owning zero usgbc co rmg 2012
DESCRIPTION
Presentation for USGBC Colorado Rocky Mountain Green on the owner's perspective on net zero energy. Co-presented with ShantTRANSCRIPT
Shanti Pless, LEED APNREL, Commercial Buildings Research Group
Tom Hootman, AIA, LEED APRNL, Director of Sustainability
New Buildings InstituteGetting to Zero 2012 Status Update: A First Look at the Costs and Features of Zero Energy Commercial Buildings (March 2012)
New Buildings InstituteGetting to Zero 2012 Status Update: A First Look at the Costs and Features of Zero Energy Commercial Buildings (March 2012)
New Buildings InstituteGetting to Zero 2012 Status Update: A First Look at the Costs and Features of Zero Energy Commercial Buildings (March 2012)
California PUC 2030
ASHRAE Vision 2020
Federal / EISA 2030
Massachusetts 2030
Living Building Challenge
2030 Challenge
131K-5K
115K-10K 10K-25K 25K-50K
50K-100K >100K
19 5
8 4New Buildings InstituteGetting to Zero 2012 Status Update: A First Look at the Costs and Features of Zero Energy Commercial Buildings (March 2012)
OtherCertifiedSilverGoldPlatinum Source: DBIA Project Database
Average Cost: $334/SFRSF Cost: $259/SF
Cos
t per
Squ
are
Foot
Images courtesy of Architectural Nexus
Image
Image courtesy of GSA, Beck Group and Westlake Reed Leskosky
New Buildings InstituteEnergy Performance of LEED for New Construction Buildings (March 2008)
Goal Setting
Design for Operations
Contractual Performance
Feedback Loop
The Handoff
Manage Plug Loads
I want a green building
Design a LEED <rating> building
Design a building to use 30% less energy than ASHRAE 90.1-2004
Design a building to use less than 25,000 BTU/sqft
Design a net zero energy building
Safety
LEED Platinum
Energy Star
1. Mission Critical
2. Highly Desirable800 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” campaign
Secure collaboration with outsiders
Building information modeling
Substantial Completion by 2010
3. If PossibleNet 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 turnover
Compliance Modeling (Percent better than ASHRAE 90.1)
Predictive Modeling(Absolute energy target)
VERSUS
COMPETITION DESIGN CONSTRUCTION OPERATIONS
CHARRETTE MODEL AS-DESIGNED MODEL
LEED MODEL + BASELINE AS-BUILT MODEL
OPERATIONS MODEL
Net Zero Energy Building (After PV):
Site ZEB
0kBtu/SF/year
Source ZEB
-20kBtu/SF/year
Emissions ZEB
-5LB CO2e/SF/year
BClassification
BClassification
BClassification
2030 Baseline
137kBtu/SF/year
LEED Baseline
55kBtu/SF/year
Design/Actual
35kBtu/SF/year
Energy Use Intensity:
Operators Occupants
Executives IT Managers
Food Service HR Managers
First day of Net zero – June 23, 2011
Innovation for Our Energy Future
Measured Versus Modeled Monthly and Cumulative EUI
Innovation for Our Energy Future
October 2010 – September 2011 Lighting Power Density
Innovation for Our Energy Future
October 2010 – September 2011 Plug Load Power Density
Note: The elevators are included in the plug loads
Innovation for Our Energy Future
October 2010 – September 2011 Daily Heating Energy
Innovation for Our Energy Future
2011 YTD Daily Cooling Energy
Innovation for Our Energy Future
October 2010 – September 2011 Mechanical System Power Density
Note: The mechanical load is comprised of only fans and pumps
Note: Control of the VFDs was optimized in late October 2010, resulting in energy savings
Note: Control of the dampers was optimized in April 2011, resulting in energy savings
Coordinate with O&M Plan
Coordinate with Commissioning
Analyze and Report Energy Data
Plan Energy Information System
Educate and Train Occupants
Manage Plug and Process Loads
Celebrate Success!
Plan for Future Changes
SAVE A SEAT FOR
YOUR DESIGN-BUILD TEAM?
