SULLIVAN COUNTY, Ind. — A multi-billion-dollar data center project planned for Sullivan County will be one of the largest in Indiana. U.K.-based Potentia Inc. said its $65 billion investment will bring nearly 3,000 construction jobs and 500 permanent jobs to the area. The 500 jobs at the Heartland Industrial Park will mainly be site technicians, engineers and facility managers. Potentia Inc. develops large-scale infrastructure to power demanding…