20kW Commercial Solar System | Solar Experts | Infinite Energy

20kW Commercial Solar PV System

A 20kW commercial solar PV system is ideal for businesses with low to medium energy usage, who receive annual electricity bills of around $10,000+. 

Quick Overview:


Average cost:

$21,000 – $35,000


Number of panels:

70 – 80

Power generated:

80 – 90 units per day


How much can I save?

$6,000 – $10,000 annually

Average payback period:

3 to 5 years


Suited to:

Businesses with low to medium energy usage, who receive annual bills of around $10,000. 

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How much does a 20kW commercial solar PV system cost?

A 20kW solar PV system comprised of quality components costs anywhere between $21,000 – $35,000. The cost will depend on the brands you select for your solar system.

How big is a 20kW commercial solar PV system?

A 20kW solar system has around 70 to 80 panels. Each panel measures around 1.6m x 1m, so you’ll need at least 128m2 of roof space.

How much power does a 20kW commercial solar PV system generate?

On average, a 20kW solar system generates 80 to 90 units per day. For a small to medium sized business like the Willetton Bowling Club, this covers 50% of their electricity consumption.

How much can a 20kW commercial solar PV system save me?

How much money you get back from your solar system will depend on how much electricity you’re able to utilise at your business. Operating at 85% utilisation, Upper Reach Wine’s 20kW solar PV system will save them $8,600 annually.
If you’re able to utilise even more of the solar energy your system generates, this figure could be even higher.

What’s the average payback period of a 20kW commercial solar PV system?

A good quality 20kW system will deliver a full return on investment within 3 to 5 years.
Plus, by taking advantage of one of Infinite Energy’s many finance options, like Solar Leasing, you can remain cash flow positive from day one.

What kind of business does a 20kW commercial solar PV system suit best?

This system’s great for businesses and organisations on the small to medium side. We’ve installed 20kW systems at Midland Orthodontic, Dandaragan General Store, and Great Northern Highway Trust, to name just a few.

To find out if a 20kW system is the right fit for your business, request a callback with one of our expert energy consultants.

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To arrange a no obligation consultation at your home or office:

Partners & Sponsorships

Approved RetailerClean Energy Council
Authorised ResellerTesla Energy
Premier PartnerSunpower

Brands We Carry

ABB Fronius SOLAREDGE SunPower Midea Apricus SMA

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