Tier 3 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICETOU
- E-22 Tier 1 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICETOU
Who can be on Salt River Project’s E-21 Tier 1 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICE?
Eligibility is not our judgement — it is written into the tariff Salt River Project filed. This is what that document says:
Service under this price plan is applicable to a single family house, a single unit in a multiple family house, a single unit in a multiple apartment, a manufactured housing unit, or other residential dwelling, supplied through one point of delivery and measured through one meter.
Shortened — the clause runs longer in the filing. Quoted from the filed tariff. Your utility decides eligibility, not us; check with them before you switch.
If this is new to you
- When is electricity cheapest? Off-peak hours explained
Overnight, usually. All weekend, often. The exact hours are in your tariff, not in a rule of thumb.
- Should you switch to a time-of-use electricity plan?
A wide peak-to-off-peak gap is a lever, not a saving. Levers need something to move.
- When should you charge an electric car at home?
The single biggest load most homes can move, and the easiest to automate.
- Why is my electric bill so high in summer?
Usually three causes at once, and only one of them is your air conditioner.
Where this comes from
- Effective
- 2026-01-01
the date this tariff took effect
- Covers
- delivery + supply
the ZIP-code service map lists this territory as bundled, so the utility sells delivery and supply together
- Enrollment
- open to new customers
Tariff document: https://www.srpnet.com/assets/srpnet/pdf/price-plans/FY26/TCA%20Ratebooks/2025-Ratebook-with-2026-TCA-with-cover.pdf