Using Magnetic Levitation In Wind Turbines

Today, I wrote a post for TreeHugger about a company that is proposing to build a colossal magnetic levitation wind turbine. Magnetic levitation (or maglev) is an interesting technology that has been around for a while.

No Impact Man

No Impact Man is really on the cutting-edge of efficient, green living. This recent post is a good introduction to what he is all about. While some might think this kind of living is extreme, I think his approach to living actually very practical. It just goes against-the grain our very ineffective societal norms.

High Speed Trains For The U.S.

We are exchanging post with the Ecotality blog today. This post looks at Europe’s expanding high speed rail systems: While America’s leaders fiddle around and our rail seems to go down in flames, Europe is strengthening its rail system. Two interrelated items to consider: High-Speed Trains are expanding in Europe and are cutting travel times, and European train systems are …

Electric Tankless Water Heaters

Note: This post has been expanded and updated for 2009! Tankless water heaters only heat water when it is needed. About 8% to 30% of the energy consumed by a standard water heater goes to keeping the water hot while it’s not being used. New tankless systems heat the water instantly when you turn on the faucet, rather than keeping …