Alternative energy

MIT researchers have developed a new compact, lightweight design for a 1-megawatt electrical motor that “could open the door to electrifying much larger aircraft,” reports Ed Gent for IEEE Spectrum. “The majority of CO₂ is produced by twin and single-aisle aircraft which require large amounts of power and onboard energy, thus megawatt-class electrical machines are needed to power commercial airliners,” says Prof. Zoltán Spakovszky. “Realizing such machines at 1 MW is a key stepping stone to larger machines and power levels.”

Darby Dunn ’08 speaks with CNBC reporter Catherine Clifford about her journey from building rockets for SpaceX to working on making fusion energy a reality at Commonwealth Fusion Systems (CFS). “For me, it really came down to wanting to use my energy to clean up the planet instead of get off it,” says Dunn. “So that was the huge shift for me to come to CFS.” 

Commonwealth Fusion Systems, MIT’s Plasma Science and Fusion Center and others are working to build SPARC, a prototype device that aims to extract net energy from plasma and generate fusion power, reports Philip Ball for Scientific American. “SPARC will be a midsize tokamak in which the plasma is tightly confined by very intense magnetic fields produced by new high-temperature superconducting magnets developed at MIT and unveiled in 2021.”  

Boston Globe reporter Hiawatha Bray highlights a number of MIT startups that are focused on tackling climate change. “Boston has long been a center of clean energy, driven by innovations spinning out of the Massachusetts Institute of Technology and other universities,” writes Bray.

Professor Yet-Ming Chiang of the Department of Materials Science and Engineering (DMSE) talks to NOVA’s Miles O’Brien about his research aimed at closing gaps in renewable energy availability when there’s no sun or wind. Through their company, Form Energy, Chiang and William Woodford PhD ’13 have developed iron-air batteries that can store electricity for up to 100 hours. “This is something that just a few years ago was considered impossible,” Chiang explains.

Writing for Scientific American, John Fialka spotlights Form Energy, an MIT spinout designing an iron-air battery that “could help decarbonize the nation’s power sector more cheaply than lithium-ion storage systems.” Fialka explains that “unlike current lithium-ion batteries that require expensive materials mostly from other countries such as lithium, cobalt, nickel and graphite, the proposed battery stores electricity using widely available iron metal.” 

Writing for The Boston Globe, Prof. Emeritus Ernest Moniz writes that the National Ignition Facility’s fusion energy advancement “is exciting because when the journey from science demonstration to a commercially viable power plant is completed, the electricity grid will be revolutionized.” Moniz continues, “To meet widely accepted climate objectives, we must double the clock speed of the clean energy innovation process.”

Forbes has named Commonwealth Fusion Systems one of the biggest tech innovations and breakthroughs of 2022, reports Bernard Marr. “Commonwealth Fusion Systems is now working with MIT’s Plasma Science and Fusion Center on plans to build a factory that can mass-produce components for the first commercial fusion reactors,” writes Marr.

Prof. Dennis Whyte, director of the Plasma Science and Fusion Center, speaks with NPR host Rob Schmitz about fusion energy and its impact on climate and energy sustainability. “So in fusion, what you're doing is literally fusing or pushing together these hydrogen atoms,” explains Whyte. “They turn into helium. This is what happens in our sun as well, too. And when that happens, that can release large amounts of net energy.”

Prof. Dennis Whyte, director of MIT’s Plasma Science and Fusion Center, discusses the significance of nuclear fusion energy with Boston Globe reporter David Abel following news that an advance had been made in the development of nuclear fusion. “It’s very exciting, but we’re not all the way there,” Whyte said. “I will be really excited when we put the first watts on the grid.”

Prof. Dennis Whyte, director of MIT’s Plasma Science and Fusion Center, speaks with USA Today about the promise and challenges posed by nuclear fusion energy, in light of an announcement that scientists have crossed a milestone in their efforts to develop fusion energy. Whyte explains that, in theory, fusion could "replace all carbon-based energy sources, because it's scalable in a way that means it can actually power civilization.”

MIT researchers have developed a new machine learning model that can identify and track blobs of plasma created in controlled nuclear-fusion research, reports Ed Browne for Newsweek. “Fusion research is a complex, multidisciplinary project that requires technologies from many fields,” explains graduate student Woonghee “Harry” Han.

Quaise Energy co-founder Carlos Araque BS ’01 MS ’02 speaks with Guy Raz, host of NPR’s How I Built This, about his time on the MIT Electric Vehicle Team, starting his company and the future of geothermal energy. “We would build these cars together, literally from scratch,“ said Araque about the EVT. "Very hands on, a lot of engineering went into that. And it [offered] very early experience with building things that work -- not only work, but work reliantly and consistently.”  

Commonwealth Fusion Systems (CFS), an MIT spinout, has signed an agreement with the U.K. Atomic Energy Authority (UKAEA) to “support the fastest path to clean commercial fusion energy,” reports Ed Browne for Newsweek. “CFS says its agreement with UKAEA could involve exchanges of knowledge and collaboration on things like fuel, modeling, manufacturing and maintenance,” writes Browne. 

Ambri, an MIT startup that has developed a liquid-metal battery that can be used for grid-level storage of renewable energy, has announced that it is months away from delivering its first battery to a customer, reports Jacob Wycoff for CBS Boston. "We want to have a battery that can draw from the sun even when the sun doesn't shine," said Prof. Donald Sadoway of the inspiration for Ambri’s battery.