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UK domestic energy supplier

Ecotricity UK

Founded in 1995 and headquartered in Stroud, Gloucestershire, Ecotricity supplies gas and electricity to UK households. Compare tariffs, customer service, complaints and ownership below.

Founded 1995 Over 200,000 households Stroud, Gloucestershire

Founded

1995

Years on the UK market

Customers

Over 200,000 households

Households served

About

Who is Ecotricity?

Registered as Ecotricity Group Ltd, Ecotricity uses this legal name for Ofgem licence filings, contracts and any formal communications. The trading name customers see on bills is the shorter, more recognisable form.

The company is headquartered in Stroud, Gloucestershire, where it runs its senior management, customer operations and regulatory liaison with Ofgem.

Ecotricity was established in 1995. A longer track record means more years operating under Ofgem rules and a wider history of customer feedback, billing systems and regulatory interactions.

Ecotricity operates independently — it is not part of a larger corporate group. This typically means faster decision-making but less wholesale-market scale.

The company is regulated by Ofgem, the UK's energy regulator, and its complaint handling falls under the Energy Ombudsman alternative dispute resolution scheme.

Fuel mix

Ecotricity electricity fuel mix (2024)

Ecotricity supplies 100% green electricity (wind, solar, hydro) and carbon-neutral gas. The supplier is the only one in the UK to generate Vegan-Society-certified vegan electricity.

  • Renewable 100%
  • Nuclear 0%
  • Natural gas 0%
  • Coal 0%
  • Other 0%

Current tariffs

Ecotricity tariffs: as of May 2026

Unlike most UK suppliers, Ecotricity holds a permanent derogation from the Ofgem Energy Price Cap. The Green Variable tariff is therefore not capped each quarter — Ecotricity sets its own prices and reinvests the margin into new renewable generation. Headline unit rates and standing charges vary across the 14 UK distribution regions; Ecotricity publishes the full per-region grid in its May 2026 tariff sheet (PDF). For the live rate that applies at your postcode, get a quote on Ecotricity's site.

Ecotricity domestic and business tariff unit rates as of May 2026
Tariff Type Unit rate

Green Variable

Ecotricity's default tariff and the only one that does not require a smart meter. Unit rate and standing charge can move with the market — but, because Ecotricity sits outside the...

Term: No fixed term · no exit fee

Variable p / kWh

1 Year Fixed

Locks in today's unit rate and standing charge for 12 months — a hedge against further Ecotricity price increases over the year. Requires a smart meter, or a written agreement to i...

Term: 12 months · exit fee £75/fuel

Fixed p / kWh

1 Year Fixed EV

A time-of-use fixed tariff designed for EV drivers: a flat off-peak rate of 8 p/kWh from 00:00–05:00 (winter) / 01:00–06:00 (summer), with a higher peak rate the rest of the day. S...

Term: 12 months · exit fee £100/fuel

Fixed p / kWh

Pay As You Go

For households on a prepayment meter: top up your credit before you use the energy. No fixed contract and no exit fee, so you can switch supplier or move to a credit meter at any t...

Term: No fixed term · no exit fee

Prepayment p / kWh

Regulator

Who regulates Ecotricity?

Independent watchdog responsible for licences, price approvals and customer-protection rules.

Complaints escalation (ADR)
Energy Ombudsman

If Ecotricity does not resolve your complaint within eight weeks (or issues a deadlock letter sooner), you can refer it free of charge to the Energy Ombudsman. The Ombudsman's decision is binding on the supplier.

Timeline

Ecotricity — key dates

A short timeline of the Ecotricity brand — founding, milestones, regulatory events.

  1. 1995

    Ecotricity is founded by Dale Vince with a single wind turbine — the world's first green energy company.

  2. 1996

    Ecotricity delivers its first green electricity to Cheltenham and Gloucester College.

  3. 2007

    Wins the World's Leading Green Energy Prize at the Ashden Awards, presented by Al Gore.

  4. 2010

    Launches the UK's first 100% Green Gas tariff.

  5. 2011

    Launches the Electric Highway — Britain's first motorway network of EV charging points.

  6. 2017

    Awarded the World's Best Green Energy Brand at the Energy Branding Conference.

  7. 2019

    Ecotricity becomes the first UK energy company to declare a climate emergency, committing to carbon-neutral Britain by 2025.

  8. 2021

    Partners with Geothermal Engineering Limited to sell UK geothermal electricity for the first time.

Save up to £300 per year
Independent comparison

Is Ecotricity the cheapest option for your home?

UK households can save up to £300 per year by switching to a supplier whose tariffs fit their actual gas + electricity usage. Compare against suppliers regulated by Ofgem in under two minutes.

Common questions

Ecotricity — frequently asked questions

Ecotricity is regulated by Ofgem and operates under a standard domestic-supply licence. Whether it is the right supplier for your household depends on your unit rate, standing charge, customer-service rating and any add-on services (HomeCare, Warm Home Discount eligibility). Always quote your annual kWh consumption when comparing prices — the headline rate alone does not predict your bill.

Switching to Ecotricity takes about five working days under the new Faster Switching service, and your supply is never interrupted. Sign up online with your address, postcode and a recent meter reading. Ecotricity will arrange the transfer with your current supplier, including the final meter reading and the closing bill.

The UK grid is supplied by a mix of gas, nuclear, wind, solar, biomass and imports. Ecotricity declares its fuel mix annually under Ofgem rules — see the fuel-mix section above for the current figures. Some tariffs are sold as 'green' or '100% renewable', which means the supplier matches your annual consumption with renewable electricity certificates (REGOs) rather than physically delivering renewable electrons to your home.

Most UK fixed-term tariffs include an exit fee (typically £25-£75 per fuel) if you switch before the contract ends. You can switch without an exit fee in the last 49 days of your contract. Variable tariffs (including the default tariff capped by the Energy Price Cap) have no exit fees.

You can reach Ecotricity on 0145 375 6111, Mon-Fri, 9 a.m. to 5 p.m.. For a full breakdown of phone lines (emergency, prepayment, HomeCare, bereavement, Welsh, Relay UK), see the Ecotricity contact page.

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