Limited Role of Carbon Capture in the Future of Energy
The landscape of energy economics is rapidly evolving, and the latest insights from the Institute for Energy Economics and Financial Analysis (IEEFA) underscore a notable shift in the role of Carbon Capture, Utilization, and Storage (CCUS). According to the International Energy Agency’s (IEA) recently published World Energy Outlook 2025, CCUS is projected to contribute a mere fraction—less than 5%—to the decarbonization efforts needed to combat climate change by 2050.
A Decline in CCUS Prominence
As Grant Hauber from IEEFA observes, this forecast represents a significant downgrading of CCUS technology’s potential over the years. Historically, media coverage, academic studies, and industry narratives have commonly heralded CCUS as crucial for reducing carbon emissions, especially in sectors that are challenging to decarbonize, often referred to as “hard-to-abate” sectors. In 2020, the IEA even portrayed CCUS as a linchpin for reaching climate goals. However, the World Energy Outlook 2025 indicates a stark reality: the technology is mentioned but lacks visibility in critical metrics.
Notably, while CCUS may play a role in the energy mix, it’s overshadowed by renewable sources, electrification, fuel switching, and energy efficiency—all expected to yield over 82% of the required emissions reductions. In stark contrast, CCUS is projected to contribute no more than 4.9%, split between 1.2% from power generation and 3.7% from industrial applications.
Understanding the Cost Challenges
The declining forecast for CCUS is intricately linked to the rapid expansion and decreasing costs associated with renewable energy. The IEEFA points out that around 793 gigawatts of new renewable capacity is anticipated to come online in 2025, largely fueled by growth in China. This shift compels policymakers and investors to reconsider where they allocate resources in the battle against climate change.
High investment and operating costs associated with CCUS remain significant barriers. Proponents of CCUS argue that a stable and supportive policy environment—backed by subsidies or tax credits—is essential to mitigate these financial challenges. Expenses encompass everything from capture equipment and CO2 transportation to the final, permanent storage of carbon underground. Such costs vary significantly based on emission sources, distance to disposal, geological conditions, and local economic factors, making them substantial hurdles for widespread implementation.
Economic Viability of CCUS
Recent estimates from the European Union reveal that the total cost of disposing of a tonne of CO2 ranges between €105 and €280. This economic backdrop poses critical questions about the viability of CCUS on a large scale. As recognized by the IEEFA, the successful deployment of CCUS hinges on sustained subsidies or high carbon taxes, yet many projects have faced delays, cancellations, or failure to launch, primarily due to unfavorable economic conditions.
The findings underscore a changing narrative in climate strategy; while CCUS technology has been heavily promoted as a vital solution, developments in renewable energy and other decarbonization pathways are increasingly taking the spotlight. This shift prompts a reevaluation of how resources and efforts can be effectively mobilized to combat climate change in an economically feasible manner.
By examining the shifting roles and costs associated with CCUS against the backdrop of emerging renewable energy technologies, we can better understand the evolving strategies in the global decarbonization journey.