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Offtaker of Last Resort (OLR): mandatory licensed suppliers

Content:
Guidance
Publication date:
Topic:
Electricity generation, Electricity supply
Industry sector:
Generation and Wholesale Market,
Supply and Retail Market
Scheme name:
OLR

List of mandatory licensed suppliers for Offtaker of Last Resort (OLR) year 12 and year 11.

Mandatory Licensed Suppliers OLR year 12

Below is a list of mandatory licensed suppliers in respect of the OLR year 12 running from 1 April 2026 to 31 March 2027.

British Gas Trading Ltd

Telephone number: 0175 349 4000  
Email: offtakeroflastresort@centrica.com 
Website: https://www.britishgas.co.uk/

EDF Energy Customers Ltd

Telephone number: 0208935 2724 and 020 8935 2580 
Email: export@edfenergy.com 
Website: https://www.edfenergy.com/wholesale-market-services/sell-energy/power-purchase-agreements

E.ON Next Energy Limited

Telephone: 0247 619 2000 
Email address: paul.mernagh@eon-uk.com 
Website: https://www.eonnext.com/

Npower Commercial Gas Limited

Telephone: 0800 669 6443 
Email address: ExportPricinginbox@npower.com 
Website: https://npowerbusinesssolutions.com/

Octopus Energy Limited

Telephone: 0203 389 5613 
Email address: ppa@octoenergy.com 
Website: https://octopus.energy/

Mandatory Licensed Suppliers OLR year 11

Below is a list of mandatory licensed suppliers in respect of the OLR year 11 running from 1 April 2025 to 31 March 2026.

British Gas Trading Ltd 

Telephone: 0175 349 4000
Email address: offtakeroflastresort@centrica.com
Website: https://www.britishgas.co.uk/

EDF Energy Customers Plc 

Telephone: 020 8935 2724 and 020 8935 2580
Email address: export@edfenergy.com
Website: https://www.edfenergy.com/wholesale-market-services/sell-energy/power-purchase-agreements

E.ON Next Energy Limited 

Telephone: 0247 619 2000
Email address: paul.mernagh@eon-uk.com
Website: https://www.eonnext.com/

Npower Commercial Gas Limited 

Telephone: 0800 669 6443
Email address:  ExportPricinginbox@npower.com
Website: https://npowerbusinesssolutions.com/

Octopus Energy Limited 

Telephone: 0203 389 5613
Email address: ppa@octoenergy.com
Website: https://octopus.energy/

Drax Energy Solutions 

Email address: compliance@drax.com
Website: https://energy.drax.com/