photovoltaic panels on cronin’s house system cost: $7.50 / watt
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Photovoltaic Panels on Cronin’s House
System Cost:$7.50 / Watt
AC
Po
wer
(kW
/ m
2 )
Research on: Reliability, Efficiency, Power forecasting
Contact: Dr. Alex Cronin, [email protected]
Power Production Time-series
100
80
60
40
20
0
Ele
ctric
ity B
ill (
$)
Year: 2005 Total: $754
Year: 2006 Total: $686
Year: 2007 Total: $555
Yr: 2008 Ttl: $159
PV system addedNovember 2007
2005 2006 2007 2008 2009
house
Fuse box
meter
TEPGrid
PVPanels
Inverter
house
Fuse box
Net meter
TEPGrid
DC
AC
5000
4000
3000
2000
1000
0
kWh
Ge
ne
rate
d
1/1/2008 7/1/2008 1/1/2009Date
TEP / UA Solar Test Yard Research
Photovoltaic Modules at theTEP SOLAR TEST YARD
Alex CroninUA Physics
Cost Reliability Efficiency StorageTransmission
CIGS
Thin Si,
Poly Si
A Field Laboratory to study
23 Inverters
Rated Power2,640 Watts peak
Panel Temperature
Air Temp
0.12
0.10
0.08
0.06
0.04
0.02
0.00
AC
Po
we
r /
Li
ght
Pow
er
5040302010Panel Temperature (C)
Sharp Panels & Aurora inverter(rated 14 %)
Unisolar Panels & Fronius Inverter(rated 7 %)
Occurance
Partial Shade turns a system off.
4000
3500
3000
2500
2000
1500
1000
500
0
AC
Pow
er (
Wat
ts)
1817161514131211109876Time of day (hour)
Kyocera / Xantrex (#2) Sanyo / Sunnyboy (#5)
Sharp / Aurora (#1)
Unisolar / Fronius (#4)
Findings:
Partial shade is a big problem
Temperature de-rating is significant
Panels rated 1 kW can produce 1700 kWh / yr
Next: National perspectives, new research
PV module production in MW
PV cell efficiency improvements
Source: Department of Energy ERFC Workshop
PV Costs exhibit a “learning curve”
Prism Solar Technologies inc.
May reduce cost to$1 / Watt
Application in Solar Energy
• With a specially designed holographic optical element (HOE), a large portion of the expensive silicon photovoltaic (PV) cells in a solar panel can be replaced
• With this Holographic Planar Concentrator™ (HPC) technology, the solar modules produce more energy in all conditions when compared to a standard module with an equal area of silicon PV cells.
Application in Solar Energy
Other ways to Reduce Cost
• Materials: CIGS, CdTe, organics,
• Solar Grade Silicon
• Other Concentrators
• Solar thermal for electrical generation
2nd st. Parking GarageM
ount
ain
Ave
.
Solar FountainOutreach Tool:Sunlight work
Available from PhysicsLecture Demo Room
Larry HoffmanLaboratory [email protected]: PAS 120Phone: 520-621-6826
6th StH
ighl
and
Ave
Campus Rec Center with Solar