Biomass Suppliers List

The Biomass Suppliers List (BSL) was introduced by the Department for Business, Energy and Industrial Strategy (BEIS), formerly the Department of Energy and Climate Change (DECC), in April 2014. From 1st July 2021 the BSL is administered on behalf of BEIS by Woodsure.

What is the BSL

The BSL is a list of woodfuels that have proven they meet the eligibility requirements for the Renewable Heat Incentive (RHI) scheme. It enables RHI participants to demonstrate to Ofgem that the fuel they are using in their biomass boilers meets the sustainability criteria needed to claim their RHI payments.

Visit the BSL website

Fuel Quality and BSL

Since 1st April 2022, the fuel supplied to RHI participants has to be certified under a quality assurance scheme. There are currently two recognised schemes: ENplus® for pellets and Woodsure for all other woodfuels. 

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 impacted 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).

Woodsure is named in the legislation as one of the available Fuel Quality Certification schemes.

Apply now for fuel quality

If you have an existing or new BSL Application and require your biomass fuel to meet quality requirements please visit the BSL advice page.


Severn House

Unit 5 Newtown Trading Estate

Green Lane


GL20 8HD

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