Nokero, solar-powered light bulb, invented by Denver man

Colorado native Stephen Katsaros wants his bulb to brighten up places without electricity. (Leah Millis, The Denver Post)
As soon as he saw the first molds of the bulb coming out of the factory, Katsaros, 37, quit the legal firm where he worked as a patent agent and devoted himself full-time to Nokero.
His plan is to target countries such as India, Indonesia, Nigeria and Pakistan, where hundreds of millions rely on expensive, carbon-spewing gas lamps but income is high enough to afford a $15 lamp. Demand is higher in places such as Ethiopia, but the population is too poor to afford the lamp, Katsaros says.
“This is not a charity,” he says. “We are using capitalism as a method to improve people’s lives.”
The Nokero made a few waves in the tech blogosphere when it was unveiled a little over a month ago. A big part of the pitch is helping people quit burning kerosene for light, according to a post by SmartPlanet’s Andrew Nusca: Read more
How to make a solar cooker at home
A solar cooker is a simple way to use and understand a resource Boulder has in abundance: sunlight. Simple cookers require such basic household items as Elmer’s glue, cardboard, aluminum foil and a glass jar, and can be assembled in as little as two to three hours.
The Boulder company Willow Way, run by Zia Parker, offers a solar oven construction class taught by Jeff Graef.
“One thing that’s good about it is it’s a slow cooker,” Graef said. “You basically don’t have to watch it. You can throw in the food, go out and do some errands, come back and it will be cooked.”
“You can cook a pretty good variety of things, but things that take a long time to cook are more challenging,” he said. “The easiest things to cook are fruits and vegetables.
While a solar cooker might not be able to produce enough heat to cook everything on the dinner table, it could be a fun and energy efficient way to gain more understanding of the power of the sun.
Read more about how to make a solar cooker at the Camera.
-Mikaila Altenbern




