Doubling the efficiency of solar devices would completely change the economics of renewable energy. Here is a design that just might make it possible.
A startup has started selling a battery that helps solar and wind power operate in remote locations.
Online versions of college courses are attracting hundreds of thousands of students, millions of dollars in funding, and accolades from university administrators. Is this a fad, or is higher education about to get the overhaul it needs?
Apple users are fervent in their love for Steve Jobs’ devices. I’m happy they have technology that works for them – but they’re misguided.
No other means of storing energy may be able to reach the scale required to run Germany on solar and wind power.
It says it needs to improve its thin-film solar panel technology to compete.
Infrared emissions above the epicenter increased dramatically in the days before the devastating earthquake in Japan, say scientists.
Japan is desperately trying to replace its nuclear-power capacity with renewables. It still has a long way to go.
A promising advance that came to nothing suggests what it will take to make cheap batteries for electric cars.
A California jail offers a glimpse of the economic and environmental benefits of locally generated energy.