At the beginning of September 2012, the average price per watt of an installed solar system in Australia was around $2.30 after subtracting the Federal Small-scale Technology Certificate (STC) ‘rebate’, according to data from Solar Choice’s installer network database, based on the prices on offer from installers operating in Australia’s major capital cities (excluding Darwin and Hobart).

Price per watt by city and system size

The overall average price per watt was lower with larger systems. Whereas the average price of 1.5kW and 2kW solar PV systems were both about $2.40, 3kW and 4kW systems checked in at less than $2.30, whilst 5kW systems offered the best value for money at $2.18.

Solar Choice PV system Price per watt Sept 2012 Solar Choice PV system Price per watt Sept 2012. (Click to enlarge.)

Installed system prices by city and system size

Melbourne was consistently the most expensive city in which to buy a system, regardless of size. This could be due to the announcement of a deadline to apply for Victoria’s current Feed-in Tariff rates, which has created a (relatively mild) rush to install and resulted in a seller’s market where installers can be selective about which customers to take on. By contrast, Sydney (where no state-mandated Solar Feed-in Tariff currently exists) was home to some of the lowest system prices in the nation, although occasionally rivaled by Canberra.

Solar Choice Solar PV System Prices Sept 2012 Solar Choice Solar PV System Prices Sept 2012. (Click to enlarge.)

System price highs and lows

System prices varied significantly. Low-end prices for systems of all size ranges came in at well under $2/watt. Dearer systems were over $4.

Chinese panels clearly dominated low- and medium-priced systems across all size ranges. European and Korean panels could usually only be found among the pricier systems. By comparison, European- (and occasionally NZ-) made inverters were frequently seen found at low, medium, and high price points for all system sizes. Low-cost 1.5kW systems were more likely to have a Chinese inverter than other system sizes.

There was no 1.5kW system on offer that included Australian-made panels, but for all other system sizes, those that incorporated these home-grown products came with the biggest price tag.

Solar Choice Solar System Price Highs and Lows Solar Choice Solar System Price Highs and Lows. (Click to enlarge.)

Average STC discounts

STCs are a type of renewable energy ‘currency’ created under the Federal government’s Renewable Energy Target. When commissioned, solar systems in sunnier regions are allocated a greater number of STCs, whilst those in less sun-blessed areas (such as Victoria and Tasmania) receive fewer.

STC value varies according to supply and demand. In most cases, installers themselves assume the liability these price fluctuations and pass the value on to customers in the form of a discount off the up-front cost of a system. Depending on how much of the liability they are prepared to take on (as well as on other aspects of their pricing structure), different installers routinely offer differing nominal amounts per STC.

The average STC price offered by installers across the country at the beginning of this month was around $26. On the high end, 4 installers offered $31 per STC, and 1 offered $32. The least offered was $21 per certificate (1 installer), and the most commonly appearing value was $25. Only 1 installer promised a ‘market rate’ for STCs. (Offered STC value can be cross-checked with the current STC spot price on the Clean Energy Council website.)

(N.B. Not all installers explicitly disclose the STC discount they offer, instead selling ‘packaged’ systems with the amount inclusive in the final total. The average STC discounts below are based on figures from those installers who do include this information.)

Solar Choice Price Index STC discounts Sept 2012 Solar Choice Price Index Average STC discounts Sept 2012. (Click to enlarge.)

About this data

All figures are based on the offerings of active installers on the Solar Choice installer network for each of the 6 major capital cities. The system prices above do not reflect the average prices at which systems are ultimately purchased.

About Solar Choice

Solar Choice works with 100 solar PV installers in providing free and impartial Solar Quote Comparisons for customers throughout Australia. Solar Choice Commercial manages tenders for a wide range of commercial-scale solar PV projects throughout Australia, including solar farms and utility-scale solar PV plants.

More detailed analysis of this month’s figures (and more) is available through SunWiz.

© 2012 Solar Choice Pty Ltd

James Martin II

James Martin II

James has been Solar Choice's analyst and communications manager since 2010. He is Solar Choice's primary writer, and is responsible for composing Solar Choice's monthly Solar PV Price Index articles.
James Martin II

{ 5 comments… read them below or add one }

Photomofo September 15, 2012 at 5:36 pm

Bravo!!!

Reply

Judy Micklewright September 14, 2012 at 2:52 pm

Are there any plans to include Tasmania (Hobart) in the Price Index?
Regards,
Judy

Reply

Solar Choice September 14, 2012 at 5:33 pm

Hi Judy!

Thanks for the excellent question! We’ve been seeing a lot of interest coming from Tasmania as of late, but at the moment we haven’t got enough installer in our network in Hobart/Tasmania to warrant including it in the index. We are hoping to grow our network in Tasmania, and once we’ve done so will start including Tasmanian installer prices as well. Keep an eye out!

Reply

Paul Enticknap September 14, 2012 at 1:48 pm

Hi,
I’ve just had an installer give me a quote for a 3kvh system,when I queried the high cost he explained the the very cheap systems required me to sign away the feed in tariffs to to the installing company.
Has anybody else come across this?
Regards Paul

Reply

Solar Choice September 14, 2012 at 3:27 pm

Hi Paul,

We haven’t come across this before. Unless you asked about a Solar Leasing Scheme, which is only available in selected areas of New South Wales and Queensland, you would receive the benefits of any incentives in your area regardless of the cost of the system. Although Solar Choice doesn’t recommend a particular brand or company we do suggest that customers don’t necessarily go for the cheapest option without doing some additional background research.

I can see you completed the Solar Quote Comparison today and have confirmed that we havent contacted you about this as yet. Was the installer who called you a member of our network or someone you had been in touch with previously?

If you want speak directly to one of our Solar Energy Brokers about your quote call 1300 78 72 73, or we will contact you in due course.

We look forward to hearing from you.

Reply

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