POWER provided engineering services for the installation of a static var compensator (SVC) at a 345 kV substation owned by a large investor-owned utility. The project was needed to improve system performance and limit voltage transients at the substation. POWER teamed with an EPC contractor for the project. The new system provides -125 to +350 Mvar continuous compensation using one TCR branch, two TSC branches and 5th and 7th harmonic filters. The project also included controls of two new 345 kV 200 Mvar mechanically switched capacitor banks. POWER’s scope included complete physical arrangement, busing, foundation, structures, static protection, lighting, grounding, protection and control, wiring, control shelter, station service, testing and commissioning, and fiber optic communications.