Talen Energy is looking to sell its stake in a cryptocurrency mining operation powered by its Pennsylvania nuclear plant in a process marketed to both data center developers and cryptominers, three sources familiar with the process said. The Nautilus facility is the first digital coin mining operation directly supplied with on-site nuclear energy, which recently became a premium power source as the world's largest companies race to expand their artificial intelligence and cloud computing businesses. Many technology companies have climate pledges to power their data centers with clean energy, but the companies also require those centers to run uninterrupted.