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October 2021
Researchers Engineer Microorganisms To Tackle PET Plastic Pollution
To help combat the plastic waste problem, NREL and its collaborators have developed a method to upcycle polyethylene terephthalate (PET) into performance-advantaged nylon, a precursor to other valuable products such as waterproof clothing, stick-free cookware coatings, and heat-resistant machine parts.
NREL Process for Renewable Butyric Acid Good for Environment, Cheaper Biofuels
Scientists at NREL developed a fully integrated process to produce a promising precursor for diesel and jet fuel from lignocellulosic biomass, and for less expense than the selling price of the same material from petroleum.
September 2021
Q&A With Bob Allen: Cooking Up the Right Ingredients for a Circular Economy
This is the first in series of articles profiling NREL researchers whose work is helping build a circular economy to extend the lifespan of materials, components, and products, while reducing waste, conserving resources, and boosting efficiency. NREL Senior Research Fellow Bob Allen shared his thoughts on how innovations in upcycling sustainable polymers and composites can contribute to the circular economy.
August 2021
Breakthrough Methods Help Integrate Renewable Hydrogen With Waste Carbon Dioxide To Produce Clean Fuels, Chemicals, and More
Wind, solar, and battery storage appear to be a winning combination for clean electricity systems, but to make the leap to a sustainable energy system, another ingredient is necessary—low-carbon fuels.
Big Emissions Cuts and Efficiency Gains for Big Rigs
A new report from the DOE Co-Optimization of Fuels & Engines (Co-Optima) initiative identifies potential big gains for big rigs and the environment by creating low-carbon renewable diesel fuel blends for use in truck engines.
July 2021
Scientists To Develop CO₂-Free Fermentation Technology Amid Surging Demand for Low-Carbon Biofuel
After receiving a nearly $3 million award from the DOE's Advanced Research Projects Agency-Energy (ARPA-E), an NREL-led project will integrate electrochemistry with sugar fermentation to produce lipids used to make biofuels, while avoiding the release of CO₂ into the atmosphere.
News Release: Analysis Shows Enzyme-Based Plastics Recycling Is More Energy Efficient, Better for Environment
Researchers in the BOTTLE Consortium, including from NREL and the University of Portsmouth, have identified using enzymes as a more sustainable approach for recycling polyethylene terephthalate (PET), a common plastic in single-use beverage bottles, clothing, and food packaging.
News Release: What To Do With Food Waste? Well, That Depends
The expected decline in the number of landfills across the United States coupled with bans on disposing large amounts of organic waste in landfills that have been enacted in multiple states has prompted researchers at NREL to examine other ways to grapple with the issue of food waste disposal.
May 2021
New Combustion Strategies Plus Biofuels Add Up to Cleaner, More Efficient Cars and Trucks
A report released this month highlights the most significant breakthroughs of the last year in the U.S. Department of Energy's Co-Optimization of Fuels & Engines (Co-Optima) initiative, with details on findings that could translate into significant greenhouse gas and tailpipe emissions reductions.
News Release: Environmental Concerns Propel Research Into Marine Biofuels
A global effort to reduce sulfur and greenhouse gas (GHG) emissions from ships has researchers from NREL and other Department of Energy facilities investigating the potential use of marine biofuels.
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Last Updated May 5, 2025