Advanced Window Products – A Key Strategy to Save Energy, Save Money,  and Mitigate Carbon June 11, 2009 P. Marc LaFrance,...
Facing our Energy Challenges “ The energy challenges our country faces are severe and have gone unaddressed for far too lo...
US Energy in Buildings Total US Building Envelope Energy Loss: 14.1 quads (Windows ~ 4 quads) 14.1% of Energy in US Econom...
Building Consumption – Window Relationship Consume about 10-15% of building energy Have Impact on 57% of Loads
Building Technologies Goal <ul><li>Net-Zero Energy Buildings by 2025 </li></ul><ul><li>Net-Zero Energy Homes by 2020 </li>...
Capacity from Buildings for Transportation <ul><li>Advanced windows save natural gas and electricity to free up capacity f...
Achievements: The Low-E Success Story <ul><li>Transparent metal coating  </li></ul><ul><ul><li>Reflects heat back inside i...
2009-2010 Fenestration Tax Credit <ul><li>Raised limit for home improvements to $1500 </li></ul><ul><li>Increased to 30 pe...
Window Technology Development <ul><li>Next generation window - highly insulating  - dynamic solar control </li></ul><ul><l...
<ul><li>USA, September 2008 </li></ul>Dynamic Windows –  Now Market Ready  DOE Cooperative Agreement  Prices will drop wit...
Advanced Aluminum Framing <ul><li>Joint Project with DOE Cooperative Agreement </li></ul><ul><li>An energy efficient windo...
The Potential Savings of New Technology <ul><li>Example: existing residential window stock </li></ul>These estimates, base...
Windows Volume Purchase www.R-5WindowsVolumePurchase.com R5 and Low E Storm Volume Purchase  Develop Buyer Groups Develop ...
Oak Ridge National Laboratory / Building America Whole Building Demonstrations <ul><li>Highly Insulated R5  (U value 0.20)...
Key Conclusions <ul><li>DOE is working to develop the next generation of materials and products to achieve zero energy bui...
Contact Data <ul><li>P. Marc LaFrance,  CEM </li></ul><ul><li>US Department of Energy </li></ul><ul><li>1J-018, EE-2J </li...
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Advanced Window Products – A Key Strategy to Save Energy, Save Money, and Mitigate Carbon

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Presentation by Marc LaFrance, U.S. Department of Energy

On Thursday June 11th, the Alliance to Save Energy hosted a webinar for Alliance Associates and others interested in opportunities for window energy efficiency. Moderated by the Alliance’s Vice President for Programs Jeff Harris, speakers representing research, industry and low-income weatherization highlighted options that can minimize window heat loss far beyond common practice. The focus was on high-end R-5 window technologies, but lower-cost products, such as low-E storm windows, and the specific needs of low-income weatherization programs were also discussed. The five presenters’ different perspectives converged in the message that there is a great need for more energy-efficient windows and that advanced technologies and their integration in incentive and weatherization programs can bring far greater savings within reach.

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  • Advanced Window Products – A Key Strategy to Save Energy, Save Money, and Mitigate Carbon

    1. 1. Advanced Window Products – A Key Strategy to Save Energy, Save Money, and Mitigate Carbon June 11, 2009 P. Marc LaFrance, CEM Technology Development Manager Building Technology Program Office of Energy Efficiency and Renewable Energy US Department of Energy
    2. 2. Facing our Energy Challenges “ The energy challenges our country faces are severe and have gone unaddressed for far too long. Our addiction to oil doesn’t just undermine our national security and wreak havoc on our environment – it cripples our economy and strains the budgets of working families all across America.”  White House Energy Statement “ We're using 19th and 20th century technologies to battle 21st century problems like climate change and energy security.” Remarks of President Barack Obama, Signing of the American Recovery and Reinvestment Act, February 17, 2009
    3. 3. US Energy in Buildings Total US Building Envelope Energy Loss: 14.1 quads (Windows ~ 4 quads) 14.1% of Energy in US Economy and about 3.5% of the world. $133 Billion Annually Electricity – 72% for Buildings $370 Billion Annually Natural Gas – 55% for Buildings
    4. 4. Building Consumption – Window Relationship Consume about 10-15% of building energy Have Impact on 57% of Loads
    5. 5. Building Technologies Goal <ul><li>Net-Zero Energy Buildings by 2025 </li></ul><ul><li>Net-Zero Energy Homes by 2020 </li></ul><ul><li>Low incremental cost. </li></ul>
    6. 6. Capacity from Buildings for Transportation <ul><li>Advanced windows save natural gas and electricity to free up capacity for bridging fuels. </li></ul>
    7. 7. Achievements: The Low-E Success Story <ul><li>Transparent metal coating </li></ul><ul><ul><li>Reflects heat back inside in winter </li></ul></ul><ul><ul><li>Reflects solar heat out in summer </li></ul></ul><ul><ul><li>Allows day light </li></ul></ul><ul><li>Reduces window energy by 30-65%. </li></ul><ul><li>Very low cost </li></ul><ul><li>Wide spread technology (60% of residential windows) </li></ul><ul><li>Main attribute of code compliant windows </li></ul><ul><li>Still needed for advanced windows </li></ul>
    8. 8. 2009-2010 Fenestration Tax Credit <ul><li>Raised limit for home improvements to $1500 </li></ul><ul><li>Increased to 30 percent of product cost </li></ul><ul><li>Does not cover installation costs </li></ul><ul><li>Removed individual caps on windows and doors </li></ul><ul><li>Established U-factor and SHGC at 0.30 or less </li></ul><ul><li>Took effect February 17, 2009 </li></ul>
    9. 9. Window Technology Development <ul><li>Next generation window - highly insulating - dynamic solar control </li></ul><ul><li>R10 future windows – possibly vacuum glazings </li></ul>2006 Prototype – Concept Window (Highly Insulating and Dynamic R 5.6 (U value 0.18), SHGC 0.04 – 0.34) Low cost unsealed center lite
    10. 10. <ul><li>USA, September 2008 </li></ul>Dynamic Windows – Now Market Ready DOE Cooperative Agreement Prices will drop with greater production investment See www.sage-ec.com for more information
    11. 11. Advanced Aluminum Framing <ul><li>Joint Project with DOE Cooperative Agreement </li></ul><ul><li>An energy efficient window system able to meet both high performing energy, structural, safety and security values </li></ul><ul><li>Low-E paint -- up to 14% improvement on window U-value </li></ul><ul><li>Advanced thermal-break system, enhanced foam filling </li></ul>Visit TRACO’s website for more information at www.traco.com Example: Triple Pane w/ Krypton U value Center of Glass U value Fixed Window U value Casement Traditional Thermal break 0.11 0.27 0.47 Advanced Frame 0.11 0.19 0.26 Percent Improvement 29% 43%
    12. 12. The Potential Savings of New Technology <ul><li>Example: existing residential window stock </li></ul>These estimates, based on 2006 LBNL simulations, do not take into account heating and cooling energy use due to infiltration. Window Types Energy use (quads) / savings potential (%) Heating Cooling Total 2005 window stock (7% low-E) 1.30 0.94 2.24 2-pane, low-E 53% 46% 50% 3-pane, low-E 92% 47% 73% R-10, dynamic solar control 115% 80% 100%
    13. 13. Windows Volume Purchase www.R-5WindowsVolumePurchase.com R5 and Low E Storm Volume Purchase Develop Buyer Groups Develop Draft RFP Specifications with Buyers and Possible Manufacturer Bidders Issue RFP Make Awards for Purchasing Schedule Promote Winner’s Products with Partners
    14. 14. Oak Ridge National Laboratory / Building America Whole Building Demonstrations <ul><li>Highly Insulated R5 (U value 0.20) Window Demonstrations </li></ul><ul><li>System affects – central ducts, reduced HVAC capacity, improved comfort </li></ul><ul><li>Next project – highly insulating (>R5) and dynamic solar control, Serious Materials and Sage Electrochromics </li></ul>
    15. 15. Key Conclusions <ul><li>DOE is working to develop the next generation of materials and products to achieve zero energy buildings </li></ul><ul><li>R5 windows will be more economic for retrofit because labor cost are fixed -- marginal energy savings can be greater than marginal cost (compared to double pane low e) </li></ul><ul><li>Low E storm windows may be viable where window replacement is not possible or viable </li></ul>
    16. 16. Contact Data <ul><li>P. Marc LaFrance, CEM </li></ul><ul><li>US Department of Energy </li></ul><ul><li>1J-018, EE-2J </li></ul><ul><li>1000 Independence Ave, SW </li></ul><ul><li>Washington, DC 20585-0121 </li></ul><ul><li>(202)–586–9142 </li></ul><ul><li>[email_address] </li></ul><ul><li>www.govforums.org/e&w/ </li></ul><ul><li>http://www.eere.energy.gov/buildings/ </li></ul>
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