Usable energy
Battery capacity in kWh determines stored energy. Available energy changes with the state of charge, reserve setting, losses and operating conditions.
Home energy storage
Enphase battery systems
AC-coupled storage with model-specific power and controls.
- 5 kWhUsable energy per battery
- AC-coupledSystem architecture
- SKU-specificPhase and output
IQ Battery 5P family
Energy, power and backup are different decisions.
IQ Battery 5P provides 5 kWh of usable energy per battery. The original single-phase model and the newer FlexPhase version differ in output and phase configuration. A complete design needs the correct battery SKU, gateway and backup-control equipment; the family name alone does not establish backup coverage.
Output power
Continuous output in kW limits the loads a system can supply together. Motor starting and phase arrangements also affect the design.
Designed backup
A battery does not automatically back up every circuit. Compatible controls, safe grid isolation and a specified load list are part of a backup installation.
Product details
Know what is being specified.
IQ Battery 5P family. For a product family, the exact model and configuration are confirmed in your quote. Figures below apply only to the model or configuration identified.
| Family | IQ Battery 5P | Usable energy | 5 kWh per battery |
|---|---|---|---|
| Phase and AC output | Depend on SKU and configuration | Backup | Compatible system controller and circuit design required |
Manufacturer references checked 21 September 2026:
Warranty and support
Check the coverage for your model.
Warranty terms depend on the exact model, installation and use. We include the applicable Australian warranty documents with the quote.
The equipment
Check which components are covered, the warranty term and any registration, usage or servicing conditions.
The installation
Your quote should identify the installation work, commissioning, handover and support contacts.
The documents
Keep model and serial numbers, the invoice and the applicable Australian warranty. Manufacturer warranties sit alongside Australian Consumer Law rights.
Planning the system
Model the battery against your usage.
Storage value depends on when your home imports and exports electricity, the tariff and the proposed operating settings. There is no single savings or runtime figure for every household.
Load profile
Use interval-meter data where available to understand evening demand and daytime solar surplus.
Tariff and controls
Account for import prices, export payments, charge scheduling and any energy-plan conditions.
Backup reserve
Keeping energy in reserve changes how much the battery can use for everyday bill savings.
Explore your wider home energy plan
Compare the options
Start with the product configuration.
These pages cover different models and product families. Compare exact quote specifications and installation scope before comparing prices.
| Brand or product | Range covered | What to confirm |
|---|---|---|
| Sigenergy | SigenStor system | Specify usable storage and inverter output separately. |
| Tesla Powerwall 3 | Powerwall 3 — Australian specification | Confirm your approved AC output and which circuits will operate during an outage. |
| GoodWe ESA | ESA modular storage range | Check the controller and battery module model numbers as a matched combination. |
| SolarEdge | Home Battery 400V example | Confirm whether the quote uses the 400V or three-phase battery architecture. |
| Enphase | IQ Battery 5P family | Identify the original 5P or FlexPhase SKU in the quote. |
| Anker SOLIX | X1 home energy storage range | Confirm whether the design is hybrid or AC-coupled and single- or three-phase. |
Before choosing Enphase
- Identify the original 5P or FlexPhase SKU in the quote.
- Match the system controller, existing solar and backup circuits.
Ask for a complete quote
- Exact model numbers and included components.
- Installation scope, operating assumptions and any exclusions.
- Applicable warranty documents and an itemised rebate calculation where eligible.
From consultation to installation
Designed around your home.
We assess the site and your goals, confirm a suitable configuration, and explain what is included before installation.
Assess
Review your usage, existing equipment, site conditions and priorities.
Specify
Confirm model numbers, compatibility, installation work and the complete quote.
Install and hand over
Complete the agreed installation and commissioning, then explain the controls and support pathway.
Available times
Talk to us about Enphase.
Pick a time that works. We’ll assess whether Enphase suits your home and confirm the model, installation scope and any applicable incentives.
