Prof. Jessika Trancik speaks with Wall Street Journal reporter Nidhi Subbaraman about the dramatic drops in costs to manufacture and sell renewable technologies. Subbaraman notes that Trancik’s research shows that “the steep drop in solar and lithium-ion battery technology was enabled by market expansion policies as well as investment in research and development by governments and the private sector.”
Mashable reporter Emmett Smith spotlights how MIT researchers have developed a new technique to clear dust from solar panels without using water. The new method uses “electrostatic repulsion, where an electrode that glides above the panel electrically charges dust particles and subsequently repels them.”
MIT engineers have developed a new contactless method to clean solar panels that could save billions of gallons of water, reports Anuradha Varanasi for Popular Science. “I was amazed at the sheer amount of pure water that is required for cleaning solar panels,” says Prof. Kripa Varanasi. “The water footprint of the solar industry is only going to grow in the future. We need to figure out how to make solar farms more sustainable.”
Prof. Kripa Varanasi, graduate student Sreedath Panath, and a team of researchers are developing a water-free way to clear dust off of solar panels, reports Billy Hurley and Ed Brown for Tech Briefs. “Water is such a precious commodity, and people need to be careful about how to make use of this resource that we have,” says Varanasi. “The solar industry really needs to keep this in mind; we don’t want to be solving one problem and creating another.”
MIT researchers have developed a new water-free system that uses static electricity to clear dust from solar panels, reports Miriam Fauzia for The Daily Beast. “By using this technique, we can recover up to 95 percent of a solar panel’s power output,” explains graduate student Sreedath Panat.
Prof. Yet-Ming Chiang and his colleagues are developing a new, inexpensive iron-air battery technology that could provide multi-day storage for renewable energy by 2024 through their startup Form Energy, reports Anuradha Varanasi for Popular Science. Chiang explains that “the battery can deliver clean electricity for 100 hours at a price of only $20 kilowatts per hour – a bargain compared to lithium-ion batteries, which cost up to $200/kWh,” writes Varanasi.
New Scientist reporter Chen Ly writes that MIT researchers have developed a new technique that uses static electricity to remove the dust from solar panels, which could save around 45 billion liters of water annually. “I think water is a precious commodity that is very undervalued,” says Prof. Kripa Varanasi. “What I’m hoping is this will spur more people to think about water issues.”
A new study co-authored by MIT researchers finds that China’s ban on cryptocurrencies sent the process of creating new coins to other locations in the world that use less renewable energy, reports Hiroko Tabuchi for The New York Times. The researchers found that “Bitcoin miners lost their access to hydropower from regions within China that had powered their computers with cheap, plentiful, renewable energy during the wet summer months.”
E&E News reporter Sara Schonhardt reporter speaks with Michael Mehling, deputy director of the MIT Center for Energy and Environmental Policy Research, about how Russia’s invasion of Ukraine will impact the transition to cleaner energy in Europe. “I think it will lend further support to the not only environmental imperative of decarbonization, but also the strategic imperative of becoming energy independent with locally available renewables,” says Mehling.
Quaise Energy, a startup out of MIT’s Plasma Science and Fusion Center, has developed a millimeter wave drilling system to access layers of rock that reach over 700 degrees Fahrenheit, making geothermal power more accessible, reports Adele Peters for Fast Company. “Wind and solar [power] take up quite a bit of land,” writes Peters. “If geothermal power can be affordable anywhere, it could help fill an important gap in getting to 100% renewable electricity.”
In a letter to the Financial Times, Prof. Donald Sadoway underscores the need for new smelting capacity to meet the growing need for copper for the transition to clean energy. “Imagine a process that produces superior metal at lower cost with zero greenhouse gas emissions,” writes Sadoway. “Such technology would recapture domestic market share from foreign producers. We must invent the future; we cannot simply legislate for it.”
Ubiquitous Energy, an MIT startup, is developing technology to transform windows into surfaces that capture solar energy, reports Catherine Clifford for CNBC. “Ubiquitous makes a coating for windows that uses semiconducting materials to convert sunlight into electricity,” writes Clifford. “The coating is just nanometers thick and tiny wires connect the solar window to electrical systems where the energy is used.”
MIT startup Ubiquitous Energy has created transparent solar panels that can also generate electricity, reports Adele Peters for Fast Company. “The windows, with two panes of glass that are sealed together, have wires that can be connected either directly to something next to the window – such as a light or electronic blinds – or connected to a battery in the building or back into the electric grid,” writes Peters.
IEEE Spectrum reporter Prachi Patel writes that researchers from MIT and Google Brain have developed a new open-source tool that could streamline solar cell improvement and discovery. The new system should “speed up development of more efficient solar cells by allowing quick assessment of a wide variety of possible materials and device structures,” writes Patel.
Writing for The Wall Street Journal, Prof. John Sterman details how he reduced his personal carbon footprint, from commuting via bicycle to completing a deep-energy retrofit on his home. “The project was great fun, cost-effective and the house is far more comfortable,” writes Sterman. “But personal action, though essential, isn’t sufficient. Building a prosperous, safe and equitable world requires that we transform our economy and institutions. To do so we must act now. There is no time to waste.”