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Arizona utilities compared
| Utility | Export policy | Export credit | Avg. residential price | Monthly basic charge |
|---|---|---|---|---|
| APS | Rate Rider RCP (Resource Comparison Proxy export rate) | 5.55¢ per kWh, locked 10 years[1] | 16.45¢ per kWh[2] | $13.93[3] |
| SRP | Per Exported kWh Credit on E-16 (Manage Demand 5-10 p.m. and Save) and E-28 (Conserve 6-9 p.m. and Save) | 1.87¢ per kWh[4] | 13.46¢ per kWh[2] | $30.00[5] |
| TEP | Rider R-14 Resource Comparison Proxy Export Rate (RCP-PRS) | 4.62¢ per kWh, locked 10 years[6] | 15.63¢ per kWh[2] | $15.00[7] |
Average prices are EIA figures for each utility's residential customers; the basic charge is from the utility's residential tariff.
Arizona Public Service
Rate Rider RCP (Resource Comparison Proxy export rate). APS meters exported solar energy instantaneously and credits it on the monthly bill at the RCP rate in effect when the customer submitted the interconnection application, provided installation and AHJ approval are completed within 180 days (270 if delayed by APS or a third party). The rate is locked for 10 years from interconnection, then floats with the current annual RCP. Credits roll forward monthly; after the December bill, balances over $25 are paid by check.[1]
Charges for solar customers: A residential time-of-use plan: Time-of-Use 4pm-7pm Weekdays (TOU-E) or Time-of-Use 4pm-7pm with Demand Charge (R-3). Fixed-energy-charge plan R-1 is not available to customers with on-site generation; R-2 (Saver Choice Plus) is frozen to new customers since Dec 1, 2021.
- Basic service charge: $0.458 per day (about $13.93/month) on Time-of-Use 4pm-7pm Weekdays (TOU-E), the R-3 demand plan, and R-1 medium/large tiers; R-1 small tier is $0.362/day. Rates effective March 8, 2024 (Decision No. 79293).[3]
- Plans available to solar customers: Solar customers choose Time-of-Use 4pm-7pm Weekdays or Time-of-Use 4pm-7pm Weekdays with Demand Charge; the R-1 fixed-energy-charge plan is limited to customers without on-site generation.[8]
- Grid Access Charge for solar: $0.242 per kW-dc of solar nameplate capacity added to the monthly bill on TOU-E ($0.215/kW-dc on R-3).[3]
- Grid Access Charge litigation: On June 16, 2026 the Arizona Court of Appeals found the GAC was imposed without adequate notice; it denied APS/ACC reconsideration on Oct 29, 2026 and APS plans to petition the Arizona Supreme Court. The GAC remains in the current tariffs.[9]
- Pending rate case: APS's 2025 rate case (filed June 13, 2025, requesting a 13.99% net base rate increase) is pending; hearing ended July 7, 2026 and APS expects a decision before the end of 2026. Rates and solar charges may change.[9]
- Export credit payout: Unused RCP export credits roll forward; after the December bill, balances over $25 are paid by check.[1]
APS tariffs · APS solar page · Serves Phoenix, Flagstaff
Salt River Project
Per Exported kWh Credit on E-16 (Manage Demand 5-10 p.m. and Save) and E-28 (Conserve 6-9 p.m. and Save). On SRP's newer solar-eligible plans, exports are metered instantaneously and credited at the end of each billing cycle at a market-based Export Rate. The Export Rate is recalculated every May billing cycle from a three-year average of hourly market (CAISO ELAP) prices weighted by when solar customers export. No lock-in period is stated in the price plan; the rate is recalculated annually and is subject to change.[4]
Charges for solar customers: E-16 Manage Demand 5-10 p.m. and Save (has a monthly demand charge) or E-28 Conserve 6-9 p.m. and Save; both open to solar and non-solar customers since the November 2025 billing cycle.
- Monthly service charge tiers: Since the November 2025 billing cycle, all residential price plans (solar and non-solar) use a tiered MSC: $20 multifamily, $30 typical single-family, $40 for service over 225 amps.[5]
- Former solar-specific service charge replaced: Before November 2025, solar customers paid an MSC of $32.44 or $45.44 versus $20 for most others; the tiered MSC replaced this.[5]
- Solar plan freezes: E-13, E-14, E-15 and E-27 solar plans remain open until the November 2029 billing cycle; new E-16 and E-28 plans (solar and non-solar) started with the November 2025 billing cycle.[5]
- Export rate methodology: The E-16/E-28 Export Rate is recalculated each May from a three-year simple average of hourly market prices weighted by solar customers' hourly exports, adjusted for losses.[10]
- Residential solar price impact (Nov 2025): SRP's November 2025 price change averaged +5.5% total for residential solar customers vs +3.4% for residential overall.[5]
- E-13 Time-of-Use Export and E-14 Electric Vehicle Export price plans: 3.45 cents/kWh fixed (plans close as of the November 2029 billing cycle). No demand charge; customers pay for energy drawn from the grid, and all exported energy accumulated in the billing cycle is credited at a fixed 3.45 cents/kWh. These plans remain open to solar customers until they are eliminated as of the November 2029 billing cycle.[11]
- E-27 Customer Generation and E-15 Average Demand price plans (billing-cycle net metering): Billing-cycle netting by TOU period; net excess credited at the plan's retail energy price (plans close Nov 2029). On E-27 and E-15, kWh exported to SRP are subtracted from kWh delivered in the same billing cycle, tracked by time-of-use period. A net positive is billed; a net negative is credited at the plan's retail per-kWh price. Both plans carry demand charges and will be eliminated as of the November 2029 billing cycle, with E-27 customers moved to E-16.[10]
SRP tariffs · SRP solar page · Serves Phoenix
Tucson Electric Power
Rider R-14 Resource Comparison Proxy Export Rate (RCP-PRS). TEP meters exported energy instantaneously and gives a monthly bill credit at the RCP rate in effect when the customer submitted the interconnection application (before October 1). That rate is locked for 10 years from interconnection, then follows the current annual RCP. Excess credits carry forward; each year on the October bill TEP pays out remaining RCP credits over $10.[6]
Charges for solar customers: Must take service on one of TEP's residential (or small general service) time-of-use rate tariffs, e.g. Time-of-Use (TRREST), Demand TOU.
- Basic service charge: $15.00/month single-phase on the Basic plan (TRRES); $12.00/month on the residential Time-of-Use plan (TRREST) that solar RCP customers typically use. Effective Sept 1, 2023 (Decision No. 79065).[7]
- TOU plan required for RCP: Customers on the RCP export rider must be on a residential time-of-use rate.[12]
- Annual payout of export credits: Remaining RCP export credits over $10 are paid out each year on the October bill (September usage).[12]
- Pending rate case: TEP's general rate case is under ACC review; TEP says the administrative law judge's recommended rates would raise average residential bills about 11% and could take effect before the end of 2026.[13]
- System size limit for RCP: DG system capacity must be no more than 125% of the customer's total connected load (or below service drop capacity if no load data).[12]
TEP tariffs · TEP solar page · Serves Tucson
State rules that apply
- HOAs cannot ban solar (A.R.S. 33-1816): Planned-community associations cannot prohibit installing or using a solar energy device; they may adopt reasonable placement rules only if those rules don't prevent installation, impair function, or adversely affect cost or efficiency. Courts award attorney fees to a party that substantially prevails against the board.[14]
- Deed restrictions banning solar are void (A.R.S. 33-439): Any deed covenant, restriction or condition that effectively prohibits a solar energy device is void and unenforceable (instruments entered into before April 17, 1980 are excepted).[15]
- End of retail net metering for APS/TEP (ACC Decision 75859): ACC Decision No. 75859 (January 3, 2017), from the ACC's generic value and cost of distributed generation docket, approved the Resource Comparison Proxy (RCP) export rate that replaced retail net metering for new APS rooftop solar customers (APS tranches began September 2017). TEP's RCP applies to customers requesting interconnection since September 20, 2018.[16]
- RCP 10% annual cap and 10-year lock confirmed: ACC rules cap annual RCP reductions at 10% and lock each customer's rate for 10 years. An ACC docket opened Oct 11, 2023 to revisit both was administratively closed on Oct 6, 2025 after Staff found the RCP working as intended.[9]
- TEP RCP start date: TEP's RCP applies to residential and small commercial customers who requested interconnection since September 20, 2018; earlier customers may remain on grandfathered net metering (Rider R-4).[6]
- Solar permit fee and engineering-stamp limits (A.R.S. 9-468, 11-323): Cities and counties cannot charge solar permit fees above the actual cost of issuing the permit, must give an itemized cost list on request, cannot require a PE stamp unless deemed necessary (with written explanation), and may use an online automated permitting platform such as SolarAPP+.[17]
- 3-business-day cancellation right (A.R.S. 44-1763): Solar sale or lease agreements must let the buyer or lessee cancel for at least three business days after signing and before installation, and must include bold disclosures that utility rates and tax incentives can change.[18]
- Lease payments wait for permission to operate: Recurring solar lease payments cannot start until the utility grants permission to operate and the system is energized and interconnected.[18]
- Minimum solar warranty (A.R.S. 44-1762): Collectors, heat exchangers, storage units and their installation must carry at least a 2-year warranty (or an energy production guarantee); other components at least 1 year. Roof installers must evaluate the roof and are responsible for roof damage caused by the installation.[19]
What it means for sizing and batteries
When exports earn much less than retail, each kWh you use at home as it is produced is worth more than one you export. Size to your daytime and evening use, shift loads (laundry, dishwasher, EV charging) to sunny hours or the plan's off-peak window, and price a battery against the gap between the retail and export rates.
The calculator uses each utility's export rate. City pages: Flagstaff, Phoenix, Tucson.
FAQ
Frequently asked questions
Does Arizona have net metering?
Retail net metering ended for new APS and TEP customers in 2017. Both now credit exports at the Resource Comparison Proxy (RCP) rate, which falls by up to 10% a year and is locked for 10 years from your application. SRP, which serves much of the Phoenix area, sets its own export rates and is not regulated by the Arizona Corporation Commission.
What does APS pay for exported solar?
Under Rate Rider RCP (Resource Comparison Proxy export rate), APS credits exported energy at 5.55¢ per kWh[1].
What does SRP pay for exported solar?
Under Per Exported kWh Credit on E-16 (Manage Demand 5-10 p.m. and Save) and E-28 (Conserve 6-9 p.m. and Save), SRP credits exported energy at 1.87¢ per kWh[4].
What does TEP pay for exported solar?
Under Rider R-14 Resource Comparison Proxy Export Rate (RCP-PRS), TEP credits exported energy at 4.62¢ per kWh[6].
sources
[ 19 ]Every number on this page links to one of these sources. Dates show when we last checked each one.
- APS: Rate Rider RCP (Resource Comparison Proxy export rate)aps.com · checked Nov 5, 2026
- EIA Electric Sales, Revenue, and Average Price 2024, Table 6: Utility bundled retail sales, residentialeia.gov · checked Nov 5, 2026
- APS residential tariffaps.com · checked Nov 5, 2026
- SRP: Per Exported kWh Credit on E-16 (Manage Demand 5-10 p.m. and Save) and E-28 (Conserve 6-9 p.m. and Save)srpnet.com · checked Nov 5, 2026
- SRP residential tariffsrpnet.com · checked Nov 5, 2026
- TEP: Rider R-14 Resource Comparison Proxy Export Rate (RCP-PRS)tep.com · checked Nov 5, 2026
- TEP residential tariffdocs.tep.com · checked Nov 5, 2026
- APS: Plans available to solar customersaps.com · checked Nov 5, 2026
- APS: Grid Access Charge litigationsec.gov · checked Nov 5, 2026
- SRP: Export rate methodologysrpnet.com · checked Nov 5, 2026
- E-13 Time-of-Use Export and E-14 Electric Vehicle Export price planssrpnet.com · checked Nov 5, 2026
- TEP: TOU plan required for RCPdocs.tep.com · checked Nov 5, 2026
- TEP: Pending rate casetep.com · checked Nov 5, 2026
- HOAs cannot ban solar (A.R.S. 33-1816)azleg.gov · checked Nov 5, 2026
- Deed restrictions banning solar are void (A.R.S. 33-439)azleg.gov · checked Nov 5, 2026
- End of retail net metering for APS/TEP (ACC Decision 75859)aps.com · checked Nov 5, 2026
- Solar permit fee and engineering-stamp limits (A.R.S. 9-468, 11-323)azleg.gov · checked Nov 5, 2026
- 3-business-day cancellation right (A.R.S. 44-1763)azleg.gov · checked Nov 5, 2026
- Minimum solar warranty (A.R.S. 44-1762)azleg.gov · checked Nov 5, 2026
Tariffs last re-checked November 5, 2026.