Bulb Energy Review

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Last updated: 22nd November 2021

Bulb Energy review summary

8Expert Score
Bulb Energy

One of Bulb’s selling points is their simplicity. They offer only one tariff. This means that you know you are always on the cheapest rate the company has available, even if it is variable and can therefore change at any time.

  • 100% green energy with vari-fair tariff
  • No exit fees
  • One of the biggest suppliers outside the 'Big 6'
  • Only one tariff to choose from
  • Not the cheapest

Our Bulb energy review: Bulb are another of the recent new entrants to the UK gas and electricity supplier scene. Launched in May 2016 by friends Amit and Hayden, the company has managed to amass over 1.5 million customers.

One of Bulb’s selling points is their simplicity. They offer only one tariff. This means that you know you are always on the cheapest rate the company has available. The downside is this is a variable tariff, so it can change at any time. To be fair the Bulb, they do promise to give their customers one month notice of any price changes (with no exit fees if you choose to leave). You can read our full Bulb Energy review below.

Who are Bulb Energy?

Amit and Hayden met in 2013, working in the energy industry. The duo saw first-hand that the customer service at some of the biggest companies could be improved and decided it didn’t have to be like that. The two friends felt that there was a gap in the energy market for an energy supplier that keeps value for money in mind and customer satisfaction at heart.

As a result, Bulb Energy was born.

They raised £1.3 million in seed funding from friends and family to get the idea off the ground. Their first customer signed up on 27th August 2015 (this was actually one of the co-founders Amit!)

Since then Bulb have signed up over 1.7 million new members and become one of the UK’s fastest growing energy suppliers. They have also recently launched in America too and are slowly spreading around the world.

What tariffs do Bulb offer?

Bulb have the one of the simplest approaches to tariffs we’ve reviewed. They only have one energy tariff for pay monthly customers! This is a variable tariff (the vari-fair tariff) that offers 100% renewable electricity and, if you opt for dual fuel, 100% carbon neutral gas. This does mean that you have no decisions to make in terms of tariff, making the process pretty straight forward. You will also never need to worry that you could get a cheaper tariff whilst sticking with the same provider (like can happen with one of the ‘big 6’ energy companies for example).

The downside to this one tariff approach is there is nothing on offer for those that prefer fixed tariffs. This means you are susceptible to any prices rises that happen whilst you are with Bulb. You also don’t have the security of knowing exactly how much your tariff will be for the next year that you get with a 1 year fixed tariff, for example. To Bulb’s credit though, they will give you at least one months notice if prices are going to change.

How do Bulb compare on price?

Let’s face it, this is probably the first thing you want to know in a Bulb energy review. Bulb could be a great company but if it’s going to cost you a premium for the same electricity you could get elsewhere, you’re probably going to look somewhere else.

They claim they could save you up to £95 per year on your energy bills. Bulb used to be one of the cheapest suppliers, but more recently this hasn’t been the case. They are often in the middle of the pack (as shown in the chart below from their website). Still, they are generally cheaper than a Big 6 standard tariff and could save you money if you switch. They received 3 stars out of 5 from Which? for value for money.

Bulb price comparison

What is Bulb’s customer service like?

Bulb’s customers service offers you a range of different ways to contact them. Which? gave them a 4 out of 5 for customer service overall. They found that it took 9 minutes and 56 seconds on average to get through by phone.

They found it took 5-10 minutes to get through by live chat. So this might be a better option for you, particularly if it isn’t a complicated query.

Citizens Advice found much better call waiting times (2 minutes 51 seconds). They rated Bulb only 3/5 however for overall customer service, making them the 12th placed energy supplier.

Finally you have their community forum, this is a great source of info and a good way to chat with other ‘Bulbers’. This is worth it if you have a more general question and you think it may have already been asked/answered but isn’t probably the best route for specific account questions.

In terms of energy bills, Citizens advice found 97% of customers had an accurate bill at least once a year. Which? gave them a 4/5 for Bill accuracy and 4/5 for bill clarity.

What is Bulb’s app/website like?

The website portal is very similar to the app but currently gives you a bit more detail. It shows you your previous readings alongside your predicted usage throughout the year. As you go through the year these predicted amounts then get changed for your actual amounts for that month. The app doesn’t have this last bit included but like the website allows you to update your details and gives you details of how to get help if you need to. The added benefit of the app is you can take a picture of your meter and submit this straight through the app rather than having to take down the details and submit it through the website.

What do other Bulb Energy reviews say?

Reviews can be a tricky business, where do you look for a start? Do you just look at independent, singular reviews like this or do you look at aggregates like Trustpilot? We’ve collated them in one place for you to look at:

  • Bulb Energy currently have a 4.6/5 rating on TrustPilot (over 72,000 reviews) putting them at 16 out of 76 in the ‘Energy supplier’ category
  • They were rated as the 10th best energy company by Which? (Out of 25)
  • They were ranked 12th by Citizens Advice (Out of 35)

Bulb energy fake reviews?

Bulb Energy have managed to amass an incredible number of reviews in such a short time on Trustpilot, most of these have also been 5-star reviews. From this it would be natural to be suspicious, there are plenty of companies that try to manipulate reviews! Once you start reading the reviews however you will quickly realise the reason for the volume of reviews is due to people sharing their review link in the hope someone will sign up through it and they will get credit. The Bulb reviews from these people therefore may be dubious but they aren’t fake, they are from real customers.

How green is Bulb’s energy?

Where an energy suppliers energy comes from is a key issues nowadays. Consumers are much more conscious of renewable sources and this is often a key factor in their decision making. Bulb are big on green energy. They provide their customers with 100% renewable electricity and 100% carbon neutral gas.

Bulb buy their energy from independent renewable generators all around the United Kingdom. They often have direct relationships with the generators to purchase their output and to cover shortfalls, they purchase renewable energy on the wholesale market. Currently they have over 30 green energy generator sites listed on their website.

Bulb’s referral program – Get Bulb Energy credit

You may have seen Bulb’s referral links scattered around the internet in other Bulb energy reviews. Their program is simple, every time you recommend someone they get up to £50 (£25 for a single switch, £50 for a gas AND electricity switch) account credit once they switch and you get up to £50 cashback. This is actually the best way to join and offers you more back than both the MoneySavingExpert energy club and often the cashback sites.

Once you’re a member, it’s a great way to try and get your energy paid for a year by recommending as many of your friends as you can!

Luckily, Bulb are a decent energy company to be recommending too, so you shouldn’t get complaints from your friends.

How to switch to Bulb Energy – Bulb Energy review video

The process is really easy, they claim it takes 30 seconds to get a quote and then after this it takes about another 5 minutes to sign up. All you really need to provide is your address details and your direct debit details and wait for 3-4 weeks for the switch to complete. We’ve put together a video together below taking you through the whole process:

Below are a few quick questions you may need answers to along with our Bulb energy review:

Do Bulb accept pre-payment meters?

Yes, they offer a ‘Pay as you go’ tariff. This has the same principles as the ‘vari fair tariff’, but for pre-payment customers.

Do Bulb offer smart meters?

Yes, Bulb Energy are currently in the process of rolling out smart meters to new and existing customers.

Do they accept Economy 7?

Yes, their standard tariff is available for Economy 7. When going through the quote process, click on ‘Refine your quote’ at the bottom and you can add that you have have an Economy 7 meter.

Are they signed up to the Warm Home Discount?

Yes, Bulb energy are currently signed up to the Warm Home Discount.

Are they signed up to the Energy Switch Guarantee?

Yes, Bulb Energy are signed up to the Energy Switch Guarantee. Citizens Advice found that 99.8% of switches completed within 15 days. You can find out more about what the Energy Switch Guarantee is here.

What billing options are available?

You can only be billed via Direct Debit. Bulb will estimate what your annual usage will be and therefore work out what your energy bill will be for the year. This amount with be divided by 12, so you are paying an equal amount each month. This means over the summer months you will build up a surplus in your account to cover the increased bills you will receive in the winter.

Do they charge exit fees?

No! Bulb don’t charge you any fees if you choose to leave. If you aren’t happy with the service or with a recent price increase then you can easily switch away at no extra cost.

Will they offer to pay a customer’s exit fees when they join them?

Yes, if you are charged an exit fee to leave your existing supplier then Bulb will pay these for you when you join. There is a cap of up to £60 per fuel however.

Do they offer any incentives to customers to refer friends/family?

For any friends or family you refer to Bulb energy you can receive up to £50 credit in your account. Once you have signed up to Bulb they will supply you with a referral link which you can pass to your friends and family to sign up through.

What happens if you move home whilst with them?

In your Bulb account management screen you will find a ‘Moving Home‘ tool. Using this you can let Bulb know your new address and they will start the moving process for you.

Can you get cashback when joining Bulb?

Yes, you can get cashback when joining Bulb energy both through Quidco and Topcashback. However, at the time of writing you can only get £21 for a single switch and £42 for a dual fuel switch. You can also get £25 cashback through the MoneySavingExpert energy club. The major caveat here is that all these are exclusive, you can’t therefore get cashback from Quidco, MSE and referral credit, you have to choose one.

How to contact Bulb Energy

You can contact Bulb customer service by calling: 0300 30 30 635

Email them through: help@bulb.co.uk

Or use ‘BulbBot’ for live chat on their website.

Opening hours:

Monday – Friday 9:00am – 5pm

Their address is:

Bulb, 155 Bishopsgate, London, EC2M 3TQ






Rob runs Energy-Review.co.uk. The project initially began when he switched energy suppliers for the first time and found there wasn't a website that provided simple, data backed reviews on all the suppliers available. Since then, Rob has spent considerable time looking at all publicly available data about each supplier and writing reviews using this information. Reviews are updated as regularly as possible and any data is backed up by a source where necessary. If you find any issues, please use our contact form to let us know.

  1. Bulb are forever trying to Hike my DD on the grounds that I will consume more from heating my house in the winter. Twice in the last two months I’ve had to explain I use oil heating. Which is why for the last 5 years this has not been the case. I never run the account in debit yet they expect me to have about £180 credit as a standard rather than just accepting I’ll pay what I owe. The only reason for this that I can think of for this is, they must be short on cash and are trying to lean on customers to pay upfront to tide them by. They started out good, but now I’d say avoid.

  2. 20/09/21. A company that has gone from fair to bad very quickly. Customer service answers quickly but doesn’t solve any problems, I’m in credit with my gas account and have now changed supplier, asked them to put credit onto my electric supply, so for no reply try again Wednesday.

  3. Dishonest, exploitative and generally unpleasant. Charged peak rate for low rate night time usage having accepted previous tenants economy 10 bill. When challenged, avoidant and then aggressive and threatening. My worst experience of an energy company by far.

  4. Do not go near this company

    after 8 months of constant battle they still cannot get the most simple thing correct, the account name and address, they were supplied this and they did at one point have it correct and then they changed it back, now its with the ombudsman and Bulb is saying they will send in locksmiths to gain entry to fit a prepay meter to an address they do not supply and send in debt collectors to collect money form people who do not live at the correct address, bulb is totally incompetent, this will be going to solicitors very soon to take action against Bulb. KEEP AWAY FROM BULB

  5. Shockingly bad……
    I joined up as they said they would remove a pre-payment meter and install a monthly Direct debit smart meter. (always had DD in previous property)
    After going thru the hassle of having time off work for this to happen they have now said that they wont change over to DD after hours of complaints and time wasted.
    I even offered to leave a deposit in their account until they where happy with the DD setup !!!
    Keep putting the prices up, really bad customer service.
    The Bulb App doesn’t work and I now have to go online to top up this smart meter which is a pain in the rear or go to the local shop (five miles away).
    Have now swapped supplier as the stress of it all is just not worth the hassle.
    It’s no wonder they are voted worst supplier consistently !


  6. Customer service is awful. They have said >5 times they will send me a Utility Statement via email but nothing has come and after communicating to two different “customer service” employees via email, both have stopped replying before the issue has been resolved.

  7. they have lied to me (and the family i got to switch to bulb) about price increases and decreases recently, misquoted both gas and electric standing charge and price per KWh to make the increases look less, and also make it look like they were reducing gas prices, it was all lies, increases are more than they said, and there was no reduction in price for gas (even though they admit that wholesale prices have been reduced). I didnt receive a bill for September and after weeks of chasing them for up to date invoice, they still havent done anything, as other reviewer said, bad customer service and untrustworthy.

    They are also hiking up prices as they want to invest in tech firms in America in Texas, not a place I want my money to be going, and I really dont want my prices going up so they can fund tech firms anywhere when they cannot get their own tech to work properly. Their only business is to provide billing for our energy usage, if they cant do that, i too dont think they will be around for long!

  8. No good , bad customer service , dont think they will be around much longer or i wont . very untrustworthy .

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