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company:
QUIESCENT
SOLAR TRACKER
patent filing name : solar shadow less structures
by
Mr. G.saivikram
Global Technology provider for solar Megawatt projects
& Global Funding helper for solar project for funder approved Quiescent Solar technology.
galisaivikram@gmail.com
+91 95002901122
1

Quiescent Solar Tracker (QST) Field Data
Why Sun Tracker?
The Sun’s trajectory is a factor of time of day, geographical
location and seasons.
The goal of all solar trackers is to follow the sun`s trajectory
and ensure that the solar panels are positioned for maximum
exposure to sunlight.
What’s Quiescent Solar Tracker
If we quietly achieve maximum exposure of sunlight on solar
modules by placing them in a way that it ‘follows’ the sun’s
trajectory, we call such a tracker system as Quiescent Solar
Tracker.
2

Quiescent Solar Tracker System on Rooftop Quiescent Solar Tracker System on ground
Quiescent Solar Tracker (QST) Field Data
Quiescent Solar Tracker System is an innovative technique of designing solar
structures to maximize the solar energy generation with gains of 24% to 39% over
and above standard generation, and with an average gain of 27% for an entire year
compared to the Fixed Angle N-S structures system followed in the solar industry. On
earth, for Northern hemisphere, QST technology will place solar panels facing south
east, south west, north and south directions. For the Southern hemisphere, QST
technology will have north east, north west, north and south direction. In both the
hemispheres, the angle of directions will change as per the local latitude in QST
technology approach. QST mounting structures generate more power compared to
Single and Dual axis tracker systems.
3

Dec
Nov/Jan
Oct/Feb
Sep/March
Aug/April
July/may
June
90+7.8390-7.83
7.83
7.83
7.83 7.83 7.83
7.83
As per Understanding Astronomy
http://physics.weber.edu/schroeder
/ua/SunAndSeasons.html
The QST Approach
4

• For the perfection of this invention, series of experiment have been done in the
following months during 2014-15 as listed below:
SIX EXPERIMENTS WERE DONE IN 2014 AND 2015
Series of Experiments
The concept of QST was demonstrated by the above listed experiments
consistently and repeatedly at varied levels in order to validate higher
output of power.
• 1ST EXPERIMENT WAS DONE IN SEPTEMBER 2014.
• 2ND EXPERIMENT WAS DONE IN OCTOBER 2014.
• 3RD EXPERIMENT WAS DONE IN NOVEMBER 2014.
• 4TH EXPERIMENT WAS DONE IN JANUARY 2015.
• 5TH EXPERIMENT WAS DONE IN MAY 2015
• 6TH EXPERIMENT WAS DONE IN AUGEST 2015
5

After the QST concept was first invented, a lab experiment was carried out to basically
demonstrate the first “Proof of Concept ” on 2watt solar cells with a voltage of 0.5volts
and 4amps current, the experiment was successfully done.
1st
EXPERIMENT WAS CARRIED OUT IN SEPTEMBER 2014
2nd EXPERIMENT WAS CARRIED OUT IN OCTOBER 2014
The second experiment(qst) was done with solar cells of size 10amps and 0.5 volts and
they were positioned in 4 directions(south east, south west, north and south) and the
same cells performance was compared by placing another 4 solar cells in southern
direction for testing.
This experiment (qst) was done with four 3watt solar panels placed in south east ,
south west , north and southern directions with capacity of 12watts, and in another
experiment four other solar panels were placed only in southern direction with
capacity of 12watts. The results were proven to be very positive for QST and the
results generated on this experiment is mentioned in the subsequent slides.
3rd
EXPERIMENT WAS CARRIED OUT IN NOVEMBER 2014
6

The QST system has a versatile aspect of performance, wherein when panels are
mounted on the newly designed “QST Solar module-250w” with pyramid structure which
produced 27% more power compared to the standard solar modules of 250watt capacity
available in the market.
4th
EXPERIMENT WAS CARRIED OUT IN JANUVARY 2015
5th
EXPERIMENT WAS CARRIED OUT IN AUGEST 2015
The 5th
Experiment was done with a scaled up capacity of 2 KW and 4 KW solar panels
with each solar panel of 250watt. The results are mentioned in the next slide.
7

day
60
56.32
64
9/5/2015 7.13am
8.00am
8.48am
9.04am
9.15am
9.32am
9.46am
10.01am
10.22am
10.30am
10.40am
11.00am
11.40am
11.50am
12.02pm
12.15pm
12.19pm
12.45pm
1.17pm
1.39pm
1.52pm
2.05pm
2.14pm
2.32pm
3.16pm
3.31pm
4.02pm
4.16pm
4.31pm
4.47pm
5.00pm
Results in the above table shows avg gains in power from 6am to 6pm
Standard Structure A1 QST structure A2
time voltage current watts voltage current watts diff %
155.6
156.6
156.7
155.9
155.1
156
154.3
151.4
157.3
153.6
155.4
158.7
153.9
152.5
152.7
150.2
150.1
155.5
150.7
151.5
152.3
150.9
152.1
151.8
149.1
153.4
154.1
152.9
152.9
151.5
149.4
2.73
2.23
5.32
5.32
5.81
5.57
6.1
6.7
6.83
4.75
5.53
8.27
5.9
6.05
5.91
5.7
5.81
5.7
7.79
7.16
7.14
7.15
6.82
6.21
4.82
4.01
3.365
2.923
2.449
1.871
1.3
424.788
349.218
833.644
829.388
901.131
868.92
941.23
1014.38
1074.359
729.6
859.362
1312.499
908.01
922.625
902.457
856.14
872.081
886.35
1173.953
1084.74
1087.422
1078.935
1037.322
942.678
718.662
615.134
518.5465
446.9267
374.4521
283.4565
194.22
155.6
156.7
157.2
156.5
155.9
156.7
155.3
152.7
157.6
154.3
155.3
158.8
153.6
153.2
152.3
151.3
151.3
154.7
150.7
151.2
151.7
151.1
152.6
151.6
149.8
152.8
153.4
151.9
151.5
149.7
149.5
6.25
6.2
6.89
6.89
7.19
6.85
7.35
7.74
7.5
5.6
6.49
8.67
6.01
6.23
6.11
5.81
6.01
5.9
8.4
8.01
8.1
8.06
7.84
7.32
6.21
5.59
4.89
4.46
3.94
3.242
2.522
972.5
971.54
1083.108
1078.285
1120.921
1073.395
1141.455
1181.898
1182
864.08
1007.897
1376.796
923.136
954.436
930.553
879.053
909.313
912.73
1265.88
1211.112
1228.77
1217.866
1196.384
1109.712
930.258
854.152
750.126
677.474
596.91
485.3274
377.039
23.032
23.083
19.608
19.608
19.608
19.608
19.608
19.608
15
5
2
4
4
3
5
3
8
11
12
12
16
16
22.746
27.983
30.872
34.03
37.268
41.595
50
60
29.13888

Date Average %
gains are
more than
standard
structure
per day for
2KW
capacity
Month
8/5/15 24.0268 May/Sep
9/5/15 29.13888 May/Sep
10/5/15 28.52142 Nov/Mar
11/5/15 33.23892 April/Oct
13/5/15 34.63955 June/Aug
16/5/15 34.49775 July
18/5/15 38.40875 Jan
20/5/15 39.1425 Dec/Feb
Date Average %
gains are
more than
standard
structure
per day for
4KW
capacity
Month
22/5/15 30.00333 May/Sep
23/5/15 35.0515 July
25/5/15 34.61213 Nov/March
27/5/15 34.52058 April/oct
28/5/15 33.89125 June/Aug
29/5/15 37.06417 January
30/5/15 38.58692 Dec/feb
The percentage of efficiency gains in QST shows more power output than the fixed
axis structure
Increased Power from QST Structures
9

QST Power Generation
0
10
20
30
40
50
60
70
Site: Chittoor, AP, India
%IncreaseinenergygenerationbyQST
8th
June 2015
The percentage difference in QST technology generation efficiency from Morning
to Evening.
10

As per the chart shown in previous slide, the percentage difference of power output for
QST technology is more at morning and at evening because:
Quiescent Solar Tracker System(QST) is an innovative technique of designing solar mounting
structures in order to maximize the solar energy generation with a range of 24% to 39% and
with an average gain of 27% for the entire year as compared to the standard Fixed Angle N-
S tracker systems followed in the solar industry.
The percentage of gain of power output using QST technology is more at mornings and
evenings compared to standard orientation of panels in south direction used in Single/Dual
Axis Tracker systems.
Using QST technology solar panels are placed in different directions. In northern
hemisphere where India lies along with many other countries in the Indian sub-continent.
Mounting structures are designed for placing solar panels in south east for capturing
maximum sunlight, and panels placed in south and northern direction for capturing more
sunlight in the afternoon. Solar panels are placed in south west direction to capture more
sunlight in the evening.
In QST we place the solar panels in different directions such that “ Sun will track the solar
panels quietly instead of solar panel tracking the Sun”, this way QST maximizes the power
output when solar panels are in fixed position performing better than single and dual axis
trackers.

QST Power Generation…
11

6th
EXPERIMENT WAS CARRIED OUT IN MAY 2015
6th Experiment connected to 3.4 Ohm resistor and 4 Ohm resistors separately for
standard south facing fixed structure and QST structure, with 3watt solar panels with
total capacity of 12 watt , the data is shows as per below table.
12
TIME
6.34-7am
7-8am
8-9am
9-10am
10-11am
11-12am
12-1pm
1-2pm
2-3pm
3-4pm
4-5pm
5-6pm
average per day 43.64%
with load of Standard solar panel structure with load of QST solar panel struc
resistance power voltage current power voltage current DIFF IN %
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
0.00312
0.08138
0.12967
0.16988
0.1546
0.2031
0.26544
0.15247
0.15036
0.0864
0.05017
0.01322
0.103
0.526
0.664
0.76
0.725
0.831
0.95
0.72
0.715
0.542
0.413
0.212
0.03029
0.15471
0.19529
0.22353
0.21324
0.24441
0.27941
0.21176
0.21029
0.15941
0.12147
0.06235
0.0046
0.2356
0.21956
0.27106
0.20753
0.23824
0.30003
0.20335
0.25438
0.16149
0.18124
0.0492
0.125
0.895
0.864
0.96
0.84
0.9
1.01
0.8315
0.93
0.741
0.785
0.409
0.03676
0.26324
0.25412
0.28235
0.27647
0.26471
0.29706
0.24456
0.27353
0.21794
0.23088
0.12029
70%
65.46%
40.93%
37.33%
25.51%
15%
11.53%
25.02%
40.89%
46.50%
72.32%
73.13%

Economics
• Using QST an increase of 24% - 39% solar power output was observed with
an average gain of 27% for total year as compared to fixed standard
structure.
• Our new QST system has an average gain of 27% per annum per MW which
would produce 18 -20 Lakhs (1.8 – 2.0 Million) Units/MW/year compared
to fixed structures producing 16lakh units/MW/year.
13

QST is far Superior
15% 25% 30%
Fixed Type Single Axis Dual Axis Quiescent
% increase in
efficiency
Cost
Addnl.
O&M cost
14

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