us doe building technology office (bto) window r&d overview bto arpa e shield.pdf7 lbnl...
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Marc LaFrance, US DOE10 October 2017
ARPA-E SHIELD, Providence
US DOE Building Technology Office (BTO)
Window R&D Overview
2U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
Overview
• US DOE Buildings/Windows Program
• Window R&D plans and goal
• Complexity of market transformation/policy
• Market challenges and opportunities for advanced field
applied coatings and insulating materials
3
Setting Goals: US DOE BTO Multi-Year Program Plan
http://energy.gov/eere/buildings/downloads/multi-year-program-plan
BTO Goal:• 2030 goal: Reduce average energy
use per square foot of U.S. buildings
by 30% below 2010 levels
• Long-term goal: reduce average EUI
of U.S. buildings by 50%
National Goals: • By 2030, double energy productivity
relative to 2010
• Reduce greenhouse gas emissions
26%–28% below 2005 levels by
2025
4
Provide non-biased
technical expertise
on energy savings
opportunities.
Making an Impact: BTO Strategy
Systems integration
research to validate
energy savings of
emerging
technologies.
Early stage
R&D for next-
generation
building
technologies.
5
Accelerating Integrated Policies
Integrated policy packages – systems and components
Source: IEA, Transition to Sustainable Buildings, 2013
6
6
Window Technologies – Success and Infrastructure
• Whole window ratings with NFRC label and certification;
window attachments coming soon AERC
• Low e glass, major accomplishment, reduces heat loss by
50%; spectrally selective reduces heat gain by over 70%
(SHGC ~0.7 to less than 0.2)
• Examples of window attachments include low-e film and
energy panels, exterior shades, cellular shades, awnings, etc
• Windows designed and rated with US DOE/LBNL software
tools, available for free and used by designers and raters
7
LBNL Fenestration Software Tools Ecosystem
THERM
Optics
WINDOW
CGDB
RESFENCOMFEN
Radiance
IGDB
EP-Calculator
IGDB: specular glazing database
CGDB: complex glazing & shading database
Optics: virtual glass lab
Angular SHGC/U/VT: design
THERM: window frame heat transfer
WINDOW: glazing, shading, whole-window
Radiance: detailed lighting/daylighting
EnergyPlus: whole-building energy
COMFEN: commercial fenestration design
RESFEN: residential fenestration design
EP-Calculator: attachment energy indices
8
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Low e Storm Windows and Window Film Success
• Low e window film reduces heat loss on single glass by 40%, but not large market uptake for thermal control
• Eastman (Solutia/CP Films), in collaboration with DOE
• Low e storm windows can upgrade single pane windows up to almost double pane low e code compliant windows
• DOE validated performance in multiple settings over many years, HUD, Weatherization, Quanta, PNNL, etc
• ENERGY STAR under consideration (by EPA), significant GSA/DOD uptake
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• An industry first – R5 insulation on an aluminum window (SI U value of ~ 1.1 W/m2 C)
• An Architectural (AW) structural rating, the highest structural rating for windows
• 40% better thermal performance compared to other high-structural windows
• A wider thermal break and triple glazing, providing condensation resistance and comfort for those inside
9
High Performance Frame
with competitively awarded financial support from US DOE
10U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
DOE Played a Major Role in Dynamic Glass
Development - Clear when you want it (View, Inc)
11U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
Tints when you need it (View, Inc)
12U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGYhttps://facades.lbl.gov/nyclivinglab
Automated Shading & Lighting “Living Lab”
13U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
Highly Insulating, “Thin” Triple Glazing R&D
Project for rapid development and deployment of affordable, readily manufactured R8,
thin, lightweight IGU
Surface
#1 #2 #3 #4 #5 #6
0.7mm thin
glass center
layer
Foam spacer
Low-e
Butyl sealant
R2 Sash/Frame
R4 Glazing
R3 Window
R2 Sash/Frame
R8-10 Glazing
R5-7 Window
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Adhesive
14U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
Window and Envelope Roadmap being Updated
• Workshops held, Buildings Envelope XIII Clearwater, FL
December 2016; and at IIT, Chicago, June 2017
• Draft Roadmap expected to be distributed to
stakeholders for review, late Fall 2017
• Major technology goals
– Highly insulating windows
– Dynamic windows
– Daylighting
– Elements to reduce market barriers
• Ultimate window – R10 and variable solar control
(e.g. dynamic vacuum glazing)
15U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
Window R&D FY18 Plans
• Funding uncertainty, currently in Continuing
Resolution until December, large differences between
Administration’s Request and Senate Mark
• Possible competitive opportunities if funding is
available
• At a minimum, maintain small core activity at
National Labs
– LBNL – Highly insulating R&D
– NREL – Highly insulating (vacuum insulating glazing)
durability test criteria
16U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
APRA-E SHIELD Projects – Challenges
• Complexity of market
– Residential retrofit market is highly cost sensitive, solutions
need to be inexpensive
– Existing wood windows have limited remaining life
– Ease of application and business model must have least
amount of market disruption;
Example market uptake for low-e storm windows (changing
from one commodity component to another), successful but
over 20M market transformation and over 10 years, finally
moving forward but still too slow
– Could see competition from much higher performing
products, vacuum glazing storm/energy panels
17U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
APRA-E SHIELD Projects – Expanded Markets
• Opportunities beyond residential single pane windows
– Commercial single pane windows have much longer
expected remaining life, and operate within ESCO
environment
– Applied to new windows allows new materials/coatings to
be protected in IGU and potentially inboard of low-e or other
UV protective coatings
– High consumer satisfaction can help accelerate adoption
(e.g. LED traffic lights, CFLs conditioned market for LEDs)
– Find very easy application processes
18U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
Summary
• Major progress by BTO windows program, and
design tools are essential for product ratings
• Market transformation takes time and coordinated
efforts
• Successful ARPA-E Shield Projects can go beyond
residential single pane
• If interested in long-term and major window
performance improvements, participate in roadmap
opportunities and consider responding to any
potential future financial opportunities
19U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY EFFICIENCY & RENEWABLE ENERGY
Contact Information
P Marc LaFrance, CEM
Advanced Technology and Energy Policy Manager
(CERC and Window R&D Manager)
US Department of Energy
1000 Independence Ave, SW
Washington, DC 20585-0121
202-586-4972
Cell 240-474-2177