Cheap power from a public district
Salt River Project's average residential electricity price has risen from 11.59 cents per kWh in 2015 to 13.98 cents in 2025, an increase of about 21 percent, or roughly 1.9 percent per year. The chart shows SRP's average residential price by year. Hover any point for the exact figure.
Old SRP solar plans vs the new one
Legacy E-15 and E-27 plans
The plans that made SRP famous among solar shoppers for demand charges, about $9.16 per kW of on peak demand added monthly on top of net billing. Closing to new enrollment and sunsetting for all solar customers by November 2029, so legacy holders need an exit plan.
New E-13 Time of Use Export
No demand charge. Grid energy is priced on time of use periods with much higher on peak prices, and exports earn a flat 3.45 cents regardless of hour. The design pays for self-consumption and batteries, not for surplus.
Current residential rates
SRP residential rates are shown below, from the utility's published tariffs and the public Utility Rate Database. Rates vary by plan, season, and usage and change over time.
| Plan | Energy charge | Fixed / basic |
|---|---|---|
| E-23 Basic Price Plan (flat, no TOU or demand) - effective Nov 2025 | Winter 11.03 c/kWh; Summer (May, Jun, Sep, Oct) 12.10 c/kWh; Summer Peak (Jul, Aug) 14.04 c/kWh | Monthly service charge $20 (Tier 1 multifamily), $30 (Tier 2 typical single-family), or $40 (Tier 3, >225 amp service) |
| E-23 Basic Price Plan - prior schedule (effective May 2019, incl. Nov 2023 fuel adjustment) | Winter 9.76 c/kWh; Summer 12.67 c/kWh (0-2,000 kWh) / 13.10 c/kWh (2,001+ kWh); Summer Peak 13.33 c/kWh (0-2,000 kWh) / 14.46 c/kWh (2,001+ kWh) | Monthly service charge $20.00 (flat, all customers) |
| E-13 Time-of-Use Export Price Plan (solar; TOU energy, no demand charge) - effective Nov 2025 | On-peak: Summer 20.89 c/kWh, Summer Peak 23.44 c/kWh, Winter 14.31 c/kWh. Off-peak: Summer 11.24 c/kWh, Summer Peak 11.25 c/kWh, Winter 10.47 c/kWh. Solar exports credited at 3.45 c/kWh | Monthly service charge $20 / $30 / $40 by tier (same tiers as E-23) |
Rates are from SRP's official FY26 ratebooks (E-23 Basic and E-13 Time-of-Use Export), effective with the November 2025 billing cycle, plus the prior E-23 schedule (effective May 2019, with the November 2023 fuel and purchased power adjustment) for comparison. SRP totals include base distribution/transmission/generation plus the Fuel and Purchased Power Adjustment. Summer = May, Jun, Sep, Oct billing cycles; Summer Peak = Jul, Aug; Winter = Nov-Apr. SRP sets its own prices through a public pricing process (no Arizona Corporation Commission rate case), so these are board-approved tariffs, not ACC-ordered rates.
A flat 3.45 cents, set by SRP's own board
SRP does not offer traditional retail net metering. Because SRP is a self-governed public power district outside Arizona Corporation Commission jurisdiction, it sets its own solar rules. Rooftop solar that you use in your home offsets electricity at the full retail rate, but any surplus you export to the grid is bought back at a low flat export credit, currently 3.45 cents/kWh, regardless of time of day, on the new Time-of-Use Export plan (effective Nov 2025) - well below the roughly 11 to 14 cents/kWh you pay to buy power back. New solar customers go onto TOU export plans (E-13 / E-28): the newest E-13 TOU Export plan has no demand charge but prices grid energy on time-of-use periods (much higher on-peak), so the value of solar depends heavily on self-consumption and battery storage rather than export credits. SRP's older legacy solar plans (E-15 Average Demand and E-27 Customer Generation), which add monthly demand charges of about $9.16 per kW of on-peak demand on top of a net-billing credit, are closing to new enrollment and sunset for all solar customers by November 2029. Bottom line: this is a net-billing / low export-credit (and historically demand-charge) structure, not 1-for-1 retail net metering, so solar economics favor self-consumption and storage.
Self-consumption or nothing
SRP is a self governed public power district outside Arizona Corporation Commission jurisdiction, which is why its solar rules look nothing like APS's next door. There is no retail net metering and no RCP framework, just a low flat export credit and time of use pricing that concentrates cost into peak windows.
Grid power here is cheap, roughly 11 to 14 cents, so each offset kWh saves less than it would in California, and exports at 3.45 cents are close to a rounding error. Systems that pencil are sized tight to usage, often with storage aimed at the peak periods. Anyone still on E-15 or E-27 should plan for the November 2029 sunset rather than be surprised by it. Get a site-specific quote.
SRP service area
SRP serves Phoenix metropolitan area / central Arizona (the Salt River Valley / east Valley, including Mesa, Tempe, Chandler, Gilbert, Scottsdale, and parts of Phoenix), spanning portions of Maricopa, Gila, and Pinal Counties..
To confirm whether a specific address is served by SRP, check your electricity bill. A ZIP lookup tool is coming to this site.
Full data and sources
Per-utility prices are computed from EIA Form 861 (bundled residential revenue divided by sales), which reconciles to the EIA's published figures. These are public-domain U.S. government data.
| Year | SRP (c/kWh) |
|---|---|
| 2015 | 11.59 |
| 2016 | 11.61 |
| 2017 | 11.59 |
| 2018 | 11.68 |
| 2019 | 11.56 |
| 2020 | 11.45 |
| 2021 | 11.5 |
| 2022 | 11.88 |
| 2023 | 12.47 |
| 2024 | 13.46 |
| 2025 | 13.98 |
Sources: EIA Form 861 annual detailed data files (Sales_Ult_Cust, 2015-2024) - source of the residential price series · EIA Table 6 - 2024 Utility Bundled Retail Sales, Residential (2024 sanity check, SRP ~13.46 c/kWh) · EIA Electric Sales, Revenue, and Average Price (Table 6 hub) · SRP E-23 Basic Price Plan ratebook (FY26, effective Nov 2025) · SRP E-23 ratebook (effective May 2019, incl. Nov 2023 fuel adjustment) · SRP E-13 Time-of-Use Export Price Plan ratebook (FY26, effective Nov 2025; 3.45 c/kWh export credit, no demand charge) · SRP Time-of-Use Export Price Plan for solar customers · SRP Solar Customer Generation / legacy demand plans (E-15 / E-27) · About SRP and service area (customer counts, central Arizona service territory)
What rising SRP rates could cost you
SRP rates have risen about 1.9% per year. Enter your bill to see what that pace of increase could compound to over time, and what you have likely already absorbed. This is an estimate, not a guarantee.
Estimate only. Projects your current bill forward at SRP's historical average rate increase (1.9% per year, from EIA data); it assumes your usage stays the same except for any add-ons you select. Actual rates depend on your usage, rate plan, and the utility's future filings, and are not guaranteed. This is general information, not financial advice.
FAQ
Does SRP charge demand fees for solar?
The legacy E-15 and E-27 solar plans add demand charges of about $9.16 per kW of on peak demand. Those plans are closing to new enrollment and sunset for all solar customers by November 2029. The newest E-13 Time of Use Export plan has no demand charge.
What does SRP pay for exported solar?
A flat 3.45 cents per kWh on the Time of Use Export plan effective November 2025, regardless of time of day, well below the roughly 11 to 14 cents you pay to buy power.
Why are SRP's solar rules different from APS's?
SRP is a self governed public power district outside Arizona Corporation Commission jurisdiction, so it sets its own solar rules through its elected board rather than following the ACC's net billing framework that governs APS and TEP.
Is solar worth it on SRP?
The case rests almost entirely on self-consumption: offsetting SRP's time of use prices, especially on peak, while treating the 3.45 cent export credit as a minor bonus. Batteries fit that design well. With cheap grid power, oversized systems are hard to justify, so get site-specific numbers.