Question: Figure 5.71 shows solar radiation, in watts per square meter (w/m 2 ), in Santa Rosa, California, throughout a typical January day. Estimate the daily
Figure 5.71 shows solar radiation, in watts per square meter (w/m2), in Santa Rosa, California, throughout a typical January day. Estimate the daily energy produced, in kwh, by a 20-square-meter solar array located in Santa Rosa if it converts 18% of solar radiation into energy.

solar radiation (w/m) 400 300 200 100 4 8 12 16 20 Figure 5.71 time (hrs past midnight)
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The units of the horizontal axis are hours and the units of the vertical axis are wm 2 We use the gr... View full answer
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