Free Republic

Work has begun to lay the underwater cable for the first electricity interconnector between Ireland and mainland Europe. It marks a major milestone in the €1.6 billion ($1.9 billion) Celtic Interconnector project, which will link the electricity grids of Ireland and France to ensure security of power supply. A specialist marine vessel Calypso, from Norway, has begun cable-laying along an 84-km (52-mile) section of the route. Once fully installed, the entire 575-km (357-mile) interconnector will run from east Cork to the northwest of Brittany. It will allow for the exchange of 700 MW of electricity, enough to power some 450,000...

Thomas Edison and his direct current, or DC, technology lost the so-called War of the Currents to alternating current, or AC, in the 1890s after it became clear that AC was far more efficient at transmitting electricity over long distances. Today, AC is still the standard for the electricity that comes out of our wall sockets. But DC is staging a roaring comeback in pockets of the electrical grid. Alstom, ABB, Siemens and other conglomerates are erecting high-voltage DC grids to carry gigawatts of electricity from wind farms in remote places like western China and the North Sea to faraway...