A new report from the U.S. National Renewable Energy Laboratory (NREL) says PV module lifetime extensions should be prioritized over closed-loop recycling to reduce demand for new materials.
Researchers assessed the impact on new material demand with different module lifetimes from 15 to 50 years. They also examined closed-loop recycling, and assumed that the U.S. will have 1.75 terawatts of cumulative PV installed capacity by 2050.
Modules with 50-year lifetimes could reduce new material demand by 3% through lower deployment, compared to a 35-year baseline scenario. Fifteen-year modules would require an additional 1.2 TW of replacement modules, which would increase new material demand and waste unless over 95% of the module mass was closed-loop recycled.
To date, no PV technology has reached near the 95% level of closed-loop recycling for all component materials. Thus, manufacturing longer-lasting PVs is the more eco-friendly choice.
Related Stories
| Nov 4, 2011
CSI and ICC Evaluation Service agree to reference GreenFormat in ICC-ES Environmental Reports?
ICC-ES currently references CSI's MasterFormat and other formats in all of its evaluation reports. The MOU will add GreenFormat references.
| Nov 4, 2011
McCarthy completes construction of South Region High School No. 2 in Los Angeles
Despite rain delays and scope changes, the $96.7 million high school was completed nearly two-months ahead of schedule.
| Nov 2, 2011
John W. Baumgarten Architect, P.C, wins AIA Long Island Chapter‘s Healthcare Award for Renovation
The two-story lobby features inlaid marble floors and wood-paneled wainscoting that pays homage to the building’s history.
| Oct 25, 2011
Commitment to green building practices pays off
The study, conducted by the Pacific Northwest National Laboratory, built on a good indication of the potential for increased productivity and performance pilot research completed two years ago, with similarly impressive results.
| Oct 20, 2011
UNT receives nation’s first LEED Platinum designation for collegiate stadium
Apogee Stadium will achieve another first in December with the completion of three wind turbines that will feed the electrical grid that powers the stadium.
| Oct 20, 2011
Stellar hires Navy veteran Taylor as vice president
Stellar’s federal experience includes military exchanges (large retail stores on military bases), lodging facilities for military personnel, fuel stations, youth activities centers and recreational centers.
| Oct 19, 2011
System for installing grease duct enclosures achieves UL listing
Updated installation results in 33% space savings.
| Oct 17, 2011
THOUGHT LEADER: Allan Bilka, Senior Staff Architect and Secretariat to the IGCC
Allan Bilka, RA, is a Senior Staff Architect and Secretariat to the International Green Construction Code (IgCC) with the International Code Council, based in the ICC’s Chicago district office. He also serves as staff liaison to the ICC-700 National Green Building Standard. He has written several ICC white papers on green building and numerous green-related articles for the ICC. A registered architect, Bilka has over 30 years of combined residential design/build and commercial consulting engineering experience.
| Oct 17, 2011
USGBC L.A. Chapter's Green Gala to feature Jason McLennan as keynote speaker
Chapter to presents inaugural Sustainable Innovation Awards,
| Oct 12, 2011
FMI’s Construction Outlook: Third Quarter 2011 Report
Construction Market Forecast: The general economy is seeing mixed signs.
