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Dave Strenski March 2012

Birth and Death of a Solar Electron. He was always so negative. Baby minus. Dave Strenski March 2012. Renewable Energy and a Renewed Economy for Michigan February 29, 2008 by Senator Glenn S Anderson

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Dave Strenski March 2012

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  1. Birth and Death of a Solar Electron He was always so negative Baby minus Dave Strenski March 2012

  2. Renewable Energy and a Renewed Economy for MichiganFebruary 29, 2008 by Senator Glenn S Anderson “Consumers, businesses and manufacturers in Michigan currently pay $18 billion each year to import coal, oil and natural gas. Of that $18 billion we import 100% of the coal we use, 96% of the oil we consume for transportation fuels and 75% of our natural gas from other states. That money heads across the border each year to help workers and businesses in other states, and it does nothing to reduce our dependence on fossil fuels, lower greenhouse gas emissions, diversify our state's economy or create jobs here in Michigan.” http://bloggingformichigan.com/archives/bfm/www.bloggingformichigan.com/showDiarye324.html Could add $18 billon to Michigan’s economy every year! Slide 2

  3. sun Sunny Boy KWH KWH KWH 325 100 534 9885 327 2005 2005 2005 2005 2007 2008 photovoltaic panels 2008 2008 2008 2008 2008 2008 Forward Meter Reverse Meter disconnect inverter utility meters Gen Meter store meters breaker panel

  4. Tracking systems Seasonal fixed panels Fixed panels Steeper for more uniform annual power Flatter for maximum annual power

  5. n + Silicon [Si] shell 3 14 protons 14 neutrons shell 1 shell 2 valence electrons

  6. n + Silicon [Si] shell 3 14 protons 14 neutrons shell 1 shell 2 valence electrons

  7. Building a Solar Cell wires on the top silicon doped with phosphorus (few extra electrons) silicon doped with boron (holes, few less electrons) wires on the bottom

  8. + + + + + - - - - - photons electrons migrate up photons photons photons photons holes migrate down

  9. Mono and Polycrystalline Silicon Amorphous Silicon Uni-solar Made in Michigan

  10. sun Sunny Boy KWH KWH KWH 325 100 534 9885 327 2005 2005 2005 2005 2007 2008 photovoltaic panels 2008 2008 2008 2008 2008 2008 Forward Meter Reverse Meter disconnect inverter utility meters Gen Meter store meters breaker panel

  11. UL listed Clean power Shuts offs if grid is down Powered by solar Quite and Cool Displays power generated AC DC voltage voltage time time AC out DC in

  12. Standard breaker 240 volt, 20 amp back fed

  13. 4:00 am forwards OFF

  14. 8:00 am forwards direct current alternating current

  15. 11:00 am forwards direct current alternating current

  16. 1:00 pm backwards direct current alternating current

  17. Power is distributed to the neighborhood Utility supplies power to the transmission lines Solar panels start generating power

  18. One less shovelful of coal is needed at the utility power plant Power is distributed to the neighborhood Utility supplies power to the transmission lines Solar panels start generating power

  19. Generated from panels In to the store data to laptop data to laptop Out of the store Slide 21

  20. 2000 sq. ft. home 440 KWH/month (average) 16c per KWH (2011) 440/30 = 14.7 KWH (day), round up to 15 KWH per day on average Solar Economics

  21. 323 Oak Street, Ypsilanti Avg KWH per month = 440 $50.93 / 367 = $0.139/kwh $43.09 / 269 = $0.160/kwh $37.60 / 218 = $0.173/kwh $48.18 / 308 = $0.156/kwh Avg = $0.157/kwh

  22. 2000 sq. ft. home 440 KWH/month (average) 16c per KWH (2011) 440/30 = 14.7 KWH (day), round up to 15 KWH per day on average Solar Economics 4 hour of sun per day, assumes panels are facing south tilted at latitude. Assume 80% system efficiency 15 KWH / 4 hr * 1.2 = 4.5 KW (added 20% for efficiency) 4500 watt would be about 18 solar panels at 250w per panel.

  23. 2000 sq. ft. home 440 KWH/month (average) 16c per KWH (2011) 440/30 = 14.7 KWH (day), round up to 15 KWH per day on average Solar Economics 4 hour of sun per day, assumes panels are facing south tilted at latitude. Assume 80% system efficiency 15 KWH / 4 hr * 1.2 = 4.5 KW (added 20% for efficiency) 4500 watt would be about 18 solar panels at 250w per panel. Solar installation cost = $3 to $7/watt installed 4500w * $3/w = $13,500 4500w * $7/w = $31,500 Minus 30% federal tax credit $13,500 * 0.7 = $9,450 $31,500 * 0.7 = $22,050 Cost of electricity for 440kwh/month

  24. Costs are coming down, and volumes are going up.

  25. 3/4 wasted ¼ useful

  26. Ypsilanti Solar Photovoltaic Case Studies

  27. Ypsilanti Food Cooperative – 2005 312 River Street, Ypsilanti, Michigan 190 x 4 = 760 watts $6000 ($7.90/watt) 190 watts 54.8 max volt 3.47 max amp 31 pounds 35.3” x 51.9” $1000 Shadow (bad)

  28. Ypsilanti Food Cooperative – 2007 312 River Street, Ypsilanti, Michigan 190 x 5 = 950 watts $1000 upgrade ($7.37/watt) No shadows

  29. Ypsilanti Food Cooperative – 2009 312 River Street, Ypsilanti, Michigan 190 x 12 = 2280 watts $9,500 upgrade ($7.24/watt) unused inverter , -$500 ($7.00/watt)

  30. Ypsilanti Food Cooperative – 2010 312 River Street, Ypsilanti, Michigan White roof added later. Should improve reflectivity.

  31. City of Ypsilanti, City Hall – 2010 1 South Huron, Ypsilanti, Michigan 205 x 12 = 2460 watts $27,300 ($11.10/watt) Extra cost due to location, and engineering services

  32. River Street Bakery – 2011 312 River, Ypsilanti, Michigan 200 x 30 = 6000 watts $44,000 ($7.33/watt)

  33. Adams School – 2011 312 River, Ypsilanti, Michigan 240 x 10 = 2400 watts

  34. Solar Ypsilanti: SolarYpsi.org Ypsilanti Food Cooperative: 734-483-1520 YpsiFoodCoop.org City of Ypsilanti: 734-483-1100 CityofYpsilanti.com Federal Tax Incentives: www.energy.gov/taxbreaks.htm DTE Energy Solar Currents: www.dteenergy.com/solar Great Lakes Renewable Energy Association: www.glrea.org Midwest Renewable Energy Association: www.the-mrea.org HomePower magazine: www.homepower.com Solar Today magazine: www.solartoday.org Solar Tour: www.nationalsolartour.org

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