Electricity rates — Salt River Project
A household served by Salt River Project using 1,000 kWh a month pays about $1,113.64 a year on the cheapest of 28 generally available plans — E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225) from Salt River Project, in effect since January 2026. Rates checked September 23, 2026. A further 11 schedules are published but restricted — means-tested, closed to new customers, or needing particular equipment — and they are priced further down.
Cheapest 25 of 39 priced plans, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| E-27P Tier 1 SRP Residential Demand Price Plan Pilot - Pilot Price Plan for Residential Demand Rate Service (Amp Service 0-225)time-of-use · demand charge · in effect since January 2026 · pilot programme | $1,113.64 | — | 9.3¢ |
| E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)✓ cheapesttime-of-use · demand charge · in effect since January 2026 | $1,113.64 | — | 9.3¢ |
| E-27P Tier 2 SRP Residential Demand Price Plan Pilot - Pilot Price Plan for Residential Demand Rate Service (Amp Service 0-225)time-of-use · demand charge · in effect since January 2026 · pilot programme | $1,233.64 | +$120.00 | 10.3¢ |
| E-27 Tier 2 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)time-of-use · demand charge · in effect since January 2026 | $1,233.64 | +$120.00 | 10.3¢ |
| E-15 Tier 1 CUSTOMER GENERATION AVERAGE DEMAND PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)time-of-use · demand charge · in effect since January 2026 | $1,265.17 | +$151.53 | 10.5¢ |
| E-27P Tier 3 SRP Residential Demand Price Plan Pilot - Pilot Price Plan for Residential Demand Rate Service (Amp Service 225+)time-of-use · demand charge · in effect since January 2026 · pilot programme | $1,353.64 | +$240.00 | 11.3¢ |
| E-27 Tier 3 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 225+)time-of-use · demand charge · in effect since January 2026 | $1,353.64 | +$240.00 | 11.3¢ |
| E-15 Tier 2 CUSTOMER GENERATION AVERAGE DEMAND PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)time-of-use · demand charge · in effect since January 2026 | $1,385.17 | +$271.53 | 11.5¢ |
| E-15 Tier 3 CUSTOMER GENERATION AVERAGE DEMAND PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 225+)time-of-use · demand charge · in effect since January 2026 | $1,505.17 | +$391.53 | 12.5¢ |
| E-29 Tier 1 SRP Electric Vehicle Price Plan - Residential Electric Vehicle Price Plantime-of-use · in effect since January 2026 · needs an electric vehicle | $1,510.32 | +$396.68 | 12.6¢ |
| E-26 Tier 1 SRP Time-of-Use Price Plan™ (TOU) - STANDARD PRICE PLAN FOR RESIDENTIAL TIME-OF-USE SERVICEtime-of-use · in effect since January 2026 | $1,525.08 | +$411.44 | 12.7¢ |
| E-22 Tier 1 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICEtime-of-use · in effect since January 2026 | $1,576.27 | +$462.63 | 13.1¢ |
| E-21 Tier 1 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICEtime-of-use · in effect since January 2026 | $1,584.93 | +$471.29 | 13.2¢ |
| E-23 BASIC PRICE PLAN FOR RESIDENTIAL SERVICE Low Income Ratepriced by season · tiered · in effect since January 2025 · low-income rate | $1,599.00 | +$485.36 | 13.3¢ |
| E-24 M-POWER PRICE PLAN FOR PRE-PAY RESIDENTIAL SERVICEpriced by season · in effect since November 2023 | $1,613.80 | +$500.16 | 13.4¢ |
| Daytime Saver Pilottime-of-use · in effect since November 2023 · pilot programme | $1,625.02 | +$511.38 | 13.5¢ |
| E-29 Tier 2 SRP Electric Vehicle Price Plan - Residential Electric Vehicle Price Plantime-of-use · in effect since January 2026 · needs an electric vehicle | $1,630.32 | +$516.68 | 13.6¢ |
| E-26 Tier 2 SRP Time-of-Use Price Plan™ (TOU) - STANDARD PRICE PLAN FOR RESIDENTIAL TIME-OF-USE SERVICEtime-of-use · in effect since January 2026 | $1,645.08 | +$531.44 | 13.7¢ |
| E-28 Tier 1 PRICE PLAN FOR RESIDENTIAL TIME-OF-DAY SERVICE WITH SUPER OFF-PEAK HOURStime-of-use · in effect since January 2026 | $1,652.98 | +$539.34 | 13.8¢ |
| E-23 Tier 1 BASIC PRICE PLAN FOR RESIDENTIAL SERVICEpriced by season · in effect since January 2026 | $1,659.40 | +$545.76 | 13.8¢ |
| E-24 Tier 1 M-POWER PRICE PLAN FOR PRE-PAY RESIDENTIAL SERVICEpriced by season · in effect since January 2026 | $1,659.40 | +$545.76 | 13.8¢ |
| E-14 Tier 1 RESIDENTIAL CUSTOMER GENERATION ELECTRIC VEHICLE EXPORT PRICE PLAN (Amp Service 0-225)time-of-use · in effect since January 2026 · needs an electric vehicle | $1,695.82 | +$582.18 | 14.1¢ |
| E-22 Tier 2 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICEtime-of-use · in effect since January 2026 | $1,696.27 | +$582.63 | 14.1¢ |
| E-13 Tier 1 Customer Generation Time-of-Use Export Price Plan for Residential Service (AMP Service 0-225)time-of-use · in effect since January 2026 | $1,702.84 | +$589.20 | 14.2¢ |
| E-21 Tier 2 SRP EZ-3 Price Plan - PRICE PLAN FOR RESIDENTIAL SUPER PEAK TIME-OF-USE SERVICEtime-of-use · in effect since January 2026 | $1,704.93 | +$591.29 | 14.2¢ |
14 further schedules are published and priced but not listed here — mostly regional and seasonal variants of the plans above. The dearest of them costs $1,942.84 a year at this usage.
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- 500 kWh/mo — cheapest $676.81 (E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)), dearest $1,211.43, a $534.62 spread
- 1,000 kWh/mo — cheapest $1,113.64 (E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)), dearest $1,942.84, a $829.20 spread
- 2,000 kWh/mo — cheapest $1,987.25 (E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225)), dearest $3,405.71, a $1,418.46 spread
What a typical bill costs
At 1,000 kWh a month the 28 generally available plans here run from $1,113.64 on E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225) to $1,942.84 on E-13 Tier 3 Customer Generation Time-of-Use Export Price Plan for Residential Service (AMP Service 225+), with a median of $1,677.84.
Effective rates, bill divided by kilowatt-hours, span 9.3¢ to 16.2¢ per kWh at that usage.
What Salt River Project's customers were billed in 2024
Priced at 1,211 kWh a month, what Salt River Project's customers used on average, its open plans come within 1% of what EIA reports they were billed in 2024: the plans here describe its bills well.
| Ownership, as EIA classes it | Political subdivision |
|---|---|
| Full-service homes in Arizona | 1,053,407 |
| Share of Arizona's households | 35% |
| Average use per home | 1,211 kWh a month |
| Average bill per home | $162.97 a month |
| Billed per kWh, riders included | 13.5¢ |
| Median open plan here, at that use | 13.5¢ |
Salt River Project in U.S. Energy Information Administration, Form EIA-861, 2024 (Sales_Ult_Cust_2024.xlsx), retrieved September 23, 2026.
How it compares
Among the 109 utilities indexed, Salt River Project's cheapest open plan is the 6th-lowest, 32% less than their median of $1,649.16. It sits between Lincoln Electric System ($1,113.60) and MidAmerican Energy Co ($1,122.87).
No other utility indexed in Arizona has a cheaper open plan; the other 2 all start higher.
Its fixed charge, $20.00 a month on E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225), is higher than on the cheapest plan of 81 of the other 108 utilities.
E-24 M-POWER PRICE PLAN FOR PRE-PAY RESIDENTIAL SERVICE changes price with the season: a kWh costs 3.9¢ more in July to August than in November to April, and the same 1,000 kWh is billed $156.10 in its dearest month against $117.60 in its cheapest.
In the guides: What a bill costs before a single kilowatt-hour · The price that changes with the month
How the answer changes with usage
E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225) is cheapest at every level tested — $676.81 a year at 500 kWh a month, $1,987.25 at 2,000 kWh.
The penalty for a poor choice grows with usage: $534.62 a year at 500 kWh against $1,418.46 at 2,000 kWh.
Cheapest 6 plans at 1,000 kWh a month
E-27P Tier 1 SRP Residential Demand Price Plan Pilot - Pilot Price Plan for Residential Demand Rate Service (Amp Service 0-225) — $1,113.64 a year, 9.3¢ per kWh effective, time-of-use and demand-charged. It carries a $20.00 monthly standing charge. In effect since January 2026. Restricted: pilot programme.
E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225) — $1,113.64 a year, 9.3¢ per kWh effective, time-of-use and demand-charged. It carries a $20.00 monthly standing charge. In effect since January 2026.
E-27P Tier 2 SRP Residential Demand Price Plan Pilot - Pilot Price Plan for Residential Demand Rate Service (Amp Service 0-225) — $1,233.64 a year, 10.3¢ per kWh effective, time-of-use and demand-charged. It carries a $30.00 monthly standing charge. In effect since January 2026. Restricted: pilot programme.
E-27 Tier 2 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225) — $1,233.64 a year, 10.3¢ per kWh effective, time-of-use and demand-charged. It carries a $30.00 monthly standing charge. In effect since January 2026.
E-15 Tier 1 CUSTOMER GENERATION AVERAGE DEMAND PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225) — $1,265.17 a year, 10.5¢ per kWh effective, time-of-use and demand-charged. It carries a $20.00 monthly standing charge. In effect since January 2026.
E-27P Tier 3 SRP Residential Demand Price Plan Pilot - Pilot Price Plan for Residential Demand Rate Service (Amp Service 225+) — $1,353.64 a year, 11.3¢ per kWh effective, time-of-use and demand-charged. It carries a $40.00 monthly standing charge. In effect since January 2026. Restricted: pilot programme.
How these plans are structured
Of 39 priceable plans: 1 tiered, 31 time-of-use, 8 priced by season, 9 with demand charges.
Fixed monthly charges run from $20.00 to $40.00.
Who provides these plans
EIA-861 lists Salt River Project serving homes in Arizona and in no other state, which is how its plans are placed there. 39 of its 39 published residential schedules can be priced.
The largest saving available here
Moving from E-13 Tier 3 Customer Generation Time-of-Use Export Price Plan for Residential Service (AMP Service 225+) to E-27 Tier 1 SRP CUSTOMER GENERATION PRICE PLAN FOR RESIDENTIAL SERVICE (Amp Service 0-225) saves $829.20 a year at 1,000 kWh a month, with no change in consumption.
What this does not cover
31 of these plans price by the hour, so their figures are marked lower confidence.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 23, 2026.