Switching energy supplier is supposed to save money — yet every year, thousands of UK households end up £500 or more worse off after switching.
The problem isn't switching itself. It's how people switch. Energy pricing in 2026 is complex, regional, and highly dependent on usage.
Small mistakes — like focusing on the wrong number or ignoring contract terms — can lock households into expensive tariffs for years.
This is the single most expensive mistake people make. Energy prices in the UK are postcode-based.
👉 Any comparison that doesn't ask for your postcode is inaccurate.
Many households focus only on unit rates — and completely ignore standing charges.
In 2026, standing charges can account for:
A tariff with a low unit rate but high standing charge can be far more expensive overall.
Variable tariffs feel safe because they have no contract or exit fees. But in reality, they are usually one of the most expensive options.
Variable tariffs:
Many fixed tariffs in 2026 are priced below the cap.
The energy price cap is not a cheap deal — it's a consumer protection ceiling.
It:
Households that stay on capped variable tariffs often miss cheaper fixed deals available in their area.
Using incorrect usage figures can completely distort comparisons.
Common issues:
This leads to choosing tariffs with unsuitable pricing structures and overpaying on unit rates or standing charges.
Some tariffs look cheap upfront but include:
If prices fall or better deals appear, you're trapped in an expensive contract.
Dual fuel tariffs offer convenience — not guaranteed savings.
In some regions:
Blindly choosing dual fuel can result in higher combined costs.
This myth still costs households money.
In 2026:
Avoiding green tariffs can mean missing the cheapest options available.
Households with special meters must compare specialist tariffs:
Using standard comparisons often results in higher unit rates and missed savings.
Energy markets change constantly. Households that switch once and forget often drift onto expensive default rates.
Common issues:
For many households, combining just 2–3 of these mistakes can easily result in hundreds of pounds in unnecessary costs over a year or two.
The savings are there — but only if you compare properly and avoid these common mistakes.
Energy prices vary regionally. Accurate comparisons require your specific location.
Accurate kWh figures ensure proper cost calculations and tariff matching.
Look at the complete yearly cost, not just unit rates or standing charges alone.
Balance both based on your usage patterns for optimal savings.
Many fixed deals offer better value than capped variable tariffs.
Understand the terms before committing to avoid being locked into poor deals.
Set reminders to review your energy deal before it rolls over to expensive rates.
Trust tools that factor in all variables for complete, transparent comparisons.
UtilityKing does all of this automatically, helping you switch safely and save money.
No guesswork. No expensive mistakes. Just accurate energy switching.
Energy switching can save hundreds — but only if done correctly. Avoid the common mistakes that cost households £500+ each year.
Contact Us