Gas Distribution Networks
The UK gas sector is undertaking a major replacement programme of ferrous mains to reduce the risk of leakage and mains breaks. To achieve the mains renewal target within the current RIIO-GD1 period, it is estimated that 2,000 km of service pipe will also need to be replaced by Cadent.
Currently, only plastic polyethylene (PE) or steel pipes are allowed as permanent replacement solutions. In many cases the CIPP technologies can be less expensive and less disruptive and provide better capacity than standard replacement methods. As such, the gas industry is considering the potential to deliver cost savings and reduce social and environmental disruption through the use of these technologies. Lining technologies are also often more practical, especially in congested urban environments where they have a smaller site ‘footprint’ and typically a faster installation rate than conventional techniques.
The ideal solution would offer a fully structural replacement back to original meter position therefore leading to less re-sited meters