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None (not in an ISO/RTO wholesale market)

Virtual power plants in Arizona

Arizona's utilities operate outside the organized ISO/RTO markets. Both large utilities in the Phoenix area run battery VPP pilots that pay per average kW your battery delivers: APS Storage Rewards (summer season) and SRP Battery Partner (summer and winter).

2 programs: 2 pilot. Checked October 2, 2026.

Own your battery, utility payspilot

APS Storage Rewards

APS discharges enrolled batteries on up to 60 'conservation days' a season, usually between 4 and 10 PM, and pays a bill credit based on average performance.

Run by
Arizona Public Service (APS)
Where
APS
Devices
home batteries: Emporia, Enphase IQ, Fortress Power, FranklinWH aPower X, SolarEdge (incl. LG), Tesla Powerwall 2/3/+
Who can join
APS residential customers with a supported battery and compatible inverter.
What it pays
$110 per average kW provided over the May 1-October 31 season, credited after the season. No upfront incentive.

Note: Five-year pilot.

Sources

Last checked 2026-10-02

Own your battery, utility payspilot

SRP Battery Partner

SRP discharges enrolled batteries during grid conservation events, always keeping at least a 20% reserve, and pays credits after the summer and winter seasons. Customers can opt out of individual events.

Run by
Salt River Project (SRP)
Where
SRP
Devices
home batteries: Enphase, FranklinWH, Tesla, SolarEdge
Who can join
SRP residential customers with a supported battery, enrolled through GreaterGrid.
What it pays
$55 per average kW, paid twice a year as bill credits (actual amounts vary).

Note: Five-year pilot through April 30, 2030, capped at 5,000 customers.

Sources

Last checked 2026-10-02

Program terms change. Always confirm the current terms with the program before you enroll. Spot something out of date?

Questions welcome, no obligation

Questions about VPPs in Arizona?

Tell us where you live and what you're curious about. We'll point you to the programs that fit, and connect you with a program partner only if you choose one below.

  • We answer questions about any program on this site.
  • In Texas, Illinois and California, our partner VirtuGrid can check whether your home fits the SOLRITE home battery program.
  • You'll always see who will contact you before you send.

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