Circular Economy for Energy Materials
NREL supports a clean energy transition by ensuring resource sustainability for a decarbonized and resilient U.S. energy economy. Developing clean energy technologies that are reliable, durable, recyclable, and equitable in impact is key to this effort.
Decarbonization of the U.S. economy will require rapid deployment of clean energy technologies. This will demand large amounts of materials—including scarce, critical materials. Ensuring these materials are available in the necessary quantities and at their highest value and function will necessitate a robust circular economy for energy materials.
To reduce supply chain limitations across energy technologies, NREL is:
- Developing novel, low-emissions materials
- Creating design architectures to increase recyclability
- Designing manufacturing processes that reduce material use
- Increasing technology lifetimes
- Conducting social, economic, and regulatory analyses that support a circular economy for energy materials.
We are also developing end-of-life material recovery strategies to ensure these materials are not disposed of in landfills (as is the common practice today) but continue to provide societal value.
NREL envisions a future in which energy materials are manufactured more efficiently, built to last longer, and designed for reuse and recycling on retirement to ensure that resources and supply chains for the clean energy transition are secure and sustainable.
As batteries proliferate in electric vehicles and stationary storage, we are exploring ways to increase the lifetime value of battery materials. Specifically, we are improving battery reuse, repair, and recycling while addressing barriers to the widespread adoption of these practices.
NREL is working to minimize waste streams from building construction through research on new materials and industrialized construction and by making buildings more durable. We are also developing design principles, modeling tools, and new economic models with circularity and carbon sequestration in mind.
Modeling and Analysis
Modeling and analysis underpin our work in the circular economy. Using innovative models and research capabilities, we provide credible, objective analyses of clean energy systems throughout their life cycles.
NREL is enhancing photovoltaic (PV) sustainability by increasing the energy produced by PV systems over their lifetimes while reducing the energy consumed in their manufacturing and installation. We are developing new materials, architectures, and manufacturing processes; studying PV system performance over time; and exploring ways to recover materials at end-of-life while minimizing negative environmental impacts.
Polymers and Composites
Transitioning polymer materials to a circular economy will require improved recycling processes for today’s plastics and a new, designed-for-circularity approach for tomorrow’s low-fossil-carbon plastics. NREL is developing processes to break down today’s most widely manufactured polymers, pursuing methods to upcycle waste plastic, and designing new polymers that are easier to recycle.
We are designing tomorrow’s wind energy technologies to use fewer resources, last longer, and break down more easily. Many components of wind turbines can already be recycled, and NREL is studying ways to encourage this. In addition, we are developing ways to make large turbine blades easier to recycle at end-of-life.