July 15 (Reuters) - Asset management firm Blackstone

will announce on Tuesday a $25 billion investment in data

centers and energy infrastructure in Pennsylvania, Chief

Operating Officer Jon Gray said at a panel at the Energy and

Innovation Summit in Pittsburgh.

Gray said Blackstone had identified several sites to build

large data centers and would also later be announcing with a

Pennsylvania utility a plan to build a number of natural gas

generation plants.

(Reporting by Ryan Patrick Jones in Toronto)