Welcome to the Biomass Suppliers List


Please be aware that the BSL Portal will be offline from 5.00 pm Thursday, 18th July 2024 to 5.00 pm Sunday, 21st July 2024 [BST] for planned maintenance.


The Biomass Suppliers List (BSL) is a list of woodfuel 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 criteria required to claim their RHI payments.

Fuel Quality Requirements

BSL authorisation does not guarantee the quality of the fuel as it is not a quality scheme. Early in 2021 legislation was introduced that made a number of changes to the Renewable Heat Incentive. The changes to the RHI which impact upon accredited Biomass Suppliers List (BSL) fuel suppliers came into effect on the 1st April 2022. The legislation places requirements on both self-suppliers AND commercial suppliers (Producers, Traders and Producer-Traders). Visit the Fuel Quality page to find out more about the legislative requirements and take action to ensure your fuels comply. 

New applicants

If you want to register on the BSL, please read the Documents and guidance to find out what type of application you should apply for. When you are ready to apply to the scheme, click here to register tab.

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

Registered Suppliers

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

Need to reset your password? Reset password here.