Nu1 Dry Air GIS

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4 Deploys

Dry-air Medium Voltage (up to 36 kV) gas insulated switchgear

Page last modified
April 11 2024

Nuventura’s nu1 gas insulated switchgear uses dry technical air as an insulation medium, maintains all the benefits of f-gas based GIS, and provides additional safety and asset management features unmatched by the competition. The primary single busbar GIS technology covers the medium voltage range up to 36 kV.

We license our technology to switchgear manufacturers to allow them to extend their product portfolio fast and efficiently. With our focus on R&D and product development, based on input from DSOs and the industry, we function as an R&D center and enable access to this new generation of switchgear to all switchgear manufacturers. The technology offers manufacturers independence of the competition and is suitable to the typical production capabilities of AIS and GIS manufacturers alike.

Pros & Limitations
We enable switchgear buyers to significantly reduce their carbon footprint by adopting completely sustainable and greenhouse gas-free switchgear technologies
It is highly likely that in the next five years, SF6 will begin to be phased out in these regions and around the world. Our dry-air alternative is immune to any disruption caused by the changing regulation
Gas insulated switchgear (GIS) are considered premium products due to their compact dimensions and high reliability. Our sustainable, dry-air alternative maintains these benefits whilst not compromising on performance
24/7 condition monitoring to make redundant in-person physical inspection, and helps prolong the technology's operational lifetime
By replacing the SF6 with a sustainable alternative such as dry-air, recycling costs are eliminated
Despite the technology being completely certified (type tested) according to IEC standards, it has only been installed in a handful of demonstration projects. To become fully established this list of reference projects will have to grow
Technology cost. Due to our current small volume production capabilities, costs for projects with our dry air GIS may be higher than for projects using established SF6-using GIS
Specification Title Specification Description
Compatible with an increasingly strict regulatory framework: due to SF6's high global warming potential, it is increasingly being scrutinized by regulators (especially in the EU and USA).
Enables asset management benefits through digitisation: our technology's design and use of dry air as the insulating medium enables for the integration of sensors which provide 24/7 condition monitoring
Reduced total cost of ownership: traditional SF6-GIS contain additional operation costs associated with the handling and end-of-life recycling of SF6 which amount to 20% of the product's purchasing price.
Certifications / licenses
The technology has been fully certified (type tested) according to the rigorous IEC Standards.
Significantly reduce their carbon footprint by adopting completely sustainable and greenhouse gas-free switchgear technologies.


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Development Technology demonstration Mature / Proven
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Nuventura is the provider of the world’s first MV (up to 36 kV) GIS that replaces SF6 – the world’s strongest greenhouse gas – with dry (technical) air. In addition to being completely compatible with increasingly strict regulatory oversight (and the energy transition in general), our technology’s use of dry-air enables improved asset management through the integration of sensors. Our business model consists of licensing the full technology to OEMs, as well as directly selling core tanks.

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