Tesla Powerwall 3 · ACT 2906

The spot stayed, the battery changed

The battery could not go where the owner wanted it.

A single white Tesla-badged battery mounted on the grey rendered wall of a house, beside a timber-clad corner and a tall narrow window, standing on a pale timber deck in hard sunlight

What the customer wrote

Everything was smooth from the initial quote, through to the installation. There was some initial back and forth about which type of battery to install and location. In the end my preferred location was not going to meet standards which then meant having to change the brand of battery to one that would be more suitable outdoors. This was all handled well by Michael and the team.
Steve4.75 out of 5.Published on SolarQuotes

System specifications

Battery capacity
13.5 kWh
Siting
Rated for outdoors
On the day
Plumber capped a gas line

About this job

Where a battery may be installed

Australian standards restrict battery siting: clearances to windows and doors, distance from exits and habitable rooms, the construction of the wall behind it, and whether the unit is rated for outdoor conditions. A position that suits a homeowner often fails one of those tests. The check belongs before the sale, because discovering it on install day means either a compliance shortcut or a cancelled booking.

Changing the product to suit the location

Two ways out of a siting problem: move the battery, or choose one rated for where it needs to go. Here the location stayed and the brand changed to a unit suitable outdoors. That is not a small swap. Capacity, backup behaviour, cabling and the monitoring app all change with it, so the quote has to be rebuilt rather than adjusted.

The other trades

Battery installs are sub-contracted to the electricians who do them every week, which is normal and worth saying plainly. Sites throw up work that is not electrical. On this job a disused gas line still ran to an old barbecue point, so a plumber came the same day to remove and cap it. One visit, one mess, one clean-up.

How we work

The job above ran the way every Sunstak job runs. Six steps, from the bill you send us to the day your system is switched on.

  1. A cyan sign board standing on a driveway, lettered sunstak above the words THIS HOUSE IS POWERED BY SUNSTAK with the address sunstak.com.au along the bottom, the front of a white car in the left foreground and timber steps with two orange traffic cones behind it

    Before the visit

    Send us two bills, one from summer and one from winter, and tell us roughly when your house is busy. Your own numbers are where the design starts.

  2. Two men reaching to shake hands on the front path of a brick house with solar panels on its roof, one of them in a dark t-shirt carrying a circular cyan mark, while a woman stands in the open front doorway behind them

    Site visit or phone consultation

    One of our energy geeks goes through the roof, the switchboard and the meter with you, at the house or over the phone. What goes where, what the roof can carry and whether the board has room all get settled here.

  3. Two people at a desk in an office, one pointing at a wide monitor showing an aerial view of a house with a solar panel layout drawn on its roof

    Customised design

    A Sunstak engineer designs the system in house. You get back a drawing of your own house with the equipment set out on it, and what decided where each piece went.

  4. A man at a timber desk holding a telephone handset to his ear, two monitors in front of him showing an aerial view of rooftops and a bar chart, beside a keyboard, an open notebook and a mug

    Quote approval

    Your quote lists every item with its model number, and the exclusions as plainly as the inclusions. There is nothing to sign on the day, and nothing is ordered until you approve it.

  5. A person standing on a tiled roof holding a large solar panel above their head against a blue sky, with another person's hand reaching up from the gutter below

    Installation

    We tell you up front what gets switched off on the day, and for how long.

  6. A single-storey timber-clad house on a dry rural block at golden hour, its pitched metal roof covered by a full array of solar panels, a white battery standing against the timber wall beside a car charger with its cable coiled, a dark grey car parked on the gravel driveway and gum trees and low hills behind

    Post-installation support

    Nobody leaves until the system is commissioned and the monitoring is running on your phone. After that, service and warranty go through the same office that did the install.

More of the work

Every one of them is a customer's own account of the job.

  • Second Tesla Powerwall ACT 2600

    A second battery, and the first one fixed

    The owner wanted a second battery beside one another company had installed a year earlier, so inspecting that first one was part of the job. Faults nobody could see at quoting turned up on the day, and were corrected at no charge.

    Sunstak have just added a second Tesla Powerwall battery to my system, which had been installed a year ago by another provider. … The quality and professionalism of the installation was particularly impressive. Several deficiencies in the installation of the existing battery by my previous supplier were rectified without cost or question, even though some were not apparent at the time of quoting.
    Peter SolarQuotes
    Battery capacity
    27 kWh, two units
    Existing battery
    Fitted a year earlier by another provider
    Rectification
    Previous supplier's defects, no charge
    Two white Tesla-badged batteries standing side by side against a board-formed concrete retaining wall on a paved terrace, with ornamental grasses along the top of the wall and trees behind
  • Battery retrofit ACT 2905

    Quoted after looking at the house

    Retrofitting storage to an existing array depends on things you can only see on site. The inverter already fitted, spare ways in the switchboard, where a battery can legally sit, and how far that is from the meter. Some of the companies asked to quote this job never visited the house.

    I reviewed all of the companies on the ACT Government approved list for a solar battery to add to my existing solar panel system. I sought quotes from the 6 best rated companies. From the 4 quotes I received I chose SunStak. The main reason I chose them was because they were the most responsive, helpful and reasonably priced, a couple of the others didn't even visit the house before quoting.
    Berceuse SolarQuotes
    Work
    Battery added to an existing array
    Approved list
    ACT Government battery scheme
    Quotes sought
    Six approached, four quoted
    Site visit
    Some competitors quoted without one
    A white Tesla home battery mounted on dark blue weatherboard beside an open door, with two people talking at a table inside the lit room
  • Commercial rooftop solar Wanniassa ACT

    A school hall in Wanniassa

    A school roof is a set-out problem with a deadline attached. The array had to be planned, delivered and commissioned inside the break before the new term, on a site coordinated by somebody else. Forty kilowatts of panels onto one long hall roof, in five days, with six people on it.

    Thank you for delivering this project before the start of a new school term
    Project Manager, Trinity Christian School Sunstak Capability Statement, July 2025
    Panels
    Trina Solar
    Inverter
    30 kW Sungrow commercial
    Solar
    40 kW
    On site
    Five days, six staff
    Overhead aerial view of four long rows of solar panels on the curved-ridge roof of a large school building, with a playground and a yellow climbing frame in the yard alongside
  • Commercial solar and battery Lyneham ACT

    A temple in Lyneham

    The temple was referred by community members worried about its power bills: a large, draughty, hard-to-heat complex. Twenty kilowatts of solar and a forty-kilowatt-hour battery, with the meter board upgraded to carry it. The battery is there to hold the peak down, which on a commercial tariff is a separate charge from the energy.

    The Abbot is very pleased and wishes to pass on his appreciation and support to get this project delivered
    Project Manager, Wat Dhammadharo Sunstak Capability Statement, July 2025
    Solar
    20 kW
    Battery capacity
    40.5 kWh
    Switchboard
    Meter board upgraded
    Aerial view of solar panels across the tiled roof of a long brick building, with a spire-roofed hall beside it and gilded temple roofs among trees behind

Start saving with Sunstak

Speak with one of our energy geeks today.

  • Tesla Powerwall Premium Certified Installer
  • New Energy Tech Consumer Code approved seller
  • SunWiz 2026 award: Best Rated solar installer, #2 Most Popular in the A.C.T.
  • Solar Accreditation Australia approved

★★★★★

Having used two other installers previously, the Sunstak experience is head and shoulders superior…
Raffaele WebbGoogle review
  • 4.9From 216 Google reviews
  • 5.0From 29 SolarQuotes ratings

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