1. SOLAR ENERGY Max D. Lechtman Paul W. Spinner October 28,2005

2. 1/17,000 of the Sun’s Output! According to John

3. To paraphrase Dennis: Economics be damned, we have to reduce our usage of fossil fuels.

4. Max will discuss Concentrating Solar Power Technologies Passive Solar Considerations Solar Tidbits

5. CSP Technologies “…enough electric power for the entire country could be generated by covering about 9% of Nevada—a plot of land 100 miles on a side– with parabolic trough systems.” www.energylan.sandia.gov/sunlab/overview.htm

6. DOE’s CSP Technologies Troughs Dish/Engines Power Towers

7. Troughs

8. Suitable For Large Systems Grid-connected Power 30-200 MW size Proven Technology Available Today

9. Dish/Engines

10. Modular Remote Applications Demonstration Installations High Efficiency Conventional Construction Commercial Engines Under Development

11. Sterling Engine

12. Stirling Engine

13. Power Towers

14. Suitable For Large Systems Grid-connected Power 30-200 MW size Potentially Lower Cost Potentially Efficient Thermal Storage Need To Prove Molten Salt Technology

15. Cost Of Energy* TroughDish/EngineTower 200011.8 17.913.6 2010 7.6 6.1 5.2 2020 7.2 5.5 4.2 2030 6.8 5.2 4.2 *Cents/kWh in 1997 $

16. Selected Passive Systems House Design Features –Overhang –Trombe Wall –Roof Vents –Solar Hot Water –Rock Bin –Earth Cooling

17. Solar Collection/Rejection

18. Solar House Features

19. Design for Solar

20. Design for Earth Cooling

21. Solar Tidbits Military –Tent and Uniform Fabrics –Pocket Battery Chargers Civilian –Backpacks –Radio Headsets –Wi-Fi in the Sky Time Magazine, October 31, 2005

22. Paul will discuss Alternate Energy Sources Applications Limitations Drivers Indicators

23. Alternate Energy Sources- Historical Nuclear Hydroelectric Geothermal Rooftop Water

24. Alternate Energy Sources - Evolving Biomass (Ethanol, digesters) Wind Solar Reflector Arrays (Driven, Stationary) Photo-Voltaic (Panels)

25. Applications - Solar Power Remote power (Space, Wirefree ) Architectural SmallCommon Electronics Emergency Military Grid supplements

26. Limitations High Cost Climate “Thin” - “Off” Daily Require Storage Duplication Big Footprint

27. Who/What Drives Expansion Now? Competitive Costs Legislation (Subsidies) Utilities (Rebates) Emergencies Environmentalists Scientists (Union of Concerned) Oil Companies (BP/Exxon) Politicians (Some)

28. Potential Drivers “Carbon Discharge” Tax Research Money (Public/Private) “Gas Guzzler” Tax Auto-maker Mileage Standards (SUV’s) Storms

29. Current Affairs - Indicators? California Governors‘ ”One MillionRooftop Solar Homes“ DWP’s Rebates ($!50-$300 Million) Negative Federal Thrust - “More/Cheaper Fossil Fuel” Doesn’t Help Solar Energy -Aggravates Climate Warming

31. Reading List General Information: –www.ases.orgwww.ases.org –www.eere.energy.gov/RE/solar.htmlwww.eere.energy.gov/RE/solar.html –www.eere.energy.gov/solar/www.eere.energy.gov/solar/ –www.homepower.com/www.homepower.com/ –www.solarelectricpower.org/power/www.solarelectricpower.org/power/ –www.solarenergy.net/www.solarenergy.net/ –www.txses.org/epsea/www.txses.org/epsea/

32. Reading List For the Engineers: –http://scitation.aip.org/dbt.jsp?KEY=JSEEDhttp://scitation.aip.org/dbt.jsp?KEY=JSEED Journal of Solar Engineering 2000-2005 For the third world: –www.self.org/www.self.org/