Simpson Thacher & Bartlett has taken a lead corporate role for Pennsylvania Power and Light (PPL) on its £4bn acquisition of E.ON’s UK power networks following a competitive auction.

The US law firm was instructed less than six weeks ago, and fielded a team led by London corporate partner Adam Signy (pictured). Other partners to act on the deal included New York capital markets head Vince Pagano and fellow corporate partner James Cross.