Energy

MIT researchers have developed the Probabilistic Bias Correction (PBC) tool, which “uses machine learning to identify systematic bias in a model and make corrections” to improve weather forecasts, reports The Verge’s Justine Calma. “The researchers found that PBC improved the accuracy of a leading physics-based weather model by the European Centre for Medium-Range Weather Forecasts (ECMWF) for 98 percent of precipitation and 92 percent of temperature targets,” notes Calma. “The machine learning framework also doubled the accuracy of ECMWF’s new AI forecasting system in the study’s analysis.” 

Gizmodo’s Ellyn Lapointe spotlights the Probabilistic Bias Correction (PBC) tool developed by MIT researchers to “correct systemic errors in forecast models and improve the accuracy of their subseasonal outlooks.” “Extreme weather has the largest impact on our society and improved forecasts of these events can yield large societal benefits,” says Research Scientist Judah Cohen. “Interestingly, previous bias correction schemes actually made forecasts of extreme weather worse, and our model showed clear improvement of extreme weather forecasts.”  

MIT researchers have developed an AI system “that not only minimizes forecasting errors, but learns from its inevitable mistakes through a method called postprocessing,” writes reporter Andrew Paul for Popular Science. “Their AI postprocessing integration blew the existing forecasting models out of the water,” notes Paul. “Such massive improvements could soon help the farmers and energy providers who already rely on subseasonal forecasts, but the benefits may even save lives.” 

MIT startup LNK Energies has created a system to efficiently convert heavy-duty trucks from diesel to hydrogen, “slashing pollution and costs while shielding operators from the price spikes that result from geopolitical instability,” writes Tim De Chant for TechCrunch. “A lot of the reactors that LOHC (Liquid organic hydrogen carriers) companies have today are really large. They’re about the size of a shipping container,” says Alexis Huynh ‘24, cofounder of LNK. “We have shrunk that basically to the size of a mini fridge.” 

MIT spinout Cambridge Heavy Industries is developing a desktop-sized fusion reactor that can enable 50 to 80 experiments per day, writes TechCrunch’s Tim De Chant. “Cambridge Heavy’s fusion reactor uses lasers to compress a fuel target, similar to the groundbreaking experiment that proved controlled fusion reactions could produce more power than they consume,” notes De Chant. “But unlike other inertial confinement designs, Cambridge Heavy’s minimizes the number of lasers required to spark fusion.”  

Boston Globe reporter Jon Chesto spotlights the fall fair event held as part of the MIT x GE Vernova Energy & Climate Alliance, during which, GE Vernova CEO Scott Strazik shared his enthusiasm for hiring MIT graduates. “Something we talk a lot about inside Vernova is the world is changing very quickly but we need to change quicker and even faster than that so we can lead in the world,” says Strazik. “Over the last year-plus on this campus, we see a lot of opportunities for us to get better through bringing you into the organization.”  

In an opinion piece for The Washington Post, Senior Fellow Brian Deese and his colleague Anna Pasnau outline a potential framework for maintaining battery energy storage systems efficiently. Batteries “can reduce the need to run the expensive natural gas ‘peaker’ plants that are used only when demand is high,” Deese and Pasnau write. “And batteries can be deployed quickly—often in months, compared with the years it can take to build new stand-alone electricity generation—meaning they can meet surges in demand.”  

MIT startup Alsym Energy, cofounded by Prof. Kripa Varanasi, has developed an alternative to lithium-ion batteries using sodium ions, writes Morgan Clendaniel for Fast Company. “The battery is nonflammable and nontoxic, allowing it to be placed in more sensitive areas and saving money on cooling systems that often have to be co-installed with large lithium batteries,” explains Clendaniel.  

Prof. Dennis Whyte joins Hakeem Oluseyi, host of GBH’s “Particles of Thought,” to “explore fusion's wildest applications” in space. “There are private companies now looking at ways to exploit fusion for space travel,” says Whyte. “There are also, simultaneously, companies which are looking at using the technology of fusion—particularly the plasma and magnetic technology, which were primarily developed from fusion to get significant improvements in propulsion technology as well.” 

Prof. Koroush Shirvan speaks to The New York Times’ Brad Plumer and Rebecca F. Elliott about the safety of companies increasing power levels in existing nuclear reactors. “We know a lot about the safety performance of these plants; the confidence is high there,” says Shirvan. Plumer and Elliot write that Shrivan added “some plants in the past have run into operational difficulties after upgrades. If, for instance, the higher power levels subjects equipment to more wear and tear, plants may have to be shut down more frequently for maintenance,” write Plumer and Elliott.  

Prof. Dennis Whyte joins Hakeem Oluseyi, host of GBH’s “Particles of Thought,” to discuss cofounding MIT spinoff Commonwealth Fusion Systems from a class assignment that blossomed into actionable research. The students “were not saddled with conventional wisdom” about superconducting technology, says Whyte. In the class, “we were throwing all kinds of crazy ideas at the fridge on this and some of them stuck,” says Whyte. “I’ve had the privilege to see my students succeed. We [professors] have a job where we get an amazing privilege where we get to discover.”  

BBC News reporter Chris Baraniuk highlights MIT startup Alsym Energy, which is developing sodium-ion batteries. Drew Buckley, chief executive at ESS Tech, “points out that sodium ion batteries could help distribute renewable energy to data centers,” writes Baraniuk. “And those batteries should be cheaper to run than lithium-ion alternatives, since they are not expected to require as much cooling.”  

Prof. Dennis Whyte, co-founder of MIT spinoff Commonwealth Fusion Systems, joins GBH’s Hakeem Oluseyi, host of “Particles of Thought,” to discuss the future of fusion technology, which he describes as “the engine of the universe.” The energy power density of fusion “is about ten million times higher than gasoline,” says Whyte. “The cost and the accessibility to it [fusion] is not driven by access to fuel, but to the technology and the manufacturing capability of building the objects that would actually deliver fusion. We need a new discipline to tell us about what that is going to cost as a practical energy source—which we are starting to do now.”  

MIT startup Fourth Power, founded by Prof. Asegun Henry, has developed a solar cell that generates its energy through built-in solar panels powered by hot graphite, writes Hiawatha Bray for The Boston Globe. “The Fourth Power system can be heated up using renewable energy, like wind or solar power, at times when these resources are cranking out surplus power,” writes Bray. “[T]he Fourth Power technology could become a preferred method of providing extra power to electrical grids during periods of peak demand.” 

During Climate Week NYC, Evelyn Wang, MIT’s Vice President for Energy and Climate, emphasized the importance of utilizing AI to help tackle climate change, write Seth Borenstein and Jennifer McDermott for The Associated Press. Data centers adding to climate and water problems ‘is not forever,’ according to Wang, who told The Associated Press that data centers are about five years away from being water neutral and about a decade away from no longer adding to planet-warming emissions.