Substation site and pylons route in mid Wales to be identified

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The preferred site for building a controversial electricity substation and more than 100 pylons in mid Wales is due to be announced on Tuesday.

The plan to connect windfarms to the National Grid sparked one of the largest ever protests at the National Assembly in Cardiff.

Opponents to the proposal say it will spoil the Montgomeryshire countryside, with Abermule and Cefn Coch the locations under consideration.

BBC Wales environment correspondent Iolo ap Dafydd reports.

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