Old Production

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Time

28-Jan

30-Jan

31-Jan

1-Feb

2-Feb

5-Feb

7-Feb

6-Mar

 

Average

 

Corrected

Corrected

Corrected

Corrected

Corrected

Corrected

Corrected

Corrected

 

Per Panel

Total

07:30

1

1

1

1

1

1

2

1

 

0.38

1.13

07:45

2

3

3

2

2

3

2

2

 

0.79

2.38

08:00

3

1

2

3

2

5

2

2

 

0.83

2.50

08:15

3

6

5

3

2

6

2

3

 

1.25

3.75

08:30

4.5

4

3

3.5

5

5

4

3

 

1.33

4.00

08:45

4

7.5

2

6.5

10

10

4.5

4

 

2.02

6.06

09:00

2

10

5

5

9

7.5

11

4

 

2.23

6.69

09:15

2

8.5

10

11.5

8

4.5

7

5

 

2.35

7.06

09:30

12

8

2

12.5

5.5

3.5

16.5

5

 

2.71

8.13

09:45

14

12

9

13.5

2.5

3

5

12

 

2.96

8.88

10:00

10.5

5

9

12

2

10

5.5

6.5

 

2.52

7.56

10:15

12

16

17

15

3

11

6

15.5

 

3.98

11.94

10:30

3.5

16

16

7

3

3

6

6

 

2.52

7.56

10:45

16

15

19

18

8

9

16.5

3

 

4.35

13.06

11:00

19

11

20

2

12

16

7.5

9

 

4.02

12.06

11:15

18

17

16.5

8

18

12.5

6

23

 

4.96

14.88

11:30

17

20.5

15.5

19

13.5

12

6

8

 

4.65

13.94

11:45

18

20

16

19

20

8

7

7

 

4.79

14.38

12:00

17

18

19

17

20

13

5

20.5

 

5.40

16.19

12:15

17

20

19

14

19

4

7

21

 

5.04

15.13

12:30

17

19

17

9

19

21

17.5

19

 

5.77

17.31

12:45

17

19

19.5

17.5

5

7

5

19

 

4.54

13.63

13:00

17

18

9

7

20

14

5

19

 

4.54

13.63

13:15

17

13.5

18

21

20

4

4

9

 

4.44

13.31

13:30

16

8

16.5

16

20.5

18

5

18

 

4.92

14.75

13:45

16

19

21

19

14.5

15.5

8

17.5

 

5.44

16.31

14:00

15

19

13

16

14

15

5.5

19

 

4.85

14.56

14:15

15

19

19

14

10

15

6

15.5

 

4.73

14.19

14:30

14

17

6

7.5

16

12

12.5

17

 

4.25

12.75

14:45

13

16

4

13

9.5

9

11.5

15.5

 

3.81

11.44

15:00

12

16

9

14

5

6

9

13.5

 

3.52

10.56

15:15

12

13

12

12

7

2

3.5

14

 

3.15

9.44

15:30

11

11

5

11.5

12.5

2

4

13.5

 

2.94

8.81

15:45

10

9

6.5

10

4.5

3.5

4

11.5

 

2.46

7.38

16:00

8

9

7.5

8

2.5

1

7.5

10

 

2.23

6.69

16:15

7

9

5

6

7.5

1

5.5

9

 

2.08

6.25

16:30

6

3

1

7

7

1

7

8

 

1.67

5.00

16:45

4

6

5

6

5

1

6

4

 

1.54

4.63

17:00

3

4

3

1

3.5

1

4

4.5

 

1.00

3.00

17:15

2

3

6

3

3

1

3

4

 

1.04

3.13

17:30

2

2

1

2

2

1

1.5

2.5

 

0.58

1.75

17:45

1

1

1

1

1

1

1

1

 

0.33

1.00

18:00

0

0

0

0

0

0

0.5

0.5

 

0.04

0.13

 

 

 

 

 

 

 

 

 

 

 

 

Avg. Amps

10.01

11.00

9.63

9.63

8.71

7.34

6.16

9.88

 

3.00

9.00

Amp-Hours

105.12

115.50

101.09

101.09

91.45

77.09

64.71

103.78

 

31.49

94.47

4 Panels

140.16

154.00

134.79

134.79

121.93

102.79

86.28

138.37

 

31.49

125.96

10% Boost

154.18

169.40

148.27

148.27

134.12

113.07

94.91

152.21

 

34.64

138.56

This spreadsheet, sadly obsolete, was compiled in the early days of this project. Although the data it contains can no longer be trusted for accuracy, most of the trends displayed (see production lines) are still correct, and the new production data I am gathering falls closer to the predictions than I had suspected it would.

The lines titled '4 Panels' and '10% Boost' are predictions. '4 Panels' is based on the 'Amp-Hours' row ('Avg. Amps * 10.5 hours of usable light we had then) * 4/3 (1.33) to calculate the likely production in the same situation with 4 solar panels (instead of 3.) '10% Boost' is the '4 Panels' row * 1.1 (itself plus 10 percent of itself) and is intended to predict the production after the controller/booster. The numbers in the column 'Per Panel' are the numbers from 'Total' / 3 (for three panels) and should not have changed too much with four panels, if measured before the boost (see production lines and new production.)

The numbers in different colored text (made bold to stand out) indicate places where I had to modify the data for accurate calculations. Red numbers indicate places where, by accident or lack of access, a reading was not taken. In that case, it was entered later, an educated guess based on the readings above and below, and to both sides. Green numbers indicate any situation where the reading fluctuated as it was being taken, in that case I estimated an average and entered it.

These readings also give a good idea of the variation we can expect in the production from day to day. Although the overall readings are different, the proportional change from a bright and sunny day to a overcast and rainy one should still be similar. For a graphical representation of this variation, see my production bars graph.

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