Home solar system prices: Current averages by city

solar_choice_logo_finalSince 2012, Solar Choice has been publishing solar PV system prices for each of Australia’s capital cities across a range of popular system sizes. The data we use comes from our installer network database, which consists of about 100 prominent solar installation companies around the country. Installers in our network pre-fill pricing & product data for the free & impartial quote comparisons which we provide to our customers.

Over the years, our Solar PV Price index has become a industry reference point and overall bellwether for pricing trends, filling the gap in the absence of official government reporting on the topic. While it is not definitive, the PV Price Index is based on a robust sample of installers (usually 3-15, depending on the city), and provides reliable ballpark figures on the going cost of solar in Adelaide, Brisbane, Canberra, Darwin, Hobart, Melbourne, Perth and Sydney.

The tables below contain the most current residential solar system prices from around Australia. The system sizes included are 1.5kW, 2kW, 3kW, 4kW, 5kW, 7kW and 10kW.

What about prices for larger systems?

Our Commercial Solar PV Price Index has been in monthly publication since May 2014; it covers pricing for 10kW, 30kW, 50kW, 70kW and 100kW solar systems. See our Commercial Solar PV Price Index here.

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Residential solar power system prices – May 2018

Prices in the table below include both the up-front incentive available for small-scale systems through the Renewable Energy Target (i.e. ‘STC discount’) and GST – they represent the total retail price of the system to the customer. We’ve left fields blank where there were only a small number of price points available in our database (usually less than 3).

In particular, the prices below encompass:

  • Supply & installation of solar panels
  • Supply & installation of a string inverter, microinverters and/or power optimisers
  • Supply & installation of all requisite cabling, safety & mounting equipment
  • The federal ‘discount’/incentive available for all accredited small-scale solar installations in Australia
  • GST

Table 1: Average out-of-pocket costs by city & system size (May 2018)

 1.5kW2kW3kW4kW5kW7kW10kW
All$3,354$3,940$4,660$5,560$5,570$8,770$13,320
Adelaide, SA$2,900$3,490$4,140$4,730$5,270$7,670$11,990
Brisbane, QLD$3,060$3,390$3,930$4,810$5,240$7,300$12,160
Canberra, ACT$3,180$3,550$4,140$4,920$5,410$7,630$12,780
Darwin, NT$5,800$6,750$8,100$9,300-$13,500$15,700
Hobart, TAS$3,490$4,540$5,120$6,630$7,100$10,680$14,940
Melbourne, VIC$3,080$3,790$4,350$5,230$5,980$9,190$13,490
Sydney, NSW$2,820$3,270$4,070$4,750$5,420$7,750$12,080
Perth, WA$2,500$2,760$3,390$4,090$4,580$6,420$13,400

Table 2: Average, high & low prices per watt (May 2018)

  1.5kW2kW3kW4kW5kW7kW10kW
Adelaide, SAMedian (Primary)$1.79$1.61$1.31$1.13$1.02$1.04$1.17
High (Primary)$2.53$2.68$2.22$1.93$1.74$1.74$1.88
Low (Primary)$1.36$1.09$0.85$0.77$0.68$0.69$0.74
Premium$2.21$2.00$1.58$1.39$1.28$1.20$1.22
Microinverter$2.70$2.18$1.79$1.62$1.56$1.43$1.50
Brisbane, QLDMedian (Primary)$1.79$1.54$1.24$1.13$1.00$0.95$1.18
High (Primary)$2.55$2.30$1.73$1.56$1.27$1.41$1.88
Low (Primary)$1.23$0.92$0.85$0.77$0.68$0.00$0.74
Premium$2.05$1.82$1.53$1.38$1.21$1.11$1.17
Microinverter-$2.14$1.67$1.54$1.40$1.21$1.32
Canberra, ACTMedian (Primary)$1.82$1.63$1.29$1.14$1.04$1.04$1.25
High (Primary)$2.27$2.68$2.22$1.93$1.74$1.74$1.57
Low (Primary)$1.47$0.95$0.85$0.77$0.68$0.69$0.79
Premium$2.16$2.04$1.56$1.37$1.24$1.15$1.35
Microinverter$2.73$2.37$2.15$1.99$2.03$1.92$1.82
Darwin, NTMedian (Primary)$3.72$3.18$2.51$2.29$2.23$1.91$1.72
High (Primary)-------
Low (Primary)-------
Premium$4.35$3.19$2.71$2.33$2.45--
Microinverter--$3.19$3.11$2.86--
Hobart, TASMedian (Primary)$2.10$2.07$1.64$1.59$1.37$1.49$1.48
High (Primary)$2.55$2.68$2.22$1.93$1.74$1.74$1.88
Low (Primary)$1.73$1.38$1.28$1.36$1.04$1.17$1.32
Premium$2.44$2.32$2.00$1.73$1.58$1.53$1.44
Microinverter$3.73$2.94$2.27$1.99$1.78$1.72-
Melbourne, VICMedian (Primary)$1.98$1.77$1.39$1.24$1.15$1.28$1.33
High (Primary)$3.32$2.68$2.22$2.03$1.95$1.91$1.94
Low (Primary)$1.23$0.92$0.85$0.77$0.68$0.69$0.78
Premium$2.45$2.18$1.69$1.53$1.45$1.45$1.44
Microinverter$2.77$2.24$1.90$1.82$1.91$1.82$1.86
Sydney, NSWMedian (Primary)$1.74$1.55$1.28$1.14$1.03$1.08$1.19
High (Primary)$2.48$2.68$2.22$1.93$1.74$1.74$1.57
Low (Primary)$1.17$0.92$0.91$0.80$0.61$0.83$0.72
Premium$2.10$1.86$1.55$1.42$1.30$1.33$1.28
Microinverter$2.55$2.27$1.88$1.68$1.58$1.62$1.49
Perth, WAMedian (Primary)$1.57$1.22$1.04$0.94$0.85$0.86$1.32
High (Primary)$2.25$1.63$1.59$1.57$1.32$1.22$1.97
Low (Primary)$1.13$0.94$0.72$0.68$0.62$0.65$0.88
Premium$1.88$1.59$1.26$1.14$1.05$1.02$1.20
Microinverter$2.46$1.98$1.72$1.61$1.48$1.44$1.46
AllMedian (Primary)$1.83$1.63$1.31$1.19$1.07$1.11$1.27
High (Primary)$3.32$2.68$2.22$2.03$1.95$1.91$1.97
Low (Primary)$1.13$0.92$0.72$0.68$0.61$0.00$0.72
Premium$2.19$2.02$1.57$1.41$1.29$1.20$1.28
Microinverter$2.82$2.30$2.07$1.92$1.83$1.59$1.58

For more detail, please see the current edition of the Residential Solar PV Price Index.

Historic average residential system prices (August 2012 – May 2018)

Gallery: Historic residential solar system prices by system size & city

See all previous Residential Solar PV Price Index articles

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