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The View from 93,000,000 Miles

The View from 93,000,000 Miles. Carol Blevins Ormay, MA Principal, Director of Business Development Brian Turner, PE Electrical Engineer. About Us. Top 60 MEP Consulting Engineering firm Established in 1968 Specializing in energy efficient design. Recognized Expertise.

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The View from 93,000,000 Miles

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  1. The View from 93,000,000 Miles Carol Blevins Ormay, MA Principal, Director of Business Development Brian Turner, PE Electrical Engineer

  2. About Us • Top 60 MEP Consulting Engineering firm • Established in 1968 • Specializing in energy efficient design

  3. Recognized Expertise • Greenbuild, Toronto • Eight Annual Government Building Energy Efficient Technology Workshop, Chicago • Net Zero Energy Conference, Savannah SAME • Association for the Advancement of Sustainability in Higher Education (AASHE), Indianapolis • Council of Educational Facilities Planners International (CEFPI), Washington, DC • School Building Expo, Pittsburgh • American Society of Heating, Refrigerating and Air-Conditioning Engineers’ (ASHRAE) Net Zero Conference, San Francisco • Building Industry Consulting Service International Annual Conference (BICSI), Las Vegas • ASHRAE’s High Performance Schools Conference. Atlanta • Midwest Healthcare Engineers, Indianapolis • Lightfair International in Philadelphia • Greening the Heartland (USGBC Regional Conference), Cincinnati

  4. National Experience

  5. Why the view from 93,000,000 miles?

  6. Learning Objectives • To discover how public school districts are implementing Net Zero Energy principles • To learn how energy efficiency is integrated into the curriculum • To explore the various types of solar PV options

  7. What is Net Zero? Annual Net Energy Cost Zero Carbon Footprint Site Consumed vs. Site Produced Annual Energy Used Expressed in kBtu/sf/yr Units = Energy Use Index (EUI)

  8. Site Produced Energy

  9. Net Zero – Our Philosophy Exhaustive study of building’s energy use. Set an annual energy consumption goal to create a financial model. Discuss Green Power Generation.

  10. Making Site Produced Energy Practical

  11. Net Zero – Our Philosophy VS

  12. Let’s Talk Affordability

  13. Net Zero – Schools • Richardsville Elementary • 72,000 sf • 349 kW solar PV • 17.6kBtu/sf yr • $206/sf w/solar PV • 75% EUI Reduction

  14. Net Zero – Schools • Turkey Foot Middle School • 133,000 sf • 22 kBtu/sf yr • 385 kW solar PV (phase I) • $204/sf w/solar PV • 70% EUI Reduction

  15. Integrating Buildings Into the Curriculum

  16. Twenhofel Middle School - 2007

  17. Madeira City Schools - 2010

  18. Cartmell Elementary - 2011

  19. Richardsville Elementary - 2011

  20. Turkey Foot Middle School

  21. Designing Turkey Foot Middle School

  22. Designing Turkey Foot Middle School

  23. Designing Turkey Foot Middle School

  24. Turkey Foot Middle School - STEM • Below are some of the questions students are currently researching about our Photovoltaic System (Solar Panels).  • When is the peak solar electric output during a day? • Is solar electric output effected by the outside temperature? • How does the solar output change due to angle of the sun? • Does humidity effect solar panel output? • How does the sun's irradiance correlate to the electrical output of solar panels? • Students compare lab data with outside roof and weather data to see if what occurs in their classroom experiment also occurred outside on the roof top PV system.  Students then make a prediction for Kwh output for our school's PV system 3 days in the future by using their experimental data and the lab / roof data they analyzed. • http://www.middlematters.com/9.html

  25. Turkey Foot Middle School - Tour • http://www.youtube.com/watch?v=ojEqeveHCyc&noredirect=1

  26. Solar PV – What’s New?

  27. 174,000,000,000,000 KW • The Earth has 174 PW of available solar power! • Capacity equivalent to 300 million coal power plants!

  28. Typical Grid-Tied System

  29. Photovoltaic Effect • Electrons/holes migrate away from p-n junction • Different from photoelectric effect in that electrons are not ejected but are mobilized from the valence to the conduction band which forms voltage potential between contacts

  30. Crystalline vs. Thin Film • High Efficiency • Heavy • Output highly dependent on temperature • Made from Silicon • Lower Efficiency • Lightweight • Performs better in hot climate • Often uses rare Earth metals

  31. Photovoltaic Arrays

  32. Inverters • What do they do? • Convert DC electricity to AC electricity • Transform from <600V to 277/480 or 120/208 • Sync frequency and phase to grid • Monitor performance

  33. Choosing Panel Tilt Angle • Louisville, KY = 38° • West Lafayette, IN = 40° • Equator = 0° • North/South Poles = 90°

  34. PV Capacity by Year

  35. PV System Cost

  36. Future Trends

  37. The Perfect Solar Panel

  38. Useful Resources • PV Watts http://rredc.nrel.gov/solar/calculators/PVWATTS/version1 • NREL nrel.gov • Photon Magazine • DSIRE (Incentives by state) dsireusa.org • Berkeley Lab lbl.gov • National Clearing House for Educational Facilities http://www.ncef.org/rl/impact_learning.cfm?date=2 • Advanced Energy Design Guide – ASHRAE • Indiana incentives http://www.dsireusa.org/incentives/index.cfm?getRE=1?re=undefined&ee=1&spv=0&st=0&srp=1&state=IN

  39. Questions? www.cmtaegrs.com carol@cmtaegrs.com bturner@cmtaegrs.com 502-326-3085

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