1. Society of Sustainability and Environmental Engineering
Smart Grid and Renewable Energy
Integration
Speaker: Mike Davidson

2. SWIS duration curve
100.00%
99.00%
The top 15% of capacity is used 2% of the time 98.00%
97.00%
96.00%
100%
95.00%
90% 94.00%
93.00%
80%
92.00%
70% 91.00%
Percentage of Peak Load
90.00%
60% 0.00% 0.20% 0.40% 0.60% 0.80%
50%
40%
30%
20%
10%
0%
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Percentage of Time

3. Residential duration curve
100%
The top 10% of capacity is used 0.35% of the time 99%
98%
100% 97%
96%
90% 95%
94%
80%
93%
70%
Percentage of Peak Current
92%
91%
60%
90%
50% 0.00% 0.10% 0.20% 0.30% 0.40%
40%
30%
20%
10%
0%
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Percentage of Time

4. Effect of air conditioners

5. Solar PV and commercial peak
1
0.9
0.8
0.7
Demand
0.6
Summer PV
0.5 Demand - 10% PV
0.4 Demand - 20% PV
Demand - 30% PV
0.3
0.2
0.1
0
0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 0:00

6. Solar PV and the residential peak
1
0.9
0.8
0.7
Demand
0.6
Summer PV
0.5
Demand - 10% PV
0.4 Demand - 20% PV
Demand - 30% PV
0.3
0.2
0.1
0
0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 0:00

7. Forecast PV inverter capacity
Residential Inverter Embedded Generation Capacity forecast
Note: Increased rate of applications from March 2011 due to announcements of changes to
Government incentive schemes. These application rates are not expected to continue.
1,000 2.50
889
900
800 2.00
700
Average System Size (MW)
600 1.50
Power (MW)
500
493
400 1.00
300
210
200 0.50
194
100 181
0 0.00
Jun-08
Jun-09
Jun-10
Jun-11
Jun-12
Jun-13
Jun-14
Jun-15
Jun-16
Jun-17
Jun-18
Jun-19
Jun-20
Dec-07
Dec-08
Dec-09
Dec-10
Dec-11
Dec-12
Dec-13
Dec-14
Dec-15
Dec-16
Dec-17
Dec-18
Dec-19
Approved capacity (Estimated MW) Forecast (Mid) Forecast (High)
Forecast (Low) Average System Size

8. Solar penetration in Perth

9. The Western Power network

10. Smart grid

11. PV Saturation Trial
PV PV PV
Customers
No. of No. of PV Capacity Penetration Penetration
Connection
Customer Customer Installed by No. of by TX
Phase
(kW) Customers Capacity
3 Phase 26 14
Red 14 4 20.2 16% 10.1%
White 17 4 15.0 10% 7.5%
Blue 20 12 23.4 18% 11.7%
Total 77 34 58.6 44% 29.3%

12. Transformer Load Profiles
Transformer Average Daily Load Profile and PV Generation Profile (Spring)
100
90
80
70
60
Load (kW)
50
40
30
20
10
0
0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 0:00
Red Phase White Phase Blue Phase Total Load
PV Red Phase PV White Phase PV Blue Phase PV Total

13. Customer voltage compliance

14. Customer Voltage Compliance

15. Mitigating strategies

16. Other smart grid programs

17. Questions?
Want to know more?
smartgrid@westernpower.com.au