Table 1: TES and air ambient temperature during the year 2006.

Season/ Solar Generation Month TES Temp. (Top), °C TES Temp. (Center), °C TES Temp. (Bottom), °C Tm., °C T0, °C Soil Temp. °C ∆T (Tave – Soil Temp.), °C Qloss-TES, MWh
Spring / 376.07
MWh 		March 60 56 52 56.0 3.4 26 30 32.6
April 70 61 56 63.0 9.9 25 36 39.1
May 80 69 60 70.0 13.7 25 44 47.7
Summer / 473.33
MWh 		June 83 74 63 73.0 19.8 26 48 52.1
July 82 76 67 76.0 19.7 28 48 52.1
August 87 74 66 76.5 16.1 31 43 46.7
Fall/
233.42
MWh 		September 74 65 58 66.0 17.9 34 31 33.6
October 60 59 50 55.0 13.0 35 24 26.0
November 54 52 51 52.5 6.6 34 18 19.5
Winter / 116.76
MWh 		December 51 50 48 49.5 2.7 32 19 20.6
January 54 52 50 52.0 –2.6 30 22 23.9
February 55 54 51 53.0 0.3 29 25 27.1
Total =388 Total = 421

Sources: Figure 8, Rezaie et al . [30], and Tutiempo [46].