Peter Hoffmann, AIA, LEED AP
Building Energy OptimizationMaximizing Return on Investment in Net-Zero and Other Energy-Efficient Buildings
Associate Principal, Page/Austin
Texas Society of ArchitectsA051
Building Energy Optimization59
Peter Hoffmann11-7-2015
Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.
This course is registered with AIA
CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner ofhandling, using, distributing, or dealing in any material or product.___________________________________________Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
SAMPLE OPTIONAL SLIDE
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© PageSoutherlandPage 2015
Copyright Materials
This presentation demonstrates a methodical approach that Page used to target net zero energy use for a multifamily project. While the individual strategies used for a multifamily project will differ from those employed for other building types, the strategic and tactical approaches toward achieving the best return on investment are applicable to any building project
CourseDescription
LearningObjectives
1. Help their Client define their energy/sustainability goals.
2. Know who to include in a energy/sustainability programming team.
3. Create a list of Energy Efficiency Measures
4. Evaluate EEM’s Return on Investment based on several metrics
At the end of the this course, participants will be able to:
History Process SummaryIntroduction
Introduction Who We Are
Founded in 1898
Integrated Architectural and Engineering Design Practice
Over 500 Architectural and Engineering Professional
Six United States Offices / Four International Offices
Over 200 Design Awards in the Last Decade Alone
Page Southerland Page, Inc.Austin, Texas
Architecture Engineering Interiors Planning Consulting Commissioning Lab Planning Programming Sustainability
Introduction Market Sectors
AcademicCivic / GovernmentCorporate / CommercialHealthcareHousing / HospitalityScience / Technology
History Process SummaryIntroduction
800 Avondale – spray foam insulation, shading, low e, high efficiency HVAC, solar
Four Points Office Campus – LEED Gold, Core and Shell, minimal footprint in an ecologically sensitive area
Lakeway Regional Medical Center – LEED Silver, EW orientation, natural materials
Veterans Administration Clinic Austin – LEED Silver equivalent, replacement building
Data Centers – high tech and secure – MEP efficiency driven
United Data Center – Brill Award for notable achievements in IT efficiency – mission critical cutting edge tech
United Data Center – Brill Award / LEED Silver – Kyoto heat exchanger
United Data Center – ambient air based cooling for servers/any climate – no water used
United Data Center – Kyoto – no water use – new standard for many locations
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Project Size345,500 Square Feet352 units468 parking spaces
Services ProvidedArchitecture / Interiors / Civil
East Riverside Apartments Austin, Texas
Site Aerial
Site Analysis
Topography & Hydrology
Conceptual Program
Early Concept
Net Zero
Gas Turbine / Co & Tri-generation
Solar
New Project Requirements
History Process SummaryIntroduction
30 Day Road Map
1. Define Vision – Set project Goals
2. Create the Team
3. Identify Energy Efficient Measures
4. Evaluate Return on Investment of EEM’s
Collaborative Project Approach
Begin with your clients vision.
Presidium Group
Capital GroupProperty ManagementEnergy
East Riverside Apartments
- First ground up development- Flagship & test bed for future projects
Client profile
Define Vision – Set project Goals
- Reduce Energy Bills Energy use reductionOn site generation – Solar & Gas Turbine Co/Tri generationConsumption Tracking
- Maximize Marketability of projectNet ZeroLEED
- Create Sustainability focused BrandHigh correlation between near downtown demographicand interest in sustainability
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Create the TeamTo create a conceptual framework to implement vision
- Client, Architect, Energy modelers, Engineers, Cost EstimatorsUtility representatives, Vendors
- Find people with the ability to think/understand issues outside of their area of expertise - Interdependence of systems
- Get team together early – available for brainstorming
East Riverside Apartments Team
Client Presidium Group
Architecture Page/
Energy Modeling Atelier 10
MEP Engineers Page/ (conceptual) + Bay Engineers (design)
Cost Estimating Project Cost Resources
Electric Utility Austin Energy
Photovoltaic Presidium/Alba
Team
Identify Energy Efficient MeasuresEast Riverside Apartments
- Generate energy use base line data (conceptual energy model)
- Leverage your teams knowledge of EEM’sPrevious ExperienceCurrent Developments
- Get the Team in a room and charretteTeam is greater than sum of parts
- Don’t forget the basics
- Be open to new ideas
Atelier 10 conceptual baseline energy model
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31
Steps to Net Zero – building design measures + central plant measures = 50% savings + renewable energy generation = 0
List of EEMs to achieve Net Zero Energy Cost to be priced
Energy Use Reduction strategies
High Efficiency HVAC
Solar Shading / High performance glass
Central High Efficiency Boilers (Heating & Domestic Hot Water
Daylighting
Energy and water conserving appliances & fixtures
Motion & Occupancy detectors for lighting
Energy use monitoring
High performance envelope
On site Energy production strategies
Solar
Gas Micro Turbines with Co and Tri generation options
Solar Domestic hot water
Ground source cooling
Evaluate Return on Investment of EEM’sEvaluation Criteria
- Energy Reduction/Generation potential- Initial Cost- Operational costs (Fuel, Maintenance, other life cycle costs)- Local Climate Considerations- Local availability of technology- Seasonal/Daily Load variations and rebate structures- Constructability and integration with other building parameters
First stepsEast Riverside Apartments
- Check Rebates
http://www.dsireusa.org/
- Solar definite
- Eliminate easy EEM’s (Green roofs, unproven, etc.)
Road Map
Conceptual Energy Modeling Results
Structural/irrigation/cost
Steps to Net Zero – building design measures + central plant measures = 50% savings + renewable energy generation = 0
Energy Reduction/Generation potential
Energy Reduction- Building Envelope minimal gain - Code- Solar Shading high potential- HVAC high potential- Lighting potential with risks
Energy Generation- Gas Micro Turbine high potential/high risk- Solar rebates/correlation/storage
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2012 IECC
Building Envelope
Conceptual Energy Modeling Results
Building Envelope
Insulation – Diminishing returns
Building Envelope
Insulation – Diminishing returns
Building Envelope
- Energy Reduction/Generation potential
- Initial Cost
- Operational costs (Fuel, Maintenance, other life cycle costs)
- Local Climate Considerations
- Local availability of technology
- Daily/Seasonal Load variations and rebate structures
- Constructability and integration with other building systems
Conceptual Energy Modeling Results
Solar Shading/Gain
Site plan
Solar Shading/Gain
Shutters & windows – visual comfort & design
Solar Shading/Gain
Solar Shading/Gain
- Energy Reduction/Generation potential
- Initial Cost
- Operational costs (Fuel, Maintenance, other life cycle costs)
- Local Climate Considerations
- Local availability of technology
- Daily/Seasonal Load variations and rebate structures
- Constructability and integration with other building systems
Lighting
Daylighting/Occupancy sensors/Garage lighting
Lighting
Daylighting/Occupancy sensors/Garage lighting
Lighting
45
- Energy Reduction/Generation potential
- Initial Cost
- Operational costs (Fuel, Maintenance, other life cycle costs)
- Local Climate Considerations
- Local availability of technology
- Daily/Seasonal Load variations and rebate structures
- Constructability and integration with other building systems
HVAC
Roof space/DOE vs Energy Plus/initial cost
HVAC
Initial cost delta
HVAC
HVAC
HVAC
- Energy Reduction/Generation potential
- Initial Cost
- Operational costs (Fuel, Maintenance, other life cycle costs)
- Local Climate Considerations
- Local availability of technology
- Daily/Seasonal Load variations and rebate structures
- Constructability and integration with other building systems
Gas Micro-Turbines
Energy generation – complementary systems
Gas Micro-Turbines
Gas Micro-Turbines
Tri-Generation
52
Gas Micro-Turbines
Too complex for project type – electric alone more expensive than grid
Absorption chillers
Project type complexity
- Energy Reduction/Generation potential
- Initial Cost
- Operational costs (Fuel, Maintenance, other life cycle costs)
- Local Climate Considerations
- Local availability of technology
- Daily/Seasonal Load variations and rebate structures
- Constructability and integration with other building systems
Gas Micro-Turbines
- Energy Reduction/Generation potential
- Initial Cost
- Operational costs (Fuel, Maintenance, other life cycle costs)
- Local Climate Considerations
- Local availability of technology
- Daily/Seasonal Load variations and rebate structures
- Constructability and integration with other building systems
Domestic Hot Water
Central plant/life cycle cost analysis
Domestic Hot Water
Water softening/piping
- Energy Reduction/Generation potential
- Initial Cost
- Operational costs (Fuel, Maintenance, other life cycle costs)
- Local Climate Considerations
- Local availability of technology
- Daily/Seasonal Load variations and rebate structures
- Constructability and integration with other building systems
Solar Power
Making up the deficit
Solar Power
Panel layout and shade study/structural system
Solar Power
Solar Power
Visible Solar
Solar Power
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- Energy Reduction/Generation potential
- Initial Cost
- Operational costs (Fuel, Maintenance, other life cycle costs)
- Local Climate Considerations
- Local availability of technology
- Daily/Seasonal Load variations and rebate structures
- Constructability and integration with other building systems
Advances in energy generation & storage – energy systems test facility
Final Report
History Process SummaryIntroduction
Presidium
1. Define Vision / Clear goals
2. Put together a great Team
3. Identify Energy Efficient Measures
4. Methodically evaluate Return on Investment of EEM’s
5. Format Information
Presidium
Sample Last Slide
This concludes The American Institute of Architects Continuing Education Systems Course
Texas Society of Architects 512-478-7386
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