Jan-12 Mar May Jul Sep Nov Jan-13 Mar May Jul Sep Nov Jan-14 Mar May Jul Sep Nov Jan-15 Mar May Jul Sep Nov Jan-16 Mar May
200
180
160
140
120
100
80
60
40
20
0
40%
35%
30%
25%
20%
15%
10%
5%
0%
1.5 kW
2 kW
3 kW
4 kW
5 kW
Payback period (years)
25 20 15 10 5 0 Adelaide
Brisbane Canberra
Darwin
Hobart Melbourne Sydney
Perth
1.5 kW
2 kW
3 kW
4 kW
5 kW
Payback period (years)
25 20 15 10 5 0 Adelaide
Brisbane Canberra
Darwin
Hobart Melbourne Sydney
Perth
May-16
Mar-16
Jan-16
Nov-15
Sep-15
Jul-15
May-15
Mar-15
Jan-15
Nov-14
Sep-14
Jul-14
May-14
Mar-14
Jan-14
Nov-13
Sep-13
Jul-13
May-13
Mar-13
Jan-13
Nov-12
Sep-12
Jul-12
GWh 800
700
600 NT
500 TAS
400
WA
VIC
300 SA
200 QLD
100 NSW & ACT
0
ii
Clean Energy Regulator, “How to have STCs assigned to you as a Registered Agent”, http://ret.cleanenergyregulator.gov.au/For-Industry/Agents/Having-STCs-assigned-to-you/stcs-assigned-to-you iii estimate based on, RenewEconomy, 26 August 2013, http://reneweconomy.com.au/2013/hidden-cost-of-rooftopsolar-who-should-pay-for-maintenance-99200 iv Clean Energy Council, http://www.solaraccreditation.com.au/dam/cec-solar-accreditation-shared/guides/Guide-toinstalling-solar-PV-for-households.pdf v Sunwiz, Solar Pays Its Way on Networks. Last accessed 17 June 2015.