Ceased trading · September 2021

Enstroga UK archive

Enstroga UK ceased trading on 29 September 2021. Its customers were transferred to E.ON Next under Ofgem's Supplier of Last Resort scheme. This page is kept as a historical record.

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Founded 2016 About 6,000 customers at closure Nottingham

Ceased trading · 29 September 2021

Enstroga UK no longer supplies UK households

Energy-crisis failure — Enstroga UK could not break even after the 2021 wholesale gas price spike. Customers were transferred to E.ON Next under Ofgem's Supplier of Last Resort (SoLR) scheme. This page is kept as a historical record. Information presented below was accurate at the time of original publication.

Founded

2016

Years on the UK market

Customers

About 6,000 customers at closure

Households served

About

Who is Enstroga UK?

Registered as Enstroga UK Ltd, Enstroga UK uses this legal name for Ofgem licence filings, contracts and any formal communications. The trading name customers see on bills is the shorter, more recognisable form.

The company is headquartered in Nottingham, where it runs its senior management, customer operations and regulatory liaison with Ofgem.

Enstroga UK was founded in 2016. The supplier operated under a domestic-supply licence until its closure, with a track record of customer service and billing publicly documented for the years it traded.

Enstroga UK is part of the Enstroga Group (Berlin, Germany) group, which provides shared governance, financial backing and a broader pool of expertise in trading, hedging and regulatory work.

The company is regulated by Ofgem, the UK's energy regulator, and its complaint handling falls under the Energy Ombudsman alternative dispute resolution scheme.

Who owns Enstroga?

CEO: Jens Müller-Bennerscheidt
Ownership: Privately owned
Listed: No
Parent: Enstroga Group (Berlin, Germany)

Timeline

Enstroga UK — key dates

A short timeline of the Enstroga UK brand — founding, milestones, regulatory events and the closure that brought it to an end.

2016
Enstroga UK begins trading from Nottingham — UK arm of Berlin-based Enstroga group, rebranded from "Comet Energy".
2021
Wholesale gas prices triple. Enstroga UK ceases trading in September 2021; Ofgem appoints E.ON Next as Supplier of Last Resort for all ~6,000 customers.

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Common questions

Enstroga UK — frequently asked questions

Energy-crisis failure — Enstroga UK could not break even after the 2021 wholesale gas price spike.

Existing customers were transferred to E.ON Next under Ofgem's Supplier of Last Resort (SoLR) scheme — supply was never interrupted.

Your supply has not been interrupted: under the SoLR scheme, your supply is automatically handed to the successor supplier. Log in to the successor's online portal as soon as possible to set up your account, confirm your bank details and download any final Enstroga UK statements while the legacy website is still online.

You are not required to pay any exit fee to leave the deemed tariff. Once your account is set up, compare current deals through Selectra to find a cheaper plan that fits your usage.

Yes. Customer credit balances on accounts at the date of cessation are protected under Ofgem's SoLR scheme. The successor supplier (E.ON Next) is required to honour your credit balance. Confirm the balance in writing within the first 30 days to avoid disputes later.

Yes — outstanding debts owed to Enstroga UK transfer to the administrator of the company's estate, not the SoLR. You may receive a written demand for the outstanding amount from the administrators. Verify any demand against your final Enstroga UK statement before paying.

You can complain about the conduct of Enstroga UK (mis-selling, billing errors, customer service) to the Energy Ombudsman, even after the supplier has ceased trading. For complaints about the SoLR transfer itself (delays, incorrect tariff), the route is the same — Ombudsman first, then Ofgem.