GNA: Gas power plants supporting Brazil’s energy transition and grid stability

Brazil’s energy transition is accelerating, driven by a growing share of renewable energy. As intermittency increases, flexible gas-fired power plants - based on advanced gas and steam turbine technology in a combined cycle power plant - play a critical role in ensuring grid stability and energy security while supporting sustainable growth.

Brazil’s expanding renewable energy capacity creates new challenges for grid reliability. Variability in wind, solar, and hydropower requires flexible, dispatchable generation to balance supply and demand.

Gas-fired power plants provide this flexibility. By delivering firm power when renewable output fluctuates, they stabilize the system and enable further expansion of clean energy sources.

At the Port of Açu in Rio de Janeiro, the GNA (Gás Natural Açu) complex was developed to meet this need - combining high-efficiency gas-fired power generation with the operational flexibility required for Brazil’s evolving energy system.

The GNA complex shows how gas-fired power plants can support renewable energy integration while ensuring grid stability and energy security.

By combining flexible generation, high efficiency, and future-ready design, GNA enables sustainable growth and strengthens Brazil’s path toward a resilient energy system.