APS Frequently Asked Questions

What is the APS Storage Rewards pilot?

The APS Storage Rewards pilot is a resource to help support a reliable, affordable and clean energy future. During periods of high demand an event may be called and your battery manufacturer will signal your battery system to discharge stored energy back to the power grid.

How will I know if I’m eligible to enroll?

To participate in the APS Storage Rewards pilot, you must be an APS residential customer. You must also use a battery storage system operated by a supported manufacturer, and your battery must perform in accordance with your utility interconnection agreement (IA).
Your battery interconnection application must receive Permission to Operate (PTO) from APS prior to enrolling in the program.
Please see the list of supported battery manufacturers and models below. You can also reach out to your installer to see if they install one of the supported inverters.

Manufacturer	Eligible Inverters	Eligible Batteries
Canadian Solar	Canadian Solar EP Cube (battery & inverter) [Inverter+Battery]: Hybrid NA510G, Hybrid NA613G, Hybrid NA 716G, Hybrid NA720G Battery sizes: 9.9kwh,13.3kwh,16.6kwh,19.9kwh (battery & inverter)	Canadian Solar EP Cube (battery & inverter) [Inverter+Battery]: Hybrid NA510G, Hybrid NA613G, Hybrid NA 716G, Hybrid NA720G Battery sizes: 9.9kwh,13.3kwh,16.6kwh,19.9kwh (battery & inverter)
Emporia (SolaX Xpower)	Battery Sizes: 10kWh, 15kWh, 20kWh, 30kWh, 40kWh, 45kWh, 60kWh, 80kWh	Battery Sizes: 10kWh, 15kWh, 20kWh, 30kWh, 40kWh, 45kWh, 60kWh, 80kWh
Fortress Power	eSpire Mini, eSpire 233, eSpire 280 (include battery and inverter) Envy Inverter	eSpire Mini, eSpire 233, eSpire 280 (include battery and inverter) LFP-10 Max, eVault Max 18.5kWh, eFlex 5.4 (need to be paired with Envy interter)
Franklin WH	Franklin Home Power aPower X (battery & inverter)	Franklin Home Power aPower X (battery & inverter)
Generac	Model 700 Series Model 11400 Series	Panasonic (DCB)* Generac (EX)
SolarEdge	SE3000H-US SE3800H-US SE3800A-US SE6000H-US SE7600H-US SE7600A-US BAT-10K1P with Inverters: SE3000H-US / SE3800H-US / SE6000H-US / SE7600H-US / SE10000H-US / SE11400H-US	LG Chem RESU10H Tesla Powerwall 2* Tesla Powerwall+*
Qcells	The Q.HOME CORE H3S The Q.HOME CORE H7S	The Q.HOME CORE H3S The Q.HOME CORE H7S
Tesla	All solar inverters	Tesla Powerwall 2* Tesla Powerwall+*

*Tesla Powerwall has internal inverter

Please contact your battery vendor or installer for more information on which inverter and battery models are best suited for your system.

Where can I find the Terms and Conditions for the pilot?

Provider	Terms and Conditions
Canadian Solar	Terms and Conditions
Emporia	Terms and Conditions
Fortress Power	Terms and Conditions
FranklinWH	Terms and Conditions
Generac	Terms and Conditions
SolarEdge	Terms and Conditions
Tesla	Terms and Conditions

What is the compensation amount for participating?

The APS Storage Rewards pilot uses a pay-for-performance structure. By enrolling and participating in the pilot program, you can earn $110 per average kW you contribute from your battery to APS throughout the summer season.

How much can I expect to earn?

Your payment will be based on the average power contribution, in kilowatts (kW), of your battery system throughout all event hours.
Battery system performance will vary based on size, configuration, internet connectivity and other factors. Please contact your battery storage system manufacturer for more information about your battery's expected performance.
For example, a customer who has an average contribution of 2 kW across all events would earn $220 for the season. This is calculated by multiplying the average contribution (2 kW) by the compensation rate of $110 for each kW. So, 2 kW times $110 equals $220.
The example provided below is for illustrative purposes only. The number of events, including the duration of each, will vary based on grid needs. For questions regarding compensation, please email APSStorageRewards@energyhub.com.

Event 1	Event 2	Total kW discharged	Average kW discharged	APS Storage Rewards
3kW discharged	2kW discharged	5kW	2.5kW	2.5 x $110 = $275

How will I be notified of an event?

You’ll be notified of the date and time of the event beforehand by email, text or other form of communication.

How many events can I expect?

The number of events will vary depending on APS’s grid needs, but no more than 60 events will be called each season, May 1 to October 31. Events may take place on weekdays, weekends and holidays from 4 p.m. to 10 p.m.

How long will each event last?

Events will range from one hour to four hours.

When and how can I expect to receive my compensation for participating?

Once your battery’s performance data has been validated, compensation payments for performance will be processed as a bill credit within one to two APS billing cycles after the end of the season.

How can I ensure that I’ll still have backup energy if I need it?

You can always opt out of events. In addition, some battery vendors can help you configure your system to limit how much your system will discharge during events. Please note, however, that these actions will affect how much your system can earn.

Can I participate if I have a battery storage system only (without solar)?

Customers who do not have solar but have an eligible battery system that charges from the power grid may participate in the APS Storage Rewards pilot.

Do I need to maintain an internet connection to my energy storage system?

Yes. This ensures your device can be communicated to.
During events, if we cannot communicate with your energy storage system, or if your energy storage system cannot discharge when needed (due to a maintenance issue), the amount earned will be affected.

Are leased systems eligible to participate?

Leased devices must be compatible with the pilot design and are subject to your lessor contract for any limitations.

How do I unenroll from the program?

Please contact EnergyHub at APSStorageRewards@energyhub.com to unenroll from the program.