Average Electricity Bill for a 1-Bed Flat UK (2026 Guide)

Quick links:

• Understanding your electricity bill
• Average electricity usage for a 1-bedroom flat
• Why your electricity bill isn’t average
• How to Calculate Your Own Bill
• How your 1-bed flat compares
• Practical ways to reduce bills in a 1-bed flat
• Budgeting for one (or two)

A 1-bedroom flat can mean lower energy bills, ‘cause there’s generally less space to heat than bigger properties, but if you live alone or things are tight, it can still get expensive. There’s rent/mortgage, plus your utilities and other bills.

The average electricity bill for a 1-bedroom flat depends on your usage and tariff, but for budgeting purposes, here’s the average usage based on Ofgem’s stats for a variable tariff, alongside average costs from British Gas.

(Based on the April 2026 price cap rates and customers with typical usage, paying by Direct Debit)

There are quite a few variables affecting your 1-bedroom flat’s electricity bill, including the type of property, how you heat your home, your usage habits, and your tariff.

If your 1-bed flat is at the top of a block, for example, heat rises, so you’ll be warm, but you might need to use a fan or portable air-con unit more often in the summer months.

Some flats are electricity-only, which means even the central heating is powered by electricity. This is more expensive than the traditional gas boiler used by most of the UK, so that’ll impact your electricity bill, too.

Electricity is just one of the bills you’ll need to pay in your flat. You’ll also need to consider gas (if you have it), broadband, water, council tax, and TV licence. Skip the hassle of organising individual bills with a bill bundling service like One Utility Bill to simplify your finances and cover everything on one monthly bill.

Keep reading to learn more about the average electricity bill for a 1-bedroom flat, and how to budget for living alone or with a partner.

How is your electricity bill calculated? Let’s take a look at the two elements of your bill:

1. Price per kWh (kilowatt hour): How much you pay per unit of electricity
2. Standing charges: A fixed daily fee to cover admin, grid maintenance, customer service, etc.

If your bill also includes gas, you’ll pay per unit and a daily standing charge for that.

💡The Energy Price Cap

The Energy Price Cap is a limit placed on utility bills (gas and electricity) by the energy industry regulator, Ofgem.

The cap limits the price per unit and standing charges on a standard variable tariff. It changes every three months in line with the wholesale energy prices.

The price cap applies if you pay for your electricity by:

• Standard credit (payment made when you get your electricity and gas bill).
• Direct debit.
• Prepayment meter.
• Economy 7 (E7) meter

The cap only affects the price per unit of energy, not your total bill. The change is often communicated using the ‘average’ household bill for context, but your bill could be higher or lower than the headline figure, depending on your usage. So, if the energy you use isn’t covered by your monthly payment, you’re usually billed more at the end of your contract, or your monthly payment could go up mid-contract.

👀 Higher than average bill?

If your electricity bill for your 1-bedroom flat is above the ‘average’, it could be because:

• Higher energy usage: The more you use, the more you pay, so if you have an energy-hungry lifestyle, your bill will be higher.
• Tariff type: The Price Cap only applies to variable and prepayment tariffs. If you’re on a fixed-rate deal, your bills aren’t affected by the price cap.
• Property type: Most domestic energy is used for heating our homes, and the bigger your home, the more space you need to heat. If you live in a large apartment that just happens to have one bedroom, your energy bill will, of course, be more expensive than someone in a small 1-bed terrace flat.
• Number of inhabitants: A single person will generally use less electricity than two living in a 1-bedroom flat.

There is no set figure for a 1-bedroom flat. Instead, Ofgem splits the average electricity bill into three categories, which they define with examples of the kind of household with:

• low usage (a 1-bed flat or small house with 1–2 people)
• medium usage (a standard three-bed home)
• high usage (bigger homes or houses with more energy demand).

Typical usage for a 1-bed place falls under “low usage”:

• Annual: 1,800 kWh
• Monthly: ~150 kWh
• Daily: ~4.9 kWh

If you live alone, your annual usage will likely be closer to 1,500kWh; 1,800 kWh or higher is more accurate for a couple.

Here are some examples of appliances and their usage:

• A washing machine uses around 0.6–1 kWh per cycle, depending on the temperature and programme.
• A microwave uses around 0.8 kWh per hour, or roughly 0.13 kWh for a 10-minute reheat.
• A kettle uses about 0.1–0.15 kWh per boil, even though it only runs for a few minutes.

Ultimately, your lifestyle and your home's energy efficiency will determine how closely you match the ‘average’ figures. Living alone or with a partner is expensive, so keep an eye on daily habits, as small changes will make a big difference in keeping your bills and energy use down, for example:

• How you dry your clothes: A tumble dryer, electric airer and radiators all use different amounts of energy, and all use more than air drying outside.
• Taking a bath vs. a quick shower: more hot water, higher energy use (especially if your water is heated by electricity).
• Working or studying from home with your heating on will be pricier than if you’re out of the flat all day.
• Having lots of appliances, consoles, and smart devices plugged in all day.
• Using older appliances instead of newer, energy-efficient models.

Is your electricity bill for your 1-bedroom flat higher than average? There may be a few reasons for this.

Remember, the Energy Price Cap only caps the price you pay per unit of energy, not your actual bill. Your bill is still based on how much you use (unless you have an Unlimited Energy package)

Here’s why your bill might be above average:

🗓️ Tariffs

The Energy Price Cap applies to standard variable tariffs and prepayment meters. If you’re on a fixed-rate tariff, the cap doesn’t apply, ‘cause fixed prices aren’t affected by the price cap which changes every three months. This means you could be paying more or less than the energy price cap, but your bills are more predictable.

🛏️ Home size

The size of your flat will impact how much energy you use to heat it. A compact studio flat will obviously use less energy than a spacious 1-bed flat.

👉 Your usage habits

With most traditional energy tariffs, the rule is simple: the more electricity you use, the more you pay. If you work from home, use electric heaters, or stream a lot of TV, your bills will be higher than someone who’s out most of the time.

Your monthly direct debit may not change immediately if your usage increases, but your supplier might suggest an increase, or send a bill for overuse at the end of your contract.

Even if you’re home a lot, there are ways to cut your energy use and reduce costs. Check out our tips on keeping energy usage down and reducing your bills.

💭 Future price changes

The energy price cap is influenced by wholesale energy costs, which is why it’s reviewed every three months.

Avoid making major financial decisions based on predictions. It’s best to wait until new price cap figures are officially announced (usually a couple of weeks in advance) before planning your budget.

🏡 Where you live

Electricity prices vary across the UK. Areas such as North Wales and Merseyside tend to have higher-than-average electricity costs due to transport and infrastructure factors, while Southern Scotland generally has lower average electricity bills.

💳 Payment method

How you pay your electricity bill makes a difference. Monthly direct debit is usually the cheapest way to pay; It’s more efficient for suppliers and they pass those savings on to customers.

Paying by prepayment meter or when you get your bill is often more expensive.

💰 Additional costs

Alongside your energy usage and standing charge, your bill may also include extra costs such as taxes, levies, or supplier fees.

1. Check your usage

Log in to your supplier’s online account or look at your smart meter to see your latest kWh usage.

1. Check your rates

If your last bill covered a previous price-cap period, your unit rate or standing charge may have changed since then.

1. Do the maths

(Total kWh used×unit rate)+(number of days×standing charge)=your bill

On a standard energy tariff, your bill shows how much electricity you’ve used (in kWh) plus a daily standing charge.

Your monthly payment is usually an estimate. Your supplier estimates how much energy a 1-bed flat like yours will use over the year and then spreads that cost evenly over your contract.

For example:
If your supplier estimates you’ll use £720 of electricity over 12 months, you’d pay £60 per month by direct debit.

If you have a smart meter, you can track your energy use in real time. It’ll be easier to spot your usage creeping up, whether through new appliances or a change in habits.

Some suppliers offer the ability to keep an eye on your usage in their app, so you can check your usage and account status at any time.

Even if you pay monthly, bills aren’t always worked out month-by-month. Some suppliers calculate costs quarterly or annually, so your calculations may not align exactly with your direct debit, especially when usage varies over the year.

What about Unlimited Energy?

If you’d rather not worry about how your usage will impact your bills, an Unlimited Energy deal is the perfect solution. Exactly like an unlimited mobile deal, you’ll pay the same each month regardless of how much you use.

Get a quote for Unlimited Energy.

Energy use for 1-bedroom flats can vary widely. A single person in a studio flat will use far less electricity than a couple working from home in a larger 1-bed, even though the properties technically both fall under the “low usage” category.

Here’s a rough guide to average electricity costs based on usage levels:

For most people living in a 1-bed flat, the low-usage estimate is the most realistic starting point; it may even be lower if you live alone and are out during the day or if you’re careful with energy use.

The simplest way to lower your electricity bill is to use less energy. Small changes can make a surprising difference, especially in a 1-bed flat where usage is already relatively low.

Our easy energy saving guide and energy saving myths are a good place to start.

Here are some easy, low-effort ways to cut costs, for both renters and homeowners:

• Get a smart meter: This shows your energy use in real time, so you can spot which appliances are using the most electricity.
• Use smart plugs: Smart plugs connect you to anything you can plug in, so you can turn them on and off remotely, and set timers so nothing is on when you don’t need it.
• Switch to LED bulbs: LEDs use about 80% less electricity than halogen bulbs and last much longer, saving you money on both energy and replacement costs.

Bigger upgrades (mainly for 1-bed flat owners)

If you own your flat and want to invest in long-term efficiency, these options can help lower running costs and make your home more sustainable:

• Improve insulation: Good insulation helps your flat hold onto heat, so you rely less on electric heaters, heated throws, or portable radiators. Flats in older buildings often see the biggest improvement.
• Install a heat pump: Heat pumps use electricity, and are much more efficient than traditional heating systems. For every unit of electricity they use, they can produce three to four units of heat.
• Add solar panels: If possible for your property, solar panels can generate electricity and may even allow you to send excess energy to the grid, which could earn money.

Even in a 1-bedroom flat, costs can vary depending on the size of your home, how many people live there, and how you use energy. Things like how your flat is heated and whether you work from home can affect your monthly bill.

For a simpler budget, condense your utility into one easy monthly payment with a One Utility Bill package. Create your own customer bills package with:

• Energy
• Broadband
• Water
• TV package and TV Licence