This is the story of LNG, liquid natural gas.

Terminals such as grain, there's many of them dotted all around Europe,

have gone from being maybe sort of 50% utilised or maybe even less,

to being all out utilised.

So we're seeing every space in those terminals needed.

How in the last year it played an enormous role in keeping the lights on in Europe.

It's stored as a liquid because it's 600 times smaller in volume than it is as a gas.

And it's much safer and easier to transport around the world to its destination.

But should the default to cutting Russian gas be to turn to more gas from elsewhere in the world?

And it's really focused people's minds in terms of the clean energy transition.

And if we're generating an alternative or creating an alternative to Russian gas,

why would we not create an alternative that is much more environmentally friendly and low-carbon?

This is a special edition of BBC Business Daily coming to you from the biggest LNG terminal in Europe. I'm Rick Kelsey,

looking into the role the fuel is now playing across the continent as pipelines from Russia were

restricted. That's the sound of frogs mating in wetlands. There are no homes for miles around here.

There are actually few places in the south of England, as remote as this. I'm in the Isle of Grain in Kent, home of Europe's highest capacity LNG terminal.

Next to the fog's police cars patrol the perimeter.

Security is tight here.

I've been screened and have to touch my visitors pass

as we go through various security gates on route to the dock,

all in full personal protective equipment.

We're heading to a boat, the length of three football pitches that's just arrived from Louisiana in the United States.

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