Engineering

New hybrid device can both capture and store solar energy

Researchers from the University of Houston have reported a new device that can both efficiently capture solar energy and store it until it is needed, offering promise for applications ranging from power generation to distillation ...

Energy & Green Tech

Using mountains for long-term energy storage

Batteries are rapidly becoming less expensive and might soon offer a cheap, short-term solution to store energy for daily energy needs. However, the long-term storage capabilities of batteries, for example, in a yearly cycle, ...

Energy & Green Tech

Farewell, oil: It's time to turn our backs on an old friend

They heat our homes, power the coffee maker and keep the factories that make our clothes running. They serve as raw material for our yogurt cups, transport us to work and bring food to the shops. Fossil fuels—oil, coal ...

Energy & Green Tech

Calcium batteries: New electrolytes, enhanced properties

Calcium-based batteries promise to reach a high energy density at low manufacturing costs. This lab-scale technology has the potential for replacing lithium-ion technology in future energy storage systems. Using the electrolytes ...

Energy & Green Tech

How to have an all-renewable electric grid

The main solution to climate change is well known—stop burning fossil fuels. How to do this is more complicated, but as a scholar who does energy modeling, I and others see the outlines of a post-fossil-fuel future: We ...

Engineering

Takes a licking and keeps on storing

Researchers at Washington University in St. Louis made an energy storage device that can withstand a hammer striking it more than 40 times. The shatterproof supercapacitor is also nonflammable, unlike lithium-ion batteries. ...

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Energy storage

Energy storage media are matter that store some form of energy that can be drawn upon at a later time to perform some useful operation. A device that stores energy is sometimes called an accumulator. All forms of energy are either potential energy (eg. chemical, gravitational or electrical energy) or kinetic energy (eg. thermal energy). A wind up clock stores potential energy (in this case mechanical, in the spring tension), a battery stores readily convertible chemical energy to keep a clock chip in a computer running (electrically) even when the computer is turned off, and a hydroelectric dam stores power in a reservoir as gravitational potential energy. Ice storage tanks store ice (thermal energy)at night to meet peak demand for cooling . Even food is a form of energy storage, chemical in this case.

This text uses material from Wikipedia, licensed under CC BY-SA