Wedged between the southwestern town of Bridgwater and the Severn estuary is a 430-acre site where some of the U.K.'s future electricity hopes are pinned. Now reaching over 100 feet high, construction on the first of two nuclear reactors at the Hinkley Point C generating station is well underway, after years of planning. Hinkley Point C is set to be one of the the biggest power stations in Britain and will generate 7% of the country's electricity. Around 8,000 workers, many of them currently living on-site, are shuttled between work and home at any hour of the day, seven days...