F1 2026 Power Unit Guide: Engines, Energy, and the New Era of Overtaking
The 2026 F1 technical reset is here. From the 350kW hybrid leap and the end of the MGU-H to the debut of Overtake Mode and 100% sustainable fuels, here is everything you need to know about the new power units.
Twelve years is a remarkable run for a set of engine regulations. Since their debut in 2014, Formula 1’s first genuine generation of hybrid power units took the sport to unprecedented levels of efficiency and speed. But as we enter 2026, that era has officially come to a close. A new generation of power units has arrived to redefine the pinnacle of motorsport.
The 2026 changes are designed to ensure closer wheel-to-wheel racing while making the technology simpler and more road-relevant. With the hybrid element becoming more significant and the switch to 100% sustainable fuels, there is a new vocabulary to master. Here is your definitive Q&A on the runners, riders, and rules for 2026 and beyond.
Who are the F1 2026 Power Unit Manufacturers?
The 2026 regulations have successfully attracted a wealth of manufacturer talent. There are now five distinct power unit suppliers on the grid:
- Mercedes: Supplying their works team, Williams, Alpine, and the reigning champions McLaren.
- Ferrari: Powering the Scuderia, Haas, and the new American entrant Cadillac.
- Red Bull Ford: A landmark collaboration powering Oracle Red Bull Racing and Racing Bulls.
- Honda: Returning as a full works manufacturer with Aston Martin Aramco.
- Audi: Making their historic F1 debut with a bespoke power unit for the Audi F1 Team.
What is the difference between a "Power Unit" and an "Engine"?
While you can still call it an engine, the term Power Unit (PU) describes the entire integrated system. The 2026 PU consists of the Internal Combustion Engine (ICE), the Turbocharger (TC), the Energy Store (ES), the Control Electronics (CE), and the Motor-Generator Unit (MGU-K).
What happened to the MGU-H?
The MGU-H (Heat) has been deleted for 2026. While technically impressive, it was complex and lacked road-car relevance. To compensate, F1 has massively upgraded the MGU-K (Kinetic). The electrical power has jumped from 120kW to 350kW, meaning the hybrid system now provides nearly 50% of the car's total power.
What is the new "Boost Button" in F1 2026?
Formerly known as various energy deployment modes, the Boost Button is a driver-operated function. It allows a driver to deploy maximum electrical energy at any point on the track to either attack a rival or defend a position, provided they have enough charge in the battery.
How does "Overtake Mode" replace DRS?
Overtake Mode is the new primary performance aid. Unlike the old DRS, it is a power-based advantage rather than an aerodynamic one. It can only be activated if a driver is within one second of the car ahead at the detection point.
Overtake Mode allows the chasing driver to sustain 350kW of electrical power all the way to 337 km/h, while the lead car's power begins to "taper off" at 290 km/h.
Understanding "Recharge" and Energy Harvesting
Energy management is the defining skill of 2026. Drivers harvest energy to charge their battery (Recharge) through braking, part-throttle application, and "lift and coast." While much of this is automated by the ECU, drivers can manually override settings to prioritse energy recovery—though doing so will automatically disable Active Aero (Straight Mode) to increase drag and aid deceleration.
Is F1 using 100% Sustainable Fuel?
Yes. As part of F1's Net Zero 2030 goal, every car runs on advanced sustainable fuels. These are derived from carbon capture and non-food biomass, providing the same high-octane performance with a significantly lower environmental footprint.
Master the 2026 Strategy with GridPlay
With the new Overtake Mode speed deltas and the arrival of Audi and Ford, predicting race outcomes has never been more challenging. On GridPlay, we track these technical nuances so you can dominate your private leagues. Will the Mercedes engine loophole give McLaren the edge, or will Ferrari's electrical efficiency see Hamilton take P1?
The new era has begun. Head over to the GridPlay Dashboard to lock in your predictions for the Australian Grand Prix and see if you can land a Perfect Prediction (25 pts).