The Biomass Suppliers List (BSL) is a list of  wood-fuel that has proven it meets the eligibility requirements for the Renewable Heat Incentive (RHI) scheme. It allows RHI participants to easily demonstrate to Ofgem that the fuel they are using in their biomass boilers meets the RHI Sustainability and Fuel Quality criteria required to claim their RHI payments.

The changes to the RHI regarding Fuel Quality for accredited Biomass Suppliers List (BSL) came into effect on the 1st of April 2022. The Fuel Quality legislation places requirements on both self-suppliers AND commercial suppliers (Producers, Traders and Producer-Traders). Visit the 'Fuel Quality' section in the 'About' tab to find out more. 

If your fuel is made from waste wood, guidelines can be found here. This is guidance to help you meet the requirements of the RHI regulations for registrants on the BSL for waste derived wood-fuel. Click here to view the guidelines.

New applicants

If you are looking to apply to the BSL, please read the application user guides on the Documents and Guidance page, to find out what type of application you should apply for. To apply to the scheme, click here to register.

We welcome any feedback regarding the application process. Please take a minute to complete our survey here

RHI participants

To locate your local BSL supplier, click here.

If you would like to know more about the BSL and the Renewable Heat Incentive, please click here

Suspicious Phishing / Spam emails, please be on your guard

Please be aware that the BSL Administrator will never send you an email with an embedded link to your invoice. If you suspect you have received a suspicious communication, purportedly from the BSL Administrator, we advise you not to click on the link or reply to the email.

Please contact the BSL helpdesk on 01684 215253 (Open Monday to Thursday, 9am to 5pm and to 4:30pm on Fridays) or click here to complete and enquiry form. If you have any concerns over the legitimacy of an email relating to the BSL.


Find a Fuel

Please enter your postcode to find a local supplier of BSL authorised fuels, or if you know the company name or BSL number, please enter that into the box below.

Registered Suppliers

If you are already registered on the BSL, please enter your email address and password below in order to gain access to your account.


If you have forgotten your password, please click here

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