The Latest Energy Technology to Reduce Your Energy Consumption
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Transcript of The Latest Energy Technology to Reduce Your Energy Consumption
Best Practices: Using the Latest Energy Technology to Reduce Your Energy Consumption
6th Annual Northern Ohio energy Management Conference
Bob Misbrener – Kent State UniversityH. Kelly Tisdale – The Brewer-Garrett Co.
September 28, 2011
AgendaCurrent Technologies
LightingBuilding AutomationWater ConservationGreen EducationRenewable
Future TechnologiesLightingBuilding AutomationRenewable
Questions
Current Best Practices - Lighting•Fluorescent lighting• 25w fluorescent lamps with 2nd generation electronic ballasts
• High CRI of 85+• < 10% lamp lumen depreciation over life of the lamp• Drastically improved lamp life approaching 50,000 hours in some cases
• Efficacies now above 100 lumens/watt• Extremely low mercury content, as low as 1.7 milligrams
Current Best Practices - Lighting• T5HO fluorescent highbays to replace interior HID• High CRI of 85+ vs. 60 with standard metal halide and 20
with high pressure sodium• 5% lamp lumen depreciation vs. up to 60% loss with HID• Long lamp life: 36,000 Hours vs. 20,000-24,000 with HID• Fixture efficiencies over 90%• Instant restrike vs. up to 15 minutes with metal halide
LED lighting• Low maintenance exit signage• Downlights with drastically increased fixture efficiencies• Exterior lighting with greatly improved uniformity, lumen
depreciation and CRI
Current Best Practices - AutomationCO2 control
Large/common spacesOnly conditions outdoor air as needed800 ppm above ambient (typically 250 ppm)
VAV control with occupancy sensorsMany times occupancy sensor exists on
lightingTurn off minimum airLowers fan speedLowers quantity of outdoor air
Payback
Current Best Practices – Water Conservation
Sub-metering – cooling towers, sprinkler systems Less than 1 year payback
Fixture change outUrinals 1 gal. to 1 pintToilets 3.5 gal. to 1.2 gal.5 to 10 year payback
Water automationLimited consumption savings but may have
additional benefitsWater cooled condensers
Payback 5 years or less
Current Best Practices – Green Education
Must be able to operate systems installedTrain maintenance staff
Educate staffKnowledge is savingsA knowledge of “impact of actions” (i.e.- what it
costs to leave lights on); create actionOngoing trainingTypical savings may be 3% to 6% of entire
utility bill
Current Best Practices - RenewableSolar
Power Purchase Agreements (PPA)Subsidies are diminishingSales of SRECs Looking for future subsidies – without
subsidies the payback may be 25 to 50 years
Examining Energy Conservation Opportunities
Future Best Practices - LED Benefits / ConcernsOperational savings
Reduced recycling costs, extremely long life, vibration and orientation proof
Energy and HVAC savings – Up to 50% in some casesInstant-on capabilities0-100% dimmabilityColor changingExceptional lamp lumen depreciationNo UV, No IR, No MercurySmall size allows for many new designs and ideas from the
ground up that could not have been possible beforeDrawbacks?COST!Glare issues if not properly applied or designed
Established Types of LED ProductsGeneral Illumination Replacements
Incandescent Halogen Downlights Linear
Landscape Architectural Signage Area
Technologies - OLEDOLED Technology
Building Automation
Future Best Practices- AutomationWireless technologyGoogle
OEMEnOcean
Small packets of informationEnergy harvesting Vast / expanding suppliers
ZigbeeOlder but playing catch-up with energy
harvesting
Future Technologies – Thin Film Solar
Printing solar filmsPromise of low cost = $1 per wattIncrease efficiencies
Future Best Practice –Honeywell Wind Turbine
1500 kWh$50002 mph cut–in speed
Future Best Practice –Honeywell Wind Turbine
Turn traditional design inside outMultiple mounting options
26 kW systemsProven exothermic Stirling enginePeak followingGrid level production
Future Best Practices – Stirling Energy Systems
Future Best Practices –Solar Power and the Fuel Cell
Solar panels used for electrolysisHydrogen and Oxygen recombine in fuel cellHeats domestic waterPower availability very high – closed loop
The End