Switch to a cheaper Economy 7 tariff in the UK this month

Compare whole-of-market Economy 7 options (where available), check whether day/night rates suit your usage, and switch with confidence—without guesswork.

  • See if Economy 7 is likely to save you based on your day vs night electricity use
  • Understand night hours, meter types, and common eligibility issues (UK-specific)
  • Get an estimated quote and switching help—no promises, just transparent comparisons
Get your Economy 7 quote How Economy 7 switching works

Estimates only. Availability and prices vary by region, meter type and payment method. Always check tariff T&Cs, unit rates, standing charges and any exit fees.

Fast answer: can you switch to a cheaper Economy 7 tariff this month?

Possibly—but it depends on your electricity split between day and night, your meter setup, and which Economy 7 tariffs are available in your region. Economy 7 is most likely to be cheaper overall if you can shift a meaningful chunk of usage to the night rate (often via storage heaters, an immersion heater on a timer, or charging devices overnight).

Key takeaways

  • Economy 7 = two electricity rates (day + night) plus a standing charge.
  • Night hours vary by region and meter setup; don’t assume it’s midnight–7am.
  • For many homes, Economy 7 only wins if roughly 30–40%+ of electricity use is at night (rule of thumb; depends on rates).
  • If you’ve got storage heaters, Economy 7 (or similar multi-rate tariffs) is often worth checking.
  • Always compare the total estimated annual cost, not just the headline night unit rate.

Quick self-check

Your meter
Do you have an Economy 7 / multi-rate meter (two readings) or smart meter set up for two rates?
Heating & hot water
Storage heaters / immersion heater on timer? These can make night usage high enough to benefit.
Usage pattern
Can you run appliances overnight (dishwasher, washing machine) safely and within manufacturer guidance?

Important: If you don’t have a suitable meter, switching to an Economy 7 tariff may require a meter reconfiguration or exchange. Not all homes are eligible, and times can differ.

Compare Economy 7 deals (whole of market) and see what’s cheaper for you

Use the form to request an estimated quote. We’ll use your postcode and contact details to help match tariffs by region, meter type and payment method (where available). If Economy 7 isn’t a good fit, we’ll show standard single-rate options too.

What you’ll need (2 minutes)

  • Postcode (to find regional pricing)
  • Whether you pay by Direct Debit / on receipt of bill / prepayment (if known)
  • If you have a two-rate meter (Economy 7) or smart meter (if known)

How to spot Economy 7 on a bill

Look for two electricity readings (often labelled Day/Night, Rate 1/Rate 2, or R1/R2) and two unit rates in p/kWh.

If you only see one electricity unit rate and one reading, you’re likely on a single-rate tariff.

How Economy 7 switching works (UK)

  1. We compare tariffs available for your postcode and meter setup (Economy 7 where eligible, plus alternatives).
  2. You choose a tariff after checking unit rates, standing charge, contract length and any exit fees.
  3. Supplier handles the switch. Switching typically completes in around 5 working days for straightforward switches, but can take longer if meter work is needed.
  4. Provide meter readings (unless your smart meter sends them) so your final bill is accurate.

Cooling-off: Many energy switches include a 14-day cooling-off period. If you change your mind within that period, you can usually cancel—check your supplier’s terms.

Get an Economy 7 quote

Tell us where you are and how to reach you. We’ll come back with options and next steps.

We’ll email your estimate and any questions needed to complete your comparison.

Helpful if we need to confirm meter details or timing.

Used to match your regional electricity rates and availability.

We’ll use your details to respond to your request. Always check tariff terms before switching.

Tenant? You can usually switch if you pay the energy bills, but landlords may control metering changes. If you’re on a managed supply (e.g. bills included), you may not be able to choose the tariff.

Economy 7 vs single-rate: what matters when comparing

A cheaper night rate is only helpful if you actually use it. Compare tariffs using the total estimated cost and consider standing charges, contract terms, and your ability to shift usage overnight.

Feature Economy 7 tariff Single-rate tariff Best for
Unit rates Two rates: day (higher) + night (lower) One rate all day People who can shift usage to night vs people with mostly daytime use
Night window Typically ~7 hours, varies by region/meter Not applicable Homes with timers/storage heating that reliably run overnight
Meter requirements Two-rate or smart meter configured for multi-rate Standard meter/smart meter Economy 7 if you already have the meter (or can get one without hassle)
Standing charge One daily charge (varies by tariff/region) One daily charge (varies by tariff/region) Compare standing charges closely if your usage is low
Risk of overpaying Higher if most consumption happens in day rate Lower complexity; easier to predict Single-rate if you can’t confidently shift usage to night

Decision checklist: Economy 7 is more likely to suit you if…

  • You have storage heaters and/or an immersion heater you can schedule overnight
  • You can reliably shift a chunk of use (laundry, dishwashing) to the night window
  • You already have an Economy 7 meter (two readings) or a smart meter set up for two rates
  • You’re willing to check the night hours for your exact tariff/meter

Economy 7 may not suit you if…

  • Most electricity use is daytime/evening (work-from-home, electric cooking, tumble dryer in the evening)
  • You can’t run appliances overnight (or don’t want to)
  • You’re on a complex legacy setup (e.g. related to electric heating) and aren’t sure what the meter supports
  • You’re considering Economy 7 purely for a low night rate, without checking the higher day rate and standing charge

Tip: If you’ve got a smart meter, ask the supplier (or check the tariff information) whether it supports two-rate billing. Not all smart meter setups are configured the same way.

Costs, exclusions and common Economy 7 pitfalls (UK)

These are the issues that most often cause surprise bills or failed switches. If anything below applies, it doesn’t mean you can’t switch—just that you should confirm details before you commit.

1) Night hours aren’t universal

Economy 7 night periods can vary by region, meter type and sometimes daylight-saving changes. Some meters have times printed on the meter or in the tariff details, and smart meters may apply the window automatically.

What to do: Confirm your exact night window with your supplier before changing habits.

2) The day rate can be meaningfully higher

Economy 7 works by charging more in the day. If you don’t use enough electricity at night, your total cost can increase—even if the night unit rate looks great.

What to do: Compare the estimated annual cost using your realistic day/night split.

3) Meter changes may take time (and may not be free)

If you’re moving to or from Economy 7 and don’t have the right meter configuration, the supplier may need to reconfigure or exchange the meter. Policies vary and lead times can be longer than a standard switch.

What to do: Ask about any meter appointment, charges, and whether your meter supports two-rate billing.

4) Exit fees and fixed-term contracts

Some fixed tariffs include exit fees if you leave before the end date. These can wipe out short-term savings if you switch again quickly.

  • Check whether your current tariff has exit fees
  • Check whether the new tariff has exit fees and how long it runs
  • If you’re near the end of your contract, factor that into timing

5) Payment method and eligibility constraints

Not every tariff is available for every payment method. For example, Direct Debit tariffs can be priced differently to pay-on-receipt-of-bill or prepayment options.

If you’re on prepayment: options may be more limited. It’s still worth comparing, but expect fewer Economy 7 choices.

Two realistic scenarios (with numbers)

These examples show how the maths works. They are illustrative only—rates vary by supplier, region and time. Standing charges are excluded below to keep the example focused on day/night split (in real comparisons, include standing charge).

Scenario A: Flat with storage heaters (Economy 7 tends to suit)

  • Annual electricity use: 4,200 kWh
  • Night share: 55% (2,310 kWh night / 1,890 kWh day)
  • Example Economy 7 rates: Night 16p/kWh, Day 35p/kWh
  • Example single-rate: 28p/kWh

Estimated unit cost on Economy 7: (2,310×£0.16) + (1,890×£0.35) = £1,030.50

Estimated unit cost on single-rate: 4,200×£0.28 = £1,176.00

In this example, Economy 7 is cheaper on unit costs by ~£145/year before standing charges.

Scenario B: Gas-heated home (Economy 7 often doesn’t suit)

  • Annual electricity use: 3,100 kWh
  • Night share: 20% (620 kWh night / 2,480 kWh day)
  • Example Economy 7 rates: Night 16p/kWh, Day 35p/kWh
  • Example single-rate: 28p/kWh

Estimated unit cost on Economy 7: (620×£0.16) + (2,480×£0.35) = £966.20

Estimated unit cost on single-rate: 3,100×£0.28 = £868.00

In this example, Economy 7 costs ~£98/year more on unit costs before standing charges.

To make a real decision, you’ll want the actual day rate, night rate and standing charge for tariffs available at your postcode—and your best estimate of the night share.

Economy 7 FAQs (UK)

What times are Economy 7 night rates?

It depends on your region and meter configuration. Many are around a 7-hour window overnight, but the exact start/end times can differ. Always confirm your specific night hours from your supplier or tariff information.

How do I know if I have an Economy 7 meter?

Check your bill for two electricity readings and two unit rates (Day/Night or Rate 1/Rate 2). Your meter may also show two registers when you cycle the display.

Can I switch from Economy 7 to a normal (single-rate) tariff?

Often yes, but it depends on the meter. Some suppliers can bill a two-rate meter on a single-rate tariff; others may require a meter reconfiguration or exchange. Ask the new supplier what they support before you apply.

Is Economy 7 cheaper with a smart meter?

A smart meter doesn’t automatically make Economy 7 cheaper. It can make readings easier and may support multi-rate billing, but the value still depends on the day/night prices and your usage pattern.

Do Economy 7 tariffs exist for prepayment meters?

Sometimes, but availability can be more limited and varies by supplier, region and meter type. If you’re on prepayment, compare what’s available for your postcode and confirm whether your setup supports two rates.

Will switching affect my electricity supply?

No—switching supplier should not interrupt your supply. The electricity network stays the same; only your billing supplier changes. If meter work is required, that involves an appointment but still shouldn’t mean losing supply for long periods.

Can I get Economy 7 if I don’t have storage heaters?

Yes, but it may be harder to benefit unless you can shift usage overnight. If your heating and hot water aren’t electric, many households find a single-rate tariff simpler and often cheaper—though it’s worth checking with real rates.

What if I don’t know my day vs night usage?

Start with a rough estimate based on what runs overnight (heaters, immersion, appliances). If you have a smart meter or in-home display, you may be able to see time-of-use patterns. Your supplier may also provide register splits if you already have two readings.

Trust, methodology and sources

Trust signals

Reviewed by
Energy Specialist
Last updated
April 2026

How we assess “cheaper Economy 7” (and limitations)

We focus on what changes the total bill for a typical UK home considering Economy 7:

  • Rates that matter: electricity day unit rate (p/kWh), night unit rate (p/kWh), and electricity standing charge (p/day).
  • Household fit: estimated share of usage in the night window (a common reason Economy 7 disappoints is overestimating night use).
  • Eligibility & friction: meter type (two-register/smart configured), payment method, and whether any meter change is required.
  • Contract terms: tariff length, price type (fixed/variable), exit fees and any special conditions.

Limitations: Prices vary by region and change over time. Some suppliers restrict Economy 7 availability based on meter type or operational constraints. Any “savings” are estimates and depend on your real usage, including seasonal changes (storage heating can significantly increase winter night consumption).

Sources (UK)

If you’re in debt to your current supplier or you’re vulnerable, you may have extra protections and support options. Citizens Advice is a good starting point.

Ready to check whether Economy 7 is cheaper for your home?

Get an estimate based on your postcode and meter setup, then decide with clear day/night rates and tariff terms.

Get your Economy 7 quote See the comparison checklist

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Updated on 6 Apr 2026