![]() ![]() Turning Limestone Into CementĬement is traditionally made by crushing raw materials such as limestone and clay and mixing them with iron and fly ash. The value of the market was $323 billion in 2021 and is expected to reach $459 billion by 2028, according to SkyQuest Technology Consulting. Four billion metric tons of cement are produced each year according to a 2023 report from management consulting company McKinsey. “Instead of putting that energy in a battery, what if we can use this extra low cost renewable energy to make something that would otherwise be very carbon intensive? And then the first on the list of things that are carbon intensive - it’s cement.”Ĭement is a necessary ingredient in concrete, which is the cornerstone of global construction and infrastructure. “Sometimes people will pay you to take energy off their hands,” Ellis said. At that time, Chiang was thinking about the abundant intermittent energy that was being generated by renewable energy sources such as wind. In an interview with CNBC, Ellis said she started working with Chiang in 2018 soon after he co-founded Form Energy, a long-duration battery company, with another former Tesla employee, Mateo Jaramillo. Ellis applied for and won a prestigious Banting Postdoctoral Fellowship that granted her two years’ salary to work with whomever she wanted. Then came the event that sent her down a new career path, one that she could never have imagined when she started college. In fact, when Ellis graduated in 2011, she took a job at Tesla but decided after a few months to return to Halifax to pursue her doctorate. It is where Jeff Dahn has established a world renowned battery research team. Leah Ellis began her undergraduate education at Dalhousie University in Halifax, Nova Scotia, in 2007, majoring in chemistry. ![]() Who in 1980 would have said “I want to make robots that use artificial intelligence” or “I want to design electric automobiles for Tesla” or “I want to blog about cleantech”? Often the occupations we choose weren’t even a thing when that question was asked of us. People always ask youngsters “What do you want to be when you grow up?” It is a well intentioned inquiry, but it is self limiting, in that new careers are being created all the time. He is the founder or co-founder of several cleantech enterprises, such as American Superconductor Corporation, A123 Systems, Desktop Metal, Form Energy, and 24M Technologies. Yet-Ming Chiang is a renowned material sciences professor at Massachusetts Institute of Technology (MIT). In other words, the EV revolution is vitally important, but even if every vehicle on Earth - cars, trucks, planes, and ships - were powered by electricity, our planet would continue becoming too hot to support human life. But that means almost two thirds of carbon emissions come from other sources - cement, for instance, which is responsible for about 8% of global carbon emissions. And why not? The transportation sector accounts for more than a third - 37% according to the IEA - of all carbon emissions. At CleanTechnica, we tend to focus on electric vehicles, from tiny urban microcars to massively powerful sports cars. ![]()
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