Iresa Energy was launched in Nottingham in 2016. It was known for offering the cheapest tariffs on the market. It was also known for being one of the worst energy companies in the UK. Iresa ceased trading in 2018 after Ofgem forbade the supplier from taking on new customers.

Domestic market: Great Britain Cheap energy tariffs
Number of customers: 100,000 Poor customer service
Electricity sources: Undisclosed Large number of complaints
Selectra score: Ceased trading in 2018

Iresa Energy customers were transferred to Octopus Energy in August 2018.

FAQs for Iresa customers

1) What happened to Iresa Energy?

Iresa was forbidden from taking on any new customers in March 2018, but the supplier didn’t officially cease trading until 27 July of the same year.

2) When was my energy supply transferred?

Customers were transferred from Iresa to the new supplier at midnight on 1 August 2018. If you have not selected a new tariff since the transfer, you’re likely on the new supplier’s most expensive plan.

3) My Iresa account was in credit. Will I get my money back?

Octopus will honour any credit balances for existing and old customers. You should have received a final bill from Irsea to confirm your current balance, which was then transferred to the newly appointed supplier.

4) Who do I contact about my energy supply?

Former Iresa customers will need to contact Octopus Energy to speak to a representative about their account. For general inquiries or help choosing a new tariff, customers can also give us a call on 020 3936 0059. Lines are open Monday through Friday from 8:30 am to 9 pm.

5) Will I have to pay more for my energy now?

Iresa customers should have received their new rates from Octopus. If you have not signed up for a new tariff, you are likely on a standard variable tariff with the new supplier (which tends to be the most expensive). We recommend you compare tariffs in your area to find the best rate.

Get free energy advice and switch to a great offer!Our trained advisors can find you a cheaper offer in just a few minutes. Call 020 3936 0059 or get a free callback now.

Iresa Energy customer reviews: the worst in the UK

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Iresa Energy customer reviews are mostly complaints. On customer review site Trustpilot, Iresa has an overall rating of just 1.5 out of five stars. Of the customers who left reviews, 87% rated the company as either poor or bad.

Most of the complaints on customer review sites reference Iresa’s long call-wait times. Some customers reported having to wait for more than two hours on the phone before finally getting through to a representative. Many of the Iresa Energy customer reviews even accuse the staff of putting customers back on hold once they finally got through, only to have the call cut off.

The reviews show that customers also complained about inaccurate billing, and more specifically having their direct debit increased even when the account was in credit.

“Can’t comment on customer service as they have failed to provide any since Sept [2017]. Very good and quick at unjustifiably increasing DD by 20% when account is already in credit though.”

Claire RydingTrustpilot review

In the months before Iresa ceased trading, Citizens Advice ranked Iresa as the UK’s worst energy supplier for customer service, right behind Toto Energy (which has since closed) and Robin Hood Energy. Iresa scored just 0.35 out of five stars. According to Citizens Advice, Iresa’s score is the “worst-ever complaints score recorded” by the organisation.

From January to March 2018, Iresa received over 9,000 complaints per 100,000 customers. That’s five times more than the next worse energy supplier, which was Toto Energy with 1,800 complaints. After this quarter, Iresa was forbidden by Ofgem from taking on new suppliers. The company was also no longer allowed to take one-off payments or increase direct debits.

Iresa took a number of measures to try and get the ban lifted, such as extending its call centre hours, improving its call waiting times and responding to customer emails more quickly.

However, these measures were not enough. In June 2018, Ofgem stated that the provisional order would remain in place until it felt that there had been considerable change. Iresa Energy announced it would cease trading shortly after.

Iresa Energy tariffs and prices

Iresa offered four versions of its Flex tariff at a time. It was available as dual fuel or electricity only, which was then broken down into standard or Economy 7. Iresa tariffs generally changed the number of the name over time, such as the Iresa Flex 4 became the Eresa Flex 5.

Originally, the tariffs all had a direct debit payment method, until Iresa launched its Flex 5 pay-as-you-go tariff for customers with prepayment meters shortly before it closed. Customers that wanted paper bills had to pay a £10 annual fee.

Iresa Energy tariffs were among the cheapest on the market. If you have not compared and switched tariffs in the past year, you are likely on a standard variable tariff with the new supplier, Octopus Energy.

A medium-sized household in London that uses the national average consumption levels of energy would spend around £82 per month on the new supplier's standard variable tariff. To avoid high energy prices, you need to compare suppliers and their rates in your area. Call us today at Selectra for a free comparison of the energy tariffs available where you live. We offer select deals that are not available on provider websites.

Energy Deal of the Month (January 2021)
Energy Offer Estimated Monthly Cost* Details
Selectra Deal of the Month
Selectra Logo
Gas & Electricity: £76*
  1. Rates protected for 1 year
  2. Supplier with 4/5 score on Trustpilot
  3. Leave tariff 49 days before end without penalty
Call & Sign Up Today: 020 3936 0059 020 3936 0059
*Monthly price estimates are provided for guidance only and are not indicative of your specific energy costs. They are based on average consumption figures provided by Ofgem. To get accurate energy cost estimates for your home call 020 3936 0059 for free.

How do I access my Iresa Energy login?

If you’re trying to access the Iresa Energy login page, you’ll find that it no longer exists. You will need to access the login page with Octopus Energy in order to manage your energy account online.

To access the login page with the new supplier, former Iresa customers should go to the Octopus Energy homepage and click on where it says Account in the top right corner. To set up your new account, click on where it says Set up my online account at the bottom of the page.

You will need to provide your email address. The supplier will then send you an email with a link to create a password and finish setting up your account.

For help logging in, check out our Octopus Energy login guide.

Did Iresa Energy use smart meters?

electricity meter

Iresa Energy had begun rolling out the first generation of smart meters (SMETS1) to its customers. Smart meters are convenient for customers because they automatically submit meter readings to the supplier. Customers can also keep track of their energy usage in near real time.

Unfortunately for customers with these Iresa Limited smart meters, the meters lose the smart functionality when switched to a different supplier. Customers who had smart meters installed by Iresa must submit monthly meter readings to the new supplier in order to ensure accurate billing.

If you would like to have a smart meter installed, you should contact your new energy supplier to book an appointment. If the new supplier is not installing smart meters, we recommend switching to a supplier that is. Most companies will even do it for free.

How do I contact Iresa Energy?

Are you trying to contact Iresa Energy? Former Iresa customers will need to contact Octopus, the newly appointed supplier, to speak with a customer service representative about their energy account. Visit our Octopus Energy contact guide for current details.

Iresa Energy contact numbers
Department Phone number Opening hours
Customer service (now Octopus) 0330 808 1080 Monday to Friday: Monday to Friday: 9am-5pm
Power cut 105 24/7
Gas emergency 0800 111 999 24/7
Energy Ombudsman 0330 440 1624 Monday to Friday: 8am-8pm, Saturday: 9am-1pm

Talk to a real person - FastYou won't have to talk to a machine or wait on hold for hours. Our free service will put you through to a real person without the wait. Call 020 3936 0059 or get a free callback now.

What is the Iresa Energy contact number for complaints?

If you had an open complaint with Iresa, the new supplier was not required to take it on. If you escalated the complaint to the Energy Ombudsman (or a different third party) you should have received the resolution by now.

If you need to make a complaint to your new supplier, you can contact Octopus on 0330 808 1080. Representatives are available Monday through Friday from 9 am to 5 pm.

You can also contact us at Selectra on 020 3936 0059 to get expert energy advice for free. Our call-wait time is usually just a few seconds. Lines are open Monday through Friday from 8:30 am to 9 pm.