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Home > Explore Systems >
Tucson USD Doolen Middle School
System Details
| Location | Tucson, AZ Map |
| Capacity | 6.000 KWdc, 5.400 KWac |
| Commissioned Date | October 3, 2002 |
| Monitoring Method | Soltrex |
| Array Azimuth | 180° What's this? |
| Array Tilt | 30° What's this? |
| Shell 150 |
150 |
40 |
6.000 |
 |
| Xantrex GT3.0 |
3000 |
2 |
6.000 |
Latest Graph Data
Modeled vs. Measured Energy
| PV Energy (kWh) |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Tot |
Modeled kWh
|
715 |
685 |
863 |
886 |
875 |
817 |
775 |
757 |
793 |
799 |
741 |
664 |
9,370 |
2010 Actual kWh
2010 Ratio to Model |
627 0.88 |
765 1.12 |
1,184 1.37 |
901 1.02 |
1,315 1.50 |
1,184 1.45 |
1,042 1.34 |
1,032 1.36 |
73 0.09 |
|
|
|
8,124 1.13 |
2009 Actual kWh 2009 Ratio to Model |
0 0.00 |
0 0.00 |
0 0.00 |
569 0.64 |
573 0.66 |
0 0.00 |
0 0.00 |
0 0.00 |
1,013 1.28 |
925 1.16 |
578 0.78 |
574 0.86 |
4,233 0.45 |
2008 Actual kWh 2008 Ratio to Model |
612 0.86 |
874 1.28 |
1,237 1.43 |
1,277 1.44 |
1,285 1.47 |
1,185 1.45 |
1,102 1.42 |
1,109 1.47 |
1,088 1.37 |
971 1.22 |
710 0.96 |
199 0.30 |
11,649 1.24 |
2007 Actual kWh 2007 Ratio to Model |
655 0.92 |
872 1.27 |
1,180 1.37 |
1,172 1.32 |
1,254 1.43 |
1,155 1.41 |
1,002 1.29 |
919 1.21 |
852 1.07 |
830 1.04 |
560 0.76 |
508 0.77 |
10,958 1.17 |
2006 Actual kWh 2006 Ratio to Model |
|
378 0.55 |
806 0.93 |
1,040 1.17 |
1,289 1.47 |
1,135 1.39 |
1,084 1.40 |
1,033 1.37 |
908 1.15 |
826 1.03 |
701 0.95 |
608 0.92 |
9,809 1.13 |
Energy/Pollution Equivalents
Since monitoring began, this system has produced 44,773 kWh of electrical energy.
| Enough electricity for... |
More electricity equivalents |
1,317
Americans' electricity needs for one day. |
3,444,070
hours use of an energy-efficient
CFL light bulb. |
2,713,509,394
minutes yakking on a mobile phone. |
 |
| And offsetting... |
More pollution equivalents |
62,346
lbs. of CO2 emissions, the main cause of global warming. |
68,197
miles worth of CO2 emissions from the average American car. |
93
trees cut down, given their capacity to absorb CO2. |
More Information
Doolen Upgrade
In April 2006, 10 additional modules were added to the Doolen Middle School PV system, bringing the total DC system rating up to 6 kW. The "modeled" energy production in the "measured versus modeled" table reflects the addition of the new modules.
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