Banner for 100Green

100Green Reviews 1,494

TrustScore 4.5 out of 5

4.6

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Considering 236 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the staff for their helpfulness, kindness, and professional attitude, making interactions pleasant and productive. Many people highlight the exceptional customer service, noting the personalized and understanding approach. The service provided is often described as excellent, with consumers appreciating the efficiency and ease of their overall experience, especially the quick response times to calls and emails. However, some people were dissatisfied with the pricing, finding their bills higher than expected or not as competitive as other providers. A few other people also felt that the company could be chaotic or had issues with communication regarding meter readings and account management, leading to some frustration and a perceived lack of care in certain situations.

What people talk about most

Customer service

Reviewers highlight positive aspects of customer service, frequently praising the helpfulness and efficiency... See more

Staff

People report positive experiences with staff, consistently praising their helpfulness, kindness, and... See more

Service

Reviewers express high satisfaction with the service, often highlighting its efficiency and helpfulness.... See more

Response time

Consumers generally report positive experiences with response times, highlighting prompt and efficient... See more

Price

Customers had ambiguous experiences with price. Many reviewers appreciated being contacted by the company to... See more

Reviews shaping this summary

Rated 5 out of 5 stars

I’ve just switched to 100 Green and had a great experience with their customer service. I got through to a real person straight away at 9am on a Monday, which was a pleasant surprise. Jill was re... See more

Company replied

Rated 5 out of 5 stars

I rang them up, a nice lady answered the phone (Sarah). My query was dealt with in seconds without asking me my second hamster's middle name, without endless keypad options that didn't apply, without... See more

Company replied

Rated 5 out of 5 stars

Very easy to make contact with, no waiting or multiple stages to go through. Professional agent who understood and answered my queries quickly. Great experience, which you can rearly say these days.

Company replied

Rated 5 out of 5 stars

Several things: first Billie Harding had a clear voice, so I didn’t have to ask her to repeat anything. Second, she sounded friendly and warm, and not as if it was a bother trying to sort out a small... See more

Company replied


Company details

  1. Green Energy Supplier
  2. Electric Utility Company
  3. Energy Supplier
  4. Fuel Supplier
  5. Gas Company

Written by the company

We are 100Green — an award winning energy supplier. We've been supplying renewable energy to homes across the UK since 2001. Each of our unique tariffs are designed to help you live more sustainably, with every drop of our renewable energy generated right here in the UK. We have real people here to talk and listen. No chat bots, no call queues. We’re ready to pick up the phone and answer your email, so you can get on with enjoying your day.

Award Winning Customer Service

Written by the company

We answer the phone when you call
Real people here to talk and listen. No call menus, no chatbots. We won’t ask for an upfront fee when you join and if you leave us for any reason, there are no exit fees to pay.

Contact info

Promotion box for 100Green

Energy filled with nature made with care

Choose an award winning, renewable tariff to suit your lifestyle.

4.6

Excellent

TrustScore 4.5 out of 5

1K reviews

5-star
4-star
3-star
2-star
1-star

Replied to 100% of negative reviews

Typically replies within 24 hours

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Great customer care

Excellent customer care staff response speed and quality

19 January 2026
Unprompted review
100Green logo

Reply from 100Green

Good afternoon - than you so much for leaving us a positive review. Great to hear that your happy with the service! Have a wonderful day. Amy

Rated 4 out of 5 stars

Extremely fast and excellent customer service even on a Sunday

Update: I had to dock 1 star because the information provided was not entirely correct leading to my incorrect hypothesis about the address lookup.
Apparently, almost all energy providers and comparison sites use the "meter profile class" to decide if a property is domestic or business. Except Uswitch and outfox who use the "Domestic Premises Indicator" to decide if a property is domestic or business. Fixing the Indicator resolved the issue.

Extremely fast and excellent customer service even on a Sunday. Speedy and concise answer to my question. Thanks Camille.
The problem was caused by apparently faulty address lookup systems at Outfox and Uswitch.
Those organisations will be receiving 1 star reviews.

18 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi Tarquin, we really appreciate you taking the time to leave your feedback! We know that energy questions don't always wait for Monday morning, so we’re glad we could provide fast and excellent service, especially on a Sunday. I'm glad Camille could help, and have a great week. Lewis

Rated 5 out of 5 stars

I had amazing customer service/care…

I had amazing customer service/care from a really helpful, kind and informative lady called Carina. She went above and beyond to rectify a discrepancy with my bill and to get me set up correctly.
Thankyou Carina, you deserve and should get a payrise.

16 January 2026
Unprompted review
100Green logo

Reply from 100Green

Dear John, thank you for the review. We are proud to have helpful and informative team members like Carina who go the extra mile to support our customers. We are very happy to hear your account is now set up correctly. Kind regards, Lewis.

Rated 5 out of 5 stars

Above an beyond

NoAbsolutely brilliant company who treat you like a person not a number , this company has put themselves out over an above what you'd expect all the staff are friendly and always there to help , highly highly recommended.10/10 I for one thank 100green for getting me out of energy trouble an setting me back on the right track without any stress, thankyou everyone at 100green , give yourselves a big pat on the back once again thankyou .

15 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi Warren, thank you so much for the 5-star review and the "10/10" recommendation. We pride ourselves on treating every customer like a person rather than a number, so hearing that you felt that personal touch means a lot to the whole team. We are delighted that we could help resolve your issue and get everything back on track. Have a great week! Lewis

Rated 5 out of 5 stars

Very helpful customer service

Have just moved over to this energy provider but had a dispute with the final bill from my previous supplier due to incorrect final meter readings. Anita was very helpful in getting this resolved and keeping me informed with what was going on.

15 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi Rowan, thank you for the lovely review! We’re happy to have you with us. It’s great to hear that Anita took the stress out of your move by handling your dispute, and we’ll make sure to pass your thanks on to her as well. Have a great day. Lewis

Rated 5 out of 5 stars

excellent service

great to speak to members of staff who help no matter what the issue is. very quick at answering calls and emails. excellent service overall, would recommend to anyone.

14 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi Katy, we really appreciate the recommendation! Our team strives to be very quick at answering calls and emails, no matter the issue. It’s great to hear that you had an excellent experience with us, and if you ever need anything in the future, don't hesitate to get in touch. Best wishes, Lewis.

Rated 5 out of 5 stars

Karina

Karina. Who I sensed from the way we spoke on the phone understood my situation.

15 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi Roy, thank you for the 5-star review! I'm glad to hear that Karina was able to help you. Providing great customer service is our top priority, and we will be sure to share your kind words with her. Have a wonderful weekend. Best wishes, Lewis.

Rated 5 out of 5 stars

Amazing Customer Experience with Linda!

I spoke with Linda and she was SO helpful and extremely kind under very stressful circumstances. A true professional! And asset to 100green, I have just moved into a new flat and look forward to dealing with them!!!

14 January 2026
Unprompted review
100Green logo

Reply from 100Green

Thank you for the amazing review! We know that moving into a new flat can be a very stressful time, so I'm happy to hear that Linda was there to provide professional support. We’ll make sure she sees this shout-out and all the best in your new home. Kind regards, Lewis.

Rated 5 out of 5 stars

Clean Green Machine

Hi, great company and lovely people. It's nice to talk to the same agent each time rather than someone in a call centre. When ever I've had a query, it's been dealt with quickly and efficiently. It's nice to be a Green with so little effort!

13 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi Nigel, thanks for leaving us a review. That's the benefit of having a team that takes the time to get to know our customers! It’s what makes us unique because every time you call, we're happy to help, no matter the question. I'm glad we could help you this time. Have a lovely rest of the week. Kind regards, Lewis.

Rated 5 out of 5 stars

Linda was really helpful and super…

Linda was really helpful and super friendly. Great customer service

13 January 2026
Unprompted review
100Green logo

Reply from 100Green

Thank you for sharing your experience, Jonny! We love hearing that Linda provided you with friendly and helpful service. Our team strives for excellence, and we appreciate you taking the time to recognise her hard work. Have a great rest of your week. Lewis

Rated 5 out of 5 stars

Quick and stress free

Always quick to pick up phone and very helpful and friendly

12 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi M M, thank you for the feedback! I'm glad we could provide you with quick and friendly service. Making the process 'stress-free' is always the main thing we aim for. Have a wonderful rest of the week. All the best, Lewis.

Rated 3 out of 5 stars

Not-so-smart meters

We had a very long (7 months) and problematic switch-over to a Smart Meter. On the plus side, 100Green were really easy to contact and speak to direct throughout; and they kept an amazingly close watch on everything that was going wrong. The personal touch was really appreciated. On the minus side, everyone seemed to be on a wild goose chase -- led by SMS metering -- and strangely misinformed about the compatibility of various meters with the Economy 10 set-up which surely many storage-heater users still rely on. There was a lot of false internal communication going on behind the scenes. But it all came right in the end (I think, so far...). 5 stars to 100Green team members; 1 star to SMS (despite their friendly and helpful individual engineers) and the whole push to roll out smart meters prematurely.

9 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi C G Perriam, thanks so much for the honest feedback!

We’re really glad you enjoyed the personal touch from our team — we try our best to be there if things get tricky. We apologise for any issues you may have experienced with your Economy 10 setup. Feedback like this help us to improve and provide a better service for all of our customers.

Happy to hear it's all sorted now! Just get in touch if you ever need anything else. All the best. Lewis

Rated 5 out of 5 stars

Very helpful with my BIll

Very helpful with my BIll, Lisa has been amazing she explained to me in a way I have understood and made my life much easier

9 January 2026
Unprompted review
100Green logo

Reply from 100Green

Thank you for the wonderful feedback, Ignatious! We're glad Lisa provided you with the help you need. We pride ourselves on making things as simple as possible for our customers. If you ever need anything else, just get in touch. Kind regards, Lewis.

Rated 5 out of 5 stars

Carina Jones was excellent in…

Carina Jones was excellent in supporting my query today. It's rare to get customer service of this quality. First, I was put through to someone almost immediately, without the usual being put on hold and/or automated options. Carina was informed, helpful and clear. We communicated by phone and then by email as a document needed to be sent. She then followed up promptly with a phone call to complete the request. It was all seamless and fast. I couldn't ask for a better service. Thank you.

7 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi E M Quinn, thank you for the wonderful review! We’re glad Carina could provide you with fast and helpful service. It was a pleasure assisting you, and we appreciate you taking the time to share your feedback. Have a great rest of the week. Lewis

Rated 5 out of 5 stars

Immediate and efficient response to an…

Immediate and efficient response to an email query about our account. Customer service is excellent as is the company's ethical and environmental standards.

6 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi EB, thank you for the review. We are glad we could resolve your account query. We truly appreciate your support of our values and look forward to hearing from you again soon, should you ever need us. Have a wonderful day! Lewis

Rated 5 out of 5 stars

Great Customer Service.

I cannot fault the Customer Service Dept. who dealt with my query professionally and promptly. Special thanks to Inma Azunma.

4 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi Jan, thank you for your feedback. We are happy to hear that our team was able to resolve your query quickly and professionally. We will be sure to pass your special thanks along to Inma —she is a valued member of our team, and she’ll be so happy to know she made a positive impact! Lewis

Rated 5 out of 5 stars

Spot on

I rang them up, a nice lady answered the phone (Sarah). My query was dealt with in seconds without asking me my second hamster's middle name, without endless keypad options that didn't apply, without a lengthy explanation that Covid (it is 2026) has affected the service. Marvellous. Exactly how phoning a company should be.

6 January 2026
Unprompted review
100Green logo

Reply from 100Green

Thank you for such a brilliant review! It certainly gave us a good laugh this morning; we promise we’ll never ask for your 'hamster history'. We’re glad Sarah was able to help you and that you enjoyed the more direct service. We look forward to being just as speedy next time you call. Have a great rest of the week. Lewis

Rated 5 out of 5 stars

Excellent customer service

Excellent customer service, I have already recommended this company in the past and will continue to do so.

5 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hi MW, thank you so much for the 5-star rating! We are thrilled to hear that you’ve had a great experience with our team. Word-of-mouth recommendations are very valuable for us, and we really appreciate you spreading the word about our service. Lewis

Rated 1 out of 5 stars

100Green is a terrible company

100Green is a terrible company. We have been with them for less than a year and are already changing providers. The issues we have had in the last few months is beyond ridiculous. As stated we are changing providers and this is due to the fact we have told them we have solar panels but every time we get a bill there never seems to be anything indicating that we are getting money back/saved from the solar panels. I must have told them this 3/4 times in the space of less than a year and still having issues. We were told that the company themselves will take meter readings and if there is any issues they would let us know and we can provide a meter reading. On 3 different occasions (including the most recent bill) our bill has doubled from what it usually sits at, when I’ve phoned and asked we are usually told that this is due to a faulty connection in our house and it’s caused wrong meter readings. If they knew we had a faulty connection, why haven’t they told us. We were told someone would be in touch to try and solve this connection issues but shocker, no one has ever been in touch. With our most recent bill and the fact we are changing providers, our bill has doubled and it’s again due to a faulty connection. The reason we chose 100Green in the first place was due to competitive pricing but since we have had a “faulty” connection this really hasn’t worked out that way. Having looked at our bill, they are trying to say we have used in 3 days what we would usually use in 2-3 weeks. I also remember when we first began with 100Green our energy bill was almost 4x what it was said to be and when I called up, I was told that was just the way it was. However, I got in touch with the providers before 100Green and we found out they had used meter readings months before we had made the change. This diff result in us getting our money back but too many times has this company been so dodgy.

4 January 2026
Unprompted review
100Green logo

Reply from 100Green

Hello BS, we’ve been trying to locate your account to help resolve these issues for you. I have sent an email requesting a few more details so we can investigate this further. If you could please reply to that message with any additional information, it would be greatly appreciated. Kind regards, Lewis.

Rated 3 out of 5 stars

Service team are great and really…

Service team are great and really helpful but the company feels chaotic. As with others we had a rocky start. They ported over our neighbours meters to our account despite her refusing the first request and ignoring the second. It took 2 months to sort out.
Then there's the (completely useless) new mobile app which doesn't seem to work on either Android or iPhone. No data shows up and it's not possible to click into anything to get info or log meter readings. It's been like that for 3 months. Not confidence building.

30 December 2025
Unprompted review
100Green logo

Reply from 100Green

Hi Jemma,

Thank you for sharing your feedback! I’m really pleased to hear that Sarah has provided such helpful support.

Regarding our new mobile app, thank you for your patience while we smooth out the initial "teething" stages. Our tech team is working hard on continuous updates to ensure a great experience for you.

If you have any other questions or need anything else, please don't hesitate to reach out.

Best regards

Lewis

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look