UK Power Networks Services has signed a 24 million GBP contract to deliver High Voltage (HV) power network upgrades to support new rolling stock on London Underground’s Piccadilly line.
The work forms part of a broader infrastructure programme preparing the network for the introduction of the new trains.
This is the second contract awarded under the programme. Once all associated works are completed, the upgrades will enable a planned increase in service frequency to 27 trains per hour on the Piccadilly line during peak periods. The improvements will also provide additional resilience for parts of the Northern line.
The scope of the contract includes substation upgrades and HV equipment enhancements at various sites. Works will take place at locations including Neasden, Acton Town and Ravenscourt Park. These upgrades involve modifications, extensions, and installations designed to meet the power demands of the new trains and the wider network.
Construction began on 25 March 2025, with completion expected in 2027.
David Mitchell, director of UK Power Networks Services, said:UK Power Networks Services is thrilled to support work that will enable the rollout of new trains on London Underground’s Piccadilly line, with the signing of our latest contract to upgrade sections of the London Underground High Voltage power network. We are proud to continue our longstanding partnership with London Underground and Transport for London. Being awarded this contract is testament to the hard work and expertise of our staff and our continued support for the London transport network.
UK Power Networks Services delivers a range of energy and infrastructure solutions, including power distribution, design and build, operations and maintenance, and asset management. Its client base includes organisations such as Network Rail, the Ministry of Defence, and various commercial and transport sector partners.
The company has an established working relationship with Transport for London (TfL) and previously secured a 40 million GBP contract in 2022, also in support of the Piccadilly line. Other past projects include the redevelopment of Liverpool Street station as part of the Crossrail programme, and substation upgrades across several Underground lines including the Metropolitan, Circle, Hammersmith & City, and District lines.
