Drax Biomass Conversion (Units 1-4)
Drax Power Station, North Yorkshire, England · 2013–2018 (First unit converted April 2013, fourth unit converted August 2018) [1] [2]
The judgement call
Account-gated at launchDrax became the largest decarbonisation project in Europe by converting four of its six units from coal to biomass, significantly reducing its carbon emissions and contributing to the UK's renewable energy targets. The conversion allowed Drax to move away from coal-fired generation ahead of the government's 2025 deadline. [1] [5]
Key engineering challenges
Adapting existing coal-fired boilers to efficiently burn wood pellets, requiring significant modifications to fuel handling, storage, and combustion systems. - Managing the logistics of sourcing, transporting, and storing large quantities of sustainable biomass (wood pellets). - Ensuring compliance with environmental regulations for biomass combustion and emissions. - Integrating new biomass infrastructure with the existing power station operations without significant disruption.
Project facts
- Client / owner
- Drax Group
- Lead contractor
- —
- Lead designers
- —
- Project type
- upgrade
- Scale
- Four 645 MW units converted from coal to biomass; total capacity of 2.58 GW from biomass. [4]
- Disciplines
- mechanical; electrical; process; civil; environmental; project management
- Standards & frameworks
- UK environmental regulations, EU Industrial Emissions Directive.
Sources: Drax: Drax closer to coal-free future with fourth biomass unit conversion (https://www.drax.com/press_release/drax-closer-coal-free-future-fourth-biomass-unit-conversion/) [1] - IMechE: Coal to Biomass Conversion (https://nearyou.imeche.org/docs/default-source/Power-Industries-Division-NW-Centre/imeche---biomass-conversion-lecture-v1.pdf) [2] - Ember Energy: Drax biomass subsidies in 2024 (https://ember-energy.org/latest-insights/drax-biomass-subsidies-in-2024/) [3] - Biomass Magazine: EC approves state aid for third Drax unit conversion (https://biomassmagazine.com/articles/ec-approves-state-aid-for-third-drax-unit-conversion-14030) [4] - Drax: Drax ends half a century of coal-fired power generation (https://www.drax.com/press_release/drax-ends-half-a-century-of-coal-fired-power-generation/) [5]