An Exploration of BECCS and DACCS as Carbon Removal Strategies

Why is carbon removal important?

The Need for Carbon Removal 

Rising global carbon dioxide levels have led to a plethora of environmental and societal problems, such as extreme weather events, rising sea levels and biodiversity loss. Businesses are committing to decreasing their greenhouse gas (GHG) emissions in alignment with limiting the global temperature rise to 1.5°C above pre-industrial levels, while others are striving towards carbon neutrality by offsetting their emissions. Although efforts to reduce carbon emissions remain paramount, the magnitude of existing carbon in the atmosphere necessitates approaches like carbon removal. These projects can function as a vital bridge, facilitating the transition towards net zero and supporting the achievement of vital climate goals and targets.

How can sustainable biomass deliver negative emissions?

Bioenergy with Carbon Capture and Storage (BECCS)

What is direct air carbon capture and storage?

Direct Air Carbon Capture and Storage (DACCS)

DACCS, on the other hand, takes a direct approach to carbon removal by capturing carbon dioxide directly from ambient air in the atmosphere rather than from a specific source.

DACCS technology utilises specialised equipment that employs absorbent materials such as chemicals and solvents, to directly capture carbon dioxide from the air. These materials are processed to separate the carbon dioxide, which is subsequently compressed and stored underground in geological formations, similar to BECCS. DACCS, however is an energy intensive process, which can limit the benefits of its net emissions reduction. 

What is the difference between BECCS and DACCS?

A Comparative Analysis: BECCS vs. DACCS

When comparing BECCS and DACCS, it is clear that both technologies offer unique benefits. BECCS leverages existing biomass resources, contributing to rural economies and sustainable land use. Meanwhile, DACCS has the advantage of being location-independent and can be deployed in regions with limited biomass availability. An integrated approach that combines the strengths of both technologies can yield a more comprehensive and robust carbon removal strategy.

How can we responsibly deploy BECCS and DACCS?

Environmental and Social Considerations

The environmental and social implications of BECCS and DACCS projects are of paramount importance. Ethical biomass sourcing, sustainable land-use planning, and community engagement are crucial to ensure that these technologies responsibly deliver positive outcomes without causing harm. Striking a balance between carbon removal and the preservation of ecosystems and communities is key to their responsible deployment.

How can this contribute towards net zero?

The Role of Carbon Removal in the Transition to Net Zero

Carbon removal projects play a pivotal role in the broader climate strategy, working in tandem with carbon emissions reduction and renewable energy adoption. It’s vital to note that carbon removals, particularly through methods like BECCS and DACCS, are necessary to reach net zero status. However, while essential, these methods are significantly more expensive than other offset projects and are not readily available in the current market.

Nevertheless, the significance of BECCS and DACCS cannot be overstated; they represent higher-quality projects compared to other offsets, providing a direct and effective approach to carbon removal. These technologies provide a tangible pathway towards achieving climate goals and safeguarding our planet for future generations. By raising awareness, garnering support, and investing in their development and implementation, we can harness the power of carbon removal alongside emissions reduction and renewable energy adoption. In embracing a comprehensive and integrated approach, we stand a better chance of mitigating the dire effects of climate change.

For expert guidance in planning and implementing carbon reduction and net zero strategies, visit our Net Zero Advisory page.