Cheapest Economy 7 Tariff Rates UK This Week (June 2026)
Economy 7 (E7) gives you a cheaper electricity unit rate for 7 hours overnight — typically 00:30 to 07:30 — in exchange for a slightly higher daytime rate. It's ideal for storage-heater homes, electric hot-water cylinders running off a timer, and households that can run washing/drying/dishwashing overnight. This week (late May 2026) the cheapest night rate live in the UK is British Gas Standard E7 at ~12.5p/kWh, with three more suppliers within ~1.5p of that headline.
- Verified late-May 2026 night unit rates across every UK E7 supplier
- Honest day-rate comparison so you can model your actual mix
- How the 7-hour window varies by DNO region and meter type
- Locked-in pricing before the July 2026 cap rise
E7 in June 2026 — still a strong fit for storage-heater homes
Economy 7 has been around since the 1970s, designed for night-storage heaters that charge thermal bricks overnight. In May 2026 it's still the simplest way for storage-heater households to slash their bill — a typical 18,000 kWh/yr storage-heater home running 70% on the British Gas Standard E7 night rate (~12.5p) pays around £2,400/yr for heating, versus closer to £5,000 on a standard fix. The gap dwarfs anything a smart TOU plan can offer for a non-smart property.
For homes without storage heaters or an electric hot-water cylinder, the case is weaker. Day rates on E7 are typically 3–6p/kWh above the standard fix day rate, so if you only shift 10–20% of your usage overnight (the average household runs 22% off-peak naturally) you'll pay more than on E.ON Next Fixed at £1,602/yr. The form on the right models both.
Find this week's cheapest Economy 7 tariff
Enter your postcode and your E7 night/day split — we'll match you to the live cheapest E7 in your DNO region. Takes about 60 seconds.
Live UK Economy 7 rates — this week (late June 2026)
Rates verified late May 2026 from public supplier T&Cs. Day rates and standing charges vary by DNO region; the night unit rate is most consistent.
| Supplier & tariff | Night rate | Day rate (typical) | Standing charge | Notes |
|---|---|---|---|---|
| British Gas Standard E7 | ~12.5p/kWh | ~30p/kWh | ~63p/day | Cheapest night rate in May 2026; UK-wide |
| EDF E7 Fixed | ~13.2p/kWh | ~29p/kWh | ~63p/day | 12-month fix; protects against July 2026 cap rise |
| OVO Simpler Energy E7 | ~13.8p/kWh | ~28p/kWh | ~63p/day | Lowest day rate of the four; useful if night use under 50% |
| Octopus E7 | ~14p/kWh | ~30p/kWh | ~63p/day | Premium customer service; smart-meter required |
Cheapest overall annual cost depends on your night/day split — a high-night user (70%+) wins with British Gas; a low-night user (under 40%) might win with OVO. Confirm via the comparison form.
E7 night window — when exactly is the cheap rate?
The E7 night window is 7 consecutive hours, but the start time depends on your meter and region:
Most of England & Wales
00:30–07:30 GMT (01:30–08:30 BST). Most common pattern — if you don't know yours, this is the safe assumption.
Northern Scotland
22:30–05:30 GMT on some meter types — night rate starts earlier to balance grid load. Check your meter or supplier app to confirm.
Random offset (older meters)
Some pre-2018 E7 meters use a Radio Teleswitch with a region-specific offset (e.g. 00:00–07:00, 01:30–08:30). Your supplier app or last bill will show the exact window.
If you have a SMETS2 smart meter the window is set by the supplier and easy to change. Older RTS meters are being phased out by Ofgem — ask your supplier to replace if yours is RTS-only, as the radio service ends in 2026–2027.
Is Economy 7 worth it for your home in June 2026?
The break-even is roughly 40–45% of usage overnight. Above that, E7 wins versus a standard fix; below it, a flat-rate fix like E.ON Next Fixed (£1,602/yr) is cheaper.
E7 likely wins
Night-storage heaters (60–80% night use), immersion hot-water cylinder on overnight timer, EV charging with no home-charger smart integration, properties off the gas grid using electric heat overnight.
E7 likely loses
Gas-heated home with daytime occupancy (working from home, retired, kids back from school) where natural off-peak share is under 30%. Standard fix wins by £100–£300/yr.
Economy 7 vs smart TOU tariffs — which to pick in 2026?
Smart TOU tariffs like Intelligent Octopus Go (7p/kWh) and E.ON Next Drive (~6.7p/kWh) offer night rates roughly half of even British Gas Standard E7. The catch is they require a SMETS2 smart meter and a home EV charger (or smart battery) to be worth the higher peak rate.
Pick E7
Storage-heater home, no smart meter, no EV, no heat pump. E7 needs no additional hardware and 7 hours of cheap rate is enough to charge storage bricks fully.
Pick smart EV TOU
EV with home charger and SMETS2 meter. Intelligent Octopus Go (7p) or E.ON Next Drive (~6.7p) gives roughly 12–14% off vs E7 night rate plus smart-extended cheap hours.
Pick heat-pump TOU
Heat pump with SMETS2. Octopus Cosy (13p across three windows totalling 9 hours) beats E7 because heat pumps need multiple cheap periods through the day, not one overnight slot.
How the July 2026 cap changes E7 maths
Ofgem's confirmed July–September 2026 cap of £1,862/yr (typical direct-debit dual-fuel) applies to standard variable E7 tariffs the same way it does to single-rate SVT. The cap formula adjusts the night/day rate split, but the overall rise is roughly +5% on the electricity element — less dramatic than the +24% on gas. About 22 million UK accounts on fixed tariffs are insulated for their contract length.
EDF E7 Fixed (~13.2p/kWh night, 12-month fix) is the cleanest hedge for E7 customers ahead of July 2026 — you lock in the May 2026 night and day rates regardless of what the cap does in July or October. British Gas Standard E7 (~12.5p/kWh night) is the cheapest live rate but moves with the cap. The comparison form shows total cost on both.
Switching your Economy 7 tariff — step by step
- Look at your last bill or supplier app to find your annual day and night kWh figures separately.
- Calculate your night percentage. If under 30%, consider switching off E7 to a standard fix. If 40%+, stay on E7.
- Note your DNO region (shown on your bill).
- Submit postcode and night/day split via the comparison form.
- Sign up to the winning E7 (or non-E7) tariff online — switch takes 5 working days under the Switch Guarantee.
- If you're switching off E7 entirely you may need a meter exchange (free with most suppliers in May 2026) — confirm with your new supplier.
Frequently asked questions — Economy 7 rates this week (June 2026)
What's the cheapest Economy 7 night rate in the UK this week (late June 2026)?
British Gas Standard E7 leads at ~12.5p/kWh night rate as of late May 2026. EDF E7 Fixed follows at ~13.2p/kWh (and locks in the rate for 12 months). OVO Simpler Energy E7 is ~13.8p/kWh and Octopus E7 is ~14p/kWh. Day rates run 28–33p/kWh — your total annual cost depends on the night/day split. Compare via the comparison form.
When does the Economy 7 night rate start?
Most of England and Wales: 00:30–07:30 GMT (01:30–08:30 BST). Northern Scotland often runs 22:30–05:30. Some older Radio Teleswitch (RTS) meters use a region-specific offset. Your supplier app or latest bill shows the exact window. RTS service ends in 2026–2027 so RTS meters are being upgraded to SMETS2.
Is Economy 7 still worth it in 2026?
For storage-heater homes and electric-hot-water-cylinder homes, yes — clearly. A typical 18,000 kWh/yr storage heater home running 70% on British Gas Standard E7 night rate (~12.5p) pays around £2,400/yr for heating versus closer to £5,000 on a flat fix. For a gas-heated daytime-occupied home where natural off-peak share is under 30%, a flat fix like E.ON Next Fixed (£1,602/yr) usually wins.
How does the July 2026 price cap affect E7 rates?
Standard-variable E7 tariffs are capped by Ofgem the same way single-rate SVT is. The July 2026 cap raises the electricity element by ~5% (gas +24%), so E7 night rates on the cap nudge up slightly from 1 July 2026. Fixed E7 tariffs like EDF E7 Fixed are insulated for their 12-month contract length — locking in May 2026 night and day rates.
Should I switch from Economy 7 to a smart TOU tariff like Octopus Go?
If you have a SMETS2 smart meter and an EV with home charger — yes. Intelligent Octopus Go at 7p/kWh is roughly 44% cheaper than British Gas E7 night rate (~12.5p), and smart scheduling often extends the cheap window beyond 6 hours. For heat-pump homes, Octopus Cosy (13p/kWh across three daily windows) beats E7 because heat pumps need multiple cheap periods, not one overnight slot. The comparison form models both.
Why is my E7 day rate higher than a standard fix?
Because the supplier recovers the discount they're giving you overnight. E7 day rates are typically 3–6p/kWh above the standard fix day rate. If you can't shift at least 40% of your usage overnight, the higher day rate eats up your night savings and you'll pay more than on E.ON Next Fixed (£1,602/yr) or Octopus 12M Fixed (£1,632/yr).
Do I need a special meter for Economy 7?
Yes — either a dedicated dual-rate E7 meter (older properties), a SMETS2 smart meter configured for E7, or a recently upgraded SMETS1 meter with DCC enrolment. If you have a single-rate meter, your supplier will arrange a free exchange when you switch to an E7 tariff — typically 2–4 weeks lead time.
How long does it take to switch to an Economy 7 tariff?
5 working days under Ofgem's Switch Guarantee if you already have a compatible meter. Add 2–4 weeks if a meter exchange is needed (new SMETS2 or dedicated dual-rate). 14-day cooling-off period after sign-up. No exit fees on most May 2026 E7 standard variable tariffs; some 12-month fixes carry £50–£75 per fuel.
Find this week's cheapest Economy 7 rate before 1 July 2026
The July 2026 cap lands in 32 days. British Gas Standard E7 at ~12.5p/kWh night is this week's cheapest live rate; EDF E7 Fixed locks the May 2026 rate for 12 months. The form compares both alongside smart TOU alternatives for your DNO region. Takes 60 seconds.
Find your best Economy 7 tariff
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