Why is my electric bill so high? The eight causes, ranked

The bill that arrives shouting is usually two stories tangled into one: the price of electricity rose, and the house used a little more of it. National averages climbed steeply through 2025-26 in the US and UK alike - average US residential rates are up roughly a quarter since 2022, and the UK's capped unit rate stepped up sharply in July 2026 - so some of your increase is arithmetic you cannot control. The rest is findable. General information; your own bill's unit rate is the only number that matters for your maths.

Step one: separate price from usage

Take the bill's total and divide by its kWh figure. If your rate per kWh jumped, the story is mostly the market - and the fixes are tariff-shaped (below). If the rate barely moved but the kWh climbed, the house changed, and the diagnosis starts: new appliance, new habit, new leak of energy somewhere.

The usual suspects, roughly in order

1. Heating and cooling - the biggest single user in most homes; every degree of extra ambition in winter or extra cool in summer prints money on the bill (the setback schedule is the highest-value habit in the house). 2. Water heating - tanks age, sediments build, and a tank working overtime shows up monthly (the water heater guide). 3. The old second fridge - a 1990s garage freezer can draw two to three times what a modern efficient one does, every hour of every day (the dedicated maths). 4. Always-on small loads - consoles, set-top boxes, old routers, chargers, the amp on standby: individually trivial, collectively a visible base-load line (measured with a meter here). 5. Drying laundry - a 3,000 W dryer an hour a day is one of the largest single lines in an all-electric house. 6. Lighting - only if halogens remain. 7. A failing appliance - a struggling fridge compressor or a heating element on its way out runs long and hard. 8. Seasonality - summer AC and winter heating make the "same usage" bills swing hugely; compare kWh to the same month last year, not to last month.

The meter test that finds your base load

Everything off - lights, appliances at the wall, heating off - then read the meter. A modern home's acceptable dormant draw is small: if the meter keeps visibly ticking with the house "off", something is running that should not be, and walking the house switching circuits off at the consumer unit finds it in twenty minutes. That base-load number is also the cleanest way to see whether the standby cleanup is worth an evening.

If it is the price, not the house

Rate-driven bills respond to tariff strategy rather than appliance discipline: check whether a time-of-use plan fits your routine (how off-peak tariffs work), whether your provider's cheaper fixed or online tariffs are available to you, and whether the big structural levers - insulation, draught-proofing - have been pulled, because they cut usage at any price. And for the appliance-level arithmetic, the electricity cost calculator prices any appliance at your own rate in your own currency.