Moving to High Performance Design
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Discussion on use of the Integrative Design Process (a new credit in LEED v4) to get to high levels of sustainable performance using a LEED Platinum project as an example
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Moving to High Performance Design
- 1. Design Group April 30, 2014 Moving to High Performance Design
- 2. Carey Nagle BNIM Architects Scott Bowman KJWW Engineering Many slides are courtesy of BNIM Architects – Not all are referenced
- 5. Efficiency
- 7. REGULATORY PRESSURES Codes and Standards
- 8. Measure Performance? • ASHRAE Standards (90.1) • Energy Star • Code (IECC) • LEED • IgCC • Green Globes • BREEAM
- 9. DOE 30% Reduction Target Courtesy PNNL ASHRAE 90.1-2013? ASHRAE 90-1975 ASHRAE 90A-1980 ASHRAE 90.1-1999 ASHRAE 90.1-2001 ASHRAE 90.1-2007 ASHRAE 90.1-2004 ASHRAE 90.1-1989 ASHRAE 90.1-2010 ASHRAE Standard 90.1EnergyUseIndex(1975Use=100) Year 1970 1975 1980 1985 1990 50 1995 20152000 20102005 110 100 90 80 70 60 14% 4.5% .5% 12.3% 4.5% 18.5%
- 11. MOVING TO HIGH PERFORMANCE Integrative Design
- 12. © 2 0 1 2 B N I M © 2 0 1 2 B N I M
- 13. © 2 0 1 2 B N I M Owner Architects Consultants Utility Companies INTEGRATE = UNITE COLLABORATION + INTEGRATED DESIGN PROCESS
- 14. © 2 0 1 2 B N I M Use Less • Reduce Loads • Passive • Envelope Use Efficiently • System Selection • High Efficiency Make On Site • Renewable Energy • Portal to Future
- 15. Energy Modeling • Key to High Performance • Important to understand interaction • Many approximations – manage expectations • Know limits of software • Understand gross assumptions! • Move from isolated evaluations to bundling • Set early goals – Measure against them often!
- 16. 23% 44%
- 17. 42% 15% 21%
- 18. Why kBtu/sf • ASHRAE currently uses energy cost • Dollars reflect some local energy utilization and market conditions • Suppressed sources can obscure signals – Natural Gas – Renewable Energy (Wind or Solar) • Need to measure true performance • Location, Location, Location – 28 kBtu/sf means something in Iowa – What about Portland?
- 19. © 2 0 1 2 B N I M © 2 0 1 2 B N I M
- 20. © 2 0 1 2 B N I M Integration Leads to High Performance Iowa Utilities Board / Office of Consumer Advocate State of Iowa
- 21. © 2 0 1 2 B N I M Total EUI : 28.0 kBtu/sf/yr % Reduction from code base EUI 60% Model for other government & private sector entities LEED Platinum VISIONARY GOALS
- 22. © 2 0 1 2 B N I M Building Area 44,640 GSF Cost $204 Per GSF MODEST BUDGET
- 23. © 2 0 1 2 B N I M REPLICATION + INNOVATION REPLICATION INNOVATION • Passive Strategies First • Orientation + Planning • Shallow N-S Footprint depths • Daylighting • Natural Ventilation FLOOR PLAN
- 24. © 2 0 1 2 B N I M REPLICATION + INNOVATION REPLICATION INNOVATION • Passive Strategies First • Orientation + Planning • Shallow N-S Footprint depths • Daylighting • Natural Ventilation FLOOR PLAN
- 25. © 2 0 1 2 B N I M
- 26. © 2 0 1 2 B N I M
- 27. © 2 0 1 2 B N I M
- 28. © 2 0 1 2 B N I M
- 29. © 2 0 1 2 B N I M
- 30. © 2 0 1 2 B N I M
- 31. © 2 0 1 2 B N I M
- 32. © 2 0 1 2 B N I M
- 33. © 2 0 1 2 B N I M
- 34. © 2 0 1 2 B N I M
- 35. Replication + Innovation REPLICATION INNOVATION • Orientation • Shared Parking • Independent of Power Plant
- 36. © 2 0 1 2 B N I M
- 37. © 2 0 1 2 B N I M
- 38. REPLICATION INNOVATION • Solid West & East Envelope • Mitigate Heat Gain • Mitigate Glare
- 39. REPLICATION INNOVATION • Daylight / Windows • North Diffuse Daylight • Views • Light Tubes • Daylight Responsive Dimming • Daylight Harvesting Sunscreen • 98% Daylighting DAYLIGHTING STRATEGIES
- 40. REPLICATION INNOVATION • Light Shelf • Screen Shade • Daylight Harvesting Sunscreen • Parabolic Louver Blades
- 41. REPLICATION INNOVATION • High Angle Summer Daylight • Low Angle Winter Daylight
- 42. REPLICATION INNOVATION • Shorter Furniture Panel System Provides Full Daylighting 70% More of the Time as Compared to Existing
- 43. © 2 0 1 2 B N I M REPLICATION INNOVATION • Cost Effective Precast Envelope • Horizontal Windows • Daylight Harvesting System Becomes the Architecture
- 44. REPLICATION INNOVATION • Operable Windows • Weather Station • Building Automation System Alert • Systems Tie-In • Cost Effective NATURAL VENTILATION
- 45. REPLICATION INNOVATION • Good Thermal Envelope • Cost Effective Precast • Thermal Bridging Mitigation • Non-Conductive Precast System • Material Duality ENVELOPE
- 46. REPLICATION INNOVATION • Passive Strategies • Geothermal • Energy Recovery • Occupancy Sensors Per Workstation • Demand Controlled Ventilation • Building Automation System • Photovoltaic Panels ENERGY STRATEGIES
- 47. 19.1% of Building Energy Use RENEWABLE ENERGY REPLICATION INNOVATION • Passive First • Employ Loads Efficiently • Employ as Funding Becomes Available
- 48. Energy Monitoring LEED Measurement & Verification Electrical Circuits Monitored • Lighting • Plug Loads • Mechanical Equipment • General Building Loads • IT Equipment Geothermal Loop Data Collected by Capitol Complex Energy Management System REPLICATION INNOVATION • Ensures Intended Operation • Identifies Additional Savings • Provides Research and Demonstration Data
- 50. 16.7 – 77% saved 26% 18% 24%20% 11%
- 53. MEASUREMENT AND VERIFICATION Second Year M&V Results: • Design Estimated Model EUI – with PV 28.1 • Monitored EUI – with PV 16.7 • Monitored EUI – without PV 21.2 Conclusions: • Model over predicted pumping energy – software limited • Model slightly over predicted lighting savings • Plug loads are significantly lower than design expectations • Corrected energy model tracks actual use well • Tools supported good decision making! Energy Star = 100
- 54. Awards and Recognitions • AIA Committee On The Environment – Top 10 Green Building Award 2012 – Top 10 Plus in 2014 • ASHRAE Technology Award – Second Place in 2014 • AIA Central States Region Merit Award • AIA Iowa Merit Award • Des Moines’ Environmental Impact Awards – Built Environment Award
- 56. © 2 0 1 2 B N I M Moving to High Performance Design Questions?
- 58. SELF REPORTING GBCI CREDIT
- 59. SELF REPORTING GBCI CREDIT
- 60. SELF REPORTING GBCI CREDIT
- 61. SELF REPORTING GBCI CREDIT
- 62. SELF REPORTING GBCI CREDIT
- 63. SELF REPORTING GBCI CREDIT See document provided that can be used to cut and past the suggested information to get CE credit.