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NBI © 2013
Ralph DiNolaExecutive Director, NBI
Net Zero CitiesOctober 23rd, 2013
Fort Collins, Colorado
Zero Net EnergyConstructive Innovation
Images are licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license
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Vision
Thought Leadership
Research
Policy
Tools
nbi… the virtuous cycle
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Zero Net EnergyDefined…A ZNE building produces as much energy as it consumes through clean, renewable resources over the course of a year. Also know as Net Zero Energy.
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Clayton Christensen Professor of Business Administration, Harvard Graduate School of Business Administration
World Economic ForumPhoto Remy Steinegger
Published 1997
Disruptive Innovation
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Disruptive Innovation
A disruptive innovation is an innovation that helps create a new market and value network, and eventually goes on to disrupt an existing market and value network (over a few years or decades), displacing an earlier technology.
http://en.wikipedia.org/wiki/Disruptive_innovation
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• Bell telephone• Land lines
1876Acoustic TelegraphAlexander Graham Bell
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1914 1940Walkie Talkie
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STARWINAR.com
1973Mobile TelephoneDr. Martin Cooper
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Intel Free Press
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Bureau of Land Management
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BedZEDAttribution: Elekhh
2000BedZED
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z-home.org
2012zHome
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September 12, 2013
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Governor Brown’s Zero NetEnergy Goals
• All new residential construction will be ZNE by 2020 in California.
• All new commercial construction will be ZNE by 2030.
• 50% of existing commercial buildings in California will be retrofitted to ZNE by 2030.
California has a set a bold course to achieve statewide Zero Net Energy (ZNE) in the next two decades:
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Ralph DiNolaExecutive Director, NBI
September 17th and 18th, 2013The Curtis Hotel Denver, Colorado
Welcome to the Getting to Zero National Forum
Images are licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license NBI © 2013
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New York Boulder
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• Photos
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• ZNE buildings do not have to cost more
• Shift the cost discussion to value• Stretch codes are the opportunity
to ratchet up the built environment and compliance and O & M is critical
• Prototypes are critical• Individuals influence
Closing Session Feedback
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• The cache of ZNE is real, it is a tipping point• The value of aspirational goal, such as the
2030 which inspired CA. • The Grid is our friend, let’s not alienate the
partner in the utility that we need to bring along on this pathway.
• EcoDistricts are very inspiring and scale jumping.
• Government needs to engage and demonstrate but also get out of the way and let innovation thrive.
Closing Session Feedback
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• Setting the aspirational goal has led to a large range of policy efforts and ideas
• Strategy we need next is the next level of how to monitor these buildings
• The State and local government is where it is going to happen
• So exciting to get together with so many experts, next we can build collaboratives.
• Gary Christianson: small scale developer, was beginning to scale back efforts, now feels ZNE effort can continue and so very achievable.
Closing Session Feedback
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2012 ZNE Study
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2013 ZNE Study Update
• Expanded list of buildings • Update 2012 info• Expanded section on state policies and policies
and program support• To be released Q4 2013
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ZNE Buildings by Type
Average EUI of ZNE-Actual bldgs = 20 kBtu/sf/yr
46%20%
n=140
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Energy Code Stringency
90.1-2010 (IECC 2012)
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Range of Outcome
90.1-2010 (IECC 2012)
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2000 2010 2020 20300
1
2
3
4
5
6
Ene
rgy
Use
Operating Characteristics
Design Components
Tenant Behavior
Components of energy outcomes
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Solar PV Production-7% Elevator
2%
Plugs/Misc44%
Lighting23%
HVAC, DHW,Fans 31%
RFM: Energy End Use based on 16 months
Solar Produced
Elevator
Plugs/Misc
Lighting
HVAC,DHW,Fans
End Use in HP BuildingsEUI = 20 kBtu/sf/yr
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Is there a relationship between cost and performance?
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63% of buildings are < 25,000 square feet (sf)
and 18% are > 100,000 sf
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Challenges
• Data Gathering • PV delayed due to cost• Projects not occupied or
operated as modeled• Getting the metering right• Commissioning – new
form of ZNE Cx• Fear of disclosure - ZNE
seen as an end-all
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Insights
• ZNE offers a clear and aspirational target • It is hard - a process not a static outcome• High performance first – lower energy use lowers PV
cost• Growth and opportunities in repeatable buildings
(schools, banks, small offices)• District, community, campus level offer cost and scaling
efficiencies • Actual ZNE happens downstream of design -
operational focus, tenant behavior focus
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Trends• Bigger buildings, more types, more firms, diverse
climates, lower EUIs, • Buildings use readily available technologies and
integrated design• Net Positive • Designers and owners want measurement and
feedback • Design teams going beyond the project to policy• Low-rise Multifamily growing• Ultra-low energy accomplishments are accelerating
Ramona Apartments, Portland, OR
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Frequent ZNE Strategies
• Ground Source Heat Pumps• Ventilation: Natural, Dedicated Outdoor Air Systems (DOAS),
Demand Control Ventilation (DCV)• Highly Efficient Thermal Envelope• Building Orientation & Glazing ratio• Solar Controls - shading• Daylighting Controls• Energy Management System• Building Dashboards• Radiant Heating / Cooling• Plug load Reductions
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ZNE Buildings Total
ZNEUltra-low
EnergyReport Total
Yr Actual Emerging
2012 21 39 60 39 99
2013 29 111 140 86 226
Building Counts
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Locations: 2012 ZNE Buildings
~21 buildings in 11 states
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Locations: 2013 ZNE-Actual Buildings
~ 29 Buildingsin 17 states
2013 Preliminary Results
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~ 140 buildings in 36 states!
Locations: 2013 ZNE Buildings
2013 Preliminary Results
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Disruptive Innovation
A disruptive innovation is an innovation that helps create a new market and value network, and eventually goes on to disrupt an existing market and value network (over a few years or decades), displacing an earlier technology.
http://en.wikipedia.org/wiki/Disruptive_innovation
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Constructive Innovation?
Disruptive:TroublesomeTroublemakingUnrulyDisorderlyUnsettlingUpsettingDisturbingDistracting
Constructive:PositiveHelpfulProductiveUsefulBeneficialPracticalFruitfulProfitable
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Your Assignment
• Forge new networks and connections• Explore policies, processes and tools• Examine technologies and techniques• Engage in advancement of Constructive
Innovation and the development of Zero Net Energy buildings and communities