The FIA has carefully analyzed the technical regulations for Formula 1 in 2026, offering teams the ability to manage as efficiently as possible the energy recovered by the MGU-K motor generator. The so-called “burn for charge” mode, supported by the internal combustion engine, will help prevent peaks of energy loss while ensuring that the cars continue to operate optimally throughout every lap of the race.
F1 2026: sudden energy loss should not be such a big problem
The rules for the upcoming season set a maximum battery capacity of 4 MJ. This refers to what in technical jargon is called the “delta state of charge,” meaning the storage capability of the battery. While it is not a massive value, it must be considered that the electric component will be able to deliver up to 350 kW, adding significant weight to the overall propulsion system of the cars competing in the 2026 World Championship.
For this reason, using the battery’s contribution on all straights, it is thought that the total output of the MGU-K could be depleted within a few seconds. This scenario would create a chronic “clipping” effect, resulting in a sharp reduction of electric power. Obviously, this is something teams cannot afford under any circumstances. In previous seasons, Max Verstappen commented on similar situations quite decisively.
“Full throttle on the Monza straight and then, 400 or 500 meters before braking, being forced to downshift—I don’t think that’s the correct approach to take.”
Max was referring specifically to extreme clipping. In this scenario, losing the electric contribution would reduce overall propulsion, preventing the car from using much of its available horsepower. A similar phenomenon has often been observed at Spa-Francorchamps in the recent past.
Teams struggled to distribute electric support evenly throughout the lap, and by the end of some straights, the hybrid system would fall short. Nevertheless, from the 2026 season onward, the role of engineers managing the software will become absolutely crucial. Each team will have a dedicated expert at the pit wall focusing exclusively on energy recovery management.
For this reason, Max Verstappen’s concerns are expected to decrease. Additionally, the FIA has developed a “ramp down” system, managed by the engine control units, ensuring that the latest-generation power units never cease to deliver electric energy instantaneously. This is precisely to avoid sudden drops in performance that could unfairly disadvantage certain cars compared to others.
F1 2026: FIA measures to maintain a constant energy supply
As we know, the new regulations impose that electric power gradually decreases above 290 km/h, reaching zero at 355 km/h. This makes the loss of thrust less abrupt and more manageable. At the same time, it appears that energy recovery should not be particularly difficult. In fact, simple calculations show that a few seconds of full braking would be sufficient to recharge the entire battery pack.
However, the 2026 cars will have extremely high braking efficiency, meaning that on most circuits, speeds will remain below the threshold value. Therefore, energy will need to be recovered at other points of the track, because during a race, it will not be possible to perform a dedicated “out lap” just to charge the battery. Single braking events alone will not be sufficient. This is precisely why, as anticipated last September, the so-called “burn for charge” mode will come into play.
In short, the internal combustion engine will be required to work harder than usual, enabling the 2026 F1 cars to recover energy even while cornering. This will naturally lead to higher fuel consumption, and engineers will need to find an ideal balance through careful compromises. From this perspective, the work carried out by engine developers to maximize efficiency will be extremely important.
Power units that are inherently more effective in energy recovery and storage will automatically benefit. There is considerable discussion about Mercedes, who are seen as favored in this regard by many experts. At the same time, Ferrari believes it has given its power unit competitive characteristics that can also deliver winning performance. Ultimately, we will have to wait and see how these systems perform on track.
Leave a Reply