Do I need a special tariff to run an electric blanket cheaply?

Usually not. Because an electric blanket is a relatively low-wattage appliance, the biggest wins come from choosing the best overall household tariff (unit rate + standing charge) and using the blanket efficiently.

Is Economy 7 always cheaper if I use my blanket overnight?

No. Economy 7 can make overnight electricity cheaper, but the daytime unit rate is often higher. It tends to work best if you can shift a meaningful share of total usage to off-peak hours (not just the blanket).

How can I tell if I have Economy 7?

Check your electricity bill for two unit rates (often labelled day and night) or look at your meter display for multiple registers. If in doubt, your supplier can confirm your meter type and off-peak hours.

Do standing charges matter if I’m only comparing blanket costs?

Standing charges don’t change because you use an electric blanket, but they matter when choosing a tariff. If your household uses relatively little energy, a higher standing charge can outweigh a slightly cheaper unit rate.

Can I access the same deals on a prepayment meter?

Not always. Deal availability can be more limited for prepay, and rates may differ versus Direct Debit. Some suppliers offer smart prepayment options, but availability varies by area and meter setup.

Is a fixed tariff better than variable for winter comfort?

A fixed tariff can offer price certainty for a set term, which some households prefer for budgeting. But check exit fees, the end date, and what happens when the fix ends (many suppliers move you to a standard variable tariff).

Will a smart meter help me find a better tariff for night-time use?

It can. Some tariffs (like time-of-use) require a smart meter. A smart meter can also make it easier to see when you’re using electricity—which helps you decide whether a night-rate tariff is actually a good fit.

If I switch supplier, will my electric blanket cost change immediately?

Your blanket’s energy use stays the same, but the cost per kWh can change from the date your new tariff starts. Any savings (or extra cost) depend on your new unit rate, standing charge, and when you use electricity.

Best energy tariff for an electric blanket (UK guide)

Electric blankets don’t usually need a special tariff — but the best tariff for you depends on your meter type, payment method, and when you use electricity. Use this guide to pick the right tariff type and compare whole-of-market deals with confidence.

Understand which tariff types can help (single-rate, Economy 7, smart time-of-use)
See realistic running costs (with clear assumptions) and common pitfalls
Compare options and get a quote based on your postcode and meter

Get your energy quote How to choose the right tariff

Estimates only. Tariff availability varies by region, meter type and supplier checks. Always confirm your rates and any exit fees before switching.

Fast answer: what’s the best tariff for an electric blanket in the UK?

For most homes, the “best” tariff for an electric blanket is simply the cheapest electricity unit rate available for your meter and payment type — because an electric blanket typically uses low power compared to heating.

Key takeaways (quick)

Single-rate tariffs suit most people (blanket use is small in kWh).
Economy 7 can work if you use the blanket mainly during your actual off-peak hours and you already have (or can keep) an E7 meter.
Smart time-of-use tariffs can help if you can reliably run it in cheap windows, but prices vary by time and day.
Don’t switch tariff type just for a blanket if it increases your day rate significantly.

What you should check first

Your meter: Standard, Economy 7, or smart meter (impacts which tariffs you can join).
Your usage timing: Do you use the blanket mostly at night? Early morning? Evening on the sofa?
Your payment method: Direct Debit, prepayment, or pay on receipt — pricing can differ.

Important: An electric blanket is not a substitute for safe, adequate heating. If you’re struggling with bills, see support options via Citizens Advice and GOV.UK (linked below).

Compare tariffs for your home (whole-of-market)

The best tariff for an electric blanket is usually the best overall electricity deal for your property. Share a few details and we’ll match tariffs by postcode, meter type and payment method.

What happens next

We check available tariffs for your region and meter type
We highlight key terms (e.g. exit fees, fixed vs variable)
You can choose whether to switch now or save results for later

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Tip: If you have an Economy 7 meter, check your current off-peak hours. They can differ by region and meter setup.

How to choose the right tariff for electric blanket use

Focus on when you use the blanket and what tariff structures you can access. An electric blanket often uses 50W–200W depending on size and heat setting, so the biggest wins usually come from your overall tariff choice (and not just shifting blanket use).

1) Identify your meter & eligibility

Standard meter: easiest — most tariffs available.
Economy 7: you’ll see separate day/night rates.
Smart meter: needed for most time-of-use tariffs.

2) Match tariff to your routine

Night-time sleepers: consider Economy 7 or time-of-use.
Evening sofa use: often best on single-rate.
Mixed use: choose the lowest overall annual estimate, not the cheapest “night” rate alone.

3) Check the terms that actually matter

Unit rates (p/kWh) and the standing charge (p/day)
Fixed vs variable, and exit fees
Payment method differences (Direct Debit vs prepayment)

Reality check: Standing charges can outweigh small usage changes. If your blanket costs pennies per night, switching to a tariff with a higher standing charge may wipe out any benefit.

Tariff types compared (for electric blanket use)

This table helps you pick the tariff structure that fits your routine. Exact prices vary by supplier, region, payment method and market conditions.

Tariff type	Best for	Watch-outs	What to check before switching
Single-rate (standard)	Most households; blanket used at varied times	No special “cheap hours” to target	Unit rate + standing charge; exit fees on fixes
Economy 7 (dual-rate)	People using electricity mainly overnight (e.g. storage heaters, night-time blanket use)	Day rate can be higher; off-peak times vary; some homes use too little night electricity to benefit	Your actual off-peak window; how much of your total kWh is at night; whether you can switch meter type
Smart time-of-use (TOU)	People with a smart meter who can target cheap periods consistently	Rates can change by half-hour; peak rates may be higher; not ideal if usage is inflexible	Peak pricing rules; how prices are set/updated; whether the cheap window matches your routine
Variable (incl. standard variable)	Short-term flexibility; no exit fees in many cases	Price can change; may not be the cheapest long term	How/when prices change; current rates; service and billing reviews

Decision checklist: who it suits

Single-rate: you use the blanket on/off across evenings and nights, and want simplicity.
Economy 7: you already have E7 and can use a meaningful share of electricity in the off-peak window.
TOU: you have a smart meter and you’re confident you can avoid peak periods most days.

Who it may not suit

Economy 7: if most of your electricity use is daytime/evening (high day rate can cost more overall).
TOU: if your household use is hard to shift (cooking, homework time, evening routines).
Any fixed deal: if you expect to move soon and exit fees apply.

Electric blanket costs, exclusions and common pitfalls

The blanket itself is usually cheap to run — but the tariff choice can still matter if it nudges you towards (or away from) cheaper hours. Here are practical numbers and gotchas.

Typical running cost (rule of thumb)

Cost per hour ≈ (power in kW) × (unit rate).
Example: 120W blanket = 0.12kW. At 30p/kWh, that’s about 3.6p per hour.

Heat settings cycle on/off. Actual use can be lower than the stated wattage.

Scenario 1: evening use on single-rate

Assumptions (example only): 100W blanket, used 2 hours/day for 120 winter days; unit rate 30p/kWh.

Energy: 0.1kW × 2h × 120 = 24kWh
Estimated cost: 24kWh × £0.30 = £7.20 for the season.

Scenario 2: overnight use with Economy 7

Assumptions (example only): 150W blanket, used 7 hours/night for 90 days; night rate 16p/kWh; day rate higher doesn’t apply to the blanket.

Energy: 0.15kW × 7h × 90 = 94.5kWh
Estimated cost: 94.5kWh × £0.16 = £15.12 for the season.

Common pitfalls (and how to avoid them)

Chasing a cheap night rate: Economy 7 can cost more overall if your day usage is high and the day unit rate is much higher.
Off-peak hours mismatch: your “night” period may not be midnight–7am. Confirm your actual off-peak window with your supplier or meter setup.
Standing charge blind spot: a slightly lower unit rate may be outweighed by a higher standing charge.
Exit fees: fixed tariffs can charge for leaving early. Factor this in if you might move.
Prepayment differences: prepayment tariffs can be priced differently and have fewer options.
Meter change implications: switching from/to Economy 7 isn’t always instant; some suppliers may have restrictions or fees.

Quick sanity-check formula

If you’re comparing two tariffs A vs B, estimate the blanket’s annual cost difference:

(kWh used in that period) × (rate difference)

Then compare that to any differences in standing charge, day rate impact, or exit fees.

Safety note: Follow manufacturer guidance (timers, overheat protection, and age/condition checks). This page covers tariffs and costs only, not medical or product safety advice.

FAQs: electric blankets and energy tariffs (UK)

Do I need a special tariff to run an electric blanket?

No. An electric blanket works on any electricity tariff. The best option is usually the tariff that gives you the lowest overall electricity cost for your home (unit rate + standing charge), given your meter and payment type.

Is Economy 7 worth it just for an electric blanket?

Usually not on its own. The blanket’s kWh use is often small, while Economy 7 can come with a higher day rate. It can be worthwhile if you already have Economy 7 and you use a significant share of total electricity overnight.

How do I know my off-peak hours for Economy 7?

Off-peak times vary by region and meter setup. Check your latest bill, your online account, or ask your supplier. If you have a legacy setup (e.g. radio teleswitch), timings can differ and may change with upgrades.

Will a smart time-of-use tariff definitely cut my blanket costs?

Not definitely. If you can run the blanket in cheaper periods, the blanket portion may cost less. But peak rates can be higher, so you should judge the tariff on your overall household usage pattern, not the blanket alone.

Do electric blankets use a lot of electricity?

Compared with space heaters, usually no. Many blankets are tens to a couple of hundred watts. Actual consumption depends on heat setting, thermostats cycling on/off, and how long you use it.

What matters more: unit rate or standing charge?

Both. For low-usage households, standing charge can be a big share of the bill. For higher-usage homes, unit rate differences tend to matter more. When comparing tariffs, look at the estimated annual cost based on your usage profile.

Can I switch tariffs if I’m on a prepayment meter?

Often yes, but choice can be more limited and pricing may differ. Your eligibility can depend on meter type, debt on the meter, and supplier criteria. Compare using your postcode and select prepayment where prompted.

I rent — can I change tariff to cut costs?

In many cases, yes: if you pay the energy bills, you can usually choose the supplier/tariff. If bills are included in rent or managed by a landlord, you may not have control. Always check your tenancy agreement and speak to your landlord/agent if unsure.

Trust, methodology and sources

Editorial information

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

How we assess “best tariff” for electric blanket use

We don’t label one single tariff as “best” for everyone. Instead, we explain how to choose based on UK household realities:

Tariff availability: depends on postcode region (distribution area), meter type (standard/Economy 7/smart), and payment method.
Total cost focus: we prioritise estimated annual cost using unit rate(s) and standing charge, rather than only the cheapest night rate.
Usage timing: we consider whether blanket use can realistically fall into off-peak windows (Economy 7) or cheaper half-hours (TOU).
Terms that affect switching: exit fees, fixed vs variable, and practical eligibility (e.g. smart meter required for some tariffs).

Limitations: The scenarios on this page are illustrative estimates. Your actual costs depend on your blanket wattage, thermostat behaviour, how long you use it, and your exact tariff rates (including any time bands).

Sources (UK)

Ofgem (UK energy regulator) — guidance on switching, tariffs and consumer protections.
Citizens Advice: Energy — support with bills, switching, and complaints.
GOV.UK: Help with heating costs — official information on support schemes and eligibility.

Ready to find your best electricity tariff?

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Updated on 13 May 2026