Find Your Best UK Electricity Tariff
Upload your smart meter data and compare across all major UK electricity tariffs — including Standard, Economy 7, Time of Use and Dynamic pricing. Especially useful for heat pump and EV households with higher consumption.
How It Works
1. Register
Create a free account and set your DNO region to see tariffs in your area.
2. Upload Data
Export your half-hourly smart meter readings as CSV and upload them.
3. Compare
See what you'd pay on each tariff based on your actual usage pattern.
4. Save
Switch to the best deal — or stay confidently on your current tariff.
Tariff Types We Compare
A single unit rate for all electricity used, 24 hours a day.
Separate day and night rates with a customisable night window.
Multiple rate bands throughout the day — peak, off-peak and more.
Half-hourly rates that change with the grid, like Octopus Agile. Can go negative.
Tariffs We Compare
We track live rates across 6 suppliers and 23 tariffs across all 14 UK DNO regions.
EDF
5 tariffs tracked across all UK regions
- FreePhase Dynamic 12m
- FreePhase Dynamic 12m v2 HH
- Freephase Static 12m HH
- Freephase Static 12m v2 HH
- Heat Pump Tracker 36m HH
Eon Next
2 tariffs tracked across all UK regions
- Next Pledge Tracker 12m v10
- Next Pumped Fixed 12m V7
Good Energy
3 tariffs tracked across all UK regions
- Good Energy Heat Pump Apr 2026
- Good Energy Heat Pump Jan 2026
- Good Energy Heat Pump Mar 2026
Octopus
11 tariffs tracked across all UK regions
- Agile Octopus October 2024 v1
- Cosy Octopus 12M Fixed March 2026 v1
- Cosy Octopus 12M Fixed March 2026 v2
- Cosy Octopus 12M Fixed Sep 2024
- Cosy Octopus 6M Fixed March 2026
- Cosy Octopus Variable
- Flexible Octopus
- Octopus Tracker April 2026 v1
- Octopus Tracker July 2024 v1
- Octopus Tracker September 2025 v1
- Snug Octopus
Price Cap
1 tariff tracked across all UK regions
- Price Cap
ScottishPower
1 tariff tracked across all UK regions
- Heat Pump Saver Apr 2027 v1
Rates are fetched automatically from supplier APIs and updated daily. All 14 UK DNO regions covered: Eastern England, East Midlands, London, North West, Northern England, Southern England, South Wales, South East, South West, West Midlands, Merseyside & North Wales, South Scotland, and North Scotland.
Especially Useful for Heat Pump & EV Households
Heat pumps and electric vehicles can add 5,000–15,000 kWh per year to your electricity bill — far above the typical UK household average of around 3,500 kWh. At that consumption level, even a small difference in unit rate makes a very significant difference to your annual bill.
Many households with heat pumps benefit from smart tariffs like Octopus Agile (dynamic half-hourly pricing) or Time of Use tariffs, where cheap overnight rates can be exploited by scheduling your heat pump or EV charging to run during off-peak periods. But whether that's actually true for your home depends on your specific usage pattern — which is exactly what this tool analyses.
Upload your smart meter data and we'll calculate your exact cost on every available tariff based on when you actually use electricity — not a generic estimate.
Why tariff choice matters more at higher consumption
| Household type | Typical annual kWh |
|---|---|
| Average UK household | ~3,500 kWh |
| EV owner (avg mileage) | ~5,500–6,500 kWh |
| Heat pump (3-bed home) | ~8,000–12,000 kWh |
| Heat pump + EV | ~13,000–18,000 kWh |
A 1p/kWh saving on a 15,000 kWh household is worth £150/year. The right tariff choice can save considerably more.