Britain's energy price cap to rise 13% in July, Cornwall Insight says - Finance news and analysis from Global Banking & Finance Review
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Britain's energy price cap to rise 13% in July, Cornwall Insight says

Published by Global Banking & Finance Review

Posted on May 19, 2026

2 min read

· Last updated: May 19, 2026

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Britain's Energy Price Cap to Rise 13% in July, Warns Cornwall Insight

Energy Price Cap Increase and Market Drivers

Forecasted Rise in Energy Bills

LONDON, May 19 (Reuters) - Britain's domestic energy price cap is forecast to rise by around 13% ​in July from current levels, analysts at Cornwall Insight said ‌on Tuesday,

Impact on Household Bills

• Energy bills are forecast to rise by 209 pounds ($280) to 1,850 pounds a year for a typical dual-fuel household from July. The new cap would represent an increase of 13% on the current 1,641 pounds annual bill.

Factors Behind the Increase

Wholesale Price Surges

• The main driver for the increase is higher wholesale prices, which climbed in February and March after U.S. and Israeli missile strikes on Iran and subsequent Iranian attacks that damaged Gulf energy infrastructure and triggered the closure of the Strait of Hormuz, through which about 20% of the world's oil and liquefied natural gas usually passes.

Market Stability and Ongoing Risks

• Although a temporary ceasefire has brought some calm to markets, wholesale prices have remained elevated.

Role of Wholesale Prices in Price Cap

• Wholesale energy prices are the largest single factor ​contributing to ​British energy ⁠regulator Ofgem's domestic price cap, which is set on a quarterly ​basis using a formula that also ​reflects ⁠suppliers' network costs and environmental and social levies.

Future Outlook and Analyst Commentary

Concerns for October and Beyond

• "The bigger concern is October when demand picks up again and current forecasts point to a similar cap level as July," the Cornwall Insight analysts said.

Potential Impact of Geopolitical Events

• "While the October cap will depend on how the Middle East conflict unfolds, even if the conflict were to end tomorrow, the physical damage to infrastructure and lingering effect of disrupted supply means a fall back to April’s price cap levels in the autumn looks unlikely," they added.

($1 = 0.746 pounds)

(Reporting by Nina Chestney. Editing by Mark Potter)

Key Takeaways

  • July’s cap rise reflects continued high wholesale energy prices amid Middle East conflict; summer demand may cushion impact temporarily (moneyweek.com)
  • Recent forecasts indicate a central estimate of £1,929 (≈18% rise), with realistic range between £1,640–£2,100, dependent on markets (kaeltripton.com)
  • Ofgem sets the quarterly cap based heavily on wholesale plus network and policy costs; October cap may remain elevated even if conflict eases (ofgem.gov.uk)

References

Frequently Asked Questions

How much will the UK energy price cap increase in July?
The UK energy price cap is forecast to rise by around 13% in July, increasing typical dual-fuel household bills by £209 to £1,850 a year.
What is causing the rise in the UK energy price cap?
The main driver is higher wholesale energy prices, which surged following Middle East conflicts and infrastructure damage affecting energy supply routes.
How does Ofgem set the UK energy price cap?
Ofgem sets the domestic price cap quarterly, using a formula based on wholesale prices, supplier network costs, and environmental and social levies.
Could the UK energy price cap fall back to previous levels soon?
A significant drop in the price cap is unlikely in the near future due to ongoing market impacts and physical damage to energy infrastructure.
What might happen to energy prices in October?
Forecasters predict that the October price cap will be similar to July’s level, especially if demand rises and Middle East tensions persist.

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