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Tucson USD Davidson Elementary School

System Details

Location	Tucson, AZ   Map
Capacity	9.600 KWdc, 8.640 KWac
Commissioned Date	October 3, 2002
Monitoring Method	Soltrex
Array Azimuth	180°   What's this?
Array Tilt	32°   What's this?

Module Make and Model	Module Wdc	Quantity	Total Capacity (KWdc)
BP 3160	160	60	9.600
Inverter Make and Model	Inverter Wac	Quantity	Total Capacity (KWac)
Xantrex GT3.0	3000	3	9.000

Latest Graph Data

Showing: Power output in kilowatts (kW)
		Choose a graph: Power Output Custom... Unit Converter

Modeled vs. Measured Energy

PV Energy (kWh)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Tot
Modeled kWh	1231	1163	1488	1499	1452	1361	1263	1355	1376	1386	1236	1152	15,962
2010 Actual kWh 2010 Ratio to Model	595 0.48	592 0.51	834 0.56	791 0.53	849 0.58	758 0.56	670 0.53	718 0.53	54 0.04				5,860 0.48
2009 Actual kWh 2009 Ratio to Model	713 0.58	695 0.60	811 0.54	841 0.56	759 0.52	696 0.51	709 0.56	763 0.56	757 0.55	792 0.57	651 0.53	604 0.52	8,790 0.55
2008 Actual kWh 2008 Ratio to Model	772 0.63	817 0.70	1,037 0.70	1,035 0.69	962 0.66	881 0.65	808 0.64	849 0.63	929 0.68	896 0.65	697 0.56	559 0.49	10,242 0.64
2007 Actual kWh 2007 Ratio to Model												571 0.50	571 0.50

Energy/Pollution Equivalents

 Since monitoring began, this system has produced 25,463 kWh of electrical energy.

Enough electricity for...		More electricity equivalents
749 Americans' electricity needs for one day.	1,958,663 hours use of an energy-efficient CFL light bulb.	1,543,188,909 minutes yakking on a mobile phone.
And offsetting...		More pollution equivalents
35,456 lbs. of CO2 emissions, the main cause of global warming.	38,784 miles worth of CO2 emissions from the average American car.	53 trees cut down, given their capacity to absorb CO2.