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Renewable Energy: The Time Has Come

Renewable Energy: The Time Has Come. A Project of Appalachia – Science in the Public Interest. Appalachia – Science in the Public Interest. www.kysolar.org. www.a-spi.org www.kyses.org www.ases.org. Sustainable Energy Training Series. Renewable Energy’s Time Has Come.

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Renewable Energy: The Time Has Come

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  1. Renewable Energy: The Time Has Come A Project of Appalachia – Science in the Public Interest

  2. Appalachia – Science in the Public Interest

  3. www.kysolar.org www.a-spi.org www.kyses.org www.ases.org

  4. Sustainable Energy Training Series

  5. Renewable Energy’s Time Has Come

  6. In 2008, for the first time the US & Europe both added More New Renewables capacity than Conventional Sources, including Coal, Nuclear, and Gas

  7. Installed US Wind Capacity (MW) Total Power Capacity: 36,303 MW As of July 2010 Source: www.awea.org

  8. U.S. Wind Energy Potential

  9. Wind Resources • Need to be evaluated based on modern technology • People often cite to 50 meter hub height wind resource map • Modern turbines are 80 to 120 meter hub height where wind resources are stronger

  10. Since 2008 Indiana has developed over 1000 MW of wind farms in areas classified as poor wind sites on older wind maps. • Kentucky needs research on wind speeds at 120 meters above the ground.

  11. Small Wind Systems • Collect data for 12 months using an anenometer to assess wind potential at your site. • Or, install a small turbine and measure its output.

  12. Global Solar PV Capacity Increased 70% in 2008 Source: Renewables Global Status Report, 2009 Update. www.ren21.org

  13. World Solar Thermal Capacity Increased 15% in 2008

  14. Solar Thermal Technology is Widely Used Around the World Germany installed 200,000 Solar Water Heaters in 2008

  15. Global PV Market Demand 2008 Source: www.PV-Tech.org Spain Germany

  16. Source: ESTIF, January 2007 USA, 0.5%

  17. But Is Solar Energy Feasible in Kentucky? ?

  18. YES – Solar Works in Kentucky!

  19. U.S. Solar Resource Map Kentucky has good solar energy resources

  20. In 2006 Germany Led World in Solar PV Investments… …and has solar resources similar to Alaska. Germany

  21. Solar Energy Technologies • Passive Solar Heating & Cooling • Active Solar Thermal – solar heating & cooling, solar water heating, dehydration, distillation • Solar Electric – Photovoltaics (PV)

  22. Where to Start? Conservation & Efficiency! www.energystar.gov Source: www.vam.ac.uk

  23. Solar Site Assessments

  24. Solar Site Assessments • Energy load analysis • Site analysis – study solar access • Physical facilities – condition of building

  25. Solar Photovoltaics (PV) or Solar Electric Systems

  26. Solar Electric System Types • Stand-Alone Systems • Grid-Intertied and Net-Metered Systems

  27. Stand Alone PV Systems

  28. Grid-Intertied PV Systems

  29. Estimating PV System Size & Costs www.findsolar.com http://rredc.nrel.gov/solar/calculators/PVWATTS/

  30. Estimating PV System Size & Costs In Kentucky, a 1 kW grid intertied PV array can generate about 1,200 kWh/year Installed System Costs Range: Grid-intertied: $6 - $8 / watt Off-grid with battery back-up: $12 - $20/watt PV production per square foot: Approx. 10 watts/ square foot

  31. PV Costs • 40 year operational life • Installed cost : $6 - $8/watt (Less for large systems) • Lifecycle cost per kWH $0.16 - $0.20/kWh With 30% Federal Tax Credit $0.12 – $0.14/kWh

  32. Solar Water Heating

  33. Residential Applications for Solar Water Heating • Domestic Water Heating • Swimming Pool Heaters • Space Heating

  34. Commercial & Public Applications • Hotels • Schools • Laundries • Car Washes • Restaurants • Dormitories • Industrial Facilities Mt Vernon, Ky Frankfort, Ky Frankfort, Ky

  35. Solar Water Heating System Basics • Freeze Protection • Solar thermal collectors need full sun, year round, 10am – 2pm • Hot water storage • Active Indirect Systems • Heat Exchangers Used

  36. Basic Components

  37. Graphic Source: SOLAR WATER HEATING by Bob Ramlow & Benjamin Nusz Pressurized Glycol Solar Water Heating System

  38. System Sizing & Costs • Minimum 1.5 gallons storage per square foot collector • Typical Residential System • 32 sf – 80 sf collector area • Average Residential System Cost, Installed: • $5,000 - $6,500

  39. Residential Solar Water Heater Financial Summary Initial Cost: $5,250 Federal Tax Credit: $1,425 State Tax Credit: $500 Return on Investment: 11.9% Years to positive Cash Flow: 11 Annual Energy Savings: 2,400 kWh/yr Greenhouse Gas Emission Savings: 3 tons/yr Cumulative Cash Flow Years

  40. Illustration of How to Combine Efficiency, Conservation & Solar

  41. Certifications • NABCEP • North American Board of Certified Energy Practitioners www.NABCEP.org Solar PV & Solar Thermal Installer Certification Program

  42. SRCC • Solar Ratings & Certification Corportation www.solar-ratings.org Testing & certification for solar water heater collectors and package systems

  43. Solar Training & Education Cincinatti State Technical College www.the-mrea.org www.SolarEnergy.org www.ucf.fsec.org www.ncsc.ncsu.edu

  44. Information Resources • The Kentucky Solar Partnership • www.kysolar.org 502-227-4562 • 1-888-576-6527 • solar@kysolar.org • Appalachia – Science in the Public Interest • www.a-spi.org 1-606-256-0077 • “The Kentucky Solar Energy Guide” at www.kysolar.org

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