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
Green | Nov 16, 2015
USGBC Working Group approves new guidance for LEED Materials & Resources Credit 4
Helps product manufacturers offer insight into material and supply chain sustainability
Green | Oct 30, 2015
First WELL-certified city district will be built in Tampa, Fla.
The plan calls for the construction of a $2 billion, 40-acre urban mixed-use development, where all buildings will pursue WELL Certification.
Sponsored | Green | Oct 22, 2015
Six-story living wall improves building performance at University of Ottawa
Benefits of the living wall include dust control and sound abatement.
Green | Oct 21, 2015
GBCI announces 2015 class of LEED Fellows
The 35 winners have demonstrated leadership within the green building movement.
Multifamily Housing | Oct 15, 2015
Montreal apartment is world’s largest residential cross-laminated timber project
Its 434 condo, townhouse, and rental units in three eight-story buildings are made from sustainably harvested wood turned into panels by Canadian company Nordic Wood Structures together with the Cree Nation in Chibougamau.
Green | Oct 5, 2015
ULI report: Commercial real estate properties cutting emissions, energy use
The new report from ULI’s Greenprint Center shows a positive trajectory of real estate properties worldwide reducing energy and water use.
Green | Oct 1, 2015
New York showcases an urban farm for public housing
Providing healthy foods and job training are two of this project’s missions.
Multifamily Housing | Sep 28, 2015
Vo Trong Nghia’s 'diamond lotus' will feature sky garden pathways linking high-rises
The 22-story housing complex in Ho Chi Minh City will have façades covered with plants and a rooftop garden that connects the structures.
Green | Sep 11, 2015
GBI releases Green Building Assessment Protocol for Commercial Buildings for public comment
Revised ANSI standard open for review through Oct. 26
Retail Centers | Aug 27, 2015
Vallco Shopping Mall renovation plans include 'largest green roof in the world'
The new owners of the mall in Cupertino, Calif., intend to transform the outdated shopping mall into a multi-purpose complex, topped by a 30-acre park.
