alternative energy

How to Build a Solar Oven (Slideshow)

Photo credit: Eric Smith/Creative Publishing International

When distilled to their essential parts, solar ovens are really very simple devices. Using little more than a container and reflective surface, they intensify the rays of the sun to the point…

German Trains To Run on 100% Renewables

Image credit: Ingy The Wingy, used under Creative Commons license.

During our live chat with Solarcentury’s Jeremy Leggett yesterday, we started out by discussing the high profile solar railway bridge his company is helping install in central London …

How To Store Wind Power: Pump It Into A Big Underwater Balloon

Testing Hydrostor model, University of Windsor

Tyler Hamilton recently wrote Mad Like Tesla: Underdog Inventors and their Relentless Pursuit of Clean Energy, and while the book may be out, he keeps looking for those crazy ideas that might change ever…

Are Carbon Offsets Irrelevant? Maybe They Always Were…

Image credit: Land Rover Our Planet, used under Creative Commons license.

When I wrote about the new UK Carbon Reporting Framework which connects potential project funders with CO2-cutting initiatives, I noted that they were not calling it offsets. I…

Hybrid Wind-Solar System to Provide More Constant, Reliable Clean Energy

Image credit: ATR

One of the most common criticisms you hear from clean energy naysayers is that renewables suffer from too much variability. But from the world’s first 24/7 solar power plant to large-scale energy storage, that problem is now being t…

The U.S. Now Uses More Corn for Fuel Than Feed!

Photo: Flickr, CC

Madness! And I don’t mean the British band…
The corn ethanol supporters are probably not very familiar with the concept of opportunity cost. Either that, or the subsidies and high corn prices are just to juicy to give up. Only abo…

Virgin Atlantic To Debut New Green Aviation Fuel In 2-3 Years & It’s Not A Biofuel

photo: Dan Terzian/CC BY

Considering how energy-intensive it is, aviation is really the hard nut to crack in greening transportation, but Virgin Atlantic says it has a way to do it–and, importantly, without using biofuels. As The Independent reports…

1 Gigawatt New England Offshore Wind Farm Inches Forward – Production Could Begin in 2016

photo: m.prinke/CC BY SA

A massive new offshore wind power project, to be located in Rhode Island and Massachusetts, has taken a procedural step forward. Plans for the 1 GW Deepwater Wind Energy Center, being developed by Deepwater Wind, have officia…

Near Net Zero Reached at Frito-Lay Plant

Five solar installations produce 10 million kilowatt-hours of power. Photos from Frito-Lay

If only more existing buildings would go “net zero”. The Empire State Building has saved 40% in energy costs with a major retrofit. Now a Frito-Lay facility, a…

Elon Musk Answers Reddit’s Questions on Everything

Photo: Youtube screen capture

CEO of Tesla Motors and SpaceX, Chairman of SolarCity, and Tony Stark Model
Too few entrepreneurs dream big. Most would like to create a popular iPhone app rather than aim high. But not Elon Musk. The co-founder of Paypa…