From the category archives:

Solar system sizes

Residential Solar PV Price Index – October 2017

October 17, 2017
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Average solar system prices hold stable for the third month in a row, with the average price per watt ($/W) for an residential solar system installation coming in at about $1.44/W. The most popular and best value solar system size is still 5kW, costing about $1.14/W or $5,700 for a fully installed system. (Due to […]

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What if you sent all of your solar into the grid? Is it worth it?

September 29, 2017
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If you’ve got solar, the way to maximise your electricity bill savings these days is to use your solar energy directly within your home (or business). From an investment point of view, the conventional wisdom is that the worst thing you could do with the solar energy that your roof produces is to send it […]

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Solar system size limits: How much does your local network allow?

September 20, 2017
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What’s the upper limit to the amount of solar panel capacity that you can put on your roof? This is actually a multi-layered question that involves your roof area, your energy saving goals and any applicable restrictions imposed by your local electricity network company. This article touches on all these factors, but focuses mainly on […]

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Residential Solar PV Price Index – September 2017

September 5, 2017
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Average residential solar system prices are roughly on par with last month’s figures – about $1.43 per watt for a fully installed system. 5kW systems continue to offer the best value for money, at about $1.13/W, or about $5,600. Average solar PV system prices for September 2017 Prices in the table below include both the […]

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Commercial Solar PV Price Index for September 2017

September 5, 2017
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Average commercial solar system prices continue to hover around $1.20 per watt for the month of September, following an STC-driven increase between July and August. Commercial solar system prices (10kW-100kW) All prices in the tables below include incentives available through the federal Renewable Energy Target as well as GST, but do not incorporate meter installation fees […]

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Commercial Solar PV Price Index for August 2017

August 24, 2017

August saw a slight increase in average commercial solar system prices as compared to July, due to a combination of price modifications due to changes in the value of STCs as well as slight changes to the composition of our network of installers. Commercial solar system prices (10kW-100kW) All prices in the tables below include […]

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Solar energy self-consumption explained

August 23, 2017
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When it comes to solar power in Australia, lots of things have changed in the last few years. If you’re currently shopping around for a solar system, perhaps the most important thing you need to keep in mind is this: You’ll get the most out of your solar panels by consuming the energy they produce while it […]

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Residential Solar PV Price Index – August 2017

August 3, 2017
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Average residential solar system prices have risen slightly following two consecutive months at their lowest levels since Solar Choice began keeping track in August 2012. This month’s higher average price – $1.55 per watt, as opposed to $1.45/W last month- is undoubtedly due at least in part to the recent drop in STC values and […]

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Commercial Solar PV Price Index for July 2017

July 24, 2017
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Average commercial solar system prices remain mostly unchanged at about $1.19 per watt ($1.19/W) between June and July 2017. Commercial solar system prices (10kW-100kW) All prices in the tables below include incentives available through the federal Renewable Energy Target as well as GST, but do not incorporate meter installation fees or additional costs, such as ground-mounting, […]

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STC prices are falling: What you need to know

July 20, 2017
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‘The federal solar rebate is falling!’ is a cry that Solar Choice has been hearing pretty loudly from our customers, website visitors and installers in and outside our network for the past few days. From a customer’s perspective, what do you need to know about what’s happening with this government solar incentive? Understanding the federal STC […]

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Residential Solar PV Price Index – July 2017

July 12, 2017
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Average residential solar system prices for July remain mostly unchanged since June’s big shakeup, hovering at $1.34/W. 5kW solar systems continue to offer the best value for money, and Perth is still the city with the lowest average prices. Average solar PV system prices for July 2017 Prices in the table below include both the up-front […]

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Commercial Solar PV Price Index for June 2017

June 21, 2017
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Average pricing for commercial-scale solar systems has dropped to $1.19 per watt ($1.19/W) from $1.23/W following some shakeups in the Solar Choice installer network (see notes in our Residential Solar PV Price Index for this month). Average 10kW system prices sit at $1.27/W, 30kW system prices at $1.19/W, 50kW system prices at $1.20/W and 100kW solar […]

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Residential Solar PV Price Index – June 2017

June 21, 2017
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This month saw one of the sharpest drops to average system prices since Solar Choice first began keeping track in August 2012. Between May and June, the average system price dropped 23c from $1.57 per watt ($1.57/W) to $1.34/W. This sudden decrease stands in sharp contrast to the very gradual changes that we’ve seen over […]

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3kW solar PV systems: Pricing, output, and returns

June 5, 2017
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How much does a 3kW solar system cost in Australia, and how much energy can you expect it to produce? This article takes a look a these questions, as well as returns and payback periods for 3kW solar systems. (This article was originally published in 2012 – we’ve recently updated it to reflect how circumstances […]

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Can you go off the grid with a 10kW solar system plus battery storage?

May 16, 2017
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We previously wrote an article about the feasibility of an Australian home going off-grid with a 3kW solar system – quite a small system size for such an ambitious endeavour. In this article, we’ll look at the case for going off-grid with a 10kW solar system – the unofficial upper limit for residential solar system […]

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3kW vs 5kW solar system: Which is a better investment?

May 15, 2017
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One of the first decisions a household considering solar will need to make is the capacity (in kilowatts, kW) of the system to be installed. Two of the most popular residential solar PV system sizes in Australia are 3kW and 5kW. Which system size is the better investment – and why? You’ll save the most […]

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Residential Solar PV Price Index – May 2017

May 11, 2017
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Average solar system installation prices for May 2017 hover at the same level as April‘s – $1.57 per watt ($1.57/W). 5kW solar systems continue to offer the best value for money at an average of $1.25/W – or about $7,100 installed. Average solar PV system prices for May 2017 Prices in the table below include both the […]

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Commercial Solar PV Price Index for May 2017

May 11, 2017
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Average commercial solar system prices remain unchanged for the second month in a row, coming in at $1.23/W, according to pricing from the Solar Choice commercial installer network database. Average 10kW system prices sit at $1.32/W, 30kW system prices at $1.21/W, 50kW system prices at $1.23/W and 100kW solar system prices at $1.15/W. Commercial solar […]

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Solar Power in NSW: What are the benefits?

May 1, 2017
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Solar power is still a great investment in NSW even in the absence a feed-in tariff incentive in the state. The fact that solar PV system prices have been declining combined with the fact that retail electricity rates have risen significantly in recent years means that solar panels can now serve as a cost-effective, rooftop […]

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Sizing residential solar & battery systems: A quick guide

April 26, 2017
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What size solar panel array do you need for your home? And if you’re considering battery storage, what size battery bank would be most appropriate? This article includes tables that provide an at-a-glance guide, as well as links to more comprehensive calculators. Solar system sizing table (no batteries) If you’re considering solar panels for your […]

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Commercial Solar PV Price Index for April 2017

April 11, 2017
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Average commercial solar system prices increased slightly between March and April, according to data from the Solar Choice installer network. The rise – up to $1.23/W from $1.21/W – follows several months of steady decreases. Commercial solar system prices (10kW-100kW) All prices in the tables below include incentives available through the federal Renewable Energy Target […]

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Solar power in Sydney, NSW: Compare prices & installers

April 11, 2017
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Sydney is a great place for solar power, and roughly 10-15% of Sydney area homes have solar panels installed on their roofs. This article is 5-point guide to everything you need to know if you’re considering solar power for your Sydney home – including how Solar Choice can help you compare quotes. 5 good reasons to go solar […]

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Residential Solar PV Price Index – April 2017

April 10, 2017
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Average residential solar system prices for April 2017 have crept to a fresh low of $1.57 per watt ($1.57/W) – slightly lower than March‘s average of $1.58/W but in keeping with the (very) gradual decline that we’ve been witnessing since the beginning of 2017. Average prices for 3kW, 4kW and 5kW solar systems also hit […]

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Commercial Solar PV Price Index for March 2017

March 31, 2017
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Average commercial solar system prices continue to decrease for the third month in a row, this month hitting a new all-time low of $1.21 per watt. Commercial solar system prices (10kW-100kW) All prices in the tables below include incentives available through the federal Renewable Energy Target as well as GST, but do not incorporate meter installation […]

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Residential Solar PV Price Index – March 2017

March 22, 2017
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Average residential solar PV system prices in Australia crept down to $1.58 per watt ($1.58/W) from $1.60 in February, according to data from Solar Choice’s installer network database. Although so slight as to be inconsequential, the drop represents a new low, with $1.59/W (in Sept 2016 and Dec 2015) being the next lowest since we […]

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Commercial Solar PV Price Index for February 2017

February 28, 2017
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The average price of commercial-scale solar system installations in Australia dropped to a new all-time low of $1.23 per watt ($/W), according to data from the Solar Choice installer network database. The previous low – which held stead for about 3 months – was $1.25/W. All system sizes included in the index (10kW, 30kW, 50kW […]

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Solar Choice brokers 100kW solar system for Geelong High School

February 21, 2017
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Solar Choice has brokered the installation of a 100kW solar PV system for Geelong High School, a co-ed public secondary school in East Geelong, Victoria. The school opened in 1910, making it one of Victoria’s oldest state secondary schools. It moved to its current location (385 Ryrie Street, East Geelong) in 1915. Geelong High School originally approached […]

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Is home solar power still worth it in Australia in 2017?

February 16, 2017
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Rooftop solar on its own is already affordable enough to be a smart choice for virtually any Australian home with an unshaded roof and some daytime electricity usage. This is true even in the absence of generous, state-backed solar feed-in tariffs and the (slight) reduction of the up-front incentive for solar available through the federal Renewable […]

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Residential Solar PV Price Index – February 2017

February 14, 2017
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Despite the decrease in the incentive available under the federal Renewable Energy Target that came in effect from last month, average solar PV system prices have moved little, according to our data. Although this month did see a slight reduction in prices (down to $1.60 per watt from $1.62/W in February), this is mainly attributable to changes in […]

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Should you oversize your solar array / undersize your inverter?

February 3, 2017
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After numerous questions about the relationship between solar panel power and inverter power, I decided to put together this blog post. Now logically, if you have (say) 3,000 Watts of solar panels on your roof, you would expect that a 3000 Watt inverter would be the perfect match, right? Not necessarily! There are a number of […]

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5kW solar systems: Pricing, output, and returns

January 17, 2017
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5 kilowatt (5kW) solar systems have become one of the most popular sizes in Australia, thanks to the combination of high energy yields and great value-for-money that they deliver. What are the price ranges, electricity yields and financial returns that a household can expect from a 5kW solar PV system? This article takes a look. How […]

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