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Solar Energy

Solar Energy. Solar Energy Overview for NIFA Presented by Michael Shonka. Goals. By the end of this presentation you should be able to; understand the definitions for the three types of solar systems - air, water and electric, validate the cost effectiveness of solar and

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Solar Energy

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  1. Solar Energy • Solar Energy Overview • for NIFA • Presented by • Michael Shonka (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  2. Goals • By the end of this presentation you should • be able to; • understand the definitions for the three types of solar systems - air, water and electric, • validate the cost effectiveness of solar and • understand solar sufficiently for project ROI. (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  3. Renewable Energies • Nebraska imports 99% of its energy • Hydropower (1% of Nebraska’s energy source) • Solar – 10th nationally • Wind – 3rd nationally • Biomass – methane recovery • Geothermal – mostly heat pumps (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  4. Types of Solar: Thermal and Electric Solar Thermal – Warm Air - hollow collectors Hot Water - copper absorbers Solar Electric – silicon and polymers Used in all markets – residential, commercial, and industrial (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  5. Solar Warm Air Systems Best use: daytime space heating Secondary: domestic hot water Cost: least expensive Recommendations: One 4’x8’ collector for about 400 ft2 with short duct runs. Usually have a minimum of two collectors. (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  6. Solar Air – 5 Collectors, 3 Zones (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  7. Solar Hot Water Systems Best use: domestic hot water Secondary: storage and space heating Cost: low to moderate Recommendations: Minimum of two 4’x8’ collectors with 60-80 gallon tank for closed loop or drainback systems. Add more for space heating. (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  8. s (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  9. (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  10. (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  11. Solar Hot Water & Storage System (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  12. Solar Hot Water - Condos (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  13. Solar Hot Water - Apartments (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  14. Solar Hot Water - Hospital (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  15. Radiant Floor Layout – Solar Heating (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  16. Solar Electric Systems Best use: lighting, electronics, remote applications, back-up power Secondary: stand alone or utility intertie Cost: moderate to high Recommendations: Excellent for running other solar components (controller and either blower or pump). Very good for remote lighting and water pumping if power is cost prohibitive. (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  17. Residential Solar Electric System (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  18. 4.8 kW grid tied solar electric system (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  19. How can solar be adopted more widely? Drive consumer demand, awareness, solutions: High gas prices help… especially natural gas Solar and energy conservation education Muni and utility promotions; bond issues State and federal tax credits – balances market Investment capital for projects with good ROIs Federal and private research funds Move from centralized to decentralized systems (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  20. Evaluating a Project’s Solar Potential • 1. There has to be a demand for heat or electric in the building or manufacturing. • 2. There has to be a sunny area facing south for the collector placement. • 3. Check the numbers - compare the installation and credits to the savings. (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  21. Solar Tax Credit • Residential • 30% of solar hot water • 30% of solar electric • Carry back one year, forward three years • Applies to second homes also • Usually breaks even in 5 years • Commercial • 30% of solar installation - no limit to investment • Carry back one year, forward three years, allows for third party leases, energy investors • Very flexible financial tools • ROI up to 8% (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  22. Solar Evaluation and Installation Process • Solar application is studied – hot water (or electric) • - data collected on usage, utility rates, building, … • - calculate project cost and returns • Present project to building owner / investor for evaluation • Commission to proceed with design and financials • Contract between building owner and investor • - building owner purchases discounted energy • - investor installs, maintains system, receives credits (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  23. Future Trends • Continued development of large scale, expensive and centralized systems – requires re-alignment of incentives • Increasing development of smaller scale, mixed investment and distributed systems using renewable technologies (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  24. Solar and Renewable Energies For more information: www.NebraskaSES.org Michael Shonka www.NEO.ne.gov 402-590-5900 www.energy.IOWA.gov mshonka@qwest.net www.mccneb.edu/solar www.solaromaha.com www.NREL.gov (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

  25. (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com

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