Energy bills are set to rise – but not just due to the Iran war
Energy bills are set to rise – but not just due to the Iran war
Global energy markets have experienced renewed turbulence following the conflict in Iran, prompting concerns that the UK could face severe financial strain. While much of the discussion has centered on reducing energy expenses through two primary strategies, a critical factor driving bill increases remains underexplored: the cost of maintaining and upgrading the nation’s energy infrastructure.
Energy bills encompass more than just the cost of the electricity and gas consumed. They also reflect expenses tied to the expansion and modernization of Britain’s energy network. The surge in renewable energy sources, such as wind and solar, has necessitated major upgrades to the national grid, particularly to transport power generated from offshore wind farms in northern Scotland.
“Even if gas prices stay steady, the non-commodity elements of the household electricity bill are likely to go up,” says Rachel Fletcher, director of economics at Octopus Energy.
These upgrades are projected to cost around £70 billion over the next five years. Meanwhile, the current grid capacity limitations have led to instances where wind farms are compensated to shut down turbines, preventing overloads. As a result, these network expenses are expected to contribute significantly to rising household bills.
Last year, Ofgem highlighted that grid investments alone could add approximately £30 to the average consumer’s bill by 2031. Independent forecasts, however, suggest a more substantial increase. Ben James, an energy analyst, predicts the average annual electricity bill will reach £1,045 by 2030—a rise of about £80. According to his calculations, network costs could add up to £135 to annual bills by that time.
Another projection from Octopus Energy estimates a potential 15% increase in electricity costs by 2030, with network and other expenses pushing bills higher by £260 to £300. The current Gulf instability is also exacerbating inflationary pressures, making the upper forecast even more pronounced.
Why Network Costs Are Rising
Analysts attribute the steep rise in network costs to years of underinvestment. A recent study revealed that energy network operators have annually neglected to invest £490 million. This underfunding was partly due to a 2009 Ofgem decision allowing new wind farms to connect to the grid before infrastructure expansions were fully realized.
“This created a precedent for avoiding investment,” says Adam Bell, director of policy at Stonehaven consultancy.
Despite these challenges, the Labour government is advancing its goal to achieve 95% clean power by 2030, asserting it will lower overall costs. The Liberal Democrats and Green Party align with this push, with the former proposing reforms to renewable project funding and the latter advocating higher taxes on fossil fuel companies.
Meanwhile, the Conservatives and Reform UK have criticized renewable energy initiatives, emphasizing cost-cutting and fossil fuels. Their differing approaches include supporting oil and gas projects to bolster government revenue. However, with a backlog of wind farms awaiting connections, many of these costs are already embedded in future forecasts.
Susie Elks, a senior policy advisor, notes that “inflation means that investing in our energy networks will cost more, whatever energy we use.” As the Economist recently argued, delaying the 2030 clean power target could provide time to invest in cheaper onshore wind and reshape the electricity market. The Tony Blair Institute has also raised doubts, suggesting proximity of supply to demand could reduce expensive grid buildout.
