F1 2026 Tech: Why Reduced ICE Power Misses the Mark

Formula 1 will undergo a significant power unit overhaul in 2026, shifting the balance between internal combustion engine (ICE) and electric power. The changes, designed to attract new manufacturers and increase sustainability, will see electric power output triple, whereas ICE power is reduced.

Currently, in 2024, the power split between ICE and electric systems is 80/20. By 2026, this will shift to approximately 53/47, according to technical analyses of the new regulations. The Electric Recovery System (ERS) output will jump from 120 kW to 350 kW – a 292% increase. Simultaneously, ICE output will decrease from 550-560 kW to 400 kW, representing a 27% reduction.

A key alteration is the removal of the Motor Generator Unit – Heat (MGU-H) from the power unit. This component recovers energy from exhaust gases and helps reduce turbo lag. Its removal simplifies the system and, according to some reports, will result in a louder engine sound, a feature welcomed by fans. The focus will now be entirely on the Motor Generator Unit – Kinetic (MGU-K) for energy recovery, and deployment.

Five power unit manufacturers are confirmed for the 2026 season: Mercedes, Ferrari, and three others. Mercedes will supply its works team, Williams, Alpine, and McLaren. Ferrari will power its own team, Haas, and new entrant Cadillac. This represents a success in the regulations’ initial goal of attracting more engine builders to the sport.

The 2026 power units will also mandate the use of fully sustainable fuels. These changes are intended to not only enhance performance and racing spectacle but also to align Formula 1 with broader environmental goals. Aerodynamic changes accompanying the new power units will see a 55% reduction in drag and a 30% decrease in downforce.

The shift in power dynamics is expected to influence race strategies, with faster acceleration and extended periods of electric power deployment becoming commonplace. The removal of the MGU-H will require teams to manage turbocharger performance through engine management and hybrid systems, potentially leading to more dramatic engine sounds during cornering and deceleration.