Load flow and nodal price modeling software platforms (such as PSLF, PSSE, PROMOD, UPLAN, Dayzer, etc.) and associated data structures • Should have experience with transmission modeling; analytical applications such as Excel, SQL, Visual Basic, Python, R, SAS, C++, Java/.NET, and other programming languages. Calpine, a business unit of Constellation Energy Corporation (Nasdaq: CEG), is America's largest generator of electricity from natural gas and geothermal resources with operations in competitive power markets.