What Does an A Energy Rating Mean for Appliances?
In this guide
How the energy rating scale works
Energy efficiency labels have appeared on UK appliances since 1995, when the EU introduced a straightforward A-to-G scale. A meant highly efficient; G meant the opposite. Over the following two decades, manufacturers improved their products dramatically, and the top of the scale became overcrowded. Ratings like A+, A++, and A+++ were added to distinguish between models, but the result was a label that most shoppers found genuinely confusing.
From 1 March 2021, the UK adopted a revised system that reset the scale back to A through G, with nothing beyond A at the top. The deliberate intent was to leave the A grade almost empty at launch, creating room for future improvements and giving manufacturers a meaningful target. The result is that almost no appliance sold today achieves an A, and that is by design.
The familiar green-to-red colour spectrum is unchanged from the old label, which helps when scanning products in store. What has changed fundamentally is where appliances actually sit on it.
Old A++ labels vs. the new system — what actually changed?
If you have an appliance at home displaying an A++ or A+++ sticker, it has not become less efficient. The appliance performs exactly as it did before. The only thing that changed is the grading framework used to assess it.
When the new scale launched, existing models were re-tested using stricter measurement conditions and mapped onto updated letter grades. A washing machine that earned A+++ on the old scale might appear as C or D under the new one. That sounds like a demotion, but the machine itself is unchanged. It is being assessed against a recalibrated standard designed to push efficiency further.
| Old rating (pre-2021) | Approximate new equivalent | Notes |
|---|---|---|
| Varies by product category; fridge freezers typically land at D | ||
| Still efficient in absolute terms; recalibrated, not degraded | ||
| Older mid-range; meaningful efficiency gap vs. new B–C models | ||
| Many products previously labelled A now sit at F under new testing |
What else the energy label shows you
The letter grade is the first thing your eye lands on, but it is not the only useful number on the label. The 2021 redesign added several features absent from older versions.
Annual energy consumption (kWh)
This is the figure that matters most for your bills. It shows the estimated electricity the appliance will use in a year, based on standardised testing conditions. Multiply it by your unit rate — around 24.5p per kWh at the April 2026 price cap — to get an approximate annual running cost. Two appliances can carry the same letter grade and have meaningfully different kWh figures, so always compare this number directly when choosing between models.
QR code
Every new label includes a QR code linking to the EPREL product database, where full test data is registered for every appliance sold in the UK. Scanning it takes seconds and gives you far more detail than the label itself: useful when comparing two similar models closely or verifying claimed performance.
Product-specific pictograms
Beyond the energy rating, each appliance category includes relevant figures in pictogram format. Dishwashers show water consumption per cycle and noise rating. Washing machines include programme duration, spin efficiency, and noise level. Refrigeration appliances show internal capacity in litres. The label covers most of the practical comparisons buyers care about at point of sale.
How much can a higher energy rating actually save?
The honest answer is that it depends on the appliance, how often you use it, and how long you keep it. Savings from rating differences are most significant for appliances that run continuously or are used daily over many years.
| Appliance | A-rated annual cost (GB) | G-rated annual cost (GB) | Annual difference | Lifetime estimate |
|---|---|---|---|---|
| Dishwasher (12-place) | £40 | £75 | ~£35 saved | ~£350 over 10 yrs |
| Fridge freezer | A-band | E-band | Variable | ~£380 over 17 yrs (vs E-rated) |
| Washing machine | ~£25 (most efficient tested) | ~£112 (least efficient tested) | Up to £87/yr | ~£870 over 10 yrs |
Fridge freezers are where efficiency differences compound most noticeably. They run every hour of every day and the average unit lasts around 17 years, so choosing a more efficient model at purchase is one of the most impactful decisions you can make for long-term running costs — even if the upfront price is slightly higher.
For appliances used in shorter bursts — ovens, hobs, microwaves — the rating difference has less bearing on your annual bill, though the kWh figure is still worth checking when comparing models side by side.
Energy ratings by appliance type
Appliances covered by the 2021 label change
The first wave of the rescaled A–G labels applied to washing machines, washer-dryers, dishwashers, refrigeration appliances (including fridge freezers, fridges, freezers, and wine coolers), televisions, and lighting. All of these now carry the new label with a QR code when sold in the UK.
Appliances still on the old scale
Some categories have not yet transitioned. Ovens and tumble dryers may still carry the previous A+ or A++ label format in some cases. An A-rated oven under the old system is still a genuinely efficient model in that category; the label just predates the 2021 recalibration.
Appliances without an energy label
Microwaves are not covered by the energy label scheme. For those, the best proxy is the power rating in watts — a lower wattage at equivalent cooking performance typically means lower running costs, though actual usage time tends to be the bigger variable in practice.
For a broader view of what each appliance category actually costs to power, the guide to kitchen appliance electricity use breaks down consumption by appliance type with running cost estimates.
How to use energy ratings when buying
Do not be put off by a B or C on a new label. Under the 2021 scale, B is the best rating widely available and represents genuinely excellent efficiency. A-rated appliances are intentionally rare — their near-absence is a feature of the new system, not a sign that manufacturers have regressed.
Compare the kWh figure, not just the letter. Two C-rated washing machines can carry quite different annual consumption figures depending on capacity and design. The kWh number is the honest comparison that maps directly to running costs.
Scan the QR code. It takes ten seconds and opens the full EPREL entry for the model, including detailed test data well beyond what the label displays. Worth doing when choosing between two closely priced alternatives.
Factor in the expected lifespan. A fridge freezer will likely run for 15 to 17 years; a washing machine for 10 to 12. For appliances with long service lives, a slightly higher purchase price for a more efficient model often pays back clearly. The Energy Saving Trust estimates choosing an A-rated over an E-rated fridge freezer saves around £380 over its lifetime in Great Britain.
Account for how you will actually use it. Energy labels are tested under standardised conditions — dishwashers on an eco cycle, washing machines at a set temperature. Running appliances on quick programmes rather than eco modes, or washing at 60°C rather than 40°C, will push real-world costs above what the label suggests regardless of the rating.
Understanding how long appliances typically last is also useful context when calculating whether an efficiency upgrade pays off. The guide to kitchen appliance lifespans covers expected service lives across the main categories.
Frequently asked questions
Key takeaways
- An A energy rating is the highest grade on the UK’s current A–G scale, introduced in March 2021 to replace the confusing A+++ system.
- The A grade is intentionally rare. A B or C rating on a new appliance represents excellent real-world efficiency.
- Old A++ and A+++ appliances have not become less efficient — only the scale has been recalibrated.
- The annual kWh figure is more useful than the letter alone. Multiply by your unit rate (around 24–25p) to estimate yearly running costs.
- Efficiency savings are most significant for fridge freezers and washing machines, which run frequently over long lifespans.
- Scan the QR code on any new label to access full product test data via the EPREL database.
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