Free · no details needed
What would solar and a battery do to your bill?
Move the sliders. Everything updates as you go. We use the real rules for your part of NSW. You always get a low price and a high price, never one exact number.
About your home
You use about 20 kWh a day. Around 10 kWh of that is at night.
A car uses a lot of power at night. So we go up one battery size, but only when it really helps. Want power in a blackout? Pick "Backup power" above.
Three ways homeowners are buying right now
There is no one answer. Three real choices, and only the first one is ours.
Money back in 5–6 yr
−$4,200–$4,500 government rebate, already off that price
A practical match for how you use power now.
Big enough to make a real difference. Not so big that you pay for storage you never fill.
Why we’d choose it
- Sized to the power you actually use
- Stores your daytime sun for the evening
- The least you can spend and still feel it
Best if you want the system built around your own numbers.
A 10 kWh battery fits how much power you use at night, with enough solar for your daytime. We don’t sell you more than you need.
That price is what jobs like this normally cost around NSW. It is not our quote. You get the exact price after we check your roof and switchboard.
Not in that price: switchboard work, hard-to-reach roofs, upgrading the house to three-phase power, and the extra wiring for blackout backup. If your home needs any of them, we put them in your quote.
How sure are we? This is a good guess, not exact. Four things change it: shade on your roof, your power plan, the state of your switchboard, and how you use power.
Money back in 7–9 yr
−$9,000–$9,700 government rebate, already off that price
+$5,000 more government rebate than the first option
This is the size many homeowners are choosing right now.
Bigger batteries are cheaper while the rebate lasts. And people see neighbours fitting them.
Why people choose it
- 28 kWh is where the rebate stops being generous
- More of your own sun after dark
- Skip the grid when power costs the most
- Room already there for a car or a heat pump later
It costs more than the system we’d size from your usage alone.
The rebate pays its full rate on the first 14 kWh and a good part of it up to 28 kWh, so going bigger costs less than you would think. Past that it drops to a token amount.
Backup is separate. Most homes keep the important things on — fridge, lights, internet, a few power points — not the whole house. That needs its own switch and wiring.
Money back in 10–14 yr
−$11,200–$12,100 government rebate, already off that price
For people planning well ahead.
For homes planning electric cars, big daytime use, or buying as little grid power as they can.
Why people want it
- A car, or two, and heavy future use
- Big daytime loads — pool, aircon, heat pump
- Much more stored power for long evenings
- Room for whatever you add next
Whether you’d use all that storage is the part we’d check with you.
Why this is our limit. A Fox ESS EQ4800 battery is built from 4.66 kWh modules, and 42 kWh is as far as we go — past 50 kWh the government rebate pays nothing at all. Bigger than that is a different conversation: ring us and we will price it properly rather than guess here.
What the last step up costs. Going from 28 kWh to 42 kWh adds about $6,290. Past 28 kWh the rebate drops to a token amount, so this last bit is close to full price. Plenty of people still want it. We just think you should see the number first.
A 42 kWh battery wants about 20 kW of solar to refill it. With less, it still works. It just sits part full more of the year.
Prices are for the Fox ESS EQ4800 battery. Other batteries, and other brands, cost different money — tell us what you want and we will price that instead.
Free, and no obligation. We price whichever one you want.
That is your answer. Everything below is extra, if you want it.
The rules on your street
- What you get paid for spare power3c per kWh
- Midday charge for sending power out1.8c per kWh, after the first 8 kWh a day free
- Paid more in the evening (only if you sell then)11.0c per kWh (4–8pm weekdays)
- Most you can send back to the grid5 kW
- Free power at midday (Solar Sharer)You can get it here
Most homes can send about 5 kW of spare solar back to the grid. From late 2026 that can rise to 10 kW when the network has room for it — they call that flexible export.
We checked these rates on 2026-08-16. They reset around 1 July each year. The evening rate only applies if you sell stored power back then (through a Virtual Power Plant, or VPP — where a power company pays to use a bit of your battery at busy times), so we leave it out of the saving above.
What you'd save
The panels pay for themselves fastest. A battery costs more and takes longer. You buy a battery for two things: your own sun at night, and backup power. Not ready? Start with panels and add a battery later.
Three ways to save even more
on your Endeavour networkHow you run your home changes what you save. Use your own sun in the day. Let the battery cover the evening. Do these three and the numbers above get better:
Hot water on a separate night meter? Once you have solar, move it to a midday timer. Your own sun costs less than the night rate. See the full guide →
What a battery really gives you
apart from the moneyYour home might also need one of these
we tell you before you decideSome homes need extra work to be safe and to meet the rules. We check before you decide, and put anything you need in your written quote:
- A newer switchboard — older boards often need work before a battery or a fast car charger can go in.
- Blackout backup gear — the switch and wiring that actually keeps your power on when the grid goes down.
- A bigger inverter, or a second one — a big battery needs enough inverter to fill it and to run your evening.
- Three-phase power — for bigger systems, or if your home already has it.
- Extra cable, or a new meter — depends on where things go and what you have now.
Most homes need none of these, or just one. Either way you see the price before you decide.
Your choices, side by side
For each one: what it saves you a year, and how long until you get your money back.
Solar only
Solar + battery
Solar + battery + VPP
Solar + battery + Solar Sharer
Your bill before and after
Your bill changes through the year. It drops most in the sunny months and rises in winter. A few homes reach $0 in summer. We will tell you honestly if that is likely for you. You always pay a small daily fee for being connected (about $400 a year), and we count your spare power at the real 3c per kWh you get paid — not the 30c some quotes use to make the numbers look bigger.
When do you get your money back?
the next 25 yearsA picture, not a promise. Your saving grows a little each year as power prices go up (about 3%), and drops a little as the panels get older (about 0.5% a year). We also take off the cost of one new inverter and one new battery, around year 12 and year 13.
Where your power goes
AfternoonA battery can also fill up from the grid (the dotted orange line) — during free midday hours, on cheap overnight power, or when a VPP tops it up for you. We only show that line when it really happens on your street.
How we worked this out
- What you pay for powerabout 30c per kWh
- What you get paid for spare power3c per kWh
- Midday charge for sending power out1.8c per kWh
- Daily fee just for being connectedabout $402 a year
- How much power prices go up each yearabout 3%
- Government battery rebateabout 30% off — gets smaller on 1 Jan 2027
Every number here has a date and a source. We last checked them on 2026-07-29. Most of them reset around 1 July each year.
We come and check your home properly — free, and no pressure — then price the exact set-up you built here.
These numbers are an estimate, not a promise. We work them out from what you told us, and from figures we check and date ourselves. What you really save depends on your power use, your plan, the weather and future prices. That is why we show a low number and a high number. Your written quote has the exact figures.