UK Power Networks launched the country's first independent Distribution System Operator (DSO) in April 2023, the company has said1. The DSO covers London, the East and the South East of England, the areas served by the company's electricity distribution network1.
The company states that it guaranteed the DSO's independence by establishing it as a separate legal entity, with its own independent supervisory board, executive management level representation within UK Power Networks and what it describes as clear incentives from the regulator, Ofgem1. An Operational Agreement between the DSO and the distribution network operator (DNO) sets out responsibilities and addresses potential conflicts of interest or misaligned incentives, with the company aiming for 100% compliance1.
"We have set ourselves ambitious targets including a reduction in network reinforcement costs of over £400m by 2028."
The DSO describes three main roles: network strategy and local Net Zero, market development through flexibility products and services, and network operation1. Flexibility, in this context, means using existing infrastructure intelligently rather than building more of it1. The company says it is taking a flexibility-first approach to planning its network, and that its stated aim is to provide, at lowest cost, enough electricity capacity across its three regions to facilitate the transition to Net Zero1.
Reported figures for the DSO's operation include more than 6,000 flexibility dispatches, 98.9% generation availability and 165 GWh of extra green generation unlocked during outages1. Nearly 6,000 users have engaged with its Open Data Portal1. The DSO Operations Team won Team of the Year at the Energy Awards, and the DSO Local Net Zero team took the Engagement Award at the Energy Institute's International Energy Awards in London on 29 February, for collaboration with local authorities1. The company has not reported how many households, if any, participate directly in its flexibility market, or what share of domestic customers in its regions are affected by DSO decisions.
Why it matters for households
The DSO sits alongside the UK Power Networks DNO, which remains the licence holder responsible for the physical wires and for connections. For a household, the practical effect of the split is that decisions about where capacity is released, when reinforcement is deferred and how flexible services are bought are taken under a separate governance structure with its own board and Ofgem incentives1. The company's stated target of cutting network reinforcement costs by over £400m by 2028 is a network cost, and the sources do not say how or whether that would feed through to household bills1. Households in the three regions can check which operator covers their address using the site's guide to who is my distribution network operator.
What happens next
In April 2025 the company published the third version of its DNOA suite of documents, comprising a methodology setting out governance processes for recommending and approving investment decisions, plus reports summarising approved recommendations1. It has also published a DSO Performance Panel Report and a KPI dashboard1. No further dated steps have been reported.
Sources1 cited
- UKPN Distribution System Operator (DSO) - UKPN DSO, dso.ukpowernetworks.co.uk