Even when energy comes from renewable sources its constant supply at any location requires large and intricate webs of cables or pipes. For electricity, towers are needed to suspend transmission cables above ground. High energy lines have metal pylons and usually carry 69 or 230kV AC.

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The government in North Korea has a national Coat of Arms boasting its modern technology.

In Greece, more modest local distribution lines are suspended from wooden posts carrying up to 30kV. The wood serves to insulate against a voltage surge. It also give flexibility for innovative design

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Others are much simpler, even appearing to go nowhere

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A pylon-like wooden pole symbolised Christ’s Cross in Deborah Warner’s production of Colm Toibin ’s Testament of Mary, recently staged in New York and