Energy bills set to fall 7% now but could jump 18% by July as Ofgem greenlights £28bn grid upgrade

Context Energy bills for a typical household in Great Britain fell by 7% from April 1, bringing the annual cost to £1,641 until June. This reduction comes under the energy price cap, a quarterly limit set by regulator Ofgem on the maximum unit price for gas and electricity on standard variable tariffs. While this offers some immediate relief, the underlying costs of maintaining and upgrading the national energy infrastructure are also shifting.

Key Facts The recent 7% reduction means a typical household now pays £1,641 per year for energy from April to June. However, this period of lower costs may be brief. Energy consultancy Cornwall Insights forecasts that typical household energy bills could increase by £288, an 18% jump, to approximately £1,929 per year starting in July. This potential rise reflects ongoing shifts in wholesale energy markets and the costs associated with infrastructure improvements.

Regulator Ofgem recently approved a significant £28 billion investment to upgrade Britain's electricity and gas grids. This funding aims to strengthen energy supply, enhance resilience against volatile energy prices, and reduce dependence on gas. A portion of these upgrade costs will be reflected in consumer bills, contributing approximately £6 per month for a typical household from April 2026, adding £108 annually by 2031. This ensures the necessary infrastructure improvements proceed, even as immediate bill changes occur.

What It Means Consumers face a complex energy landscape, balancing immediate savings with potential future increases. The £28 billion grid investment seeks to improve the long-term reliability and efficiency of the energy network, aiming to provide more stable energy prices in the future. The government also plans to change electricity pricing by spring 2027, aiming to reduce household bills' vulnerability to gas price spikes and better leverage cheaper renewable energy sources. This shift indicates a broader strategy to secure Britain's energy future. Watch for Ofgem's announcement in late May to confirm the new energy price cap level for July, which will determine the immediate financial impact on households.