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Home battery · Enphase · CEC approved May 2023
A 5 kWh home battery with backup power.
The Enphase IQ Battery 5P is a compact, modular AC-coupled battery with a 15-year warranty. Each unit contains 4 embedded microinverters. Average $1,465/kWh installed.
The numbers that matter for a home. The full datasheet is below.
Usable capacity
How much energy it stores for you to use
Continuous power
How much it can run at once — the essentials, not the whole house
Round-trip efficiency
How much of the energy you store comes back out
Depth of discharge
You can use the whole battery, not just part of it
Warranty
How long the manufacturer stands behind it
Battery chemistry
Lithium iron phosphate — the long-cycle-life type
Seven measures, each scored against every CEC-listed battery. The short bars are where it loses points. How it’s calculated
Depth of discharge
100% DOD - Full capacity is usable
15/15
Round-trip efficiency
96% efficiency - Excellent
13/15
Temperature performance
Max: 55°C | DOD@45°C: 100% | Eff@45°C: 94% | Active air cooled - Excellent heat tolerance
13/15
Degradation rate
1.5%/year degradation - Excellent capacity retention
9/10
Warranty throughput
30.0 MWh | 15yr | 70% retention - Top-tier warranty terms
18/20
Price per kWh
$1900/kWh (Premium) - Below tier expectations
4/10
Cycle life
No published cycle rating — scored at a conservative default
3/15
Works out to $0.33 per kWh over an estimated 28,800 kWh of delivered energy.
Every figure on file for the Enphase IQ Battery 5P, by section.
| Specification | Value |
|---|---|
| Technical specifications | |
| Dimensions | 424 x 374 x 182 mm |
| Weight | 41 kg |
| Efficiency | 96% |
| Operating temperature | -15°C to 55°C |
| Warranty | 15 years |
| Cycles | 4000+ |
From the desk's notes on this model. Confirm against the manufacturer datasheet before relying on a value for a quote or installation.
15
years
30
MWh
55°
celsius
Level 1
Single Circuit
Enphase Australia
US company with established Australian subsidiary.
Rated to 55°C, which covers Perth's hottest days.
Has active-air thermal management
This battery is AC-coupled. To get the WA rebate, the interest-free loan, VPP payments or DEBS export credits, it needs a gateway device from Synergy's approved list (for example SMA or Redback), or an inverter and battery from the same brand (Sungrow or Fronius). Without one, exports are capped at 1.5kW.
Some third-party gateways struggle to pass compliance testing, and adding anything to an AC-coupled system later means the whole system has to be re-checked. For many homes, switching to a hybrid (DC-coupled) inverter is the simpler path. AC vs DC coupling
CSIP-AUS compliant
Inverter must be CSIP-AUS compliant under the current WA framework.
Synergy SSL approved inverter
Needs pairing with a Synergy SSL approved inverter.
VPP activation ready
VPP activation requires a Synergy SSL approved inverter.
WA Battery Scheme rebate
Requires Battery Rewards participation under the current WA framework.
Synergy Battery Rewards
Requires a CSIP-AUS compliant system and reliable internet.
Interest-free loan
Not eligible for interest-free financing.
Under current WA rules, new rebate applications require VPP enrolment and CSIP-AUS compliance. How the scheme works · Estimate VPP earnings
17 years in the Australian market
Enphase Enlighten provides granular monitoring down to individual microinverters. Track solar production, battery charge levels, and home consumption in real-time with detailed historical analytics and proactive system health alerts.
$9,500
Typical installed price, before rebates
The WA rebate is $0 here: AC-coupled batteries need an approved gateway under the current WA rules. STCs assume about $39.9 a certificate. Estimates only; your quote will vary.
Usable capacity, for one battery system
This battery is below the smaller-home band. The WA rebate caps at 10 kWh, but that is a rebate limit, not a sizing guide.
Estimated federal rebate (STCs) for this 5 kWh battery
The Enphase IQ Battery 5P against the closest-sized batteries from other brands.
| Specification | Enphase IQ Battery 5PEnphase | Alpha ESS SMILE-M-BAT-5PAlpha ESS | Anker X1-B5-HAnker |
|---|---|---|---|
| Usable capacity? | 5 kWh | 5 kWh | 5 kWh |
| Continuous power? | 3.84 kW | Not verified | Not verified |
| Peak power? | 7.68 kW | Not verified | Not verified |
| Round-trip efficiency? | 96%best value | 92% | 92% |
| Warranty | 15 years | Not verified | Not verified |
| Chemistry | LFP | LFP | LFP |
Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.
Other CEC-approved products from Enphase available in Australia.
Get a quote from an installer from our network that covers your area. You choose whether to act on it. No obligation.
This model is one entry in the desk's index of solar batteries for Perth — every CEC-approved battery on one comparable dataset.
Product specifications, pricing, and availability are subject to change without notice. We make no warranties regarding product performance, longevity, or suitability for your specific needs.
Always verify specifications with the manufacturer and installer before purchase. Warranty terms are set by manufacturers and may have conditions not disclosed here. Battery performance degrades over time.