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UK Washing Machine Energy Ratings Explained

When buying a new washing machine, the energy rating is one of the easiest ways to compare efficiency. However, the current A to G energy rating scale can look a little confusing if you're used to seeing ratings such as A+, A++ or A+++.

Here's what the washing machine energy label means and what you should look for when choosing your next appliance.

What do the washing machine energy ratings mean?

UK washing machines use an A to G energy efficiency scale, with A being the most efficient and G being the least efficient. The current scale replaced the older A+, A++ and A+++ ratings as part of the energy label changes introduced in 2021.

In simple terms:

  • A – Most energy efficient
  • B – Very efficient
  • C – Efficient
  • D – Average efficiency
  • E – Lower efficiency
  • F – Relatively inefficient
  • G – Least efficient

Don't be surprised if you see fewer washing machines at the very top of the scale. The introduction of the revised A–G system was designed to make room for increasingly efficient appliances in the future.

What information is on a washing machine energy label?

The energy rating is only one part of the label. When comparing washing machines, you'll also find information about:

Energy consumption: This is shown in kWh per 100 wash cycles. It gives you a much better indication of how much electricity a machine uses than the letter rating alone.

Capacity: The label shows the machine's rated capacity in kilograms, helping you compare energy use alongside drum size.

Water consumption: You'll see the water used per cycle, measured in litres.

Programme duration: The label shows how long the standard programme takes.

Noise level: The label also displays the machine's noise level in decibels (dB), including its noise class.

These figures are based on the machine's Eco 40-60 programme, so they provide a standardised way to compare different models.

Is an A-Rated washing machine always the cheapest to run?

Not necessarily.

The energy rating is a useful starting point, but it's worth looking at the kWh per 100 cycles figure when comparing machines.

For example, two washing machines might both have an A rating but have different energy consumption figures. The machine with the lower kWh figure will use less electricity under the standard test conditions.

It's also important to consider capacity. A larger washing machine may use more energy per cycle than a smaller one but could allow you to wash a larger load at once.

That's why it's best to compare energy rating, kWh consumption and capacity together rather than choosing an appliance based solely on the letter.

What energy rating should I look for?

If you're buying a new washing machine, look for the highest energy efficiency rating that fits your budget and requirements.

However, don't overlook the other information on the label. A machine with a good energy rating, suitable capacity and low energy consumption can be a better choice than simply buying the machine with the highest letter rating.

It's also worth thinking about how you wash. Running full loads rather than several smaller loads can help you make better use of the machine's capacity, while choosing an appropriate wash programme can affect how much energy and water each wash uses.

What should I look for when buying a washing machine?

For a quick comparison, check these five things:

  1. Energy rating: Look for a high A–G rating.
  2. kWh per 100 cycles: Lower figures indicate lower energy consumption under the standard test conditions.
  3. Drum capacity: Choose a size that suits the amount of laundry you regularly wash.
  4. Water consumption: Compare the litres used per cycle.
  5. Noise level: Particularly important if your washing machine is near living areas or bedrooms.

The UK Government requires energy labels to be displayed when applicable, including for online sales, so you should be able to find this information before buying.

The bottom line

A is currently the best energy efficiency rating and G is the least efficient. But the letter is only part of the story. When choosing a washing machine, compare the energy rating and kWh per 100 cycles alongside the drum capacity, water consumption and noise level. This gives you a clearer picture of how the appliance could perform in your home and helps you choose a machine that suits both your laundry needs and your energy priorities.

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