World’s Largest Solar Roof To Power High Speed Rail Station in China

Efficiency abounds in China as the world’s largest building integrated photovoltaic project prepares to power the railway station where some of the world’s fastest high speed trains pass through. China Sunergy, a solar cell and module manufacturer based in Nanjing, China, has recently signed a deal with CEEG (Nanjing) Solar Energy Research Institute to supply the 7MW solar modules for …

3 Reasons Light Rail is an Efficient Transportation Option for U.S. Cities

Light rail is a type of electric railway that runs on right-of-way railroad tracks or on tracks in city streets. Using their own lanes and able to go anywhere, light rail cars mix well in urban settings by not getting caught up in traffic congestion. Though the United States operates the largest and most efficient freight railway system in the …

Efficient: Books That Explain Train Travel In North America

Train travel is one of the most efficient forms of transportation. However, in North America, traveling by rail is not particularly systematic or comprehensive. It’s difficult to get an overview of what’s available. Thankfully, there are several good books on North American train travel, which I read recently. Here’s a brief review:

Biogas: Producing Ultra-Efficient Fuel From Sewage

We could be generating huge amounts of power from sewage. The process is fairly simple — just ferment sewage to produce a fuel called biogas. Biogas is almost entirely methane, and so is natural gas, so the two are essential interchangeable. The potential to produce biogas is almost entirely overlooked by most countries — except Sweden.