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2012 Critical Issues Summit Energy Panel, Part III

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2012 Critical Issues Summit Energy Panel, Part III

  1. 1. Alwyn A. JohnEnergy Management Coordinator TST BOCES
  2. 2. Agenda Part I - The Basics of Energy Management – What You Need to Know Part II - Making Energy Performance Contracting Work for your District Part III - Grab Long-term Benefits from your Capital Projects 2
  3. 3. Part I“Grab Long-term Benefitsfrom Your Capital Projects” 3
  4. 4. Panel of Experts Dan Birleau  ERS Roger Smith  BBS Architects Marc Quail  TRANE William Steward  TRANE James Slavetskas  JBS PE Consulting 4
  5. 5.  Envelope Systems (Roof/Walls/Windows/Doors) HVAC, Controls and Building Automation Lighting Systems Alternative Technologies and Renewable Energy Options 5
  6. 6.  Envelope Systems (Roof/Walls/Windows/Doors) HVAC, Controls and Building Automation Lighting Systems Alternative Technologies and Renewable Energy Options 6
  7. 7. DC Brushless Technologies  Brushless technology extends motor service life and reduces maintenance  ECM up to 70% more efficient than PSC motors  Variable Speed improves Acoustics Fan Coil with ECM
  8. 8. Efficiencies  On Permanent Split Capacitor (PSC) motors, there is a significant performance degradation using multiple speeds.  Typical full load efficiencies of a motor is 55-65% at the rated voltage  In part load, these efficiencies can drop to 15-20%  On Brushless DC motors, full load Typical full-load efficiencies for fractional motors efficiencies are 70% or better  The real advantage of a brushless DC motor becomes evident at part load, where its performance edge doubles or triples
  9. 9. Acoustical Benefits  Motors can still be used with traditional thermostats  Soft Ramp between speeds  Allows the transition between speeds (H-M-L) less noticeable by occupants  Programmability  Motor speeds (RPM) can be adjusted for fan speeds (H-M- L) to minimize acoustical levels
  10. 10. Benefits of Improved IAQ  Risk Reduction  Lows health care costs associated with both VOC’s & Airborne Biologics  Better Indoor Air Quality leads to increased Contaminants productivity  Helps HVAC system performance • Virus • Bacteria • Spores  Catalytic Air Cleaner is the IAQ Solutions Provider 11
  11. 11. Building Automation Systems What they do Benefits• Improve energy efficiency  Reduce absenteeism  Improve system  Improve student test scores performance  Improve teacher retention  Improve classroom  Reduce operating costs comfort level  Taxpayer Accountability  Provide trends and analysis  Allow for proactive service  Operational and maintenance efficiency
  12. 12. “Intelligent buildings successfully merge building management and IT systems to optimize system performance and simplify facility operations”
  13. 13.  Envelope Systems (Roof/Walls/Windows/Doors) HVAC, Controls and Building Automation Lighting Systems Alternative Technologies and Renewable Energy Options 14
  14. 14. • Directional light source• LEDs are semi-conductors (non-filament source)• Extended lifetime rating (>50,000 hours)• Instant on (restrike times)• Environmentally sound (no mercury)• Cold temperature compliant – good for exterior lighting• Dimmable
  15. 15. • Wide range of: ̵Product quality ̵Claims of product life: from 50,000 hours to 100,000+ hours. ̵Efficacy: “my product is 135 lumens/W”• Long testing procedures, energy efficiency programs struggle to qualify products.• Efficacy reached 200 lumens/W in a lab setting. Best commercial products 60-80 lumens/W.• Still more expensive than the standard technologies.
  16. 16. • T5 is physically shorter and also has a different pin base.• Ambient temperature significantly affects T5 and T5HO lamp light output• Both T5 and T5HO retain 95% of light output at mean life, better than T12 and most T8 lamps
  17. 17. • T5 and T5HO luminaries cost about 20% more than T8 luminaries.• T5 and T5HO lamps and ballast are more expensive• T5HO and T8 lamp-ballast systems have nearly identical efficacy.• T8 comes in more lamps-ballast combination options: high performance (“super”) T8 T and reduced wattage T8 8 – more flexibility.
  18. 18. • Occupancy or daylighting based - On/off - Multi-level switching - Dimming• Passive infrared, ultrasonic, both• Ceiling, wall or fixture mounted• Wireless• Scheduling Controls• Most common problems: - Misapplication - Lack of or poor commissioning
  19. 19.  Envelope Systems (Roof/Walls/Windows/Doors) HVAC, Controls and Building Automation Lighting Systems Alternative Technologies and Renewable Energy Options 20
  20. 20.  Alternative Technologies and Renewable Energy Options: What are the questions that you should ask yourself and your peers before going there? 21
  21. 21.  GOAL: “The goal is for the audience to begin to ask ourselves questions about the energy efficiency of systems and how does renewable energy fit into your energy mix” 22
  22. 22. Geothermal Systems (actually arenewable – “The Earth”)1. Why do I need a system such as Geothermal?2. Do I have year around air conditioning needs throughout my building(s)?3. Do I need a new HVAC/Boiler/AC and distribution system throughout my building(s)4. How do I look at the economics associated with a new system?5. Full cost or incremental cost to upgrade?6. Have I reviewed my control system capability?7. What are the ground restrictions and quality of water associated with drilling wells?8. Is commissioning needed for the controls? 23
  23. 23. Co-Generation 1. Do I have a heat sink? 2. Will my utility rate schedule work with co- generation/load reduction? 3. What do I feel is a reasonable profile is for generating electricity? It is generally not 24/7 more like 10-12 hours per day for School buildings. 4. Do you need back up generation for my building(s)? 5. Does this size fit my load reduction size? 6. Induction vs. synchronous? 7. Am I going through an HVAC/Boiler system upgrade? 8. How are my staff skills for performing some of the routine maintenance requirements? Do you really want to take this on? 24
  24. 24. Renewable Energy Options1. What are my options?2. PV, Wind, Biomass and Geothermal3. What is the long term source of fuel for Biomass?4. How can you make it fit into my energy management plan?5. How can this “Program” within the school curriculum?6. Are financial incentives available?7. Are you expecting the Renewable energies to add significantly to your energy reduction? 25
  25. 25.  Envelope Systems (Roof/Walls/Windows/Doors) HVAC, Controls and Building Automation Lighting Systems Alternative Technologies and Renewable Energy Options 26

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