When a washing machine starts leaking or a fridge begins to hum ominously, most of us want the replacement sorted quickly. It is easy to be swayed by a bright price tag or a slick finish, but the small colourful sticker on the front of every new appliance in a UK shop is the single most useful piece of information you have. It tells you how much electricity and water a machine is likely to use, which translates almost directly into what it will cost you to run each year.
For anyone trying to live a little more gently — wasting less, buying better, keeping things longer — the label is where sustainability and household budget meet. Read it properly and you can choose an appliance that suits your actual habits rather than the marketing department's idea of them.
Since March 2021, most new appliances sold in the UK carry a simplified A to G rating. The old A+, A++ and A+++ grades were retired because too many products had crowded into the top bands, leaving shoppers with no real way to tell them apart. The new scale is deliberately tougher: genuine A-rated appliances are rare, and that is the point. If a machine that would once have been labelled A+++ now shows a C or D, the goalposts have moved, not the appliance.
A QR code in the top corner of the label takes you to a public product database, where you can see a fuller technical sheet — useful for comparing two models side by side before you commit.
The figures differ by appliance type, and knowing which one matters to you is half the battle.
To make the label genuinely useful, multiply the annual or per-100-cycle kWh figure by the unit rate on your electricity tariff. You will find this on your bill in pence per kWh. The difference between a D-rated and an A-rated fridge might look small on the sticker, but over a fifteen-year lifespan it can add up to a meaningful sum — often more than the price gap between the two models.
Do the same for water if you are on a meter. Water carries an energy cost too, because heating it in a washing machine or dishwasher is where most of the electricity goes.
Sizing is the most commonly overlooked factor. A large drum run twice a week is usually more efficient overall than a small one run five times, but only if you can fill it. For a one- or two-person household, a compact machine with a good rating may serve you better than a cavernous one that never runs full.
Think about where the appliance will live, too. Fridges installed in an unheated garage or outbuilding need a climate class that suits colder temperatures, or they will work harder than the label promises. If your kitchen opens into a living space, the noise figure in decibels is worth as much attention as the energy grade — a quieter machine is one you will not be tempted to replace early.
The greenest appliance is often the one you already own. Extending the life of a machine with a repair keeps its embodied carbon — all the energy and materials that went into making it — out of the atmosphere, and keeps another unit out of the waste stream. Before replacing, it is worth checking whether spare parts and a local repairer are available; repairability requirements now mean many manufacturers must supply parts for several years.
When you do buy, look beyond the kitchen. Garden appliances carry labels too, and choices there can help wildlife as well as your bills. A pond pump on a timer, solar-powered path lights instead of a permanently glowing array, and warm-white, downward-facing outdoor lighting will all cut energy use and reduce light pollution — which matters enormously for moths, bats and hedgehogs navigating the dark.
Choosing well once, keeping things going, and letting the garden stay a little darker at night: small decisions, but they add up to a home that is cheaper to run and kinder to everything living around it.