Enabling Geothermal Heat Transfer from Subway Tunnels
A few years ago we described a heat exchange application that uses the warm water in the Paris sewer system to heat buildings above. Now, researchers at EPFL in Switzerland [...]
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Recycling biosolids to make sustainable bricks
How can you recycle the world’s stockpiles of treated sewage sludge and boost sustainability in the construction industry, all at the same time? Turn those biosolids into [...]
Mining Nutrients From Wastewater
Editor’s Note: This article is part of a series of guest columns on innovative energy technologies and opinions. Yalin Li, Colorado School of Mines Most people think as [...]
Energy-Generating Bricks Use Thermal Differential
A recently developed thermal brick has the capability of providing affordable energy and shelter for developing countries or temporary communities. An international team of [...]
Switching to electric vehicles could save the US billions, but timing is everything
Editor’s Note: This article is part of a series of guest columns on innovative energy technologies and opinions. F. Todd Davidson, University of Texas at Austin; Dave [...]
“Deep Farms” Could Avoid Inefficiencies of Surface Farming
In these days of increased concern about climate change, two of the greatest vulnerabilities affecting our current food production are the availability of arable land and the [...]
Germany Debuts First Hydrogen Powered Train
The world’s first hydrogen fuel cell train rolled into the station last Sunday. The Coradia iLint train, built by Alstom in Salzgitter, Germany, is equipped with fuel cells [...]
InPipe Energy: Power through Pressure
It’s the new hydropower. Not dams, no reservoirs, just pipes. With help from Oregon State engineering researchers, an Oregon startup company is developing a system to [...]
3PLW Digests Food Waste for Cost-Effective Bioplastic
Waste: a growing problem and opportunity As the world’s population grows to 8.5 billion by 2030 and urban centers become denser, processing waste is going to be one of [...]
Dance Power: Harvesting Movement Energy
If you’re seeking to engage the general population in thinking about renewable energy, you may have an uphill battle. However, one company has figured out a way not only to [...]
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