Why ageing pressure regulators pose a risk to Europe's gas resilience

Europe could rebuild its gas reserves and still leave a weakness in its winter preparations, as ageing equipment struggles to deliver supply when demand changes. EU gas storage was 63% full at the end of August, against an average of 80% for that time of year, but filling that gap will not resolve weaknesses in the network carrying gas to customers. Operators need to assess whether existing pressure regulators and associated valve components can continue to perform reliably as network conditions become more demanding.

As gas demand fluctuates alongside renewable generation and changing electricity consumption, pressure regulators and associated valve components must maintain stable outlet pressure despite variations in flow and inlet conditions. Some regulators remain in service long after manufacturer support has ended, leaving operators facing scarce replacement parts and potentially lengthy repairs if equipment fails.

Biomethane will also change the conditions these assets must handle, with more dispersed injection points altering flows across the grid. Operators need to assess whether existing equipment can accommodate those changes without increasing maintenance requirements. Replacing every pressure-reduction station would be costly and disruptive, especially at underground or constrained sites. Where pipework and civil infrastructure remain serviceable, replacing an obsolete regulator or module can address the immediate reliability risk without waiting for a complete rebuild.

Oxford Flow developed PRISM with Cadent to replace legacy underground pressure-regulation modules within existing stations, requiring limited alterations. This avoids relocating the installation and allows maintenance on site, giving operators a practical way to renew vulnerable assets across a large network.

For gas network operators, identifying obsolete pressure-regulation equipment and prioritising targeted upgrades will be essential to maintaining reliable supply as demand patterns evolve. Addressing these vulnerabilities before failures occur can help ensure that Europe's gas reserves translate into dependable delivery.

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