Energy from rain

Solar power is old news but what if you could generate power on rainy days too?

Thanks to some scientists in France that possibility may soon become a reality. Researchers at the Grenoble (France) based Atomic Energy Commission are hoping to harness energy released from a variety of clean sources. They’ve simulated raindrops falling in order to collect the electric energy produced by the drops. The materials used materials with built in sensors that can convert mechanical energy into an electrical charge. The scientists say that despite harnessing only a very small amount of electricity it’s a step in the right direction. This energy will be used to feed some sensors which measure for instance temperature, the level of the water and then transmit this information to a remote control panel where it can be used.

The aim of the researchers is to help in reducing dependence on conventional batteries which need recharging or changing and create toxic waste. The idea is to recuperate energy to feed low consumption communicating devices.

Another example developed by the team is a thermometer which feeds on the energy generated by the touch of a button.

Elsewhere in the laboratory scientists are looking at how power generated through heat can operate everyday lightning appliances. By simply placing your thumb on a sensor you can harness enough heat to switch on a small desk lamp. Despite not feeding the lamp itself it’s enough to activate the switch which then remotely turns on the light.

Those involved in the project hope that one day their work will help to power a cleaner and greener society.