UPFC (Unified Power Flow Controller) is third generation of FACTS. Till date, reactive power compensation was either provided in series configuration or shunt configuration but UPFC is a device which is a combination of STATCOM (Static Synchronous Compensator) and Static Synchronous Series Compensator (SSSC) based on VSC (Voltage Source Converter) technology. The key components in this device are solid state devices which are better in response as compared to thyristor based technologies. Siemens already offers a range of devices for grid stabilization and is a leader in STATCOM global market. Reactive power compensation, voltage control and active power load flow control will be possible with this single offering of Siemens. This new technology will surely give Siemens a technological advantage over its competitors. Link to the news: https://press.siemens.com/global/en/pressrelease/grid-stabilization-power-greener-future-siemens-energy-launches-upfc-plus