Here is the number most people are after: a solar and battery package in NSW costs roughly $11,000 to $20,000 fully installed in 2026, after the federal rebates. The most common pairing, 6.6kW of panels with a 10kWh battery, lands around $11,000 to $15,000 all in. Where you sit in that range depends on the battery brand, whether your home is single or three-phase, and how much electrical work your property needs before anything goes on the roof.
This guide sets out package prices by size, what the rebates knock off in NSW specifically, and why bundling solar and a battery together usually costs less than buying them a year apart.
Package prices at a glance
Fully installed NSW figures for 2026, after the federal STC discount on the solar and the federal battery rebate. These assume a single-visit install on a standard roof, so switchboard upgrades, two-storey access or long cable runs push the figure up.
| Package | Suits | Typical installed price (2026, after federal rebates) |
| 6.6kW solar + ~5kWh battery | Small households, modest evening use | $8,500 to $11,500 |
| 6.6kW solar + 10kWh battery | The popular choice for 3 to 4 people | $11,000 to $15,000 |
| 6.6kW solar + 13.5kWh (e.g. Powerwall 3) | Higher evening use, whole-home backup | $14,000 to $20,000 |
| 10kW solar + 13.5kWh battery | Larger homes, pools, EV charging | $16,000 to $22,000 |
Prices move through the year and vary by installer, so use these to sanity-check a quote rather than as a fixed rate. To size the solar half properly, our guides to 6.6kW system costs and returns and 8kW system output are a good start, and the battery half is covered in our 10kWh battery price guide.
What the rebates take off in NSW
Two federal rebates apply to a package, and NSW adds a couple of extra levers on top.
Federal STC discount on the solar. The Small-scale Renewable Energy Scheme discounts your panels upfront through certificates your installer sells on your behalf. For a 6.6kW system in NSW in 2026 that is worth roughly $1,500 to $2,000, and a 10kW system around $2,000 to $3,000. The catch is the step-down: the deeming period dropped from six years to five on 1 January 2026, trimming a few hundred dollars off the discount, and it shrinks again each January until the scheme ends in 2030. Our NSW solar rebates guide keeps the detail current.
Federal battery rebate on the storage. The Cheaper Home Batteries Program takes around 25 to 30 per cent off an eligible battery, applied upfront by your installer. In 2026 that is roughly $2,500 to $3,000 off a 10kWh battery and closer to $4,000 to $4,500 off a 13.5kWh Powerwall. Since 1 May 2026 it pays in tiers: the full rate on the first 14kWh of usable capacity, then a reduced rate above that. See our federal battery rebate guide for how it is calculated.
NSW VPP incentive. NSW does not run a direct cash rebate for batteries, but the Peak Demand Reduction Scheme can add up to around $1,500 off when your battery is enrolled in an approved virtual power plant. Our virtual power plant page explains the trade-offs before you sign up.
NSW Home Energy Saver loan. For households that would rather spread the cost, NSW offers interest-free loans of up to $15,000 for solar and battery systems, repayable over several years. We cover eligibility in our note on the Home Energy Saver program, and there are private finance paths on our finance options page.
Why a package beats buying separately
Adding a battery at the same time as your solar usually costs $1,500 to $3,000 less than retrofitting one later, and the reasons are practical rather than promotional.
A combined system can share a single hybrid inverter instead of running two separate units, the installer designs the whole system as one job, and you pay for one truck visit and one commissioning rather than two. Retrofitting a battery to an older system often means extra hardware, a second round of electrical work, and sometimes a switchboard upgrade you could have folded into the original install. If a battery is on your horizon at all, doing it together is the cheaper path. Whether storage stacks up for your usage in the first place is worth checking in our piece on whether solar batteries are worth it.
Why 6.6kW is the usual pairing
You will notice 6.6kW turns up in most packages. That is because a typical single-phase NSW connection allows up to 5kW of export to the grid, and a 6.6kW array pairs neatly with a 5kW inverter while the extra panel capacity covers real-world losses and helps recharge the battery faster on cloudy days. Larger homes, three-phase connections, pools or EVs are where 10kW and bigger make sense. If you are unsure, our guide to sizing a system for your home walks through matching capacity to your bills.
What changes your package price
Two NSW quotes for a “6.6kW plus 10kWh” package can differ by thousands. The usual reasons:
Battery brand. A premium battery like the Tesla Powerwall 3 sits well above a mid-range Sungrow or Alpha ESS system of similar capacity. Our Powerwall 3 vs Sungrow comparison shows how that choice moves the total.
Single-phase or three-phase. Newer builds across the South West Sydney growth corridor are often three-phase, which changes the inverter and can lift the price against a standard single-phase terrace.
Switchboard and wiring. Older homes frequently need a switchboard upgrade before a battery is added. A quote that leaves it out is not cheaper, it is incomplete.
Roof and access. Tile roofs, two-storey homes and awkward access add labour over a simple single-storey tin roof.
Backup scope. Whole-home backup needs more hardware than essential-circuits-only backup, and that shows in the price.
Is a solar and battery package worth it in NSW?
For a household that uses a good share of its power in the evening, or wants blackout cover, a package generally pays for itself over its life through avoided grid costs, and the 2026 rebates have shortened that payback considerably. It is a weaker case for low-usage homes that already consume most of their solar during the day. The honest answer depends on your bills and your daily pattern, not on a brochure figure.
At Solar National we design and install solar and battery packages across Sydney and the surrounding NSW suburbs through our residential solar installation service, and every quote is itemised so you can see the solar, the battery, the electrical work and each rebate as separate lines. If you want a real package price for your home rather than a range, request a quote and we will size it to your usage and apply the rebates upfront.
Frequently asked questions
How much is a solar and battery package in NSW in 2026?
Roughly $11,000 to $20,000 fully installed after the federal rebates, depending on system size and battery brand. The common 6.6kW solar plus 10kWh battery pairing typically lands around $11,000 to $15,000, while a 10kW system with a 13.5kWh battery runs $16,000 to $22,000.
Is it cheaper to buy solar and a battery together?
Usually, yes. Installing them together tends to cost $1,500 to $3,000 less than retrofitting a battery later, because the system shares one hybrid inverter, is designed as a single job, and avoids a second round of electrical work.
What rebates apply to a solar and battery package in NSW?
The federal STC discount reduces the solar cost, and the federal Cheaper Home Batteries Program takes around 25 to 30 per cent off the battery, both applied upfront. NSW does not offer a direct cash rebate, but the Peak Demand Reduction Scheme can add up to about $1,500 for batteries enrolled in a virtual power plant.
Can I get help paying for it in NSW?
Yes. The NSW Home Energy Saver program offers interest-free loans of up to $15,000 for solar and battery systems, repayable over several years, and private finance is also available. This lets you spread the cost rather than paying upfront.
What size solar and battery do I need?
Most 3 to 4 person NSW households suit 6.6kW of solar with a 10kWh battery. Larger homes, or those with a pool or an EV, often move to 10kW of solar with a 13.5kWh or larger battery. Sizing should be based on your actual electricity bills.
