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
| May 30, 2018
Accelerate Live! talk: T3 mass timber office buildings
In this 15-minute talk at BD+C’s Accelerate Live! conference (May 10, 2018, Chicago), architect and mass timber design expert Steve Cavanaugh tells the story behind the nation’s newest—and largest—mass timber building: T3 in Minneapolis.
Green | May 25, 2018
The healing power of green spaces
The healthcare community is looking at adopting integrated care systems in which outdoor healing and therapeutic gardens are an essential complement to the indoor treatments.
BD+C University Course | May 24, 2018
Building passively [AIA course]
17 tips from our experts on the best way to carry out passive house design and construction for your next multifamily project. This AIA CES course is worth 1.0 AIA LU/HSW.
Green | Apr 13, 2018
evolv1 earns Canada’s first Zero Carbon Building-Design certification
The multi-tenant commercial office building is currently under construction.
Sustainability | Apr 11, 2018
Hampshire College is home to the largest Living Certified higher education project in the world
The project joins 16 other Living Buildings certified to date.
Green | Mar 27, 2018
The world’s biggest tropical greenhouse under one roof will be built in France
Coldefy & Associates Architects Urban Planners will design the project.
Sustainability | Mar 21, 2018
LEED v4.1 — a game changer or business as usual?
The largest number of changes in v4.1 affect materials.
Energy-Efficient Design | Mar 20, 2018
University of Hawaii Maui College on pace to become first U.S. campus to generate 100% renewable energy on-site
The project is part of a partnership with Johnson Controls and Pacific Current that will also allow four UH community college campuses on Oahu to significantly reduce their fossil fuel consumption.
