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Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
Looking for Energy Savings In All The Right Places - Eric Oliver
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Looking for Energy Savings In All The Right Places - Eric Oliver

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EMO Energy Solutions …

EMO Energy Solutions
Eric M. Oliver, PE, CEM, LEED-AP
President
Looking for Energy Savings In All The Right Places

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  • Transcript

    • 1. Eric Oliver, PE, CEM, LEED AP President EMO Energy Solutions, LLC www.emoenergy.com March 3, 2009
    • 2. Energy Efficiency Overview US Dept of Energy CBECS
    • 3.
      • An analysis of office buildings that have earned the Energy Star label show that they cost $1.20 per sq ft to operate, compared with an average U.S. office building that operates at about $2.00 per sq ft.
        • Savings of $160,000/year for 200,000 ft 2 office building
      • Most packaged Energy Upgrades will have a Simple payback of 4-6 years for the investment cost
        • Equivalent to a 20% IRR
    • 4.
    • 5. Inside the meter…
    • 6. For Design of New Buildings- Energy Modeling
      • Tool for smart, energy efficient design
      • Predicts energy consumption of building every hour
      • Uses basic engineering/heat flow/power equations
        • Conduction through walls/roof
        • Solar gain through windows
        • Calculation of all internal heat gains
        • Thermal mass/time lag
    • 7. For Existing Buildings – Perform an Energy Audit
      • Utility Consumption analysis
      • Energy survey by qualified professionals
      • Identification of opportunities
      • Development of Energy Conservation Measures and Audit Report
      • Life Cycle Costs and Benefits
      • Energy Awareness presentation
    • 8.
      • Walk-through versus full-scale audit
      • Comprehensive energy assessment
        • Performed by a qualified energy service provider
        • Monitor and measure
          • Air temperatures
          • Water flow rates and temperatures
          • Electric demand of mechanical equipment
          • Run times of lighting
        • Assess O&M strategies, interview maintenance staff
        • Develop detailed energy conservation measures
        • Onsite renewable energy opportunities
        • Detailed cost/savings estimates for improvements
    • 9. Develop Energy Conservation Measures (ECMs)
      • Three-stage upgrade process
      • Stage 1: Minimize Building Loads
      • Stage 2: Improve System Effectiveness
      • Stage 3: Optimize Resource Delivery
    • 10. 1. Minimize Building Loads
      • This Includes:
      • Improve building envelope (R-value, heat gain/loss)
      • Reduce Internal Heat Gains
        • Lighting power density (W/sqft) & usage
        • Equipment power density (W/sqft) & usage
      • Reduce Infiltration
    • 11. 2. Improve System Effectiveness
      • Air Distribution
      • Cooling
      • Heating
      • Heat Recovery
      • Direct Digital Controls
      • Electrical Systems
      • Service Hot Water
      • Process Systems
    • 12. 3. Optimize Resource Delivery
      • Incorporate renewable energy technologies
      • Incorporate energy storage techniques
      • Investigate cogeneration
    • 13. Building Envelope
      • Improve Wall & Roof Construction
        • Insulation levels
        • Surface absorption
        • Thermal mass
      • Improve Windows
        • Double Glazing or storm windows
        • Low-e coatings
        • Spectrally selective coatings
        • Utilize shading techniques
          • Block solar penetration during the cooling season
          • Allow solar gain during the heating season
    • 14. Lighting Technology
    • 15. Air Distribution
      • Variable Air Volume Energy Savings
      Constant volume 1250 cfm 1250 cfm 1250 cfm Supply 3750 cfm Variable volume 450 cfm 1050 cfm 650 cfm Supply 2150 cfm SP VSD
    • 16. Cooling
      • Spot, window, air-cooled – typically 1.0 – 1.5 kW/ton
          • Chillers (30-tons +)
            • Before 1990: 0.9 kW/ton
            • 1990-1995: 0.7 – 0.9 kW/ton
            • New HE: 0.4 - 0.6 kW/ton
                                                                                                   
    • 17. Heating
      • Standard existing : 60% efficient 40% wasted energy
      • Standard new: 80% efficient
      • Energy efficient: up to 95% efficiency
          • Pulse condensing steam boilers
          • Pre-heat combustion air
          • Insulated tanks and pipes
          • Efficient burners
    • 18. Ground Source Heat Pumps
      • Closed loop pipes buried underground to transfer heat
      • Water loop heat pumps
      • provide cooling or heating
      • inside the building
      • 40% to 60% less energy
      • than chiller/boiler system
    • 19. Heat Recovery Strategies
      • Air/air heat exchangers
        • Flat plate
        • Enthalpy wheels
          • Not to be used for lab exhaust
          • Transfer heat & humidity between exhaust/supply
      • Air/water heat exchangers
        • Run-around coil loops
          • No cross contamination
        • Heat pipes
    • 20. Ways to Save Energy
      • Unoccupied Settings
      • Lighting schedules
      • Chiller optimization
      • “ Enthalpy Control”
      • Boiler optimization
      • Smart controls
      Enthalpy - measure of combination of temperature and humidity of air
    • 21. www.emoenergy.com
      • Solar cells are one of the most environmentally safe ways of generating electricity
      • Installing a 1 kW photovoltaic system reduces CO 2 by over 2600 lbs annually
      • Prices are expected to decrease significantly as manufacturing techniques improve
      Brand Power Output Warranty Retail Price System Cost Siemens Solar 63W per panel 25 years $436 / panel 30.1 cents/kWh BP Solar 75W per panel 20 years $499 / panel 34.2 cents/kWh AstroPower 75W per panel 20 years $400 / panel 29.7 cents/kWh
    • 22. Wind Power
      • Where is there good wind?
    • 23. Energy Tax Credits
      • Solar and Wind power:
        • 30% tax credit of installed costs (no limits in new bill)
      • New building energy efficiency credit:
        • $1.80/ft 2 if Whole building is 50% more efficient than basecase based on Energy Model
        • Partial credits for building subsystems (Lighting, HVAC and Hot Water, or Building Shell)
      • Existing building energy efficiency credit:
        • $1.80/ft 2 if Lighting, or HVAC and Hot Water, or Building Shell is retrofit or replaced with a new system that is 50% more efficient than allowable by ASHRAE 90.1-2001.
        • Lighting is retrofit or replaced with a new lighting system that is 25% more efficient than allowable by ASHRAE 90.1-2001.
    • 24. Existing Building Energy Upgrade Project * with tax credits Description First Cost Annual Savings Payback Lighting Upgrade $65,000 $21,000 3.1 yr Install programmable thermostats $12,000 $8,500 1.4 yr Chiller Replacement $95,000 $27,000 3.5 yr Improve Boiler Combustion efficiency $1,500 $2,000 0.8 yr Insulate hot water pipes $3,000 $500 6.0 yr Install door thresholds $450 $140 3.2 yr Install Variable Speed Drives on fans $24,500 $9,500 2.6 yr Replace standard efficiency motors for chilled water pumping $2,300 $550 6.2 yr * Install 10 kW photovoltaic array $40,000 $1,600 25.0 yr Total $243,750 $70,790 3.4 yr
    • 25. Thank you!
      • Eric Oliver, PE, CEM, LEED AP , President
      • EMO Energy Solutions, LLC
      • www.emoenergy.com

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