Water, waste and walking - Innovative ways to generate renewable energy

Posted 07/11/2019 by E.ON

Innovation is happening all the time in the renewable energy world. We’re already providing our customers’ homes with electricity backed by 100% renewable sources1, and these inventions are great examples of the exciting ways we can create renewable power. 


The Waterotor is a new solution for generating energy from slow moving water. According to its Canadian inventors, what's most exciting is that it’s the first invention to efficiently and economically create energy from slow moving water which covers 71% of the planet in rivers, canals, and ocean currents, and it provides no threat to marine life. 

The Waterotor sits on the bed of the river, canal or ocean and its rotors are propelled by the water's movement. It's a hydrokinetic system, which means that it produces renewable electricity by harnessing the kinetic energy of a body of water, the energy that results from its motion. 


The Homebiogas system is a revolutionary new biogas digester that treats organic waste in a local and sustainable way. This simple to install system produces biogas for cooking and rich fertilizer for your garden. Its inventors have been trialling different versions since 2014 and have used them to create energy in Bedouin villages and Palestinian communities. 

Now they’ve refined the system and it can be easily delivered to homes all across the world that have no access to clean gas, enabling them to produce their own gas for cooking. 


The Pavegen floor tile system generates electricity as people walk across it. The weight from their footsteps compresses electromagnetic generators beneath the tiles to produce off-grid electrical energy with every step. Bluetooth technology connects to smartphones so that people are rewarded for walking and generating power. Its inventors believe it can help make people more interested in sustainable living if they feel directly connected in this way.

Vortex Bladeless

The Vortex Bladeless is a wind turbine that, as the name suggests, has no blades. It's a vortex induced vibration resonant wind generator that harnesses wind energy from a phenomenon of vorticity called vortex shedding. This basically means that when the wind blows across it, low-pressure zones are created down its sides that in turn gives rise to a fluctuating force that sits at a right angle to the wind and creates the energy. The inventors say going bladeless will make wind power more cost efficient too.


The Eli-Home battery has been invented by a Chilean clean-tech start up and charges itself using solar power and can be used as an electric grid to easily enable homes to power themselves. The inventors say that it's also a smart battery that can be programmed to store power and use it at different times. Users can control it from their smartphones and tell it which devices in the home they want it to send power to.

There are many exciting developments coming along all the time in the renewable energy world, meaning we can move steadily towards a more sustainable future.



1. Electricity sourced from E.ON’s renewable generation assets, supply agreements with independent UK wind generators and the purchase of renewable electricity certificates. The electricity supplied to your homes comes from the National Grid. Find out more at eonenergy.com/renewable


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