Building nuclear reactors out of factory-produced modules was supposed to make their construction swifter and cheaper, leading to a new boom in nuclear energy. But two U.S. sites where nuclear reactors are under construction have been hit with costly delays that have shaken faith in the new construction method and created problems concerning who will bear the added expense. “Modular construction has not worked out to be the solution that the utilities promised,” said Robert B. Baker, an energy lawyer at Freeman Mathis & Gary LLP in Atlanta and former member of the Georgia Public Service Commission, the state utility authority. The new building technique calls for fabricating big sections of plants in factories and then hauling them by rail to power-plant sites for final assembly. The method was supposed to prevent a repeat of the notorious delays and cost overruns that marred the last nuclear construction cycle in […]