Energy & Green Tech

The role of energy density for grid-scale batteries

Because the sun does not shine at night but all our screens do, we need energy storage to shift solar energy production during the day to when it is needed in the evening. To cope with this intermittence of renewables, we ...

Energy & Green Tech

Harvesting energy from moving trains

The Virginia Tech Center for Vehicle Systems and Safety (CVeSS) and the Railway Technologies Laboratory want to harness the energy created by moving trains and transform that energy into usable electricity.

Energy & Green Tech

When the sun switches off the solar panels

The more the sun shines in the southern German town of Aurach, the more likely it is that Jens Husemann's solar panels will be disconnected from the grid—an exasperating paradox at a time when Germany is navigating an energy ...

Engineering

Drone-delivered defibrillators could save lives

As a kid, Justin Boutilier would sometimes get roped into helping his dad, a paramedic and firefighter, perform automated external defibrillator (AED) demonstrations in and around his hometown of Niagara Falls, Canada.

Energy & Green Tech

Study measures Switzerland's potential geothermal heating capacity

An EPFL Ph.D. student has calculated the maximum amount of geothermal energy that could theoretically be extracted using ground-source heat pumps in the Cantons of Vaud and Geneva. In a study combining data on the area available ...

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