Siemens Energy India advances cleaner high-voltage grid infrastructure with its Blue portfolio

New Delhi: Siemens Energy India on Monday announced the successful commissioning of its first sulfur hexafluoride-free circuit breaker at the 145 kV level in Goa, bringing its Blue high-voltage technology into operation in India.

The commissioning marks an important step in enabling more sustainable high-voltage grid infrastructure and supporting ongoing decarbonisation efforts across the power sector, a company statement said.

High-voltage circuit breakers are critical components of the transmission networks, helping protect the grid by safely interrupting electrical currents during faults and enabling reliable power transmission.


Traditionally, such equipment uses sulfur hexafluoride (SF₆) for its strong insulating and switching properties.

While effective, SF₆ is a fluorinated greenhouse gas with significant environmental impact.

Siemens Energy's Blue portfolio addresses this challenge through clean air insulation and vacuum switching technology, eliminating the use of SF₆ and other fluorinated greenhouse gases while maintaining the reliability and performance required for transmission networks.

Guilherme Mendonca, Managing Director and Chief Executive Officer, Siemens Energy India, said in the statement. "The commissioning of the 145 kV SF₆-free circuit breaker in Goa is an important step in bringing cleaner high-voltage technologies into India's transmission ecosystem."