Your battery should be earning, not just sitting.
30 days free. No card required. Sunnn+ puts your home battery to work on the wholesale market, charging when power is cheap and selling when prices spike. It trades for you, you set the rules, and real people answer when you ask. No app to babysit.
30 days free, then $15 a month. Keep it only if you want to. Fox ESS and SAJ earn today. Sungrow, Sigenergy, Tesla Powerwall, SolaX, Growatt, Solis, AlphaESS, Deye and Sunsynk link today and start earning after a short test on your battery.
Not sure yet? Watch the 10-minute webinarTrading needs a Localvolts account in ACT, NSW, QLD, SA and TAS, or an Amber account in Victoria. They charge their own fees. Earnings are not guaranteed.
30 days free
No card required
100%
Actual earnings, never estimates
24/7
Trading within your limits
30 days free, no card needed
Cancel any time
12 months free with a Sunnn install
You set the battery floor
Real people who reply
Sound familiar?
You paid for a battery. You are still paying bills. And nobody calls back.
We talk to battery owners every day. Many bought from a good installer, then heard nothing once the job was done. Others joined a program that took over their battery and left them short at night. Sunnn+ is built to be the opposite.
What we hear
“We have a big battery and we are still paying bills.”
We show you why, and what to change
Sunnn+ learns how your home uses power and when your solar makes it, then tells you in plain words what your battery did and why. Your monthly report is honest, bad months included. If another plan would have paid you more, it says so.
What we hear
“I have asked for help over and over and heard nothing.”
Ask, and someone answers
Ask Mia in the app any time of day. Anything she cannot sort out goes straight to the Sunnn team as a ticket, and a real person replies by email. No being passed around.
What we hear
“The last company took over my battery and left us short at night.”
It trades for you. You set the rules.
Choose a Conservative, Balanced or Aggressive trading style. Set the backup it must always keep. Keep tonight's charge for your home, or pause any time. Nothing is locked away from you.
What we hear
“I am not going to sign up and hope for the best.”
See how it works before you trust it
Try it free for 30 days with no card. The app shows tomorrow's plan, every trade and the reason for each one, so you can check it with your own eyes before you keep it.
Working with you
Not set and forget. We are in it with you.
Sunnn+ is a service, not just software. We help you understand your battery, we are straight with you about what is working, and we keep building the app around what members tell us they need.
Help to get the most from it
We help you understand how your battery, solar and daily use fit together, and tell you straight what is working and what is not.
No app to babysit
Once it is set up, Sunnn+ runs by itself. Open the app when you want to look, not because you have to.
Tuned to your home
Your home is not average. Tell us how you live and what matters to you, and we set Sunnn+ up around it.
Built with members
We read the feedback members send and keep improving the app around what they need. Tell us what would help you.
Already have a battery in NSW or SA?
Your battery could qualify for a one-off incentive.
Eligible Localvolts customers may receive up to about $1,000 in NSW, or $2,000 in SA for eligible residential concession customers, through state battery schemes. New and existing batteries may qualify.
Localvolts checks your system first. MAC, the external certificate provider, checks final eligibility and pays successful applicants directly. Localvolts adds an application and verification fee to successful applicants’ electricity bills. The figures are before that fee; your payment depends on your battery and eligibility.
Eligibility and scheme details
NSW: eligible households and small businesses, 2 to 50 kWh usable battery capacity, incentive capped at 28 kWh, at least 6 years of remaining warranty, approved battery and installation, and no life-support equipment. NSW allows one claim per electricity meter (NMI), not a new claim for each battery. Apartment-building batteries are excluded.
SA through Localvolts: eligible residential concession customers, at least 2 kWh nominal battery capacity, at least 5 years of remaining warranty, and an approved battery and installation. The activity generally can be completed once per property. Previous claims can affect eligibility. Joining Sunnn+ alone does not guarantee a payment.
These government schemes are available through other participating providers too.
Localvolts scheme details and feesNSW Government rulesSA scheme rules
Choosing your battery trading app
Why choose Sunnn+?
Sunnn+ runs on Localvolts, a wholesale pass-through retailer, and on Amber in Victoria. Here is what you get with Sunnn+ to help you decide if it suits your home.
Plans on every five-minute price
Localvolts, or Amber in Victoria, passes through wholesale electricity prices. Sunnn+ reads each five-minute price to decide when to charge, hold or sell. Localvolts has its own daily fee, and normal electricity charges still apply.
We help set up bonus exports
For Localvolts customers: where your network offers one, we ask Localvolts to move you onto its two-way tariff, which pays extra for selling in the evening. You request the switch in Sunnn+. It needs approval, and we show when it is live. Some networks also charge for midday exports, sometimes above a free allowance.
It learns your home and plans around you
Sunnn+ learns how your home uses power, what your solar produces and when you prefer to keep energy back. It plans around your own recent readings and the reserve you choose, so the plan suits your home.
Smart forecasting that keeps learning
As new readings arrive each day, Sunnn+ refreshes its view of your home and solar. It checks its forecasts against what actually happened to track their accuracy. Forecasts are estimates and can change; better results are not guaranteed.
Know why your battery did that
See battery activity in the app and ask why it charged or sold. Sunnn+ explains its recent decisions in plain words.
An evening plan for your home
Sunnn+ plans evening sales around your expected overnight use, keeping your chosen reserve floor. It aims to sell spare energy while leaving charge for the night. Forecasts can change, and earnings are not guaranteed.
A local Australian team that replies
Ask in the app and the Sunnn team answers. We help you get the most from your battery, whoever installed it. If you bought your system through Sunnn, we also have the installation details on hand.
One battery, one controller
Sunnn+ sends the battery commands. Another VPP controller must be off. We check for signs of another controller and block trading when we detect a conflict. You choose the reserve floor and can pause any time.
Localvolts charges its own daily fee, from $1.10 a day for homes, plus electricity, network supply, metering and other costs, which it passes through at cost. This is not a full list of bill charges. Sunnn+ is a separate subscription, with options shown at signup. Earnings are not guaranteed.
Checked 21 October 2026. Sources: Localvolts FAQ, Localvolts fees and five-minute prices.
See it work
One hot day with Sunnn+.
Real app, shown with sample data. Earnings are not guaranteed.
The app
Your battery, in your pocket.
See what you have earned, the live market price, your home’s power right now and every trade Sunnn+ made, all in one place.
Real app screens, shown with sample data. Earnings are not guaranteed.
What it does
A trader for your battery.
The wholesale price moves every few minutes. Sunnn+ is the deterministic engine that acts on it, every interval, inside the limits you set.
Trades while you sleep
Every interval, Sunnn+ reads the wholesale price and decides: charge from the grid when it is cheap, hold, or export when prices spike. No app-watching, no timers to set.
Safety clamped, always
Never discharges below your reserve, never exceeds your export limit. If prices go stale or anything is uncertain, it falls back to safe self-use. Fail safe, never fail open.
Real earnings, not estimates
Earned means power your battery sold to the grid: metered exports times the real price you were paid, the same amount your bill shows. Money saved by using your own battery is shown on its own, never added in. No counterfactuals, no inflated baselines.
You stay in control
Pick a trading style, from Conservative to Aggressive. Set the backup it must never go below. Keep tonight's charge for your own home, or pause any time. One tap reverts your battery to normal self-use.
Built on your own system
Sunnn+ talks to your battery through the brand's own online service. Nothing new on the wall, no extra hardware, no installer visit.
Conflict aware
Sunnn+ checks for signs of another controller and blocks trading if it detects a conflict. Turn off any other VPP controller before connecting, so Sunnn+ can be the only software sending battery commands.
How it works
Connected in minutes.
Join Localvolts, or Amber in Victoria
Sunnn+ trades on Localvolts prices, so you need a Localvolts account. Not with them yet? Join through Sunnn below. Then sign up at plus.sunnn.co and add your meter number, and we check it. In Victoria, join Amber with our link instead, as your power company only. Do not connect your battery in Amber or turn on SmartShift. Then paste your Amber API key (from app.amber.com.au/developers) when you sign up. Try Sunnn+ free for 30 days. No card needed. Keep it after 30 days only if you want to. Every Sunnn install and system upgrade includes 12 months free from switch-on.
We check your system
Our team links your battery and confirms it is reachable and controllable. We also check nothing else is already trying to control it, then set your reserve floor and export limit. The first switch-on for every battery is supervised.
It starts earning
Sunnn+ charges when power is cheap and sells at the peaks, always inside the rules you set. Watch live status and actual earnings build in the app, and ask us anything along the way.
Localvolts partner
Sunnn+ runs on Localvolts (Amber in Victoria). Join through Sunnn.
Outside Victoria, Sunnn+ works with Localvolts. Localvolts is an electricity retailer that passes the live five-minute wholesale price through to you, for power you buy and power you sell. Sunnn is an official Localvolts partner. Sign up through our link and Localvolts moves your account across and sends your bills. Once the switch is done, Sunnn+ can trade your battery on Localvolts prices. Localvolts charges its own daily fee, and your electricity charges still apply. Earnings are not guaranteed.
Not with Localvolts yet? The sign-up gives you our Localvolts link to switch.
Where it is available
Homes in ACT, NSW, QLD, SA and TAS. Localvolts does not cover Victoria, so there Sunnn+ works with Amber instead: join Amber as your power company only, and do not connect your battery in Amber or turn on SmartShift. Not in WA or the NT yet. Sunnn may receive a referral credit from Amber; it does not change what you pay.
In Victoria? Join Amber through SunnnNSW and SA battery schemes
Localvolts is an approved VPP provider for the NSW PDRS (BESS2) and SA REPS (VPP1) battery schemes, so eligible customers may get a one-time payment under the scheme. The schemes set the rules, and Localvolts and the scheme’s certificate provider check who qualifies.
How the NSW and SA schemes workWho you deal with
Localvolts is your retailer: it bills you and pays any credits straight to you. Sunnn runs Sunnn+ on your battery.
Safety first
It controls real hardware. So we built it to fail safe.
Trading your battery means sending commands to live grid-export equipment. Every part of Sunnn+ is designed around one rule: when in doubt, do the safe thing.
Your reserve is sacred
It never discharges below the floor you set, so you always have backup in the battery.
Export limit respected
Every command stays within your DNSP connection limit. No breaches, ever.
Verified, not assumed
Each command is read back from the inverter to confirm it actually took effect.
Dead-man's switch
If the controller ever goes silent, your system automatically reverts to normal self-use.
Try it on your own battery
30 days free. No card required.
Then $15 a month, only if you want to keep it. We ask for a card near the end of your free month.
Your first 30 days free
No card needed to start
- Battery trading within your limits
- Live status and metered earnings
- Your reserve settings and pause control
- For Sunnn systems and batteries bought elsewhere
- Cancel any time
Trading needs a Localvolts account in ACT, NSW, QLD, SA and TAS, or an Amber account in Victoria. They charge their own fees, and your electricity charges still apply. Earnings are not guaranteed.
No card by day 30? Trading pauses and your battery returns to normal self-use. Add a card and trading starts again.
Every Sunnn install and system upgrade includes 12 months of Sunnn+ free from switch-on. An upgrade restarts a fresh 12 months; free years do not stack. A card is only needed to continue after the year.
Refer a friend and you both get an extra month free.
Cancel any time. Your subscription ends at the end of the paid period. No refunds for change of mind, including part months and unused time. This does not affect your rights under the Australian Consumer Law.
Read the Sunnn+ termsIs this you?
Two things to get started.
Sunnn+ works with the system you already have. No new battery, no installer, no hardware on the wall.
Check your batteryA supported battery
Fox ESS is the system Sunnn supplies. Fox ESS and SAJ earn today. Sungrow, Sigenergy, Tesla Powerwall, SolaX, Growatt, Solis, AlphaESS, Deye and Sunsynk link today and start earning after a short test on your battery.
A Localvolts or Amber plan
Five-minute wholesale prices, so there is a live spread to trade. Localvolts covers ACT, NSW, QLD, SA and TAS. In Victoria, use Amber as your power company only, with your battery not connected in Amber. Sunnn+ must be the only controller, so turn off any VPP.
No battery yet? Check your eligibility for a Sunnn solar and battery system first.
FAQ
Questions, answered.
30 days free. No card required.
Keep it after 30 days only if you want to.
Anything else? Email info@sunnn.co.
What do I need to use Sunnn+?
A battery and inverter from a brand we support, and a Localvolts account (Localvolts covers ACT, NSW, QLD, SA and TAS), or an Amber account in Victoria. Sunnn+ must be the only thing controlling the battery, so turn off any virtual power plant (VPP) first. Fox ESS and SAJ earn today. Sungrow, Sigenergy, Tesla Powerwall, SolaX, Growatt, Solis, AlphaESS, Deye and Sunsynk link today and start earning after a short test on your battery. Check your battery on the compatibility page. If you do not have a battery yet, talk to us about a system first.
Does Sunnn+ work with my battery brand?
Fox ESS and SAJ earn today. Sungrow, Sigenergy, Tesla Powerwall, SolaX, Growatt, Solis, AlphaESS, Deye and Sunsynk link today and start earning after a short test on your battery. GoodWe, Huawei and Enphase are waiting on the brand to give us access, so we cannot connect them yet. Other brands may not be supported. Search your brand on the compatibility page and, if it is not listed, tell us what you have.
Does Sunnn+ take over my battery?
It trades for you, but you set the rules. Choose a trading style (Conservative, Balanced or Aggressive), set the backup reserve it must never go below, keep tonight's charge for your own home, or pause any time. You can see every decision it makes and ask why. Nothing is set and forgotten.
What if I need help?
Ask Mia in the app. She explains what your battery did and why, and can change a setting for you once you say yes. Anything she cannot sort out goes to the Sunnn team as a ticket, and a real person replies by email. Not a member yet? Email info@sunnn.co.
Do I have to manage it myself?
No. Once your battery is connected, Sunnn+ runs by itself and you never have to open the app. We set it up with you, check your system first and watch the first switch-on. Want it tuned to how your home lives? Tell us and we set it up around you.
Is it safe to let software control my battery?
Every command is checked and read back to confirm. Sunnn+ never discharges below the reserve you set and never exceeds your export limit. If anything is uncertain, it reverts to normal self-use. There is a kill switch and a per-site pause at all times.
How does Sunnn+ make me money?
On the wholesale market the price moves every few minutes and sometimes goes very high or even negative. Sunnn+ charges your battery when power is cheap and sells stored energy back when the export price spikes. Earnings depend on prices, energy use and your system, and are not guaranteed.
What does it cost?
Try Sunnn+ free for 30 days. No card needed. Keep it after 30 days only if you want to. We ask for a card near the end of the free month. Every Sunnn install and system upgrade includes 12 months free from switch-on. An upgrade restarts the free year rather than adding to it. A card is only needed to continue after the year. Refer a friend and you both get an extra month free. Cancel any time; paid access ends at the end of the paid period. Trading needs a separate Localvolts account, or an Amber account in Victoria. They charge their own fees, and your electricity charges still apply. Earnings are not guaranteed.
What happens if I do not add a card?
We ask for a card near the end of your free month. If you have not added one by day 30, trading pauses and your battery returns to normal self-use. Add a card and trading starts again. If your Sunnn install or upgrade includes a free year, a card is only needed to continue after that year.
Will it work with my retailer?
In ACT, NSW, QLD, SA and TAS, Sunnn+ works with Localvolts. Localvolts passes the live wholesale price through to you, and as a Sunnn partner it shares those prices with Sunnn+ to trade on. You can join through our link. In Victoria, Sunnn+ works with Amber: join Amber as your power company only, do not connect your battery in Amber or turn on SmartShift, and paste your Amber API key into Sunnn+. Outside Victoria, Sunnn+ does not run on Amber, so moving to Sunnn+ there means leaving Amber. Not in WA or the NT yet. Flat-rate plans have no spread to trade.
Are the earnings figures real?
In the app, yes. Earnings are only the power your battery sold to the grid, worked out from your real metered exports and the real price you were paid, so they match the export credit on your bill. Money you saved by using your own battery instead of buying power is shown separately and is never counted as earnings. No modelled or hypothetical numbers. The figures on this page, including the dashboard at the top, are examples with sample data, not real earnings.
Ready when you are
Try Sunnn+ free for 30 days. No card needed.
Connect your battery and Localvolts account (Amber in Victoria), and Sunnn+ starts trading inside your limits. Keep it after 30 days only if you want to, for $15 a month per house. Localvolts and Amber charge their own fees. Earnings are not guaranteed.
Start free, no cardWant the full picture first? Watch the 10-minute webinarAlready a member? Log in
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