Your energy bill rose 13% in July because of a waterway most people could not find on a map. Here is the chain, link by link, and no politics.
What a Shipping Lane Has to Do With Your Electricity Bill
Your energy bill went up by 13 per cent on 1 July. You will have noticed that. What you may not have connected is that the reason involves a strip of water between the Persian Gulf and the Gulf of Oman that most of us could not find on a map at gunpoint.
This is about that chain, link by link. It takes no position on the politics, of which there is an abundance. It is only about how a disruption several thousand miles away turns into a number on a bill in a British kitchen.
Link One: The Waterway
The Strait of Hormuz is one of the most important shipping routes on earth, because a very large share of globally traded oil and liquefied natural gas passes through it. When it works, nobody mentions it. It is the plumbing of the world economy, and like all plumbing, it only becomes a topic of conversation at the worst possible moment.
Conflict in the Middle East disrupted routes through the Strait, and markets are now watching for signs of progress towards a deal to reopen it. That watching is itself moving prices. The prospect has buoyed equities, and oil has slipped back below 80 dollars a barrel.
Link Two: The Wholesale Price
Energy suppliers do not produce gas. They buy it in bulk, in advance, on wholesale markets, which means they are essentially placing a very large order months before anyone switches a kettle on.
Note the timing quirk, because it explains most of the public confusion on this subject. You are paying today for what wholesale markets were doing months ago. Oil falling below 80 dollars this morning does not put anything back in your account this week. The pipeline is long, and it only ever seems to run quickly in the direction of increases.
Link Three: The Cap
Ofgem sets a maximum on the amount suppliers can charge per unit of energy and per day for standing charges on default tariffs, which is reviewed every three months.
On 27 May, Ofgem announced a 13 per cent increase covering 1 July to 30 September, attributing it directly to higher wholesale gas prices caused by the conflict in the Middle East. For a typical household paying by direct debit, electricity is now capped at 26.11 pence per kilowatt hour, with a daily standing charge of 57.19 pence.
One piece of perspective, offered without much cheer. Prices remain around 54 per cent below the peak of the 2022 crisis, when the government stepped in to cap bills at £2,500. This is bad. It has been spectacularly worse.
The Detail That Catches Everyone Out
The cap does not cap your bill. It caps the rate.
Ofgem publishes a headline figure for a typical household, currently £1,663 on updated usage assumptions, and the entire country reads that as a ceiling on what anyone will pay. It is nothing of the sort. It is unit rates multiplied by an assumption about how much energy a household uses. Use more than the assumption, and you will pay more than the headline, regardless of what the news said, how cross you are, or how typical you feel.
It is rather like reading the average rainfall for a region and concluding you will not personally get wet.
What Happens Next
The next cap level, covering 1 October to 31 December, will be published by 26 August. That is the one that actually hurts, because it covers the start of winter, when consumption climbs, and the same unit rate does considerably more damage to the same house. Ofgem posts it on its energy price cap page, usually while everyone is thinking about something else.
If you are on a standard variable tariff, put 26 August in the calendar. Fixed tariffs are not affected by the cap, which is rather the point of them, and whether fixing makes sense depends entirely on where fixed prices sit against where the cap appears to be heading.
The Broader Point
I find this chain useful for a reason that has almost nothing to do with energy.
There is a stubborn belief that household finances are essentially a test of personal discipline. That the budget is entirely yours to control, and anyone struggling organised themselves poorly. Then a shipping route is disrupted, and every household in the country pays more, whether they budget on a spreadsheet or on the back of a receipt.
That is not an argument for giving up on control. It is an argument for separating what you control from what you merely absorb, because the two require completely different responses and confusing them is how people end up apologising for arithmetic that was never theirs: 10 Changes That Actually Move the Needle.
The Jacqueline Brand — knowledge builds confidence, confidence builds wealth. This is editorial commentary for inspiration, not financial or professional advice. Always do your own research. The Collection
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