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Flow Energy - 2018 Reviews, Login, Tariffs & Contact

Flow Energy is a UK energy provider founded in 1998 and is based in Ipswich. They are a relatively small but fast growing company providing energy to over 250,000 homes. Their energy mix has a focus on renewables, with 50% of energy coming from renewable sources. Apart from providing energy they have developed some innovative products such as the Flow Energy Boiler and a range of Smart Home products to help reduce your energy bills.

Login to your account

Existing customers of Flow Energy with an online account can login to their account and check their energy usage history via the link below.

Simply enter your email and password to login to their self-serve web portal. If you have forgotten any part of your login details, you can click the relevant links on the page to retrieve or reset your credentials.

Login to your account

Unfortunately at the moment Flow Energy don't have a mobile app.


A blonde woman looking very happy
Flow Energy's rating is five out of five stars from over 1,000 reviews.

Flow Energy is highly rated on Trustpilot and Citizens Advice for their outstanding customer service. They are only one of two companies to be reviewed as a Which? recommended provider for quality service.

In 2018’s Which? Survey of the best energy companies, Flow received an average score of 77% (positive) from almost 9,000 people participating, beating all the Big Six companies.

Flow is in second position, with 4 out of 5 stars in value for money and accuracy and clarity in billings, a position which it shares with another independent company.

The survey reviews energy providers using 4 different subjects that Which? believe that consumers value most. They are: customer service; value for money; accuracy and clarity in billing; and helping you to save energy.

Flow Energy also has fantastic call waiting times. They respond to customer service calls in an average of 1.2 minutes and sales calls in 55 seconds. Unlike other suppliers, which often have a huge disarity in the times between the two types of calls, Flow Energy answers its customer service calls almost as fast as its sales calls. This indicates that they value their current customers as much as aquiring new ones.

Their email reponse rate is also good answering emails in an average of about 4 days. This is much faster than the majority of companies on the market at the moment.

You can see the result of the survey in the table below. Which? have also revealed that Flow Energy resolves 21% of complaints within two days which is quite low in the industry. Couple that with the fact that they receive the fewest complaints (per 1000 customers) of any energy provider and that wait time seems a lot slower. However the fact that they did get the fewest relative number of complaints means that if you’re a Flow Energy customer you will most likely have less chance of contacting them with a complaint.

Area of performance
Star rating
Customer service and complaints handling
Value for money
Bills (accuracy and clarity)
Helping you save energy
Customer score

Electricity bills can sometimes be difficult to understand. Don't you wish they could be written more clearly and understandably so you can easily tell how much you're spending and where your energy comes from? Flow Energy were rated favourably by Which? stating that their bills “are very clear” and listed it as one of the positive aspects of being a customer with them.

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News: Flow Energy Sells out to Co-op

Purple Coop energy logo
Co-operative Energy have bought flow for 9.25 million pounds.

Since before 2017 Flow Energy had been having financial problems due to the looming government price cap, stiff competition from new independent suppliers and increases in wholesale prices. The group made an overall loss of £9.2 million in 2016.

In May 2017 they were put up for sale but were saved by a huge injection of money from Palm Ventures, an American investment firm, who invested 29 million in the struggling company in a bid to increase the number of customers.

However, the investment wasn't enough to save the firm whose 130,000 customers were bought for 9.25 million pounds.

Flow Energy will still operate as a separate brand but will be part of the Co-operative Group.

Co-op Energy has said its acquisition of Flow Energy is “an opportunity to grow the co-operative movement within energy”.

Co-op Energy is very familiar with this kind of takeover, after taking on 160,000 customers in 2016 from GB Energy when the small retailer went bust.

The Co-op has stated that it will be "business as usual" for the staff and customers of Flow Energy but we will have to wait to see if this will negatively affect prices as Flow Energy has historically been very cheap whereas Co-operative Energy have higher prices.

Business Energy Tariffs

Flow Energy has energy tariffs that cater for the energy needs of businesses, but it doesn’t have tariffs that are available exclusively to businesses. Instead its tariffs are available for anyone to buy, households and businesses alike.

If you have a business and are searching for a new Flow Energy business tarrif, you can contact them directly via the number in the contact section below. Unfortunately at present, Selectra does not offer comparisons on business energy tariffs, but we'd be happy to help you with any queries that you may have.


If you'd like to contact Flow Energy for general enquiries or regarding one of their tariffs or offers, you can use the number provided below. It’s always faster to speak to a human and according to the Which? review of Flow Energy you will get a much faster response by calling their contact number than by emailing them. Remember, in order to get a real comparison of how much you could save, give us a call or click here. To get a better idea about what they have to offer you, you can visit Flow Energy’s website to browse the tariffs that they currently have available. Alternatively you can click here to go straight to their quotes page and get an estimate based on your usage and postcode.

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Flow Energy Contact Number Please check with your provider if you don't know how much a call will cost. 0800 092 0202 *Monday to Friday: 8am-8pm

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Felaw Maltings 48 Felaw St Ipswich IP2 8PN

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Enquiries outside the UK

If you're currently outside of the UK and wish to contact Flow Energy you can do so on the following number. Please be aware that calls are charged at the overseas rate.

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Enquiries Outside the UK Contact Number Please check with your provider if you don't know how much a call will cost. +44 2039 486 818 *Monday to Friday: 8am-8pm

Flow Energy Boiler

Flow Energy has developed a boiler that is installed in your house or business, and like a conventional boiler, provides heating and hot water. However, unlike a combi boiler, it also supplies electricity. It generates the electricity through a process called MicroCHP (combined Heat and Power), that produces a continuous supply of low carbon electricity producing electicity at a low cost and with low carbon emissions.

Flow Energy Boiler

The smart boiler produces low carbon electricity in your home and can feed it back to the grid. Source: Flow Energy

Flow’s boilers were originally manufactured by Jabil, one of the world's leading technology companies. Jabil currently employ over 150,000 staff in 23 countries and have a yearly revenue of $18 billion. Flow are now manufacturing their own combined heat and power (CHP) boilers for domestic households. CHP boilers heat your water and also generate electricity to light your home, which makes you eligible for the government Feed in Tariff (FIT).

The Flow boiler is the same size as a traditional combi boiler. However, it is possible to get Flow Boilers that have a higher output to generate all the energy you need for your home or business. As well as being green, it’s also economical. If you generate more electricity than you use, you can sell that electricity back to the national grid. Like any boiler however, they do require servicing. Flow Energy recommend that you get your boiler serviced every year in order to ensure its safe running and prevent the build up of problems that, whilst not problematic, could lead to long term damage if not serviced.

Smart products

The company launched a range of smart products for the home in 2016. They include a thermostat, smart plugs and energy consumption monitor that are designed to connect with your WiFi so they can link with your smartphone and computer. So you can monitor your energy usage through your mobile or computer from anywhere even when your not in the house. However, you must be conected to the internet to do so.

Flow Energy Smart Thermostat
Flow Energy's Smart Termostat allows you to monitor the temperature and control your heating remotely. Source: Flow Energy

They also have additional features that help you save energy by monitoring your energy usage and optimising it. The smart thermostat allows you to control your heating via an app on your smartphone wherever you are. So if you’re going to be home late, you can use the app on your smartphone to make sure your heating comes on a bit later. This will prevent you from heating your home unnecessarily and at the same time save you money.

The smart plugs allow you to control anything that’s plugged in from your smartphone using an app. You never have to worry about leaving the iron or coffee machine on again as you can turn them off through the app so you don’t have to be in the house.

The smart plugs work simply, you plug the device into the socket in your house (or anywhere else for that matter), connect it up to the Wifi, and finally, plug in your device or appliance (anything that uses a plug) that you want to control via the smart plug. Now you can control that device through the smart plug using the app on your smartphone. You can turn the device on and off remotely, be it from the house or anywhere you have an internet connection. So you may want to turn the lights on before you arrive home.

Furthermore, you can also set a timer and schedule the smart plug so it turns your devices on at certain times of day, great for when you’re on holiday, to make it look like someone is at home by scheduling the lights to come on at intervals and turning on the radio or TV. If you have many devices, you can name them so you can stay on top of which device is which.

They also come with a smart function that helps you to reduce your energy bill and save electricity. All smart plugs come with a “stand-by stop” function that turns off devices that are left on standby at night saving electricity and therefore saving you money.

If you put your mobile on to charge before bed, they normally get fully juiced within 2 hours and then it will continue to draw power for another 4 hours. You can use the smart plug to shut it off automatically when you sleep saving wear on your mobile phone battery and reducing your energy bills.


Flow Energy was founded in 1998 in Ipswich, UK. It started supplying energy to UK households in April 2013. In that time Flow Energy has quickly grown to supply energy to 250,000 homes throughout the UK.

Flow Energy promotes itself as an ‘energy technology company’ with a focus on saving money for the consumer and being as green as possible. They have developed a micro-combined heat and power boiler.

Tony Stiff, the chief executive of Flow Energy, pointing at a large screen
Chief executive Tony Stiff. Source

Flow Energy are now manufacturing their own combined heat and power (CHP) boilers for domestic households. CHP boilers heat your water and also generate electricity to light your home, which makes you eligible for the government Feed in tariff.

Their focus on green energy is backed up by the the fact that most tariffs also come with the option of upgrading so that all the energy you receive in your home comes from renewable sources. This means 100% of the electricity going to your home is being generated by renewable sources.

In 2016 Flow Energy launched smart products for all of your home devices to be controlled and monitored via a smartphone app or online. These products include smart plugs, smart thermostats and energy consumption meters, giving their customers better control of their energy usage and hopefully saving them money.

Market Share

Flow Energy supplies energy to over 250,000 UK households and over 5 years of operation, it has built up a 8.3% share in the smaller energy suppliers’ market in the UK.

Since 2012, the turnover of the company has increased, and in 2016, it rose to £100 million, a £60 million rise on 2015.

Flow Energy have a 5 year wholesale energy partnership with Shell. This allows them to access collateral-free trading and provides hedging capability, which, in short, reduces the amount of capital investment required when acquiring new customers and protects from risk in a volatile wholesale market. Shell have 10% invested in the profits of Flow Energy. Since 2016, Shell have made £681,000.

In order to supply the electricity demand for a continually growing customer base, Flow Energy in 2017 purchased £21 million worth of energy, £5 million up from the previous year.

(Market share based on current customer base and with 51.49 million UK gas and electric customers)

Energy Mix

All UK energy providers are required to disclose the sources of where their energy comes from so you can make a better decision when switching. Energy can be produced from a variety of sources (also called the fuel mix), such as coal, natural gas and nuclear, or environmentally friendly sources such as renewables. Flow Energy’s highest percentage of energy comes from renewables at 50%. If you want 100% of your electricity at home to come from renewables, most of Flow Energy's tariffs have the option to upgrade and get 100% of your energy from renewable sources. You can find a breakdown of fuel sources in the chart below.

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