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Interconnectors

Chris Pearson

This topic came up in another forum where the original subject was the forthcoming ban on domestic coal.

I reckon that EdF would not have invested in IFA2 (local to me) with the aim of importing leccy, but the publicity materials mention the benefits of flow either way.

In my mind's eye I can visualize a bunch of generators being connected by the national grid such that their power flows down a voltage gradient to millions of consumers: the average voltage in the power stations must be higher than that at the consumers' intakes.

With me so far?

So how is the direction of flow in the interconnectors managed?

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    Many moons ago, I was working on the Channel Tunnel. The main DC cable to France runs straight through the approach to the UK terminal and the suggestion was made that it might be diverted to allow the works to proceed without danger of damaging it or the poor digger driver who might find it accidentally.

    The sum to divert is was not too great but then they added the compensation for it being out of use while any work was done - £1 million a day to compensate for the loss of profit.

    The cable stayed in place and was looked after very carefully.

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    Many moons ago, I was working on the Channel Tunnel. The main DC cable to France runs straight through the approach to the UK terminal and the suggestion was made that it might be diverted to allow the works to proceed without danger of damaging it or the poor digger driver who might find it accidentally.

    The sum to divert is was not too great but then they added the compensation for it being out of use while any work was done - £1 million a day to compensate for the loss of profit.

    The cable stayed in place and was looked after very carefully.

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