Beaming Clean Energy From Space
10-26-22
Once considered science fiction, technology capable of collecting solar power in space and beaming it to Earth to provide a global supply of clean and affordable energy is moving closer to reality. Through the Space-based Solar Power Project (SSPP), a team of Caltech researchers is working to deploy a constellation of modular spacecraft that collect sunlight, transform it into electricity, then wirelessly transmit that electricity wherever it is needed—including to places that currently have no access to reliable power. "This is an extraordinary and unprecedented project," says Harry Atwater, Otis Booth Leadership Chair, Division of Engineering and Applied Science; Howard Hughes Professor of Applied Physics and Materials Science; Director, Liquid Sunlight Alliance. "It exemplifies the boldness and ambition needed to address one of the most significant challenges of our time, providing clean and affordable energy to the world." [Caltech story]
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APhMS
EE
research highlights
MedE
MCE
Harry Atwater
Ali Hajimiri
Sergio Pellegrino
Student-Built Satellite Telescope Prepares for Space
08-16-18
After nearly a decade of work, a modular reconfigurable space telescope designed by students in the Ae 105 Aerospace Engineering class is nearly ready to launch. That telescope, which came to be known as AAReST (Autonomous Assembly of a Reconfigurable Space Telescope), was designed and built in large part by the students in the class, working in collaboration with the Surrey Space Centre in England and the Indian Institute of Space Science and Technology. Professor Pellegrino says that the students working on AAReST have learned how to collaborate across continents and gained skills that will continue to serve them for years to come. In addition, he says, he's proud to have given several generations of aerospace students the opportunity to work on a real space mission. When the mission launches in 2019, dozens of past and present Caltech students—along with their collaborators nearby and abroad—will be watching and holding their breath to see whether their hard work pays off. [Caltech story]
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GALCIT
alumni
Sergio Pellegrino
AAReST
Space Solar Power Initiative
04-28-15
Caltech and Northrop Grumman Corporation have signed a $17.5 million sponsored research agreement for the development of the Space Solar Power Initiative (SSPI). The initiative will develop technologies in three areas: high-efficiency ultralight photovoltaics; ultralight deployable space structures; and phased array and power transmission. "The Space Solar Power Initiative brings together electrical engineers, applied physicists, and aerospace engineers in the type of profound interdisciplinary collaboration that is seamlessly enhanced at a small place like Caltech... We are working on extremely difficult problems that could eventually provide the world with new, and very cost-competitive technology for sustainable energy,” said EAS Chair Ares Rosakis. [Caltech story] [Northrop Grumman Release]
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APhMS
EE
energy
research highlights
GALCIT
Harry Atwater
Ares Rosakis
Ali Hajimiri
Sergio Pellegrino