The difference between turbocharging and supercharging is simple: a turbocharger boosts engine air pressure by using exhaust gas to power a turbine that pushes more air into the combustion chamber.

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The next stage sees air sucked in through the nose of the turbine via a device known as an "air blower".

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During peak energy hours, air is released powering a turbine, which in turn produces electricity.

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During peak hours the air is released to drive a turbine.

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In a moment of inspiration, Garvey realized that air could be compressed using a wind turbine or a wave-powered device.

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Higher as in 1, 200 degrees Celsius, which would heat air hot enough to run a high efficiency turbine like those used in fossil fuel power plants.

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The idea is that the pressure around a rotating turbine blade is lower than in the surrounding air.

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Unlike the more familiar turbojet, which uses a turbine-powered fan to compress the incoming air before it is mixed with fuel, a ramjet compresses air by forcing it down an ever-narrowing funnel.

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