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3 kW Solar

3 kW Solar is the new 4 kW solar system. Why? 3.9 kW is the largest system configuration available on a 3 kW inverter while generating a very similar output (kWh) to a 4 kW solar system at a lesser price!
3kW Solar System by Energy Featured Image

GENERATE.

Your Ideal 3 kW Solar System

Choose a 3 kW solar energy system that suits you. All PSW 3 kW solar packages generate on average 15 units per day. That’s your energy-saving potential.

Get the best 3 kW solar deals. Here’s your copy of the latest catalogue ›

1. Choose 3.7 kW of solar panels

Factors influencing your ideal solar panel selection are; (1) Budget, (2) Warranty, (3) Technology and (4) Available roof area. When you’re ready, we’re here to help with a 3.7 kW solar system that suits you. Alternatively, compare solar panels ›

Quote requests automatically receive a copy of the latest catalogue with up-to-date quantities at promotional prices for exclusive distribution to Perth & Bunbury region customers. Strike-through prices are further reduced with availability regulated within the latest catalogue.

2. Select a 3 kW inverter

Due to reduced demand, 3 kW inverter options have been reduced. The great news is that these three options are regarded as some of the most dependable. Compare inverters ›

Goodwe DNS Inverters Batteries by Perth Solar Warehouse

Goodwe

Nominated price – included*

Sungrow Hyrbid Single Phase Inverters by Perth Solar Warehouse

Sungrow

price +$200*

Fronius Primo Inverters by Perth Solar Warehouse

Fronius

price +$1000*

Your

NEXT.
STEP.

Make sure the above prices are our best

3 kW solar energy systems made simple with Perth Solar Warehouse.

3. Consider a battery

Combine any 6.6 kW solar system with a solar battery for the ultimate in bill reduction success. You’re buying a 6.6 kW solar system to do a job, make sure it does the whole job with a battery. Compare batteries ›

Experience 3 kW

SOLAR.
BLISS.

It's a Perth Solar Warehouse thing

More than the best 3 kW solar deals Perth customers seek. With PSW Life Support, we care about your ongoing experience. 

Customer experience

Amanda V 3kW Solar System Review

Very professional. I chose this company as it was WA based and had competitive prices with very good customer service. From start to finish the process was easy very minimal hassle all questions were answered in a timely manner. Installation went without a hitch and the guys did a good job tidying up after themselves. I would highly recommend this company. 

Amanda Veitch

- Google

Amanda V 3kW Solar System Review

Very professional. I chose this company as it was WA based and had competitive prices with very good customer service. From start to finish the process was easy very minimal hassle all questions were answered in a timely manner. Installation went without a hitch and the guys did a good job tidying up after themselves. I would highly recommend this company. 

Amanda Veitch

- Google

Trevor Smiths 3kW Solar System Review

We are very pleased with our decision to get our solar system from PSW.
The whole installation process was quick and painless and has been working perfectly all year. We run ducted reverse cycle air con and I used to have a standing order with Synergy for $150 a month, this has been reduced to $20 a month and covers our bills. So approx savings are $1560 per year which means the payback period for the system is less than 3 years for us. I would love to get a battery for the system when the prices come down in the future.

Trevor Smith

- Google

Craig Van Der Laan 3kW Solar System Review

A very easy and stress-free experience. Once I contacted PSW the whole process ran smoothly. There was no pressure to sign-up, all relevant information was sent to me and I was left to make my decision. The date was booked in and the system was installed without any issues. My roof faces East-West but PSW were able to install the system to still make full use of the conditions. Started producing power immediately. Have already recommended PSW to friends and will continue to do so.

Craig Van Der Laan

- Google

Google and SolarQuotes 4.9/5. PSW ranking 2023 ›

Frequently questions; 3 kW solar

3 kW solar inverters are often more cost-effective and in greater abundance than 4 kW solar inverters.

In addition, as solar panels often rarely reach peak-rated power, many reputable inverter manufacturers state that their inverters can be overloaded by up to 50% of the nominated input capacity.

The Clean Energy Regulator has had its say on this topic and capped oversizing to 33%.

Therefore, 3 kW Inverter capacity x 1.33 = 3.9 kW of solar panels and adding one more solar panel will exceed this limit.

Internal post: Oversizing Solar Arrays on Inverters Increases Savings Potential ›

This depends on you. A 3.9 kW solar energy system with a 3 kW inverter will generate an annual average 15 units (kWh) per day.

However, each dwellings consumption profile is unique, as unique as your finger print.

Sales support can provide detailed bill reduction estimates based on your past energy usage patterns. By using advanced software, the more past power bills you provide the more accurate your bill reduction estimate is likely to be.

Yes. However, as with all 3 kW solar systems, battery choices are limited. For example, if the only battery you want to install in the future is a Tesla Powerwall (AC coupled), then selecting any standard inverter will work.

Although, should your preference be a Sungrow SBR (DC coupled), a hybrid Sungrow solar and battery inverter, the such as the Sungrow RS HS inverter.

Eligible Perth and Bunbury region customers within STC Zone 3 receive a $1569 point of sale discount (subsidy) when installing 3.7 kW of solar panels on a 3 kW inverter.

Based on 41 claimable Small Technology Certificates, a system incorporating 9 x 415 W solar panels and a $38 STC market value.

41 STC’s x $38 value = $1569 subsidy.

For your convenience, the Perth Solar Warehouse 3.7 kW solar package prices include the subsidy already deducted as a point of sale discount (redeemable by Perth Solar Warehouse after installation).

Most residential 3.7 kW solar arrays installed on a 3 kW inverter will qualify for the Synergy’s solar Feed-in Tariff named; DEBS (Distributed Energy Buyback Scheme).
 
This means you can receive 0.025c ex GST during off-peak and 0.10c ex GST during peak periods (3pm to 9pm) for each unit (kWh) exported to the grid by your solar energy system.
 

View the Perth Solar Warehouse Installation Zone 1 service area map, including happy customers near you (dot pointed).

Satisfy your curiosity, view map ›

*Conditions:

1. Structure: The listed prices refers to single-level, single-phase and single roof face dwellings with adequate switchboard accessibility/provisions available to accommodate the additional circuitry and its associated components. Additional installation costs may apply, inquire or learn more via PSW Energy (affiliate business).

2. Product/ package: The base nominated price uses a Goodwe DNS (3 kW) inverter within PSW Installation Zone 1 after the STC zone 3 subsidy has been deducted as a point of sale discount. To ensure this package meets desired expectations, additional installation costs may apply, inquire or learn more via PSW Energy (affiliate business).

3. Generation figures are general only, based on historical Zone 3 annual average irradiance data. Figures may not represent precise daily generation data. Customers should obtain site-specific average generation data for their particular system size and solar orientation. To obtain this information, contact sales support.

Continue researching with PSW insights

Important: This form takes approximately 15 seconds to process thoroughly. Perth Solar Warehouse supplies turnkey products in Western Australia (Perth & Bunbury region). 

Solar package catalogues include battery and EV charger options. If uncertain about which solar catalogue to select, 6.6 kW is a great place to start.

Important: This form takes approximately 15 seconds to process thoroughly. Perth Solar Warehouse supplies turnkey products in Western Australia (Perth & Bunbury region). 

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Hassle-free workplace electric vehicle charging. Save up to 50%.

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Your quote for a hassle-free commercial solar system begins here.

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Your interest-free solar price in a few questions.

Important: This form takes approximately 15 seconds to process thoroughly. Perth Solar Warehouse supplies turnkey products in Western Australia (Perth & Bunbury region).