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 | Feb 6, 2017
A to Z: Seoul’s elevated park features 24,000 alphabetized plants
The plants will represent 250 species found in South Korea.
Green | Feb 3, 2017
Nanjing Green Towers will be Asia’s first vertical forest
The project will be covered in 1,100 trees and 2,500 cascading plants and shrubs.
Sustainability | Jan 27, 2017
An office building proposed for Norway would generate more power than it uses
Over it’s 60-year lifespan, the power generated form the project would cover the energy cost of construction, production, and material transportation.
Sustainability | Jan 24, 2017
From an industrial park to an eco-neighborhood in Brussels, Belgium
At the heart of Vincent Callebaut Architectures’ eco-neighborhood will be three 100-meter-tall Vertical Forests.
Sustainability | Jan 19, 2017
How NYC is slashing 80% of greenhouse gas emissions by 2050
To help one of the most complex cities in the world develop an actionable strategy to meet visionary GHG reduction goals, we focused on strategies for deep carbon reductions for the city’s entire building stock, which constitutes 73% of citywide emissions, writes HDR's Jennifer Bienemann.
Game Changers | Jan 18, 2017
Turning friction into power
Research on piezoelectricity moves closer to practical applications for infrastructure and buildings.
Green | Jan 17, 2017
Everything you need to know to sound brilliant when talking about biophilia
We need nature in our everyday lives – which is why it’s so important to bring nature into the built environment.
Green | Dec 22, 2016
New tool makes it easier to share building energy efficiency information
The tool standardizes data collection from efficiency projects.
Sustainability | Dec 14, 2016
A floating, mobile gym powered by human energy envisioned for the Seine River
Energy created by those exercising within would power the gym down the Seine.
Green | Dec 13, 2016
Illuminated Water Cube highlights Pittsburgh’s new 8th Street Park
The Water Cube is a functioning art installation, dispensing water to the park’s visitors.
