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The Solar Resource

The Solar Resource. Overview. Overview of the solar resource in the U.S. Features impacting solar irradiance Latitude, cloud cover, seasonality Converting power to energy Tools to measure solar energy and shading An overview of solar energy systems. Solar PV. Solarbuzz LLC. .

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The Solar Resource

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  1. The Solar Resource

  2. Overview • Overview of the solar resource in the U.S. • Features impacting solar irradiance • Latitude, cloud cover, seasonality • Converting power to energy • Tools to measure solar energy and shading • An overview of solar energy systems http://retc.morrisville.edu

  3. Solar PV Solarbuzz LLC. http://retc.morrisville.edu

  4. So Germany must be sunny, right? http://retc.morrisville.edu

  5. Measuring the solar resource • Magnetic declination • Solar pathways • Solar math (power to energy) • Latitude and curvature • Air currents http://retc.morrisville.edu

  6. What impacts solar gain each day? Latitude (winter solstice) http://retc.morrisville.edu http://dcweather.blogspot.com/2005/12/winter-time-in-washington_21.html

  7. Sun Path – New York Summer Solstice Equinox Winter Solstice E N S W This angle should be equal to your latitude http://retc.morrisville.edu

  8. Magnetic Declination http://sos.noaa.gov/images/Land/magnetic_declination.jpg http://retc.morrisville.edu

  9. True south and declination http://www.ngdc.noaa.gov/geomag/icons/us_d_contour.jpg http://retc.morrisville.edu

  10. Declination corrections True North Magnetic North 12°48’ W http://www.ngdc.noaa.gov/geomagmodels/Declination.jsp True South http://retc.morrisville.edu

  11. Solar Angles by month in Morrisville http://retc.morrisville.edu

  12. What impacts solar gain each day? • Latitude http://www.hort.purdue.edu/newcrop/tropical/lecture_02/04m.jpg http://retc.morrisville.edu

  13. Morrisville’s Solar Resource http://retc.morrisville.edu

  14. Morrisville’s Solar Resource kWh/m2/day = http://retc.morrisville.edu

  15. Morrisville’s Solar Resource kWh/m2/day = • Yearly mean power? • 144.1 W/m2/day • Yearly mean energy? • 3.5 kWh/m2/day http://retc.morrisville.edu

  16. Solar energy throughout the year MSC weather station data http://retc.morrisville.edu

  17. How does central NY compare? • Average of solar energy throughout the year is 3.5 kWh/m2/day. • This is 1277.5 kWh/m2/year (365 days * 3.5 per day) • Albany has a daily average of 4.3 kWh/m2/day (1569.5 kWh/m2/year) • San Diego has 7.3 kWh/m2/day (2664.5 kWh/m2/year) http://retc.morrisville.edu

  18. Solar energy http://retc.morrisville.edu

  19. Cloud cover http://retc.morrisville.edu http://www.colorado.edu/geography/class_homepages/geog_3251_sum08/07_rainshadow.jpg

  20. Air Cells Low pressure http://www.earlham.edu/~biol/desert/hadley.JPG Rain Forests (cloudy) Deserts (sunny) High pressure http://retc.morrisville.edu

  21. Global Solar Energy http://earth-www.larc.nasa.gov http://retc.morrisville.edu

  22. Solar energy systems • If you assume that systems costs are comparable in NY and southern California, which location has more expensive solar energy? http://retc.morrisville.edu

  23. Estimating the Solar Resource http://retc.morrisville.edu

  24. Estimating the Solar Resource http://retc.morrisville.edu

  25. Estimating the Solar Resource S W E http://retc.morrisville.edu

  26. Estimating the Solar Resource June (lowest line): 1+1+2+2+3 = 9% July (next up): 1+1+2+3+3 = 10% May: 1+1+2+3+3 = 10% August: 1+1+2+2+3 = 9% April: 1+2+2+3 = 8% September: 1+2+2 = 5% October: 1% http://retc.morrisville.edu

  27. Estimating the Solar Resource http://retc.morrisville.edu

  28. Solar energy systems http://retc.morrisville.edu

  29. Photovoltaics http://retc.morrisville.edu

  30. Solar Thermal Electricity Parabolic mirrors http://retc.morrisville.edu

  31. Solar Hot Water Images courtesy of John Siegenthaler • Domestic solar hot water system • Flat plate collector (low temp) • Evacuated tubes (higher temp) • Solar hot water tank with heat exchanger http://retc.morrisville.edu

  32. Passive Solar Heating Thermal mass Conifers to the north Large windows facing south Small windows to north http://retc.morrisville.edu

  33. Summary • New York has an adequate solar resource for solar PV, solar hot water, and passive solar homes • Solar power can be easily converted to solar energy (and we can account for shading) • Incoming solar energy is affected by many factors such as latitude, cloud cover, and time of year • Many systems can take advantage of solar energy http://retc.morrisville.edu

  34. Contact Information Phil Hofmeyer, Ph.D.Assistant ProfessorPh: 315-684-6515 Email: hofmeypv@morrisville.edu Web: http://people.morrisville.edu/~hofmeypv/ Ben Ballard, Ph.D.Director, RETC Assistant ProfessorPh: 315-684-6780 Email: ballarbd@morrisville.edu Web: http://people.morrisville.edu/~ballarbd/ http://retc.morrisville.edu

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