Energy Modeling 2009 Presentation
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Transcript of Energy Modeling 2009 Presentation
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“LEEDership for Sustainability”
“GREEN BUILDING”-Not the conversation of a decade ago
• Accreditations: CHEERS, HERS Rater, Sustainable Building Advisor, CGBP, LEED AP• Members: USGBC Northern California Chapter, Emerging Green Builder, Architecture 2030, BOMA, RESNET
-Matt Macko
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Energy Modeling
Lee Eng Lock – “Almost anything that uses energy needs to be looked at with a new pair of eyes”
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People Don’t Want Energy
Hot Showers Cold BeersThey Want:
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AB 1103• Assembly Bill
– Requires electric and gas utilities to maintain records of building energy consumption
– Moving the industry toward better building efficiency– California Wide – Existing Stock
• Portfolio Manager– ENERGY STAR Score– Same as LEED EBOM
• 2010 you will see the effect
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Who?• Who is modeling for?
Its for EVERYONE on EVERY project whether LEED or
notNumerous studies have shown there are no day lighting or energy
benefits with window-to-wall ratios over 60 percent25 and 40 percent is optimum Yet we continue to build glass boxes
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When? - Early
• When just 1% of a project’s up front costs are spent…up to 70% of its life-cycle cost may already be committed.” – Joseph Romm, energy expert
• A couple thousand up front can pay for itself in the first couple months
• Small 4 story Soma building – built 2001– Monthly spending $20,000 on energy
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What?• DOE2
– DOE2 1e-Visual DOE– eQuest– EnergyPro– HAP-Carrier– Trace– Energy 10• Weather maker• Energy Plus• TRYNSYS• Green Building Studio– Its not just Title 24 calcs• Studies show the most effective models come from outside 3rd parties –
and rarely from engineering firms
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Graphical User Interfaces
• Makes energy modeling easy to use• We used to text edit for DOE Simulations• DOE – working to develop better GUIs
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Energy Modeling Benefits in Each Phase?
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Load Reduction
Renewable
Efficiency
Water
Waste
En
erg
y
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Energy Modeling Basics
Reduced Glazing Area
Shading
Landscaping
Building Orientation
Natural Resources
Heat Island Reduction
Mechanical
Energy EfficiencyTemperature
Humidity
Occupancy
Plug LoadsLighting
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Energy Modeling Advanced
Appropriate Shading Device
Solar
PassiveHeating/Cooling
Cool Roof
Green Roof
Fenestrations
Energy Efficiency
Geo ThermalWind Turbines
Low E
Emissivity
LPD
Thermal Storage
Spectrally Selective
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What’ Next?
AB 32 Title 24 2008AB 811 ASHRAE 2007AB 1103 Architecture 2030Transportation Bill Carbon Cap & Trade
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Strategies• Energy Efficient Measures
– Often an Existing Building term • Need to be thought of in the same sentence
– www.eere.energy.gov– www.fypower.org– www.dsireusa.org– www.doe.gov– www.fishnick.com (Commercial Kitchen)
• 3000 - only 800 have received a basic energy audit• Pacific Energy Center
• Upcoming classes