zero energy building for nrel

Download Zero Energy Building for NREL

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A joint presentation between myself and John Andary from Stantec. Covers the the process and strategies used to get this 218,000 SF office building on the NREL campus to net zero energy.

TRANSCRIPT

  • 1. Bob Fox, Haselden Construction John Andary, PE, LEED AP, Stantec Tom Hootman, AIA, LEED AP, RNL Department of Energy National Renewable Energy Lab Research Support Facilities (RSF)

2. Design Build Team Haselden Construction RNL:Architecture, Interiors, Landscape, Lighting Stantec:MEP, Energy Modeling KL&A:Structural Martin/Martin:Civil AEC:LEED, Daylight Modeling Namaste Solar:Solar Consultant 3. Project Objectives SafetyLEED PlatinumEnergy Star 1. Mission Critical 4. Project Objectives 2. Highly Desirable 800 staff Capacity 25kBTU/sf/year Architectural integrity Honor future staff needs Measurable ASHRAE 90.1 Support culture and amenities Expandable building Ergonomics Flexible workspace Support future technologies How to manual Real-time PR campaignSecure collaboration with outsiders Building information modeling Substantial Completion by 2010 5. 3. If Possible Net zero design approach Most energy efficient building in the world LEED Platinum Plus ASHRAE 90.1 + 50% Visual displays of current energy efficiency Support public tours National and global recognition and awards Support personnel turnoverProject Objectives 6. DOE Goal

  • To create the technology and knowledge base for cost-effective zero-energy commercial buildings (ZEBs) by 2025.
  • The NREL RSF:
  • Replicable
  • Commercially viable
  • How To Manual for DOE

7. ZERO ENERGY BUILDING 8. Integrated Design

  • Multiday Eco-Charrette
  • Kicked off competition phase of the project
  • Included all disciplines in design-build team
  • Set zero energy goal
  • Determined ZEB and LEED Platinum best practices and strategies
  • Developed section first
  • Explored relationship of site, program, plan, roof and section for ZEB strategies
  • Began early building simulations

9. Zero Energy Strategies 10. The Section PV System Natural Ventilation Thermal Mass UFAD Labyrinth Transpired Collectors Radiant Cooling Radiant Heating Workplace Daylighting 60 11. 1 2 3 4 Floor Plans 12. Site Plan RSF RSF Parking 13. Massing 14. East +West Orientations 15. Zinc Pre-castConcrete TranspiredCollector Exterior Materials 16. Daylighting 17. Daylighting 18. Daylighting Glare Control + View Window Daylight Control + Daylight Window Daylight Enhancement 19. Daylight Modeling 20. Daylighting - Shading 21. Daylighting - Shading Aluminum louver in aluminum frame Aluminum plate window box 22. Natural Ventilation - Summer Day 50 F to 75 F 23. Windows / Natural Ventilation Typical South Bay 23% WWR Typical North Bay 26% WWR 24. Manual Auto South North Auto Manual 4 FT Windows / Natural Ventilation 25. Workplace - Interiors 26. Workplace - Interiors 27. Workplace - Interiors 28. Cost / Construction Modularity 29. Cost / Construction Modularity 30. ZEB Definitions 31. ZEB Definitions Net ZeroSite EnergyBuilding Net ZeroSource EnergyBuildingNet ZeroEnergy CostBuilding Net ZeroEnergy EmissionsBuilding 32. ZEB - Renewable Energy 33. The Section - PV 34. 787 KW 540 KW Photovoltaic System 35. Overview of the PPA Process Building Owner Solar Developer Utility Company

  • Gets clean, renewable energy
  • Gets a competitive long term power contract
  • Provides roof or site area for PV
  • Gets 30% Federal tax credit
  • Gets Solar RECS from Utility
  • Gets 20 year contract for power
  • Installs and maintains equipment
  • Gets to claim renewable energy toward renewable portfolio standard
  • Provides net metering

36. LEED Platinum 58 37. Integrated Design 38.

  • Shading Studies
  • Energy Demand
  • Natural Ventilation
  • Wall Sections
  • Window / Wall Ratios
  • Roof / Floor Ratios
  • PV Energy Supply

Pre-Concept Analysis 39. Integrated Design Let there be light! 40. Integrated Design 60 Poor MansDouble Skin Facade 41. Winter Mode 42. Summer Mode 43. 44.

  • Total cost same
  • Engineering costs less
  • Invest in Architecture
  • Active to passive
  • Fragile to robust
  • Longer life
  • Less cost over life
  • Simpler

Cost Transfer Integrated Design 45. 46. WINDOW SUNSHADE PRE-CAST SANDWICH PANEL: 3 CONCRETE 2 RIGID INSULATION 6 CONCRETE LIGHTLOUVER BOUNCES LIGHT DIRECTLY INTO ROOM WINTER SUN SUMMER SUN COOL AIR DOUBLE PANE LOW-E GLASS TRANSPIRED COLLECTOR 47. Labyrinth 48. Labyrinth 49. Labyrinth + Transpired Solar Collector 50. Design Simulations

  • Energy Demand
  • Transpired Collectors
  • Thermal Labyrinth
  • Double Skin Design
  • Data Center Heat Recovery
  • Data Center Cooling
  • Natural Ventilation
  • Daylighting

51. ZEB - Renewable Energy RSF ROOF 787 KW 3544 MBTU/YR RSF PARKING 540 KW 2432 MBTU/YR HEATING PLANT (WOOD CHIP) 1105 MBTU/YR GREEN POWER (GRID) 4838 MBTU/YR 52. ZEB - Renewable Energy RSF ROOF 787 KW 3544 MBTU/YR RSF PARKING 540 KW 2432 MBTU/YR Meets Site Energy, Source Energy, Energy Emissions and Energy Cost definitions of ZEB with only the roof and parking PV systems. 53. Beauty in the Numbers Zero