Skip to content

The Best Solar Power


The gateway to the South West now has access to Perth’s largest online solar power superstore, Perth Solar Warehouse & PSW Energy. The best solar panels Bunbury customers seek at no extra cost!

Blessed by region and now unbeatable solar and battery deals, life’s great in the South West.


With 17-years of experience in the solar & electrical Industry, we know technology

Electrical Tradesman - Solar Power Bunbury WA

Founded in Perth, WA in 2004. McKercher ECS was established as a sole trading entity by Derek McKercher.

MCkercher Corporation - Solar Power Bunbury WA

McKercher Corporation Pty Ltd evolves to support the demands and of a modern world with key brands.

Perth Solar Warehouse - Solar Power Bunbury WA

As demand for solar soars Perth Solar Warehouse offers the most transparent online solar energy range.

PSW Energy - Solar Power Bunbury WA

Perth Solar Warehouse satisfaction to a broader market - inc Bunbury. PSW Energy is the next level in solar & battery.

Popular Solar Packages

Unbeatable value on popular package options. Select your preferred product combination within each package!


Best Suited for energy users:
  • With 1-2 person households.
  • Who require an average of 15-units per day from solar.
  • With an average bill size of $100 - $200 p/bi-monthly bill cycle.
  • Who can consume 40% or more of their electricity during the day.


Best Suited for energy users:
  • With 2-5 person households.
  • Who require an average of 30-units per day from solar.
  • With an average bill size of $300 - $500 p/bi-monthly bill cycle.
  • Who can consume 40% or more of their electricity during the day.


Best Suited for energy users:
  • Large households or commercial.
  • Who require an average of 45-units per day from solar.
  • With an average bill size of $600 - $1000 p/bi-monthly bill cycle.
  • Who can consume 50% or more of their electricity during the day.

Searching for something specific? Discover PSW’s Bunbury Ultimate Buyers guide for:  LG Solar, REC, QCells, Jinko, LONGi, Suntech, Risen, Canadian Solar, Trina, SMA, Fronius, Huawei, Goodwe, Enphase and SolarEdge.

PSW are Bunbury's solar


Solar Batteries Bunbury region WA.

When you need the full solution, you deserve the dependable solar batteries Bunbury region shoppers are demanding. 

PSW stock only the trusted big-name battery brands; Tesla, Huawei, LG Chem, Alpha ESS, Soluna, SENEC, Soltaro and BYD available now!

Now is the time to


Unbeatable Deals

The best solar and battery deals Bunbury region customers love offer the best value. Get more for every dollar spent at Perth Solar Warehouse.

Prefer a custom solution or a payment plan? Get in contact with the friendly PSW technical sales support staff today.

Happy customer Nellie McKay Review in regards to PSW vs The REst

Thank goodness for PSW. After 2 months of disappointments from other Solar companies who just didn't want to know us when we needed to upgrade our consumer line to enable our 6.5kW system - "come back when its all ready to have your solar installed". PSW just took the bull by the horns and ran with it - making the necessary contacts with Western Power and co-ordinated them to come out in conjunction with our PV install. The install team were so pleasant and more to the point efficient - nothing was too hard for them. Penny-Lee your professionalism and efficiency were exemplary in all the organizing with Western Power -even calling me up at 8 pm at night to keep me informed of progress - thanks so much. Derek your guidance in the type of system perfect for us was much appreciated. All this and at a great price too. Hats off to you all at PSW - keep up the good work. We now watch our smart meter via our portal just pumping out the power.

Nellie Mackay

- Harvey

Happy Bunbury Customer Jayden by Perth Solar Warehouse
The ease of the process from quotes through to installation was a breeze great company to deal with highly recommend to anybody.

Jayden Wright

- Dalyellup

Happy Customer from Truck Centre Review for 10kW Solar Deals
I have now used PSW for solar installs on two commercial buildings and on my own home, I am extremely happy with their work.

David Shore / Truck Centre WA

- Picton

Born & Bred


It's a PSW thing.

Not all local support is created equal. PSW Life Support is there for you 365 days a year, staffed by 100% West Australian local personnel.

Even throughout traditional holiday periods, your energy requirements are 24/7, therefore, we are here for you when you need us with friendly, after-care support when you need it.

No matter your Bunbury region postcode, PSW services the greater Bunbury suburbs including; Peppermint Grove, Dalyellup, Eaton, Carey Park, Boyanup, Australind, Waterloo and everywhere in between.

Discover the difference: PSW vs the rest >

Frequently Asked Questions

The most common solar rebate (Subsidiy) for Bunbury region customers in 2021 based on a $36 STC valuation and utilising a 370W solar panel variant for multiplication is as follows:

  • 3.7 kW = $1841
  • 6.6 kW = $3313
  • 10.3 kW = $5154
  • 13.3 kW = $6627
For more about the Bunbury region solar rebate in overwhelming detail including what are STC’s?  Click here >

PSW services more than just the immediate Bunbury area. PSW is the home of the best batteries and solar panels Bunbury REGION customers love. 

Therefore, everyone in the suburbs listed below can enjoy the PSW advantage;

  • 6218, Yarloop.
  • 6219, Cookernup.
  • 6220, Warawarrup.
  • 6220, Harvey.
  • 6220, Myalup.
  • 6220, Uduc.
  • 6221, Mornington.
  • 6223, Benger.
  • 6224, Beela.
  • 6224, Brunswick Junction.
  • 6225, Collie.
  • 6226, Roelands.
  • 6227, Burekup.
  • 6228, Waterloo.
  • 6229, Picton.
  • 6230, Bunbury.
  • 6230, Pelican Point.
  • 6230, Carey Park.
  • 6230, College Grove.
  • 6230, Dalyellup.
  • 6230, Davenport.
  • 6230, East Bunbury.
  • 6230, South Bunbury.
  • 6230, Usher.
  • 6230, Vittoria.
  • 6232, Eaton.
  • 6232, Millbridge.
  • 6233, Australind.
  • 6233, Binningup.
  • 6233, Leschenault.
  • 6233, Wellesley.
  • 6236, Dardanup.
  • 6236, Wellington.
  • 6237, Boyanup.
  • 6271, Peppermint Grove Beach.
  • 6271, Capel.
  • 6280, Ludlow.
Phew, that was a long list, but worth it. We love all of ya’ll!

If you qualify for Synergy’s Distributed Energy Buyback Scheme (DEBS) Bunbury region customers can receive 0.03c ex GST during off-peak and 0.10c ex GST during peak periods (3pm to 9pm) for each unit (kWh) exported by your solar energy system.

Eligibility criteria and full pricing, learn more >


The current installation wait time varies depending on what it is, in particular, you are wanting to be installed. Why is this? Quite often it’s related to engineering assessments by Western Power.

Below is a breakdown of the average lead times for the following PSW services within the Bunbury region:

  • Inverter replacements: within 1-week.
  • Solar PV install: within 4-weeks (peak period 8-weeks).
  • Battery install: within 4-weeks (peak period 8-weeks).
  • Solar & Battery install: within 4-weeks (peak period 8-weeks).


PSW is a registered electrical business in Western Australia. As a McKercher Corporation Pty Ltd business (EC010771) PSW utilises an in-house electrical service team insured and licensed to perform electrical services on your property within the greater Bunbury area.


PSW supplies fully installed products only direct to Bunbury region end-users.

Western Power doesn’t allow single-phase solar inverter capacity greater than 5kW output. Synergy excludes solar inverter capacities which exceed 5kW output capacity from the Distributed Energy Buyback Scheme on the greater Bunbury region grid.

As solar panels rarely reach peak rated power, certain solar inverter manufacturers state that their inverters can be overloaded by up to 50%.

However, the Clean Energy Regulator has had their say on this topic and capped oversizing to 33%. Therefore, 5kW Inverter capacity x 1.33 = 6.6kW of solar panels.

Oversizing solar inverters explained in glorious detail >

Perth Solar Warehouse and PSW Energy are registered businesses of the same legal entity for warranty and historical purposes.

In a nutshell,  PSW Energy has been established (from 2017) to offer renowned Perth Solar Warehouse products and services to a broader market (because the people of Bunbury and beyond deserve a competitive, quality solar alternative also).

As mentioned on the PSW Energy website “PSW Energy is the evolution of Perth Solar Warehouse established to service a broader market. For further company contact information, PSW Energy is a McKercher Corporation Pty Ltd Trustee for Derek McKercher Family Trust business ABN: 55 332 185 818, ACN: 164 130 581 founded (2004) as McKercher ECS.

Therefore, customers are encouraged to explore both websites for access to the entire Perth Solar Warehouse range.

Jeremy E

Very happy with my PSW Solar system. Derek was very knowledgeable & helpful with all my queries. Moly, Penny-Lee and all the other office staff were always quick to respond to emails & phone calls. Most importantly now the weather is heating up my savings are increasing, my last bill was practically just a supply charge with less than $10 for power consumption. Have already recommended PSW to others and will continue to do so. Thanks!!

Jeremy E

- Google

Get your copy of the latest Perth Solar Warehouse price list now.

Please note: PSW Energy supply fully installed products only. Your details will not be forwarded to third parties or used for spamming purposes. Your copy of the latest PSW Energy pricelist will be delivered by email. FALSE, INCOMPLETE or MISLEADING submissions

Your price in a few questions.

Perth Solar Warehouse values your privacy, as our privacy policy states, your details will be used for the purpose of this quote only and will not be forwarded to third parties or used for spamming purposes.

Please note: Perth Solar Warehouse supply fully installed products only in Western Australia (Perth & Bunbury region). FALSE, INCOMPLETE or MISLEADING submissions will be ignored.