Siemens Energy and Norwegian distribution system operator Lyse Elnett signed a framework agreement to strengthen the Norwegian power grid. Under this agreement, Siemens Energy will provide services and transmission products for various substations in the Sør-Rogaland region in Southern Norway. By constructing new substations and modernising existing ones, Lyse Elnett not only rises to the challenges of increasing energy demand and the volatile feed-in of renewables: the framework agreement also stipulates that Lyse Elnett can, over time, fulfil its objective of more environmentally friendly power transmission by eliminating fluorinated gases (F-gases) in their substations.

“Limiting the environmental impact of our operations without compromising on safety and reliability of power transmission, is a top priority for us. When it comes to reducing the usage of Fgases, we know that the alternatives from Siemens Energy have zero global warming potential. The agreement is an essential step on our pathway to a more environmentally friendly operation of our substations,” says Evy Thorbjørnsen, project director at Lyse Elnett.

Norway is one of the global front-runners in phasing out climate-harming F-gases in the power grid. In the past two years, Siemens Energy has received orders for more than 60 bays of F-gas-free gas insulated switchgear (GIS) up to 145 kilovolts from Norwegian grid operators. The centerpiece of the switchgear is the combination of clean air and the game changing technology of vacuum interrupter. In medium voltage applications, for decades the vacuum interrupter units, which are sealed for life, have shown the outstanding performance. Since 2010 Siemens Energy’s vacuum interrupter technology is available for high-voltage switching applications and have reached almost 6-million hours of commercial operation, demonstrating the outstanding performance capabilities.

“Driven by the same goal to transmit power efficiently at the highest levels of safety, while also helping to reduce the ecological impact of power transmission, our state-of-the-art transmission technologies will accompany Lyse Elnett on their pathway towards decarbonisation,” says Beatrix Natter, Executive Vice President Transmission at Siemens Energy. “Redesigning switching technologies in substations and avoiding F-gases is key to make the transmission grid more sustainable.”

Provided that the total agreement’s scope of supply for the maximum runtime of eight years are called up, the agreement has a total volume of estimated 200 million Euros. The agreement covers design and construction of new substations as well as modifications and upgrades of existing substations, including the supply of transmission products and services. The largest and most important assignments will be the delivery of 145 kV GIS with associated protection and control systems.

Image source: Courtesy of Siemens Energy

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