Britain could scrap the 18 billion-pound ($23 billion) nuclear power plant at Hinkley Point and get the same amount of electricity from offshore wind turbines for roughly the same investment. That’s the assessment of Bloomberg New Energy Finance following Prime Minister Theresa May’s decision to review whether to proceed with the first new atomic plant in more than three decades. For the same capital costs, the U.K. could install about 830 new turbines at sea,…