The synergy between natural gas and biomethane is driving decarbonization in Brazil, leveraging existing infrastructure for a more sustainable future and overcoming false dilemmas.
The global energy transition often sparks discussions about replacing energy sources, creating the false impression that innovations must necessarily eliminate established ones. However, the sector’s history and reality point to a more effective path: integrating new alternatives into the existing matrix. This model strengthens energy security and allows for the maturation and expansion of new fuels in the market.
In Brazil, this perspective is vital for understanding the relationship between natural gas and biomethane. Far from being competitors, these two energy sources act in complementarity, forming a strategic partnership. The similar molecular structure of methane (CH₄) between them facilitates the integration of infrastructure, technologies, and equipment, accelerating decarbonization and promoting economies of scale and competitiveness.
Biomethane’s Growing Potential
The current scenario for biomethane in Brazil reflects growing maturity, with discussions focused on how to effectively connect supply and demand. The country already has 21 biomethane plants authorized by the ANP (National Agency of Petroleum, Natural Gas, and Biofuels), nine of which are located in São Paulo. These facilities have an installed capacity of approximately 1.33 million Nm³/day.
Projections indicate significant progress by 2025, with national production estimated at 1.06 million cubic meters per day, a growth of about 75% compared to the 606.6 thousand cubic meters per day in 2024. Additionally, 48 new projects are undergoing authorization, signaling the sector’s robustness.
Natural Gas Infrastructure as a Driver
Brazil’s vast natural gas infrastructure presents an unprecedented opportunity for biomethane. With over 47,000 kilometers of piped gas distribution networks, the country has a system capable of promoting the injection, distribution, and utilization of biomethane in various regions and markets where the renewable molecule might face access or competitiveness challenges.
Beyond physical networks, the expansion of biomethane in a continent-sized country also involves the adoption of off-grid solutions. These are essential for connecting production facilities of different scales and consumption profiles, overcoming geographical and logistical barriers.
The Free Market and Demand for Sustainability
The maturation of the free gas market is another crucial factor for integration. In São Paulo, for instance, the migration of large and medium-sized industries to this environment has become a reality. Driven by the pursuit of contractual flexibility, greater competitiveness, and better supply management, these companies find in biomethane an immediate and tailored solution for their decarbonization goals. The renewable molecule can be easily incorporated into supply portfolios, meeting diverse consumption profiles.
Regulatory Mechanisms and Certification
To solidify this structure, certification and traceability mechanisms are fundamental. The CGOB (Biomethane Certificate of Origin Guarantee), established by the Future Fuels Law and regulated by the ANP, represents a significant advancement. It creates the regulatory basis for identifying, tracking, and valuing the environmental attribute of biomethane, expanding its applications in regulated and voluntary markets.
The integration between biomethane and natural gas is not merely an opportunity, but a strategic necessity for Brazil’s energy transition, combining economies of scale with effective decarbonization.
Environmental Impact and Practical Applications
The partnership between biomethane and natural gas is already manifesting in concrete actions. Major companies, including multinationals, are contracting biomethane to reduce the emissions from their industrial operations, incorporating it into commercial products. This demonstrates that the demand for lower-carbon energy is an immediate strategic priority.
The environmental benefits are notable. A comparative LCA (Life Cycle Assessment) study conducted by ACV Brasil with heavy-duty vehicles in the Southeast region revealed that using pure biomethane can reduce GHG (Greenhouse Gas) emissions by 87% compared to diesel. A blend of 50% biomethane and 50% natural gas still provides a 56% reduction in emissions, highlighting the versatility and opportunities for different consumers.
The heavy transport sector, such as urban buses and long-haul trucks, represents another promising frontier. Replacing diesel with this integrated solution offers gains not only in GHG reduction but also in improving air quality. International experiences and the already established natural gas market in Brazil reinforce the significant potential.
Moving Forward Together Towards Sustainability
Insisting on the idea of competition between natural gas and biomethane distracts from the real challenges of Brazil’s energy transition. The most logical path is collaboration: the natural gas market offers biomethane infrastructure, scale, logistics, and a vast pool of consumers, while biomethane provides natural gas with an immediate and progressive route to reduce its carbon intensity.
Robust physical networks, innovative off-grid solutions, a dynamic free gas market, and reliable certification mechanisms are complementary pillars of this equation. With legal certainty, regulatory stability, economic rationality, and consumer choice, natural gas and biomethane will not only coexist but thrive together, expanding options for safer, more competitive, and efficient energy solutions, consolidating Brazil as a leader in clean and sustainable energy.
