Frank Vignola*

Peter Harlan, Rich Kessler*

Ihab Elzeyadi*

Bob Simonton†

Fotis Mavromatakis‡

*University of Oregon† Oregon University System

‡ Technical Educational Institute of Crete

6/12/2010 1fev@uoregon.edu

Background and rationale for solar awning Design of Prototype Monitoring the system Evaluating the effects of shading Predictions for daylighting A look at awning cooling Kiosk Lessons learned

6/12/2010 2fev@uoregon.edu

Reduce our carbon footprint Maintain our national leadership position in

sustainability Allow student and faculty researchers to develop

and test new technologies Increase the competitiveness of the university

system’s renewable energy curriculum Increase the value of the research, prior to

commercialization Enhance the Oregon economy by creating both

short and long term job opportunities in emerging renewable energy industries.

6/12/2010 3fev@uoregon.edu

6/12/2010 4fev@uoregon.edu

6/12/2010 5fev@uoregon.edu

Exterior view of solar awning

Interior view of solar awning at twilightSee contrast with florescent fixtures in adjacent hall

Incident irradiance DC current and voltage AC Power output PV module temperature Global illuminance Illuminance on top of light shelf Illuminance at bottom of window sill Illuminance on wall opposite sill Power to LEDs

6/12/2010 6fev@uoregon.edu

Eugene, OR -- Solar Awning Data -- February 21, 2010

0

50

100

150

200

250

300

350

400

700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800Time

AC Output East Array AC Power West Array

AC

Pow

er O

utpu

t (W

/m2 )

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"Max Current Point" vs "Max Voltage Point"February 21, 2010

0500

1,0001,5002,0002,5003,0003,5004,0004,5005,000

70,0

00

75,0

00

80,0

00

85,0

00

90,0

00

95,0

00

100,

000

105,

000

110,

000

Voltage (milivolts)

DC

Cur

rent

(M

iliam

ps)

Unshaded Array One Module Shaded Two or More Modules Shaded

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PV Awning Efficiency Normalized to Array Rating February 2, 2009

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00Time

Arr

ay E

ffici

ency

East Efficiency West Efficiency East Temperature Adjusted

PV Awning Efficiency Normalized to Array RatingFebruary 21, 2010

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00Time

Arr

ay E

ffic

ienc

y (%

)East Efficiency West Efficiency East Temperature Adjusted

Need to adjust for temperature

6/12/2010 9fev@uoregon.edu

Light Levels not Awning Light Level with Awning Light Levels with AwningNo Interior Light Shelf With Interior Light Shelf

6/12/2010 10fev@uoregon.edu

Solar Awning Illuminance DataFebruary 21, 2010

0

10000

20000

30000

40000

50000

60000

70000

80000

90000

100000

700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800

Time

Illum

inan

ce (

Lux)

Illuminance, Global IlluminanceTop of Light ShelfIlluminance Bottom of Window Pane Illuminance at Back Wall

6/12/2010 11fev@uoregon.edu

6/12/2010 12fev@uoregon.edu

6/12/2010 13fev@uoregon.edu

Building Integrated PV with kiosk makes for great educational opportunities

Sizing inverter to system important Use bigger PV panels when possible Include maintenance and repair into design

considerations Don’t overestimate the use of common sense

Pay attention to details!

6/12/2010 14fev@uoregon.edu