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6.6 kW Solar

6.6 kW Solar systems are the ideal size for most 2-5 person Perth homes. Why? 6.6 kW is the largest solar array permitted on a 5 kW inverter without batteries.
6.6kW Solar System by PSW Energy Featured Image

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Build your ideal 6.6 kW solar system and save

Your house is different from your neighbours. So why should your 6.6 kW solar energy system be the same?  6.6 kW solar systems generate on average 30 units per day. That’s your energy-saving potential, but at Perth Solar Warehouse, you choose your ideal 6.6 kW solar product combination. From $2990.

Get the best 6.6 kW solar deals. Here’s quick access to our latest catalogue ›

1. Choose 6.6 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 6.6 kW solar system comprised of leading brand technology that suits you. Alternatively, compare solar panel tech specs side-by-side.

We understand customers prefer to supply different levels of information. Quote requests (more information) automatically receive a copy of the latest catalogue (less information) with our most up-to-date promotional pricing: Perth & Bunbury, Western Australia customers. 

2. Select a 5 kW inverter

Your solar inverter is the heart of your new energy ecosystem. Limited by 5 kW output power, we’re making more hybrid inverter options available so you can add more battery options for less when you’re ready. Compare inverters ›

SAJ Inverter by Perth Solar Warehouse

SAJ

price included

Solar only (AC battery)

Growatt Inverters by Perth Solar Warehouse

Growatt

+$200

Hybrid (AC & DC battery)

Goodwe EH+ Hybrid Inverter

Goodwe

VALUE +$300*

Hybrid (AC & DC battery)

SMA Sunny Boy Inverter Replacements by Perth Solar Warehouse

SMA

+$600*

Solar only (AC battery)

Sigenergy Sigen Hybrid Inverter

Sigenergy

LATEST +$800*

Hybrid (AC & DC battery)

Fronius Primo Inverters by Perth Solar Warehouse

Fronius

 +$1200*

Hybrid (AC & DC battery)

Make sure the above prices are our best:

There’s a reason we are one of Perth’s most proven solar installers. Perth Solar Warehouse makes buying 6.6 kW solar energy systems transparent and user-satisfying, uncomplicating two decades of arduous adoption. We make solar simple through a digitally enhanced, yet personal buying and support experience. Proven. Local. Since 2004.

3. Consider a battery

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

Experience 6.6 kW

SOLAR
BLISS

A more secure guarantee. It's a Perth Solar Warehouse thing

More than the best 6.6 kW solar deals Perth customers seek. We’re locals like you with a genuine investment in your journey towards an electrification shift as you need. Every 6.6 kW solar energy system by Perth Solar Warehouse is a commitment to enduring energy savings and our community with 20 years of local business operation as your proven guarantee.

Beyond manufacturer warranties, Perth Solar Warehouse installed 6.6 kW solar packages enjoy a leading 15-year workmanship guarantee, offering greater peace of mind as a quality sustainable energy solution. Proven. Local. Since 2004.

Customer experience

I have been looking to get solar for quite a while. I spoke with over 20 companies for quotes and to discuss what I needed. PSW, was the most proffessional, most customer friendly and most knowledgeable of all of them. Jesse was outstanding and very knowledgeable. From the office people to the technicians working at my property, all were very professional and friendly. Did a great job. Thank you all. I will make sure to recommend you guys to families and friends. Keep up the good job.

Ahumud Mahamoodally

- Google

Ahumud Mahamoodally Review for Solar Battery System by Perth Solar Warehouse

I have been looking to get solar for quite a while. I spoke with over 20 companies for quotes and to discuss what I needed. PSW, was the most proffessional, most customer friendly and most knowledgeable of all of them. Jesse was outstanding and very knowledgeable. From the office people to the technicians working at my property, all were very professional and friendly. Did a great job. Thank you all. I will make sure to recommend you guys to families and friends. Keep up the good job.

Ahumud Mahamoodally

- Google

Alison Bartlett Happy Customer of a 3kW system

Fantastic service from start to finish. The installation team were friendly, tidy and very professional. So impressed with the system installed and the Tesla battery – the app clearly shows all that is happening with our system.

Alison Bartlett

- Google

Alison Bartlett Happy Customer of a 3kW system

Fantastic service from start to finish. The installation team were friendly, tidy and very professional. So impressed with the system installed and the Tesla battery – the app clearly shows all that is happening with our system.

Alison Bartlett

- Google

Kellie B. Review for Solar Battery System by Perth Solar Warehouse

From start to finish, the process was easy and smooth, from Jesse, who quoted and was super patient with our many questions, to the team in between and the installers. Thanks again.

Kellie B

- Google

Kellie B. Review for Solar Battery System by Perth Solar Warehouse

From start to finish, the process was easy and smooth, from Jesse, who quoted and was super patient with our many questions, to the team in between and the installers. Thanks again.

Kellie B

- Google

Perth Solar Warehouse Awards and Recognition 2024: NETCC Approved Seller logo, SolarQuotes.au Legendary logo, EUPD Research Top Brand iInstaller 2023 logo and SunWiz TOP 5 Combined Commercial and Residential volume Award Western Australia 2024

Google and SolarQuotes 4.9/5. PSW ranking ›

Frequent questions: 6.6 kW solar

Western Power doesn’t allow single-phase solar inverter sizes greater than 5 kW output. Synergy excludes solar inverter sizes that exceed 5 kW output capacity from the Distributed Energy Buyback Scheme

Most leading inverter brands state that their inverters can endure solar array oversizing by up to 50%. The Clean Energy Regulator has had its say on this topic and capped the oversizing of solar inverters to 33% without a battery.

Therefore, 5 kW Inverter capacity (5) ÷ 0.75 = 6.66 kW of solar panels.

Increase savings potential and improve system efficiency by overdriving your inverter ›

This depends on you. A 6.6 kW solar energy system with a 5 kW inverter will generate an annual average of 30 units (kWh) per day, but we can estimate maximum saving potential through historical irradiance data and Synergy tariff prices.

Therefore, consider a maximum energy saving potential: The ability to consume the maximum annual estimated yield on a Northern roof aspect (0°) with a 25° roof pitch, located in Perth (6000) and environmentally derated to 70% generation potential, your energy savings substituting the Synergy Home Plan A1 tariff in 2024/25 of 30c per kWh would be similar to: 

6.6 kW = $2290

The above is a maximum saving potential using a general (central) installation profile to assist in determining a best-case return on investment in annual energy savings.

Suppose you choose to opt out of a battery. In that case, these savings reflect unobstructed daylight hours within a variable solar bell curve period, 8 am to 5 pm, and are presented as unit-for-unit savings, which may not directly reflect bill savings.

It’s important to note that every installation is unique and requires a location-specific energy yield report for more solid investment decision-making. We’ve made getting your free yield report easy. Request a noninvasive express quote, and we’ll send your complimentary energy yield report.

Yes. As with all 6.6 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 (solar only) inverter will work.

Although, should your preference be a Goodwe Lynx Home F (DC coupled), a compatible hybrid solar and battery inverter such as the Goodwe EH+ inverter is required.

Using a $38 STC (Small Technology Certificate) valuation and 440W solar panel size for multiplication, the solar rebate you can access in the Perth and Bunbury region of Western Australia for common solar energy system sizes is as follows:

  • 6.6 kW = $2,426 – 2024 installation
  • 6.6kW = $2,088 – 2025 installation

For your convenience, advertised Perth Solar Warehouse 6.6 kW solar package prices include the subsidy already deducted as a ‘point of sale discount’ (redeemable by Perth Solar Warehouse after installation to recover the total system cost).

If you would like to take advantage of the current year 2024 solar rebates, Perth Solar Warehouse provides a hassle-free, noninvasive express quote for your convenience.
 

Learn more: Your solar rebate amount ›

Most residential 6.6 kW solar arrays installed on a 5 kW inverter will qualify for the Synergy solar feed-in tariff named; DEBS (Distributed Energy Buyback Scheme). This means you can receive:
 

2c ex GST: off-peak

10c ex GST: peak (3 pm to 9 pm)

2024/25 Synergy solar feed-in tariff update ›

As wholesale energy values vary at different times of the day, the Distributed Energy Buyback Scheme values your excess solar energy with the energy available in the grid at a nominated time. A two-cent valuation during higher ambient light periods reflects a surge of wasted solar power to the grid by a high-volume accumulated number of dwellings exporting simultaneously.

Solar energy is most valuable when used directly or stored in a battery for later use. If eligible, the Synergy Distributed Energy Buyback Scheme will only favour your energy bill in a reduced capacity.

Explore: Proven battery technologies by Perth Solar Warehouse ›

Based in Bibra Lake, Perth Solar Warehouse installs home/business solar and battery systems from Yanchep (North) to Bunbury (South), Fremantle (West) to Northam (East), and most regions in between.

View the Perth Solar Warehouse 6.6 kW solar installation zone, including customer map; Installation Zone ›

*Conditions:

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

2. Product/ package: The base nominated price uses an SAJ R5 (5kW) inverter within the PSW Installation Area after the STC Zone 3 subsidy has been deducted as a point-of-sale discount. Additional installation costs may apply to ensure this package is compatible with your property. 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.

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