Independent Distribution Network Operators (IDNOs) design, develop, operate and maintain local electricity distribution networks, constructed by Independent Connections Providers (ICPs), under a licence granted by Ofgem.
- IDNO networks are directly connected to the Distribution Network Operator (DNO) networks or indirectly to the DNO via another IDNO
- Unlike the DNOs, that cover 14 geographical areas in the country, IDNOs are not restricted to a geographical region and can operate across the UK.
- Independent Gas Transporters (IGTs) design, develop, operate and maintain local gas transportation networks, constructed by Utility Infrastructure Providers (UIPs), under a licence granted by Ofgem
- IGT networks are directly connected to the Gas Distribution Network (GDN) or indirectly to the GDN via another IGT
- IGTs design and construct gas infrastructure and retain ownership of the networks. The license also enables IGTs to adopt newly built networks, designed and built by third parties
- Unlike the GDNs, which operate in distinct geographies, IGTs can operate across the UK.