Can I switch from a multi-rate tariff (e.g., Economy 7) to a single rate tariff in the UK?

Yes. If your electricity meter and your supplier support it, you can move from a multi-rate tariff (such as Economy 7 or Economy 10) to a single rate tariff. The best option depends on when you use most of your electricity and whether you have storage heaters or other off-peak-heavy usage. You can compare tariffs and switch through https://www.energyplus.co.uk/.

Will switching to a single rate tariff always be cheaper?

Not always. Single rate tariffs can be cheaper for households that use most electricity during daytime/peak hours, while multi-rate tariffs may be better if a large share of your usage is overnight (for example, storage heaters, immersion heaters, or EV charging). Check your usage split before switching to avoid paying more overall.

Do I need a meter change to move to a single rate tariff?

Sometimes. If you have a traditional two-register meter set up for multi-rate billing, your supplier may be able to reconfigure it remotely, but in other cases a meter exchange may be needed (for example, replacing an older Economy 7 meter). With many smart meters, moving to single-rate billing can be simpler because tariffs can often be configured without replacing the meter.

Will I lose my off-peak hours if I switch to a single rate tariff?

Yes. A single rate tariff charges one unit rate for electricity at all times, so you would no longer have cheaper off-peak pricing. If you rely on off-peak electricity (e.g., for storage heaters or overnight EV charging), review the cost impact before switching.

Can I switch to a single rate tariff if I have storage heaters?

You can, but it may increase your costs if your storage heaters charge overnight. Many storage-heating homes benefit from off-peak rates. If you no longer use storage heaters, or you primarily use electricity during the day, a single rate tariff could be more suitable.

How do I know whether a single rate tariff will save me money?

Estimate what percentage of your electricity you use off-peak versus peak. As a rule of thumb, if you use relatively little electricity overnight, a single rate tariff can be better. If a large portion of your usage is off-peak, a multi-rate tariff may remain cheaper. You can compare options and switch at https://www.energyplus.co.uk/.

Will my electricity readings change when moving from Economy 7 to single rate?

They may. Economy 7 typically has two readings (day and night). On a single rate tariff, billing is usually based on one rate (and often one primary register). Your supplier will advise how readings will be handled, and it’s important to provide accurate opening readings at the time of the change.

Can I switch tariff and supplier at the same time?

Yes. You can often switch supplier and move to a single rate tariff as part of the same switch, subject to meter compatibility and tariff availability. Comparing deals and switching through https://www.energyplus.co.uk/ can help you find a better rate and complete the change in one journey.

Are there any fees or exit charges for switching to a single rate tariff?

It depends on your current tariff. Some fixed deals include exit fees if you leave before the end date, while many variable tariffs do not. Always check your tariff terms and any applicable charges before switching.

How quickly can I switch to a single rate tariff in the UK?

Timelines vary by supplier, meter type, and whether a meter exchange or reconfiguration is needed. Standard supplier switches in the UK can complete in a few working days, but meter work may take longer. Start your comparison and switch at https://www.energyplus.co.uk/.

Can I switch to a cheaper single-rate tariff in the UK?

Yes—if you meet the eligibility rules for your meter type and payment method, and the maths works for your usage. This guide shows when a single-rate tariff is likely to be cheaper than Economy 7/10, how to check, and how to switch safely.

Quick checks for Economy 7/10, smart meters, and prepayment
Two realistic examples with estimated costs (and assumptions stated)
Switching steps, exit fees, and common UK pitfalls

Get your single-rate quote How switching works

Estimates only. Tariffs, eligibility, and unit rates vary by region, meter type, and payment method. Always check your current contract and supplier terms.

Fast answer: when a single-rate tariff can be cheaper

You can usually switch to a cheaper single-rate (one unit price all day) tariff if suppliers offer one for your meter type and payment method, and your household doesn’t benefit enough from off-peak rates to justify Economy 7/10.

Most likely to save

You use less than ~30% of electricity overnight
You don’t have storage heaters / immersion timed overnight
You want simpler bills and easier comparisons

May not be cheaper

Storage heating that charges mainly off-peak
EV charging mostly overnight (with a suitable EV tariff)
High overnight use (often 35–45%+)

What to check first

Your meter: single-rate, Economy 7/10, smart
Any exit fees or fixed-term end date
How your supplier labels usage: day/night or rate 1/rate 2

Important: Switching tariff and changing meter configuration are different things. You can sometimes move to a single-rate tariff while keeping an Economy 7-capable meter (charged at a single rate), but other times you may need a meter reconfiguration or meter exchange. Your supplier will confirm what’s required.

Compare single-rate options (whole-of-market)

Tell us a few basics and we’ll match you with available UK home energy deals for your address and meter setup. We’ll highlight when a single-rate tariff is likely to beat Economy 7/10 based on the details you provide.

What you’ll need

Postcode and contact details
Your payment method (Direct Debit / prepay)
Meter type (single-rate, Economy 7, smart)

We’ll also explain

Any exit fees and timing considerations
Whether a meter change may be needed
Estimated monthly costs (where possible)

Tip: If you’re on Economy 7 and your bill shows “Rate 1 / Rate 2” rather than day/night, don’t guess. Your supplier can confirm which one is the off-peak register for your meter and region.

Get your quote

We’ll use your details to provide a personalised comparison. You can ask us not to call if you prefer email.

First name

Surname

We’ll send your comparison summary here.

Telephone

Optional, but helps if we need to clarify your meter setup.

Postcode

Used to match tariffs available in your region.

Meter type (best guess)

By submitting, you confirm you’re requesting a quote. Terms and availability vary by supplier.

How switching to single-rate works (UK homes)

Confirm your current setup: check your latest bill/app for meter type (single-rate vs Economy 7/10), payment method (Direct Debit, receipt of bill, or prepayment), and whether you’re in a fixed term with exit fees.
Compare available tariffs for your postcode: prices differ by region and supplier. Some suppliers restrict which tariffs are available for certain meter types.
Decide if you’re changing tariff only, or meter configuration too: moving from Economy 7 to a single-rate tariff may require a meter change or reprogramming. Timescales can vary and may require an appointment.
Submit your switch: your new supplier normally handles the process. You’ll get confirmation, then the switch completes once industry checks are done.
Take opening readings (if requested): especially important for non-smart meters or if your registers are labelled Rate 1/Rate 2.

About timing: UK switching has become quicker in many cases, but meter exchanges and complex meter types can add time. Your supplier will confirm the expected timeline for your meter.

Single-rate vs Economy 7: what usually matters most

A single-rate tariff can be cheaper even if its unit rate looks higher than Economy 7’s night rate—because the day rate on Economy 7 is often significantly higher. The key is how much electricity you actually use in the off-peak window.

Factor	Single-rate tariff	Economy 7/10 tariff	What to do
Off-peak usage share	Doesn’t matter—same price day/night	Crucial—savings only if enough use is off-peak	Estimate night % from bills or smart meter app
Heating & hot water	Often better if you don’t rely on storage heating	Often better for storage heaters / timed immersion	Check how your heating is wired/timed
Meter & tariff availability	Usually widely available	Not all suppliers/tariffs support multi-rate meters	Compare by postcode and meter type
Bill simplicity	Simple: one unit rate	More complex: day/night registers and times	If you struggle with readings, single-rate can help
Standing charge	Varies by supplier/region	Varies by supplier/region	Don’t compare unit rates only—include standing charge

Decision checklist (quick)

Do you know your night/off-peak % (or can you estimate it)?
Are you using storage heaters or a timed immersion?
Are you on prepayment or Direct Debit (tariffs can differ)?
Is there an exit fee if you leave your current fix early?
Would a meter change cause disruption you want to avoid?

Two realistic scenarios (estimated)

These examples show the logic. Rates vary by region and supplier. Assumptions are stated so you can swap in your own numbers.

Scenario A (typical flat, little overnight use)

Annual electricity use: 3,100 kWh
Off-peak share: 20% (620 kWh night / 2,480 kWh day)
Example single-rate: 24p/kWh, standing charge 55p/day
Example Economy 7: 31p/kWh day, 14p/kWh night, standing charge 55p/day

Estimated annual energy cost (electricity only):
Single-rate: (3,100×£0.24) + (365×£0.55) ˜ £945
Economy 7: (2,480×£0.31) + (620×£0.14) + (365×£0.55) ˜ £1,057
Difference: single-rate ˜ £112 cheaper (estimated)

Scenario B (storage heating / high overnight use)

Annual electricity use: 6,500 kWh
Off-peak share: 45% (2,925 kWh night / 3,575 kWh day)
Same example rates as above

Estimated annual energy cost (electricity only):
Single-rate: (6,500×£0.24) + (365×£0.55) ˜ £1,761
Economy 7: (3,575×£0.31) + (2,925×£0.14) + (365×£0.55) ˜ £1,719
Difference: Economy 7 ˜ £42 cheaper (estimated)

Break-even insight: With the example rates, Economy 7 becomes competitive when your night usage is roughly ~40%+. Your exact break-even point depends on your tariff’s day/night gap and standing charges.

Costs, exclusions, and common pitfalls (UK)

Most switching is straightforward, but these are the issues that most often cause confusion or unexpected costs.

1) Exit fees and fixed terms

If you’re on a fixed deal, leaving early can trigger an exit fee per fuel. Check your latest bill or online account. Some tariffs waive fees near the end date—your supplier will confirm.

2) Meter changes may be needed

Moving from Economy 7/10 to single-rate can sometimes require a meter exchange or reconfiguration. This can affect timing and availability of certain tariffs.

3) Off-peak hours aren’t the same everywhere

Economy 7 “night” times vary by region and can shift with clock changes. If your appliances aren’t running during your actual off-peak window, Economy 7 may underperform.

4) Day/night registers can be misread

If you submit readings against the wrong register, bills can look wrong. If your bill shows Rate 1 / Rate 2, ask your supplier which is day vs night for your meter.

5) Prepayment tariffs differ

If you’re on a prepayment meter, you may see fewer deals or different pricing. Some households can switch from prepay to credit (subject to checks and supplier policy).

6) Regional pricing and network costs

Unit rates and standing charges vary by UK region (distribution area). Always compare using your postcode, not national averages.

Don’t switch blind if you have storage heaters: If your heating relies on off-peak charging, moving to a single-rate tariff can increase costs significantly. If you’re not sure, get advice before changing meter configuration.

FAQs

Can I switch to single-rate if I have an Economy 7 meter?

Often yes, but it depends on the supplier and the tariff. Some suppliers can put an Economy 7-capable meter onto a single-rate tariff (charging one unit rate), while others require a meter reconfiguration or exchange. Always confirm what will happen to your registers and billing before you agree.

How do I know if I’m on a single-rate or multi-rate tariff?

Check your bill for one electricity unit rate (single-rate) or separate day/night (or Rate 1/Rate 2) prices. Your meter display may also cycle through multiple registers. If you’re unsure, your supplier can confirm using your MPAN and meter details.

What off-peak percentage makes Economy 7 worth it?

There’s no universal threshold because rates vary, but a common break-even range is around 35–45% overnight usage. Use your actual bill data (kWh on each register) to calculate your real split.

Can I switch if I’m renting?

In many cases, yes—you can usually choose your energy supplier if you pay the bills. However, changing the meter type may require landlord permission depending on your tenancy agreement. If you’re considering a meter exchange (not just a tariff change), check your contract and speak to your landlord/agent.

Will I lose my smart meter features if I switch?

Usually you can keep smart functionality, but it depends on the meter model and how it’s enrolled. If smart readings stop temporarily after a switch, suppliers can often resolve this. Your tariff type (single-rate vs multi-rate) is separate from whether your meter is smart.

Is it cheaper to switch gas and electricity together?

Not always. Dual-fuel can be convenient, but the best value can sometimes mean splitting suppliers. Compare both ways and look at the total estimated annual cost (including standing charges), not just a headline discount.

Could I be refused a switch to single-rate?

Sometimes. Reasons can include meter type compatibility, payment method restrictions (e.g. prepayment), debt arrangements, or supplier-specific eligibility rules. If one supplier can’t support your setup, another may—whole-of-market comparison helps identify options.

Does switching affect the energy price cap?

The price cap (set by Ofgem) applies to certain standard variable tariffs, with regional differences. Fixed tariffs and some other products can be priced differently. Always compare based on your postcode and usage—and check the tariff type and end date.

If you want a quick answer for your home: your latest bill will show day/night kWh (or Rate 1/Rate 2). That split is the single biggest clue whether a single-rate tariff is likely to be cheaper.

Trust, methodology, and sources

Page details

Written by:: EnergyPlus Editorial Team
Reviewed by:: Energy Specialist
Last updated:: April 2026

How we assess whether single-rate is cheaper

We focus on the factors that typically drive the biggest difference in UK electricity costs:

Your day vs night split (kWh): taken from bill registers where available.
Tariff structure: single unit rate vs separate day/night unit rates, plus standing charge.
Eligibility constraints: meter type (single-rate/Economy 7/10/smart), payment method (Direct Debit vs prepayment), and supplier availability by region.
Practical switching constraints: exit fees, fixed-term end dates, and whether a meter exchange/reconfiguration may be required.

Limitations: Examples on this page use illustrative rates to explain the break-even logic. Your real comparison should use your postcode, payment method, and actual day/night usage. Tariffs and supplier rules change frequently.

Sources (UK)

Ofgem (UK energy regulator) — guidance on switching, tariffs and the price cap.
Citizens Advice: Energy — independent help on bills, meters, and switching.
GOV.UK — consumer and household guidance (including support schemes where applicable).

Ready to check if a single-rate tariff is cheaper for your home?

Get a whole-of-market comparison matched to your postcode, meter type, and payment method. No misleading promises—just clear options and estimated costs.

Get your energy quote Re-read the key checks

Accessibility note: If you find forms difficult to use, you can still start by reviewing the checklist above and gathering your latest bill (showing day/night kWh) before requesting help.

Back to Guides & FAQs

Updated on 9 Apr 2026