Engineering and construction company J. Murphy & Sons has won a £24m contract from National Grid to design and build a new electricity substation in London.

The new 132,000 volt, 20-bay gas insulated switchgear substation in Barking will be next to an existing National Grid site and it will reinforce and add resilience to the local network.

The project will require a number of stages including the temporary diversions and protections to the existing cable assets to accommodate the construction works; construction of the substation building; installation and commissioning; transfer of circuits onto the new switchgear; and the laying of new cable connections to traction transformers on an alternative site.

The substation is expected to be operational by early 2023, when it will form a key part of the local electricity infrastructure which will be integral to the regeneration to the Barking and Thames river areas in future.

Murphy chief executive John Murphy said “We’re delighted to play our part in securing energy supplies in London for years to come. Since adding to our power engineering capability last year, we have grown our expertise and can now offer clients like National Grid even more value through our unique Murphy approach. Using our own people, plant and better engineered solutions, we’re pleased that we can play a vital role in helping local economies by delivering world class infrastructure.”