Ecotricity: A Deep Dive into the UK's Original Green Energy Supplier
In an era where environmental consciousness is paramount, UK consumers are increasingly looking for energy suppliers that do more than just power their homes. They want a provider whose values align with their own. Ecotricity, a pioneer in the green energy movement, has been championing this cause since its inception.
Based in the heart of Gloucestershire, Ecotricity was established by green entrepreneur Dale Vince with a mission that extends beyond simply supplying power. This article explores the company's unique approach, its range of tariffs, its customer service reputation, and what truly sets it apart in the crowded UK energy market.
1. Who is Ecotricity? More Than Just a Supplier
Founded in 1995, Ecotricity holds the title of Britain's very first green electricity company. From the outset, its philosophy has been to challenge the status quo of the fossil fuel-dominated energy industry. The company is responsible for building the UK's first megawatt-scale windmill and has continued to innovate with grid-scale solar parks.
Three decades on, Ecotricity has now built 28 green sites across Britain, comprising 24 wind parks, three sun parks and one green gasmill, with further projects in development. The company operates on a unique 'bills into mills' principle. This means it channels revenue from customer payments directly into researching and constructing new renewable energy sources. This model funds everything from maintaining its network of wind and solar farms to developing cutting-edge solutions like green gasmills, which aim to produce sustainable gas from grass. By choosing Ecotricity, customers are actively investing in the future of Britain's green energy infrastructure.
2. Understanding Ecotricity's Energy Tariffs
Ecotricity aims to keep its tariff structure straightforward, offering a few clear options for different types of households. As of mid-2026, their primary offerings are:
| Tariff Name | Tariff Type | Key Feature | Best For |
|---|---|---|---|
| 1 Year Fixed Green (EcoFixed) | Fixed Rate | Unit prices and standing charges are locked in for 12 months from the start date. | Customers seeking price stability and protection against market volatility. |
| 1 Year Fixed EV | Fixed Rate (Time-of-Use) | Offers a window of cheaper electricity overnight, typically midnight–5am in winter and 1am–6am in summer. | Electric vehicle owners who can schedule their car charging for off-peak hours. |
| Green Electricity/Gas (Out of Contract / SVT) | Standard Variable | Prices can fluctuate with the wholesale market. Is not bound by the Ofgem price cap. | Customers who prefer flexibility and have actively chosen this non-capped tariff. |
| Pay As You Go | Prepayment | Energy is paid for in advance by topping up a prepayment meter, with options to manage top-ups via key, tag or app. | Households that want to closely manage their energy budget without credit checks. |
A note for EV drivers: availability of the 1 Year Fixed EV tariff has fluctuated over the past year, with the tariff periodically closed to new customers while Ecotricity manages capacity. It's worth checking directly with Ecotricity for current availability before assuming this option is open. When live, the EV tariff has offered overnight unit rates around 8p/kWh for car charging, all sourced from 100% green electricity.
It is also worth noting that Ecotricity applies an exit fee of £100 per fuel for customers who leave a fixed-term tariff (such as EcoFixed or the EV tariff) before the end of their contract term, though no exit fees apply if you leave within the standard 14-day cooling-off period. By contrast, the standard variable Out of Contract tariff carries no exit fees at all, reflecting its flexible, non-fixed-term nature.
3. The Ecotricity Price Cap Exemption Explained
In a move that sets it apart from almost every other supplier, Ecotricity holds a permanent exemption from the energy price cap for its standard variable tariff (SVT), sometimes referred to as its Out of Contract tariff. This exemption has been granted by the regulator, Ofgem, in recognition of the company's substantial and ongoing investment in building new green energy infrastructure.
What does this mean for customers? It allows Ecotricity to set the price of its 'Green Electricity/Gas' SVT above the level of the national price cap. This is conditional on the basis that customers have made an active choice to be on this specific tariff, understanding that their higher payments are directly contributing to the development of new renewable projects across the UK. Customers who fall out of a fixed-term contract without actively choosing this tariff, however, are typically protected by the standard price cap rules until they make a new active choice.
4. What Are Ecotricity's Green Credentials?
Ecotricity's commitment to sustainability remains its core identity. The company's electricity supply is 100% green and is also certified by The Vegan Society, as it is generated without involving animal by-products.
Unlike many suppliers who simply buy renewable energy certificates on the open market, Ecotricity invests heavily in generating its own power. It builds, owns, and operates its own sun and wind parks across Britain. This hands-on approach ensures a genuine and measurable contribution to the UK's renewable capacity.
On the gas side, Ecotricity's supply is currently a blend of green gas and conventional fossil gas, reflecting the reality that fully green gas remains a relatively scarce resource across the UK market. To address the carbon footprint of this fossil component, Ecotricity also invests in direct carbon removal projects within Britain through its Carbon Bank initiative, alongside continuing to develop its green gasmill technology, which aims to create sustainable gas from grass and other organic matter. Together, these represent Ecotricity's next frontier: greening the gas grid in the same way it has already helped to green the electricity grid.
Ecotricity has also been recognised as a Which? Eco Provider for several consecutive years, an accreditation based on a range of sustainability criteria including the proportion of self-generated renewable energy and broader environmental initiatives.
5. Ecotricity Customer Experience and Reviews
A company's mission is only part of the story; customer service is equally crucial. As of early 2026, Ecotricity holds a rating of around 4.2 out of 5 on the review platform Trustpilot, described as "Great" or "Excellent" depending on the snapshot, based on the feedback of over 6,000 customers. The volume of reviews is more modest than for the largest suppliers, which means the overall score can shift more noticeably with short-term spikes of feedback.
The positive reviews frequently highlight the quality of its UK-based customer service team, quick response times on the phone, and a sense of pride in supporting the company's environmental work. Several reviewers specifically praise the team behind Microtricity for resolving export payment queries.
On the other side, some negative feedback points towards occasional technical issues with the account management app, billing delays or estimated bills going unresolved for extended periods, and, in some cases, a feeling of disconnect with the company's public political stances. Notably, Which?'s most recent customer satisfaction survey placed Ecotricity among the lower-scoring suppliers for customer service in a direct customer poll, even though Which?'s own behind-the-scenes assessment of Ecotricity's customer service setup and processes rated it among the highest in the market. This gap suggests that while Ecotricity's underlying systems and policies are strong, individual customer experiences can be inconsistent, particularly around billing and account issues.
6. Additional Services and Features
Beyond standard energy supply, Ecotricity offers several other services:
- Microtricity: For households with their own solar panels or other microgeneration technology, Microtricity provides a way to sell surplus energy back to the grid. This is managed through the Smart Export Guarantee (SEG) scheme, allowing homeowners to earn money from the green energy they produce.
- Smart Meters: Ecotricity is actively rolling out free smart meters to customers through specialised third-party installation partners. New customers can typically expect to be contacted about installation within around six weeks of joining, though waiting times can vary depending on location and demand.
- The Ecotricity App: A dedicated mobile app allows customers to manage their account on the go. Its features include submitting meter readings, viewing statements, making payments, and accessing emergency contact information. Some users have reported the app being unreliable or prone to crashing at times, an area Ecotricity has acknowledged and continues to work on.
- Energy Efficiency: The company's focus is primarily on large-scale generation projects rather than offering domestic energy efficiency products like insulation or heat pumps. Their contribution to a greener future is at the infrastructure level, although their wider partnerships with sustainable companies touch on related areas of green living.
7. How Does Ecotricity Compare to Other Suppliers?
Ecotricity's unique 'bills into mills' business model makes direct comparisons difficult. While a large supplier like EDF Energy is also a major generator of renewable energy, Ecotricity's structure as a smaller, mission-driven company provides a different proposition. Its tariff pricing is generally aligned with or slightly above the broader market, with the notable exception of its price cap-exempt variable tariff, and competitive suppliers such as Octopus Energy frequently undercut Ecotricity on headline price.
The closest like-for-like comparison is arguably with Good Energy, another long-established green supplier with a similar ethos of funding new renewable generation through customer bills. For consumers, the choice often comes down to priorities. If the primary goal is to minimise the bill, cheaper suppliers are readily available. But if the goal is to support a company that is demonstrably building new renewable assets in Britain, and to fund initiatives like the Carbon Bank that tackle the carbon footprint of gas supply, Ecotricity stands almost in a category of its own.
8. Frequently Asked Questions (FAQs)
Is Ecotricity genuinely green?
Yes, in the sense that matters most: its electricity is certified 100% green and vegan, and the company's model is built around using customer bills to fund and construct new wind and solar generation facilities in the UK. Its gas supply, however, remains a blend of green gas and fossil gas, with the carbon impact of the fossil portion offset through investment in UK-based carbon removal via the Carbon Bank.
Will I pay more with Ecotricity?
Generally, yes, to some degree. Ecotricity is rarely the cheapest supplier on the market, and its fixed-rate tariffs typically sit at or above the level of more competitively priced rivals such as Octopus Energy. Its standard variable tariff is exempt from the Ofgem price cap and can be more expensive still, reflecting the premium for funding new green energy projects.
Is the Ecotricity EV tariff currently available?
Availability has varied, with the 1 Year Fixed EV tariff periodically closed to new customers. Prospective customers should check directly with Ecotricity for the latest status, as well as the current off-peak charging window and rate, since these have changed between winter and summer periods.
How can I get in touch with Ecotricity?
Customers can contact the Ecotricity support team via email at home@ecotricity.co.uk or by telephone on 0345 555 7100. The customer service team is available seven days a week.
