13.3kW
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Most Popular Large-Home Package

13.3kW Solar & Battery System Sydney — From $12,499

SimpliSolar's most popular residential system. The 13.3kW package bundles a 42kWh battery and delivers near-zero quarterly electricity bills for large Sydney homes, EV owners, and high-usage families.

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$12,499
From, installed
42kWh
Battery included
~$2,900
Annual savings
25 yr
Panel warranty
32–34
Solar panels
415W per panel
52–58
kWh/day generation
Peak summer output in Sydney
$4,200
STC rebate included
Applied directly to your quote
9.8 t
CO₂ offset per year
Equivalent to planting 163 trees

What's Included

Everything in Your 13.3kW Package

A 13.3kW solar and battery system is a full-scale residential installation. We handle design, approvals, installation, and grid connection in a single coordinated process — typically completed in one day.

  • 32 × 415W Tier 1 monocrystalline panels (Canadian Solar, JA Solar, or REC)
  • 10kW hybrid inverter (SolarEdge, Fronius, or Sungrow)
  • 42kWh battery, professionally installed and configured
  • All mounting hardware, railing, and roof brackets
  • AC/DC cabling, conduit, and isolators
  • Bidirectional smart meter (where required)
  • Grid connection — Ausgrid, Endeavour Energy, or Essential Energy
  • Inverter and battery monitoring app setup
  • Certificate of Electrical Safety (CES)
  • 10-year workmanship warranty on all labour
  • Federal STC rebate deducted from your invoice (~$4,200 saving)
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13.3kW solar and battery system installed on a large Sydney home
Most Popular Package in Sydney

Financial Returns

How Much Will a 13.3kW System Save You?

A 13.3kW system is sized for households that use 35–60 kWh per day. The bundled 42kWh battery captures excess midday generation so more of it is used in your home, not exported cheaply.

Large Home, No EV
$3,800/yr

4-bed home, pool, 2–3 ACs, average evening usage. The bundled 42kWh battery captures excess solar for evening use instead of exporting it cheaply.

Large Home + EV
$4,600/yr

Solar and battery charge your EV daily using excess midday generation — replacing petrol AND electricity costs simultaneously.

Blackout Backup
42kWh

The bundled Alpha, Sungrow, or Sigenergy-class battery capacity keeps a large home running for an extended period during a grid outage.

Is 13.3kW the Right Size for Your Home?

Our team reviews your electricity bills and roof to confirm the right system size before quoting. In some cases, a 10.45kW system achieves similar savings at a lower cost. Get your free assessment →

Is This Right for You?

Who Is the 13.3kW System Best For?

4+ Bedroom Homes

Larger households with higher daily usage — multiple ACs, pools, spas, home offices, and large appliances — will see the greatest return from a 13.3kW system.

EV Owners

Charge your EV from solar for free. A 13.3kW system generates enough excess midday energy to add 50–80km of daily EV range at zero marginal cost.

Blackout Protection Seekers

The bundled 42kWh battery is large enough to keep most large homes running through an extended grid outage, while also capturing midday solar for evening use.

FAQ

13.3kW Solar & Battery System Questions

A 13.3kW system uses 32 solar panels rated at 415W each. These are typically spread across two roof faces to maximise exposure throughout the day. Our team designs the optimal layout for your specific roof during the free site assessment.
You need approximately 60–70 square metres of unshaded roof space for a 13.3kW system. This is typically achievable on most 4-bedroom homes. If your roof space is limited, we can design a split system across north, east, and west faces.
If your quarterly electricity bill is over $400–$500 and you have plans to add an EV or pool, 13.3kW is unlikely to be oversized. Our team reviews your bills and usage patterns before recommending a size. Some households are better served by a 10.45kW system — we will tell you honestly if that is the case.
The 13.3kW package includes a 10kW inverter (Fronius, SolarEdge, or Sungrow) and a 42kWh battery. The specific inverter model is confirmed after your site assessment — some roof layouts suit single-string inverters, while others benefit from optimised systems with panel-level monitoring.
Yes. A 13.3kW system generates 50–58 kWh on a good summer day in Sydney. After covering household loads, there is typically 20–30 kWh of excess that can charge the battery or directly charge an EV during daylight hours — equivalent to 100–150km of driving, daily.
Limited Time — Government Rebates Available

Ready to Make the
Switch to Solar?

Join over 10,000 Australian households already saving with SimpliSolar. Get your personalised, no-obligation quote today — installation as fast as 2 weeks.

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No obligation, 100% free SAA-accredited installers Government rebate eligible 25-year panel warranty