The clean energy transition doesn’t just need a ton of solar panels, electric vehicles, and batteries. It needs aluminum — a key component to all of those technologies and many more.

Aluminum rods sit in a stack.
Credit: George Estreich / Flickr

In the next 25 years, global aluminum demand is set to surge as much as 80% as we deploy clean energy and build out the grid. But if we keep making aluminum the way we have for decades, the emissions-heavy process will outweigh a lot of the clean benefits it’ll unlock.

A massive new aluminum smelter wants to set a new status quo, Canary Media reports in the first of a two-part series. Using $500 million from the U.S. Energy Department, the Century Aluminum plant aims to run on carbon-free energy and implement efficient designs to curb its emissions as much as 75% compared to traditional smelters. Procuring all that clean power won’t be easy, though, and the part of Kentucky where it’s likely to be built is also scaling up solar and transmission development to meet the demand.

Recycling can meanwhile reduce the need for new aluminum in the first place, Canary Media continues. As much as 80% of aluminum produced in the U.S. is recycled, and the industry relies on trash pickers, scrappers, and everyday Pepsi drinkers to gather up recyclable material. But because secondary aluminum still demands some virgin material, experts say cleaning up smelters should be the industry’s top priority.

Also this week in essential clean energy materials: There’s a debate raging over the merger of two major steel companies, Grist reports. Japanese steelmaker Nippon Steel is looking to acquire U.S. Steel in a move some environmentalists say could slow both companies’ climate progress. The carbon-intensive industry has been notoriously slow to clean up its processes even with federal funding available, and advocates want to make sure the government keeps that in mind as it approves the consolidation.


More clean energy news

🚗 EVs start delivering: The first electric U.S. Post Office trucks are on the road in Georgia and already winning praise from drivers who prefer them to the previous hot, noisy and inefficient combustion vehicles. (Associated Press)

🛟 Life-saving clean transition: The Biden administration’s environmental protections and clean energy incentives will save as many as 200,000 lives by 2050 by reducing pollution, an advocacy group finds. (The Guardian)

🤖 Virtual reality: Clean energy advocates and solar companies partner to draft model utility rules and legislation to help states deploy virtual power plants, which could reduce the cost of the clean energy transition by tying together solar, storage, and other distributed energy technologies. (Canary Media)

🏦 Banking on clean energy: A federal green bank aims to channel $500 million to community financial institutions to fund solar arrays, renewable energy apprenticeships, electrified public transit, and more in rural areas, with priority for projects in Appalachia. (Grist)

☢️ Nuclear plants’ new lives: Several dozen retired nuclear plants around the country could be suitable for repowering, according to a new federal report analyzing retired coal and nuclear sites that could host new nuclear generation. (Utility Dive)

⛈️ Back-to-back climate threat: Experts warn Houston’s experience with Hurricane Beryl this summer — widespread power outages followed by a dangerous heat wave — is an “absolute certainty” to affect other parts of the U.S. that are unprepared for such a scenario. (Washington Post)

🇺🇲 Plus, some politics


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Kathryn brings her extensive editorial background to the Energy News Network team, where she oversees the early-morning production of ENN’s five email digest newsletters as well as distribution of ENN’s original journalism with other media outlets. From documenting chronic illness’ effect on college students to following the inner workings of Congress, Kathryn has built a broad experience in her more than five years working at major publications including The Week Magazine. Kathryn holds a Bachelor of Science in magazine journalism and information management and technology from Syracuse University.