GE Renewable Energy’s Grid Solutions business has been awarded EUR 2.5 million through the European Commission’s LIFEclimate action program to help fund the development of a sulfur hexafluoride free 245 kilovolts G Cubed live tank circuit-breaker. The new circuit-breaker will rely on GE’s industry-leading g cubed gas technology to deliver the same high performance and compact dimensional footprint as a traditional SF6 circuit-breaker. The co-funding reflects the EU’s commitment to accelerate the decarbonization of Europe’s electrical grids and help them get ready for the EU’s stricter fluorinated gas regulation, which aims to cut F-gas emissions by two-thirds by 2030. GE’s g³ gas is a game-changing alternative to SF6 - a potent greenhouse gas - with a global warming potential that is about 99% less compared to SF6.The new GE air-insulated 245 kV g3 live tank circuit-breaker, which will be based on International Electrotechnical Commission (IEC) standards, is the second g3 gas project co-funded by the EU. In 2019, GE received funding for a g3 gas-insulated 420 kV circuit-breaker, also as part of the EU LIFE Program. GE’s Grid Solutions teams will work with several European partners on this second EU-funded g³ gas project, including Germany’s Leibniz Institute for Plasma Science and Technology, which will build a scientific database of g³ gas properties. Industrial partners will help optimize the environmental impact of the new circuit-breaker throughout its entire life cycle.Due to its strong insulating and arc-quenching properties, SF6 is widely used in substation equipment with the transmission industry accounting for approximately 80% of the world’s usage. Identified as a potent greenhouse gas by the 1997 Kyoto Protocol, SF6 is estimated to contribute 23,500 times more emissions than CO₂ when leaked and can remain in the atmosphere for up to 3,200 years.A circuit-breaker is a protective device used on the high voltage electrical network in case of a problem on the grid to cut or redirect the power through another path to avoid blackouts. High-voltage 245 kV circuit-breakers are found at electrical substations on transmission lines carrying the power to or within regional areas.