E (Gas & Electricity) Tariffs & Rates

📅 Last updated: October 2026

About E (Gas & Electricity)

E, sometimes written as E (Gas & Electricity), is a British-owned energy supplier based in Birmingham. It was founded in 2014 and serves around 300,000 customers, offering an alternative to the larger, more familiar suppliers.

E is a prepayment specialist. Its focus is on keeping costs as low as possible for pay-as-you-go customers, who are often among those most likely to be in difficult financial circumstances. This single focus sets it apart from suppliers that treat prepayment as an add-on to a wider range of services.

E became a Which? Recommended Provider in January 2024, and it is a member of Energy UK’s Vulnerability Commitment, a voluntary set of principles to support people in vulnerable circumstances beyond what regulation requires. It also takes part in the Warm Home Discount scheme, which helps eligible customers with the cost of heating their homes.

E tariffs

E keeps things simple and offers a single prepayment tariff. You will need a prepayment meter to become a customer, and you top up before you use your energy. Here is a summary.

E does not currently offer any fixed rate tariffs. As with prepayment generally, this type of tariff can work out more expensive than paying by Direct Debit, so it is worth comparing to understand what you would pay.

Smart meters are available free of charge. E’s MySmartE app works alongside a smart meter, letting you see your live balance, top up on the go, track your usage over previous weeks and months, and set targets and alerts to help manage what you spend.

Support for prepayment customers

Because prepayment customers can be more exposed to running out of credit, E builds in a number of safeguards. All customers are entitled to £15 of emergency credit if they are unable to top up, and friendly credit hours mean you will not lose power during evenings, weekends and bank holidays when it can be harder to top up. With a smart meter, you also pay nothing on days you use no energy.

E also runs a Priority Services Register, which offers extra support to eligible households, for example where someone is a pensioner, is disabled, has a long-term illness, relies on electrically powered medical or mobility equipment, or has children under five. Support can include moving a hard-to-reach prepayment meter somewhere more accessible, a password scheme to confirm the identity of anyone visiting on E’s behalf, and a free annual gas appliance check, subject to eligibility.

E customer reviews

Independent ratings give a mixed picture. Citizens Advice, which rates suppliers on complaints handling and service, placed E 9th out of 20 suppliers in its most recent assessment, with an overall score of 3.22 out of 5, around the middle of the market. On the positive side, E is a Which? Recommended Provider, a status awarded for a combination of customer satisfaction and fair practices.

It is worth noting that E does not currently have a Trustpilot score to display, as Trustpilot removed its rating in 2026 after detecting fake reviews on the page. For that reason, it is best to weigh up the independent sources above rather than rely on Trustpilot for this supplier.

Expert view

Is E right for you?

E is likely to suit you if you have a prepayment meter and want a supplier that specialises in pay-as-you-go, with strong support features and no exit fees. Its emergency and friendly credit, Priority Services Register and Which? Recommended Provider status all point to a supplier that takes care of prepayment customers.

It is less likely to suit you if you want a credit account, a fixed tariff, or extras like solar and EV products, as E does not offer these. Prepayment can also cost more than paying by Direct Debit, so it is worth comparing against your usage before you decide.

Reviewed by our expert
Jim Pollard
Jim Pollard is Simply Switch’s energy and broadband specialist, helping consumers navigate the ever-changing utilities market with clear, practical advice. With a strong understanding of household bills, tariffs and switching opportunities, Jim focuses on helping people reduce costs, find better-value deals and make informed decisions around their energy and broadband services. His insight into switching trends and household utilities helps consumers make smarter choices with confidence and provides actionable insights that make managing everyday expenses simpler and more cost-effective.