With the April 2026 cap at £1,641 and July forecast at £1,837+, getting on the right tariff matters more than ever. Here's the honest comparison of what's available.
1. Octopus Energy — Best overall
Multiple Which? recommended supplier awards. Best app. Widest smart tariff range. £50 referral credit. No exit fees. For households with solar, EVs, or batteries, Octopus is unambiguously the best choice.
Typical saving: £200–£400/year on Agile vs standard tariff.
2. OVO Energy — Best alternative
Good app, competitive rates, 100% renewable. Limited smart tariff range compared to Octopus. Solid choice for standard households without energy tech.
3. British Gas — Best for traditional households
Strongest fixed-rate options and HomeCare boiler insurance. App and smart tariffs are behind Octopus. No referral programme. The choice for households who want familiarity.
4. EDF — Best for long fixed deals
Most competitive 12–24 month fixed rates. GoElectric tariff for EV owners. Limited smart tariff range otherwise.
| Supplier | Smart tariffs | App | Referral | Best for |
|---|---|---|---|---|
| Octopus | Market-leading | Excellent | £50 | Solar/EV/battery/flexible |
| OVO | Limited | Good | Occasional | Standard households |
| British Gas | Very limited | Basic | None | Traditional/HomeCare |
| EDF | Limited | Average | None | Fixed-rate seekers |
