Image source: GE Grid Solutions

GE’s g3 technology to accelerate decarbonization efforts in Sweden

Sweden, Västerås: GE Renewable Energy’s Grid Solutions business has been awarded a contract for Sweden’s first SF6 free gas-insulated switchgear (GIS).

The equipment will be installed at the Vattenfall Eldistribution AB Lindhov substation in Tumba, located approximately 25 km from the centre of Stockholm. The switchgear will feature GE’s industry-leading g3 (pronounced “g”- cubed) gas, a game-changing alternative to SF6 – a potent greenhouse gas – with a global warming potential (GWP) that is about 99 % less compared to SF6.

The project scope covers the design, engineering, delivery, and erection and commissioning of eight bays of GE’s F-35-41g 145 kV g3 switchgear.

“This contract represents GE’s latest g3 switchgear award and demonstrates that utility operators are becoming increasingly aware of their environmental footprint and the impact it has on their communities and the world around them. Today, 25 leading electrical utilities have already adopted GE’s g3 gas products for their high voltage networks, avoiding the addition of more than a million tons of CO₂ equivalent to the grid. That is the equivalent of removing about half a million petrol cars from the road for one year,” said Mikael Grage, Managing Director – Sweden at GE’s Grid Solutions.

A recent EU Commission report concluded that fluoronitrile-based gas mixtures – such as g3 gas – may be the only insulating and switching gas alternative to SF6 when space is a constraint, such as in urban areas. That is because fluoronitrile-based gas products feature the same compactness and performance as traditional SF6 equipment, unlike other SF6-free solutions.

GE’s g3 gas-insulated products are currently available for live-tank circuit-breakers and gas-insulated substations (GIS) up to 14 kV, as well as gas-insulated lines (GIL) up to 420 kV.

Source: GE Grid Solutions