NREL report: Using photovoltaic modules with longer lifetimes is a better option than recycling

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.

Learn how MG2’s Sustainable Materials Evaluation System helps clients, prospects, and staff choose the most environmentally feasible materials for their building projects. Candon Murphy, LEED GA, Assoc. IIDA, Design Lab Manager and Materials & Sustainability Specialist with MG2, speaks with BD+C Executive Editor Rob Cassidy.

Planning for hospital campus access that works for people

This course defines the elements of hospital campus access that are essential to promoting the efficient, stress-free movement of patients, staff, family, and visitors. Campus access elements include signage and wayfinding, parking facilities, transportation demand management, shuttle buses, curb access, valet parking management, roadways, and pedestrian walkways.

For glass openings, how big is too big?

Advances in glazing materials and glass building systems offer a seemingly unlimited horizon for not only glass performance, but also for the size and extent of these light, transparent forms. Both for enclosures and for indoor environments, novel products and assemblies allow for more glass and less opaque structure—often in places that previously limited their use.

Codes and Standards | May 2, 2022

Developer Hines, engineer MKA develop free embodied carbon reduction guide

Real estate management and investment firm Hines has released the Hines Embodied Carbon Reduction Guide. The free guide, produced with Magnusson Klemencic Associates (MKA), is the result of a two-year effort, relying on MKA’s industry-leading knowledge of carbon accounting and involvement in programs such as the Embodied Carbon in Construction Calculator (EC3) Tool.