
3 February 2021
Green Energy UK
Green Energy UK says it aims to make renewable energy mainstream. Find out what customers think of its service and pricing, plus whether it’s the best gas and electricity company for you.

In this article
As the name suggests, Green Energy UK sources all of its electricity and gas from green and renewable sources.
Electricity comes from hydropower, solar panels, wind and biomass. It buys directly from generators in the UK. Its gas is 100% ‘green’ gas from anaerobic digestion (where micro-organisms break down organic matter without oxygen to produce methane and biogas).
It says it aims to make renewable energy mainstream and to offer competitive prices.
Established in 2001, it's among the oldest energy firms outside the traditional biggest six and was the first energy supplier to launch a tariff using a smart meter to charge customers different electricity rates depending on the time of day. Called TIDE, it costs less for electricity used overnight and four times more at peak times.
None of Green Energy UK's tariffs have exit fees.
Compare gas and electricity prices using Which? Switch to see if you could save money with Green Energy UK.
Green Energy UK customer score
Green Energy UK came joint 12th out of 25 energy companies rated by 7,460 members of the public in the annual Which? energy companies satisfaction survey. Utilita also came 12th.
Customers were most positive about its billing.
Green Energy UK score breakdown
The graphic below shows the breakdown of Green Energy's score in our latest survey. Scroll down to read our verdict on this energy firm, and to find out more about its prices.
Find out how Green Energy compares with other energy firms in our guide to the best and worst energy companies.
Which? verdict on Green Energy UK
Green Energy is included in our energy companies survey results for the first time this year and it's kicked off to a reasonable start, scoring 68% and just about ranking in the top half of the table, based on the feedback of its customers.
Customers gave it an impressive four out of five star rating for its billing accuracy. Only seven companies received the full five star rating, including the best energy firm in our survey (Outfox the Market).
If you're not a fan of complicated and jargon-filled bills, Green Energy could be for you. It received a four star rating for clarity, which suggests Green Energy UK sends out clear and concise billing.
Unfortunately we didn't get enough responses to rate Green Energy UK for its customer service and how it deals with complaints.
Pros: It offers 100% renewable energy
Cons: Other energy companies are rated higher for value for money
Green Energy UK electricity sources
Want to find out which energy firm is the cheapest for you? Use Which? Switch to compare gas and electricity prices.
Energy company reviews
- 1.Avro Energy
- 2.Boost Energy
- 3.Bristol Energy
- 4.British Gas
- 5.Bulb Energy
- 6.E
- 7.Ecotricity
- 8.EDF Energy
- 10.Eon
- 11.Green Energy UK
- 12.Green Network Energy
- 13.Npower
- 14.Octopus Energy
- 15.Outfox the Market
- 16.Ovo Energy
- 17.People's Energy
- 18.Pure Planet
- 19.Sainsbury's Energy
- 20.Scottish Power
- 21.Shell Energy
- 22.So Energy
- 23.SSE
- 24.Utilita
- 25.Utility Point
- 26.Utility Warehouse

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