UFC 3-400-02
28 FEBRUARY 2003
Figure 2-15. Sample Data Set Page 15
Average Annual Solar Radiation Nearest Available Site
(Source: National Renewable Energy Laboratory, Golden CO, 1995)
City:
ST. LOUIS
State:
MO
WBAN No:
13994
Lat(N):
38.75
Long(W):
90.38
Elev(ft):
564
Stn Type:
Secondary
SHADING GEOMETRY IN DIMENSIONLESS UNITS
Window:
1
Overhang:
0.498
Vert Gap:
0.314
AVERAGE INCIDENT SOLAR RADIATION (Btu/sq.ft./day), Percentage Uncertainty =
9
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
HORIZ
Global
690
930
1230
1590
1860
2030
2020
1800
1460
1100
720
580
1340
Std Dev
56
69
98
135
138
114
120
110
112
98
69
57
42
Minimum
550
800
1060
1370
1550
1830
1750
1570
1190
870
590
490
1280
Maximum
780
1070
1430
1930
2180
2350
2240
1960
1690
1250
870
710
1480
Diffuse
340
460
590
710
810
840
810
730
600
430
350
300
580
Clear Day
Global
950
1300
1760
2230
2520
2630
2550
2290
1870
1400
1000
840
1780
NORTH
Global
210
280
360
440
550
630
600
490
380
290
220
190
390
Diffuse
210
280
360
430
500
530
520
460
380
290
220
190
370
Clear Day
Global
190
250
330
430
580
680
630
470
360
270
200
170
380
EAST
Global
460
590
750
920
1060
1140
1130
1050
880
710
470
390
800
Diffuse
260
340
440
530
600
640
620
570
470
360
270
230
440
Clear Day
Global
710
910
1150
1340
1440
1460
1430
1340
1170
940
730
640
1110
SOUTH
Global
1080
1110
1060
970
830
780
820
950
1110
1220
1020
940
990
Diffuse
370
440
500
540
560
570
570
560
520
440
360
330
480
Clear Day
Global
1930
1970
1770
1380
1040
890
950
1210
1580
1840
1870
1860
1520
WEST
Global
470
600
740
920
1040
1110
1120
1030
880
700
480
390
790
Diffuse
260
340
440
530
610
650
630
580
480
360
270
230
450
Clear Day
Global
710
910
1150
1340
1440
1460
1430
1340
1170
940
730
640
1110
32
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