net zero and beyond - part 3 - process and projects/media/files/cdd/... · statistical analysis...
TRANSCRIPT
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Process & Projects
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annual net zero energy profile
NZE| Energy Use and Production
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statistical analysis
COMMUNITY CENTERSstatistical analysis early data
From The Power of Zero: Optimizing Value for Next Generation Greenby Integral Group, BNIM, Davis LangdonDraft May 2013
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statistical analysis
K‐12 SCHOOLSstatistical analysis early data
From The Power of Zero: Optimizing Value for Next Generation Greenby Integral Group, BNIM, Davis LangdonDraft May 2013
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statistical analysis
OFFICE BUILDINGS – LOW‐RISEstatistical analysis early data
From The Power of Zero: Optimizing Value for Next Generation Greenby Integral Group, BNIM, Davis LangdonDraft May 2013
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statistical analysis
WET LABstatistical analysis early data
From The Power of Zero: Optimizing Value for Next Generation Greenby Integral Group, BNIM, Davis LangdonDraft May 2013
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NZE Approach – Plug Loads
First Address:• Building Envelope, • Lighting, & then • HVAC
Finally Address:• Plug Loads
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NZE Approach – Plug Loads
Plug Load Inventory & Analysis
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NZE Approach – Plug Loads
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Reduce Plug Loads by 50%
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NZE Case Study: Ideas Z-Squared Office
existing buildings can be re-purposedold branch bank to NZE Office
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NZE Case Study
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Better quality light, higher productivity, saves lighting energyNeeds to be designed and modeled to ensure quality strategies:
• Courtyard brings daylighting to deep interior• Organize occupied spaces near courtyard• Toplighting• Small aperture skylights with wells to distribute• Side lighting—windows…placed with consideration for tilt up
NZE Case Study: Ideas Z-Squared Office
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49,000 sf Office Building70% less energy use than
ASHRAE 90.1-200718 kbtu/sf/yr
David & Lucille Packard FoundationNet Zero Energy Headquarters Building
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3D VIRTUAL BUILDING – “REVIT MODEL”
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BUILDING MEP MODEL OVERLAY
Dedicated Outdoor Air Systems
Cooling Tower
Chilled Water Thermal Storage
Chilled Beams
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Exterior Motorized ShadesSouthwest OrientationBlinds lower in afternoonAnd rotate to maintain zero light penetrationWhile maintaining views to courtyard…
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HIGH PERFORMANCE TRIPLE ELEMENT WINDOWS
+ $75,000 Premium for installed glazing
‐ $150,000 Eliminate perimeter heating system
= $75,000 first cost savings
plus $300,000 (35kW) in PV system downsizing
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NET ZERO AFTER NINE MONTHS…
http://www.packard.org/about-the-foundation/our-green-headquarters/energy-reports/
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