Pylons average about 30 tons each and steel costs $300-$400 per ton. The UK has about 88,000 pylons. If the new design increases the weight by 20%, then materia

Pylons average about 30 tons each and steel costs $300-$400 per ton. The UK has about 88,000 pylons. If the new design increases the weight by 20%, then material costs alone would be about $2100 each or $168 million to replace them all.