As spaceborne energy-harvesting schemes go, this one seems faintly possible — an array of curved mirrors directing sunlight toward solar cells, their energy production microwaved down to Earth. It’s so realistic, actually, that NASA is providing funding for a proof-of-concept study.
Rising energy prices usually spark some creative ideas for alternatives, but a new one from a futurist named George Dvorsky is pretty far-fetched: He envisions destroying Mercury and scavenging its rocky remains. The debris could be used to build an array of solar power collectors, a Dyson swarm, around the sun.
Installing a solar roof on your home could one day be as simple as mixing your yard clippings into a stew of inexpensive chemicals and painting the resulting mixture right onto your rooftop. An MIT researcher has developed a method of manufacturing solar panels on the spot from agricultural waste, sidestepping the need for silicon and making ready-to-mix solar cheap and abundant virtually anywhere.
A majority of people in Canada, the United Kingdom and the United States support studying ways to reflect sunlight as a method to cool the planet, according to a new study. Researchers at Harvard and two Canadian universities say nearly three-quarters of survey respondents approved research into geoengineering.
If you want to be a part of discovering the future of solar power, you can be. You don't need any special knowledge or equipment, just let Alán Aspuru-Guzik borrow your computer when you're not using it.
Residents of New Jersey, a state well known for its elegant aesthetic sense, are unhappy with the solar panels installed on electrical poles in leafy residential neighborhoods by the state's largest utility company. In suburban Bergen County, locals call the panels "ugly," "hideous," and an "eyesore," in addition to protesting their installation with complaints and (possibly) vandalism, according to the New York Times.
The sun makes an excellent coffee roaster, it turns out
By Andrew Rosenblum
Posted 04.27.2011 at 10:11 am 0 Comments
In 2004, artist Dave Hartkop was looking for a way to move out of his parents’ house. Pairing his interest in alternative energy with his brother Mike’s passion for coffee, he decided to start an online coffee business, and designed a huge solar-powered roasting system to supply it. Now the brothers are on their fourth, and by far largest, version of the roaster. Dubbed Helios 4, it’s made up of more than 600 mirrors and has a 35-foot-by-35-foot footprint.
One of the major barriers between solar energy and solar-derived electricity is solar cells themselves--commercial solar cells aren’t very efficient at converting sunlight to electricity, but they are the best thing we’ve got. Now, a team of University of Michigan researchers have potentially devised a better way to convert solar energy into electricity: get rid of the semiconductor-based solar cells altogether and tap into the magnetic effects of light.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.