Energy Bills as Political Risk: Unpacking the April-June 2026 Price Cap into the Drivers that Shape Net Zero Consent

Abstract:

In February 2026, Ofgem announced a price cap of £1,641 per year for April to June for a typical dual-fuel direct-debit household; this represents a £117 (7%) reduction from the previous quarter (Resolution Foundation, 2026; Ofgem, 2026c). Why? Government policy costs, such as renewables and efficiency levies, are being removed from bills. At the same time other underlying cost components such as network charges (covering grid maintenance and expansion) have increased, and wholesale energy costs have only modestly declined. Meanwhile, network charges have increased, while wholesale energy costs have only modestly declined (Ofgem, 2026a; Wood, 2026). Voters see energy bill changes through each of these components — network charges, policy levies and wholesale costs. An increase in network charges may spark concern over grid upgrade costs, whilst a reduction in levies can temporarily boost support for Net Zero policies. The price cap’s composition therefore shapes public acceptance of green energy policy.

Cap Breakdown:

From January-March to April-June 2026, wholesale costs fell from £690 to £652, saving £38, whilst network costs rose from £397 to £463, an increase of £66, due to new spending on the grid (Ofgem, 2026b). At the same time, the government cut policy levies by £130, from £236 to £106, other costs, such as supplier costs and profit, changed only slightly (Ofgem, 2026b).

There are three key points: network charges now account for about 30% of the bill, policy costs are much smaller (about 7%), and wholesale costs remain the largest (42%) (Ofgem, 2026b). So, while cutting policy costs may lower bills, rising network charges offset this, making the balance between these costs central to how consumers and politicians react to energy prices.

Political Economy of Cost Components:

For policymakers, this split is important, as “higher networks” (rising network charges linked to grid investment) and “higher bills” (overall consumer energy costs) have historically meant different things. For example, network cost increases (i.e. higher network charges funding grid upgrades) often gain acceptance among utilities and construction investors but can alarm consumers if billed as delays or project extensions, in contrast, for consumers the most paramount concern remains affordability (Ofgem, 2025a). As Ofgem director Tim Jarvis stated, “the main driver of today’s reduction is the change to policy costs announced by the Chancellor” (Twidale, 2026). In practice, the removal of £150 in levy costs, as outlined in the Autumn 2025 Budget, outweighs the £66 increase in network charges and the £38 reduction in wholesale costs, resulting in a net £117 decrease (Ofgem, 2026c; Gov.uk, 2025a).

However, the balance is shifting, with Reuters highlighting that levies funding government schemes for a £24 billion grid upgrade are becoming visible on consumer bills, ultimately, one-time levy reductions can ease short-term concerns, they cannot offset the persistent increase from grid investment costs (Twidale, 2026). Politically, this suggests public consent for Net Zero cannot be maintained by reducing bills alone; ongoing infrastructure investments will increasingly affect what consumers pay, connecting cost changes directly to policy acceptance (Ofgem, 2025a).

This situation also introduces a volatility risk: if global gas prices rise sharply, increasing wholesale costs, or if Ofgem imposes additional network charges as anticipated in RIIO-4 planning, the next cap revision for July to September 2026 would need to absorb these higher costs or identify alternative reductions. In contrast, though, any changes to environmental levies, such as adjustments to ECO or ECO4 costs, have an immediate and concentrated effect on consumer bills. To maintain public consent for the energy transition, policymakers should implement smoothing mechanisms that spread network investment costs over longer periods, preventing short-term price spikes from undermining public support for net zero.

Key Indicators to Watch:

What matters now is how the next round of price cap movements is driven, rather than the headline change itself. The next cap review (July 2026) is due to be announced in late May, and the composition of that adjustment will be critical. A wholesale-driven increase would likely be more volatile and potentially catch markets off guard. By contrast, continued reductions in policy costs would suggest a more controlled downward trajectory (Warren, 2025).

Alongside this, wholesale price movements, particularly UK gas futures and forward curves, should remain the most immediate variable, as any sustained upward shift, whether driven by geopolitical developments or supply constraints, would feed directly into the largest component of the cap, placing upward pressure on household bills (Ofgem, n.d.; Warren, 2025).

Policy and levy changes also require close attention, as they shape the political sustainability of price movements. Adjustments to schemes such as ECO or the Warm Home Discount will have direct, visible effects on bills and, therefore, on public acceptance of the wider energy transition (Gov.uk, 2025a; Ofgem, 2025b).

Finally, signals around network price controls are becoming increasingly important, including Ofgem’s longer-term framework, including RIIO-3, and reforms under REMA that point to rising grid investment requirements (Ofgem, 2025c; Gov.uk, 2025b). The July 2025 REMA statement already signalled additional spending, and any updates to funding schedules or cost recovery mechanisms could further elevate network-related charges within the cap (Ofgem, 2025d).

Conclusion:

The 7% reduction in the price cap from April 2026 reflects two main trends: firstly, government measures (such as shifting levies into taxes) have increased public approval by temporarily lowering bills and secondly, that underlying grid costs continue to rise. So, while bills may appear lower in the short term, there remains vontinuing evolving political risk and as such, should expect future electricity and gas projects to operate amid volatile commodity prices and increasing regulatory burdens from network charges. Without smoothing mechanisms, rising network costs risk undermining long-term political support for the energy transition.

Bibliography

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