Standing charges are the fixed daily costs you pay simply to stay connected to the electricity network, regardless of how much power your business uses. Even on quiet days when everything is switched off, the meter continues to tick. Think of it as a rental fee for keeping your business plugged in. For years, standing charges were easy to overlook, just another forgettable line on the bill. But this is no longer the case.
If you’ve recently renewed your business energy contract and noticed higher standing charges than expected, then you’re not imagining it. From April 2026, these fixed costs are on the rise. In other words, even the most energy-conscious businesses are not immune. Here's what's behind the increase, what it means for your bills, and what you can do about it to stay in control of costs.
So Why Are Standing Charges Going Up?
From April 2026, TnUoS charges for business electricity sites are rising by around 60-64% compared to 2025. These charges exist to fund major upgrades to the UK’s national grid infrastructure in order to connect more renewable energy sources, like offshore wind farms, to the system. Around £80 billion is expected to be spent over the next five years, with the cost landing on the consumer. As a result, total business energy bills are set to increase by 5-15%. For large sites, that can translate into a six-figure increase annually. For smaller businesses, it means several hundred pounds extra per year, even if usage stays exactly the same. In a market where many businesses are struggling to manage tight margins, additional pressure is bad news.
Behind these rising costs sit two core network charges paid by suppliers to use the national grid: Transmission Network Use of System (TNUoS) and Distribution Use of System (DUoS). They're not usually shown clearly on your bills, but they form a significant portion of what you ultimately pay. TNUoS is the backbone that carries electricity across the country from power stations through high-voltage lines to local distribution networks. DUoS, meanwhile, covers the lower-voltage distribution networks such as the local cables and substations that deliver electricity to your door.
Will This Affect Me Even on a Fixed Contract?
It’s one of the most common misconceptions in business energy that a fixed contract means complete price certainty. A fixed-rate energy contract locks in your unit rate and standing charge at the point of signing, but it does shield you from everything. Beneath the surface, regulated costs like TNUoS and DUoS sit outside of a supplier's control. These charges are set by the network operators and can be passed through at the prevailing rate, meaning they can rise during the life of the contract. That’s why some businesses are caught off guard. On paper, nothing has changed, yet the bill still creeps up. The difference isn’t the energy price, but in the underlying network costs being applied to them.
If your contract is due for renewal in 2026, any new quote you receive will already factor into these higher network charges. For those mid-contract, the impact comes down to the fine print. Depending on how your agreement is structured, these costs may still be passed through as they change. In short, ‘fixed’ doesn't always mean immovable.
Does Location Make a Difference?
Yes, more than many realise. DUoS charges vary by region because each area of the UK has its own local network operator, each with its own infrastructure costs. That means a business in the North of England can face a very different set of network charges to an otherwise identical business in the South, even under the same contract terms. For example, areas such as Aberdeen in Scotland sit within higher transmission charging zones, making overall electricity costs significantly higher compared with other parts of the country. Alongside this, the meter type also matters. Businesses with half-hourly meters fall into different charge bands than smaller sites, and with the changes introduced in April 2026, that gap is becoming more pronounced.
What Can Your Business Actually Do About It?
While you can't opt out of network charges as they're a regulated part of every electricity bill, that doesn't mean you're powerless. There are still smart, practical ways to soften the impact. Start with reviewing energy use. DUoS charges are highest during peak demand periods; it’s typically weekday evenings when the grid is under the most strain. If you can shift energy-intensive activities, like running machinery, charging vehicles, or heating, into off-peak hours, you can reduce a significant portion of the costs linked to time-based charges. Pair that with efficiency measures like LED upgrades, smarter heating controls, and energy audits, and you will start to see overall energy consumption go down.
Then there’s the longer game, generating your own power. Solar panels, particularly when paired with battery storage, give businesses far more control over when they draw from the grid. By reducing reliance during those expensive peak windows, businesses can gradually offset some of the pressure from rising network costs.
It’s also worth taking a closer look at your supply capacity. Many businesses are set up with more headroom than they actually need and pay for it whether they use it or not. It’s an easy detail to overlook, but a review can often unlock meaningful savings. Thereby, don’t treat your next renewal as a routine. With the April 2026 changes reshaping how these costs are structured, timing matters more than ever. Speaking to an energy broker ahead of renewal is important and allows you to lock in before further charges increase.
The Bottom Line
Rising standing charges in 2026 are not a supplier decision, they're a structural shift in how the UK's electricity network is funded. Every business will feel it to some degree. The difference comes in how they respond. The businesses that come out ahead will be the ones that understand what's driving the increase and take the steps early to reduce their exposure. If you're unsure how the April 2026 changes will affect your specific contract or site, it’s worth getting clarity before your next renewal rolls around. A conversation with an energy consultant is the simplest way to make sure you're not overpaying later.
How can Purely help?
For more information. Contact us on 0161 521 3400 or email us at info@purelyenergy.co.uk
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Written By Elizabeth Heverin and Edited by Faith Labong at Purely Energy.
