CUSTOMER STORY · SOUTH AUSTRALIA

More life.
Less on the bill.

A family of four brings solar, battery storage and smarter timing together — without putting everyday comfort on hold.

See the bill comparison ↗Discover their story ↓

$27.55Electricity bill for 13 Aug–12 Sep 2026
31 days, including supply charges and GST.
One household’s result. Yours will differ.

A home full of life.
Solar and storage designed around the household.

01 / THE FAMILY STORY

Someone’s always home.
Energy is always needed.

Heating, cooling, a swimming pool and an electric vehicle. This household’s energy needs stretch well beyond the evening peak.

They already had solar. The next step was to make more of it — with more generation, battery storage and a routine that takes advantage of their electricity plan.

Everyday comfortBetter energy useReliable support

WHAT POWERS FAMILY LIFE?

Four people.
Plenty to power.

Some loads run when they’re needed. Others can move to a better time.

Heating & coolingYear-round comfort

Pool pumpEveryday upkeep

EV chargingReady for the road

Life at homeDaytime & evenings

Room for energy. Ready for everyday life.
The home’s Growatt solar and battery installation.

02 / THE UPGRADE · FEBRUARY 2026

More sunshine captured.
More energy to keep.

An unshaded east–west metal roof provided the setting for a solar expansion. Two battery towers and a three-phase hybrid inverter completed the upgrade.

12.35kWAdded rooftop solar

60kWhNominal battery capacity

Solar panels: 26 × Jinko 475W
Battery storage: 12 × Growatt APX 5kWh
Hybrid inverter: Growatt MID 15KTL3-XH
Inverter rating: 15kW · three phase

Battery capacity is nominal. Backup scope and usable energy depend on the installed system and settings.

03 / THE MIDDAY OPPORTUNITY

Use the sunshine.
Make timing count.

This family also makes use of their retailer’s free-electricity window. Pool pumping and EV charging offer opportunities to plan some demand around favourable times.

FREE-USAGE WINDOW10am–1pm

MidnightMiddayMidnight

546.5kWhImported in the free window
on the August–September bill

Generate in the day

Make use of rooftop solar.

Use the right window

Schedule flexible household loads.

Keep energy for later

Add flexibility with battery storage.

The free window reflects this household’s AGL Three for Free plan in August–September 2026. Check current retailer terms and eligibility.

04 / WHAT THE BILLS REVEAL

Two bills.
A different energy routine.

The earlier bill came before the upgrade. The later bill shows the family making use of its new system and a different electricity plan.

BEFORE THE UPGRADE

$92.84

15 Dec 2025–12 Jan 2026 · 29 days

Electricity planAGL Solar Savers

Charged-rate imports203.620kWh

Usage charges, ex. GST$88.95

AFTER THE UPGRADE

$27.55

13 Aug–12 Sep 2026 · 31 days

Electricity planAGL Three for Free

Charged-rate imports10.733kWh

Usage charges, ex. GST$4.45

Different seasons, billing lengths and tariffs apply. The earlier bill includes a one-off fee; the later bill includes a $5 reward credit. This comparison is not a measure of system-only savings.

98.1%

Make the most
of the free window.

Share of later-period grid imports
in the free window.

Free window · 546.522kWh

Charged rates · 10.733kWh

Inside the $27.55 bill.

Usage + supply + GST$43.20

Solar export + reward credits− $15.65

Bill total$27.55

Daily supply charges still apply, even with free usage.

Explore the full bill comparison

Amounts in AUD. Charge line items exclude GST; bill totals include GST.
Bill detail	Earlier period · 29 days	Later period · 31 days
Peak imports	140.720kWh	6.796kWh
Off-peak imports	54.716kWh	3.838kWh
Shoulder imports	8.184kWh	0.099kWh
Free-window imports	None listed	546.522kWh
Total grid imports	203.620kWh	557.255kWh
Usage charges	$88.95	$4.45
Supply charges	$29.40	$34.82
Other charges	$4.54	$0.00
Solar exports	1,247.077kWh	913.648kWh
Solar export credits	$42.34	$10.65
Reward credits	$0.00	$5.00
GST	$12.29	$3.93
Bill total	$92.84	$27.55

Grid imports exclude solar used directly in the home. These bills do not show battery charging flows or total household consumption.

THE SUNTERRA APPROACH

Designed for life.
Supported for the long run.

For this family, dependable equipment and after-sales support mattered alongside the price.

Start with the home, the energy habits and the electricity bill. Then bring the equipment and operating plan together.

What could work for your home? ↗

BEFORE YOU DECIDE

Questions worth asking.

Would my home need a battery this size?

Your usage, surplus solar, tariff, budget and backup needs shape the right size. This household’s 60kWh installation is one example. Sunterra can help assess your own home.

Can I add storage to existing solar?

It may be possible. Your inverter, electrical installation and proposed equipment need to be checked together. This home’s upgrade included a new three-phase hybrid inverter.

Will a battery protect me during a blackout?

Backup requires compatible equipment and a designed installation. Ask which circuits are included, what power limits apply and how the backup reserve will be set.

Could I see the same bill result?

Results depend on your energy use, weather, tariff, system and settings. This is one household’s billing period, not a savings guarantee or annual forecast.

YOUR HOME · YOUR ENERGY PLAN

Bring your bill.
Let’s find your opportunity.

Explore solar and battery options around the way you live.

Request a free quote ↗

Or call 1800 312 979

Let’s start with your home.

Your household and daily routine

Your existing solar equipment

Your goals for bills and backup

More life.Less on the bill.

Someone’s always home.Energy is always needed.

Four people.Plenty to power.

More sunshine captured.More energy to keep.

Use the sunshine.Make timing count.