Cheapest Energy Suppliers in London

Targeting Lower Energy Bills in the UK

London residents from Westminster and Camden to Hackney and Southwark are moving to modern alternatives like E.ON Next to avoid legacy costs and lock in greener, cheaper tariffs.

Calculate Your Potential UK Savings

Based on current July 2026 price cap + £50 credit. Actual savings vary by usage and tariff.

UK Energy Market Update – July 2026

The Ofgem price cap rose on 1 July 2026 to £1,862 for the average dual-fuel household on Direct Debit (13% higher than the previous quarter’s £1,641). Unit rates are now approximately 26.11p/kWh for electricity and 7.33p/kWh for gas (national averages). Fixed and renewable tariffs from suppliers such as E.ON Next can still beat the current price cap.

Switching to E.ON Next gives you 100% renewable electricity, excellent customer service, and the £50 welcome credit — all while often beating the price cap.

How to Switch Energy Supplier in 3 Simple Steps

1. Enter your postcode and compare the best London deals (takes 60 seconds).
2. Choose a tariff — we recommend E.ON Next for green energy + £50 credit.
3. Your new supplier handles everything. No disruption to your supply.

The whole process is free, takes 10–21 days, and you can save £100–£300+ per year.