Step 1 of 3

Start with your home and energy

What are you planning?

Add a batteryI already have rooftop solar New solar + batteryDesign both together Upgrade my systemReplace or expand older equipment

Power supply Roof shading

Your existing solarDrag to match your rooftop system

Quarterly electricity billUse a typical three-month bill

Move the slider or type an exact amount. Your estimate updates as you go.

When is most power used?

Mostly daytimeSomeone is usually home BalancedMixed day and evening use Mostly eveningCooking, aircon and family loads

Adjust electricity rates & see assumptions

Import rate ($ / kWh) Feed-in tariff ($ / kWh)

Model assumptions: 91 days per quarter; 82% of the bill treated as energy charges; 4.2 kWh of solar generation per kW per day before shading; 80% of nominal battery capacity available for this model; 90% round-trip efficiency. Savings use a ±18% illustrative range, capped against your bill. No electricity-price inflation or VPP income is assumed.

For homes with existing solar, the bill alone cannot tell us total household use or exports. This is a comparison scenario; we verify it against meter data before quoting.

Step 2 of 3 · No contact details needed

See what changes with size.

Compare the same home across our three listed battery packages. More capacity only helps if you have energy to charge it and demand to use it.

Let the estimator choose a starting comparison

Compare option 20.72 kWh Compact Battery from — —estimated savings / year — Compare option 28 kWh Family Battery from — —estimated savings / year — Compare option 42 kWh High capacity Battery from — —estimated savings / year —

What your numbers tell us

Solar surplus—→Battery shifts—→Evening demand—

Prices use our existing listed package assumptions, including GST, standard installation and applicable rebate. Eligibility, final equipment, backup and site extras need a written quote. New solar and replacement work are priced separately.

Step 3 of 3

Let’s check your selected option

Selected battery option—

Battery package from—

Estimated annual savings—

Simple payback—

This preliminary result uses the answers you provided. Final equipment compatibility, switchboard work, cable routes and backup scope still need to be checked.

Have SUNNY Energy check this estimate

Share your details and selected next step. SUNNY’s assessment team will check the estimate against your property and contact you within one business day.

Suburb or postcode

Name Phone Email (optional) Installation timing What would you like us to do next?

Your details go directly to SUNNY Energy and are not sold to third parties.

When you submit, we securely save your enquiry so it can reach our team even if our CRM is temporarily unavailable.

Thanks — your estimate has been saved.

Our team has received your request and selected next step.

Your preliminary home energy estimate

Your selected battery option

Selected battery—

Battery package from—incl. GST, standard installation, after rebate

Estimated annual savings—

Simple payback—

Estimated daily use—

What still needs checking

This is a preliminary estimate, not a fixed electrical design or binding quote. Savings vary with weather, tariffs, household behaviour, export limits, equipment condition and installation scope. Backup and non-standard site work are confirmed separately in writing.

Call 1300 013 888 View EP11 product details

Your home. Your energy.
Find your battery fit.

Start with your home and energy

See what changes with size.

What your numbers tell us

Let’s check your selected option

Have SUNNY Energy check this estimate

Your selected battery option

What still needs checking

The same bill can need a different battery.

What you can expect from a SUNNY Energy quote.

1 · Clear installed price

2 · Accredited installers

3 · Full equipment models

4 · Site-specific honesty