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
Coronavirus | Oct 8, 2020
The Weekly show: Statue of Liberty Museum, emotional learning in K-12, LA's climate change vulnerability
The October 8 episode of BD+C's "The Weekly" is available for viewing on demand.
Green | Mar 9, 2020
BuroHappold commits to all new building projects achieving net-zero carbon by 2030
The engineering firm also launched a long-term partnership with ILFI.
Contractors | Jan 20, 2020
Wellness is for builders, not just for buildings
New research on wellness in the construction sector highlights interventions that could be effective in addressing dehydration, weight management, poor air quality, and stress.
Green | Jan 10, 2020
How the new EC3 tool raises the bar on collective action
Nearly 50 AEC industry organizations partnered to develop the groundbreaking Embodied Carbon in Construction Calculator.
75 Top Building Products | Dec 16, 2019
101 Top Products for 2019
Building Design+Construction readers and editors select their top building products for the past 12 months in the fourth-annual 101 Top Products report.
75 Top Building Products | Dec 12, 2019
Top Building Envelope Products for 2019
Sto's beetle-inspired exterior coating and Dörken Systems' UV-resistant vapor-permeable barrier are among the 28 new building envelope products to make Building Design+Construction's 2019 101 Top Products report.
Building Owners | Dec 2, 2019
What building owners and AEC teams need to know about New York’s Climate Mobilization Act
On April 18, 2019, the New York City Council passed the Climate Mobilization Act, a suite of laws aimed to meet the city’s commitment to achieving carbon neutrality by 2050.
Sustainability | Aug 15, 2019
Paris will soon be home to the world’s largest rooftop farm
Agripolis is spearheading the project.
Codes and Standards | Jul 15, 2019
USGBC calls for proposals for feedback, concepts for next LEED version
The move follows successful public input on LEED 4.1.
Green | May 8, 2019
Does wellness pay off?
Getting wellness to pay off may not be that simple, or even a wise investment to begin with, according to a new peer-reviewed study of 32,000 employees.
