Description
DEYE AI1 Stackable Battery System – Single Phase
A compact, modular single-phase solar and battery system for Australian homes, available with 5kW, 6kW, 8kW or 10kW DEYE AI1 hybrid inverter options.
The DEYE AI1 combines a low-voltage hybrid inverter with a floor-mounted AI-W5.1-B LiFePO4 battery stack. Internal blind-mate connections keep the stack neat, while the modular design lets an installer size this configured system from 10.24kWh to 51.20kWh nominal capacity across one or two stacks.
The preselected installed package is $6,390.50 including GST after the estimated federal battery rebate: a 5kW AI-W5.1-5P1-AU-B inverter, five AI-W5.1-B modules (25.60kWh nominal and CEC-listed usable capacity), and the AI-W5.1-PDU3-B power distribution unit and floor base. Choose a 5kW, 6kW, 8kW or 10kW inverter and two to ten batteries in the configurator to update the package total.
The first stack includes a PDU3 and base and holds up to five batteries in this package. Selecting six to ten batteries automatically adds a PDU1 and a second base, with the additional batteries in the second stack. At ten batteries, each stack has five modules: 51.20kWh nominal and CEC-listed usable capacity in total.
Standard installation includes mounting near a suitable existing switchboard, standard electrical connection, commissioning and app setup. The final written quote confirms the battery location, switchboard, solar compatibility, network limits, backup scope and rebate eligibility before work starts.
The included rebate estimate uses the applicable 2026 tiered STC factor, $38 per STC and 5.12kWh CEC-listed usable capacity per battery module, capped at 50kWh for the rebate. Prices assume an eligible installation completed by 31 December 2026 and assignment of the STCs. For the preselected five-module system, the allowance is $5,396. Later installation dates, eligibility or STC value changes require an updated quote. The separate rebate calculator is an estimate tool; editing it does not change the configured selling price.
Why choose the DEYE AI1?
- One coordinated platform: DEYE inverter, PDU and AI-W5.1-B battery modules are designed to work together.
- Scalable storage: two to ten 5.12kWh modules provide 10.24kWh to 51.20kWh nominal energy across one or two stacks.
- Fast backup response: the series brochure specifies a 4ms switching time when correctly designed and commissioned.
- Smart energy control: supports self-consumption, time-of-use operation, peak shaving, smart load, generator input and AC coupling.
- Indoor or sheltered outdoor installation: IP65 after stacking. The manuals still require protection from direct sun, direct rain and unsuitable environments.
- Long-life LFP battery: 90% recommended depth of discharge, at least 6,000 cycles under the stated test conditions, and a 10-year product warranty subject to DEYE terms.
Single-phase inverter choices
| Output | Exact AU model | Battery design note |
|---|---|---|
| 5kW | AI-W5.1-5P1-AU-B | Choose from two to ten 5.12kWh battery modules, subject to system design and the required charge/discharge power. |
| 6kW | AI-W5.1-6P1-AU-B | Choose from two to ten 5.12kWh battery modules, subject to system design and the required charge/discharge power. |
| 8kW | AI-W5.1-8P1-AU-B | Choose from two to ten 5.12kWh battery modules, subject to system design and the required charge/discharge power. |
| 10kW | AI-W5.1-10P1-AU-B | Supplier-listed AU model; current approvals and stack design must be confirmed before quoting. |
Stack capacity options
Each AI-W5.1-B module adds 5.12kWh nominal and CEC-listed usable capacity. The rebate calculation counts at most 50kWh usable capacity. This package uses up to five modules per stack; the second PDU and base are added automatically above five batteries.
| Total modules | Nominal capacity | CEC-listed usable capacity | Stack hardware included |
|---|---|---|---|
| 2 | 10.24kWh | 10.24kWh | PDU3 + base |
| 3 | 15.36kWh | 15.36kWh | PDU3 + base |
| 4 | 20.48kWh | 20.48kWh | PDU3 + base |
| 5 | 25.60kWh | 25.60kWh | PDU3 + base |
| 6 | 30.72kWh | 30.72kWh | PDU3 + base; PDU1 + second base |
| 7 | 35.84kWh | 35.84kWh | PDU3 + base; PDU1 + second base |
| 8 | 40.96kWh | 40.96kWh | PDU3 + base; PDU1 + second base |
| 9 | 46.08kWh | 46.08kWh | PDU3 + base; PDU1 + second base |
| 10 | 51.20kWh | 51.20kWh | PDU3 + base; PDU1 + second base |
What is included in a configured system?
- 1 x selected DEYE AI1 AU hybrid inverter
- 1 x AI-W5.1-PDU3-B and floor base for the first stack; an additional AI-W5.1-PDU1-B and floor base for six to ten batteries
- 2 to 10 x AI-W5.1-B 5.12kWh LiFePO4 battery modules, as selected
- Required interconnects supplied with the selected DEYE components
- Suitable standard installation, commissioning and app setup
Not automatically included: solar panels, site-specific switchboard work, backup circuits, gateway/meter options, freight, non-standard installation work, network applications and other balance-of-system items unless shown in your written quote.
Installation and approvals
Battery quantity, usable backup power, PV string design, phase configuration, generator integration, clearances and protection must be confirmed by a suitably qualified designer and installer. CEC and STC eligibility is subject to approval.
The battery stack is heavy: each battery module is 53kg.
Watch the DEYE AI1 system
Official DEYE downloads
- DEYE AI-W5.1-B ESS Series brochure — Australia
- DEYE AI-WX-B PDU1/PDU3 user manual — Australia, V03
- DEYE official AI-W5.1-B ESS product page
Technical specifications
| Product family | DEYE AI-W5.1-B ESS / AI1 |
|---|---|
| Phase | Single phase |
| Inverter options | 5kW, 6kW, 8kW, 10kW |
| Battery module | AI-W5.1-B |
| Battery chemistry | LiFePO4 |
| Nominal energy per module | 5.12kWh |
| Usable energy per module | 5.12kWh CEC-listed usable capacity; operating limits are confirmed during system design |
| Battery voltage | 51.2V nominal; 43.2-57.6V operating range (AU three-phase manual) |
| Configured system scalability | 2-10 modules total; up to five per stack in this package; 10.24-51.20kWh nominal |
| Battery module size | 720 x 255 x 300mm (W x D x H), excluding terminals |
| Battery module weight | 53kg |
| Enclosure rating | IP65 after stacking |
| Maximum efficiency | 97.6% |
| Communications | CAN 2.0 and RS485; monitoring options vary by inverter and supplied logger |
| Installation | Floor-mounted battery stack; professional installation required |
| Warranty | 10 years, conditions apply |
