FIA Agrees to Rebalance Power Unit Regulations for 2027: ICE Power Up, ERS Down

The FIA has confirmed a unanimous agreement to rebalance the F1 power unit regulations for 2027, shifting the ratio between internal combustion and electrical energy. The change will see a nominal increase of ~50kW in ICE power alongside a fuel-flow increase, with a corresponding ~50kW reduction in ERS deployment power.

Why it matters:

This rebalancing addresses early-season concerns about the overwhelming reliance on electrical energy under the 2026 regulations. By giving more prominence to the combustion engine, the sport aims to improve raceability and reduce the complexity of energy management for drivers, while maintaining the push for hybrid efficiency.

The details:

• The agreement was reached at an online meeting today involving the FIA, FOM, team principals, and power unit manufacturers.
• Miami test: Modifications deployed at the 2026 Miami Grand Prix — designed to improve safety and reduce excessive harvesting — were deemed a success, with no safety issues reported and improved competition.
• 2027 package: ICE power increase of ~50kW with higher fuel flow; ERS deployment reduced by ~50kW.
• Further refinements: Additional start-safety and wet-weather improvements are being evaluated for upcoming races, with better visual signaling expected by the Canadian Grand Prix.
• The final technical details will be refined by working groups before a World Motor Sport Council e-vote.

What's next:

The FIA will present the refined package for formal approval once power unit manufacturers have voted on the proposal. The changes are expected to be fully implemented for the 2027 season, with further adjustments possibly introduced earlier if deemed beneficial for safety and competition.