In a 29 September 2026 announcement, the UK government said it will create Great British Grid, a publicly owned body inside Great British Energy, to help speed up power connections, strengthen energy security and bring down costs over time. For Eco Current readers, the significance is simple: Britain cannot run a cleaner, more electrified economy on a grid built for yesterday’s demand. New wind, solar, storage and industrial projects mean little if they cannot get connected.

The government’s case is that the electricity network now needs to expand and modernise at a pace not seen before. Demand is rising from households, businesses and industry, while the shift away from fossil fuels means more power will need to move across the country and into local networks. Ministers say private investment will remain central, but that the scale of the build-out also needs public capital and a single body focused on delivery. That is where Great British Grid is meant to sit: not as a replacement for the market, but as a public partner able to help get priority infrastructure moving.

According to the government, Great British Grid will combine public and private investment to support critical electricity network projects and work alongside existing network operators. Placing it within Great British Energy also gives ministers a cleaner line between generation and the wires needed to carry that power. That matters because the energy transition is not only about building more clean electricity. It is also about substations, pylons, cables and connection points that can move power reliably to homes, hospitals, factories and small businesses.

The announcement lands alongside wider work with the National Energy System Operator and Ofgem to overhaul the grid connections system. The government says those reforms have already removed more than 300 GW of speculative capacity from the queue, a sign of how clogged the process had become. For serious projects, that queue reform could prove just as important as new funding. A shorter, more credible line for connection should make it easier for viable renewables, storage sites and industrial users to plan construction with more confidence.

Ministers also want to expand self-build connections, allowing developers and businesses to build their own grid links where appropriate rather than waiting for a network company to do every stage. The aim is to cut delays, lower connection costs and reduce the stop-start pattern that has frustrated both investors and energy users. The government points to Ireland, where similar changes reduced connection times by up to 11 months. That is the kind of practical reform that can matter quickly on the ground, especially for manufacturers, commercial sites and clean energy projects trying to meet tight build schedules.

A second reform will speed up competitive tendering for transmission projects, opening more schemes to a wider group of potential builders, including Great British Grid itself. In theory, more competition should improve delivery standards and give consumers better value, while also spreading risk across more organisations. The harder part will be turning procurement reform into faster construction. Britain still needs planning certainty, skilled workers and steady supply chains if it wants new lines and substations to arrive on time.

The government has been careful to say that Great British Grid will complement rather than replace the institutions already running the system. Ofgem remains the independent regulator, the National Energy System Operator keeps its planning and operational role, and existing network operators keep their current responsibilities. Initial start-up costs will come from Great British Energy’s existing budgets, with longer-term funding to be considered in a future spending review. If ministers can match institutional reform with steady delivery, Great British Grid could help shift the grid from a clean power bottleneck to a public asset that supports lower bills, stronger energy security and faster decarbonisation.