CompareFairlyBest Energy Suppliers in the UK 2026
Our pick : Octopus Energy (91/100) · Cheapest : Utilita Energy · Best value : Octopus Energy
In short
This comparison covers 10 energy suppliers across 10 criteria: Annual Price Estimate, Exit Fees, Contract Length, Tariff Type, Green Energy Percentage, Fuel Mix (Gas). Octopus Energy comes first with 91/100, driven by Customer Service Rating (100/100) and Exit Fees (100/100). The cheapest option is Utilita Energy. Sourced data: 8/10 options; the remaining values are estimates, flagged as such.
Comparison table
| Criterion | Octopus Energy | So Energy | E.ON Next | Utilita Energy | ScottishPower | Good Energy |
|---|---|---|---|---|---|---|
| Annual Price Estimate (GBP) | 1150 | 1170 | 1180 | 1100 | 1220 | 1300 |
| Exit Fees (GBP) | 0 | 0 | 0 | 0 | 20 | 0 |
| Contract Length (mois) | 12 | 12 | 12 | 12 | 12 | 12 |
| Tariff Type | Fixed | Fixed | Fixed | Prepayment | Fixed | Fixed |
| Green Energy Percentage (%) | 100 | 100 | 60 | 15 | 100 | 100 |
| Fuel Mix (Gas) | Biomethane | Biomethane | Natural Gas | Natural Gas | Natural Gas | Biomethane |
| Fuel Mix (Electricity) | Renewables (Wind, Solar, Hydro) | Renewables (Wind, Solar, Hydro) | Renewables (Wind, Solar, Hydro) | Natural Gas | Renewables (Wind, Solar, Hydro) | Renewables (Wind, Solar, Hydro) |
| Customer Service Rating (/5) | 4.5 | 4.2 | 4.0 | 3.6 | 3.8 | 4.3 |
| Online Account Management | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Smart Meter Availability | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Frequently asked questions
Best Energy Suppliers in the UK : Which is the best choice?
Octopus Energy ranks first in our comparison (91/100), ahead of So Energy. The ranking is based on Annual Price Estimate, Exit Fees, Contract Length, Tariff Type - every value is sourced and no placement is paid for.
Best Energy Suppliers in the UK : Which option is cheapest?
The most affordable option is Utilita Energy.
Best Energy Suppliers in the UK : What criteria is the comparison based on?
The comparison is based on: Annual Price Estimate, Exit Fees, Contract Length, Tariff Type, Green Energy Percentage, Fuel Mix (Gas).
Best Energy Suppliers in the UK : Is the data up to date?
Yes: data collected {age}, with every value sourced and refreshed automatically.
Best Energy Suppliers in the UK : Is the ranking influenced by advertising?
No. No position is sold: the order depends only on objective criteria. Some links may be affiliated, with no effect on the ranking or the data.
Methodology and transparency
Ranking: options are sorted on measured, sourced criteria. No position is ever sold, and no advertiser pays to appear here.
Scope: this comparison is not exhaustive. It presents the options our sources document, not every offer on the market.
Earnings: some outbound links may be affiliate links that earn us a commission. This never affects the ranking, the scores or the data.
Data: every value is linked to its source and refreshed automatically; the collection date is shown.