In New York, the US financial capital, an explosion at a sub-station caused power outages and darkened most of downtown Manhattan as well as Westchester County and affected more than 650, 000 customers, power company Consolidated Edison said.
As more turbines are approved, the National Grid is legally obliged to extend the power infrastructure - and that's why there are plans for pylons and a sub-station to be built in Powys so that the power generated by wind farms is taken to the rest of the country.
In May, an India-made power transmission line to Kabul and a sub-station were opened, bringing 24-hour electricity to the capital for the first time in 17 years.