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59
June 2020
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Solar Stik
®
, Inc.
SYSTEM SETUP AND OPERATION GUDIE FOR THE 1 kW HYBRID POWER SYSTEM (HPS)
PRELIMINARY DRAFT
Generator and PV Input
The 1 kW HPS is configured to operate with the 1 kW MPG and the 300 W PV array as power
sources. The “PV-only” scenerio assumes five (5) hours of sun daily. However, weather/sun varies
daily and length of daylight varies seasonally so the amount of power supplied by the PV array will
vary likewise. The graph below illustrates how generator duty cycle decreases, at various continuous
loads, as the power from PV increases.
6%
12%
16%
21%
25%
28%
31%
34%
37%
39%
0%
6%
12%
16%
21%
25%
28%
31%
34%
37%
0%
5%
10%
15%
20%
24%
27%
30%
33%
36%
0%
3%
9%
14%
19%
23%
26%
30%
33%
36%
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
50
100
150
200
250
300
350
400
450
500
Generator Duty Cycle vs Load, 300 W PV
Generator Duty Cycle, no PV
Duty Cycle, 300 kW PV, 4 solar hours/day
Duty Cycle, kW PV, 5 solar hours/day
Duty Cycle, kW PV, 6 solar hours/day
No PV
4 hr/day PV
5 hr/day PV
6 hr/day PV
Load (W)
Generator Duty Cycle
Figure 29. Increaseing PV power input reduces generator duty cycle.
