Honda and Taisei: in-road wireless charging for EVs on the move. Highway tests from FY2027

Honda R&D, together with Taisei Corporation and Taisei Rotec, said on October 5, 2026 that it has developed the underlying technology for a wireless in-motion EV charging system using coils embedded in the road. Public-road demonstration testing is planned from Japanese fiscal year 2027 (starting April 1, 2027).

What was announced

The system is a magnetic-coupling WPT road system (wireless power transfer). Each partner owns a piece:

• Honda R&D — high-power-density transmitter/receiver units on DC distribution (GA in the road, VA on the vehicle);
• Taisei — the ground-side high-response DC power supply;
• Taisei Rotec — methods for embedding the hardware in pavement.

The aim spans passenger EVs through large commercial vehicles. Honda says it will push practical use first in logistics and transport, where fewer depot stops matter most.

Timeline

Stage	When
Test roadway at T-FIELD/TAMURA (Taisei)	from late 2026
Public-road demos	FY2027 (from April 2027)
Tateyama Project (NEXCO East) on the Tateyama Expressway, Chiba	from FY2027 onward

At Tamura, the three companies will run durability tests (about 1 million wheel-load equivalents), DWPT performance checks and electromagnetic-leakage measures. For heavy vehicles, they are targeting outputs of up to 150 kW.

How it works, briefly

GA (ground assembly) units sit in the pavement and transmit power; a VA unit on the vehicle picks it up wirelessly while driving. DC distribution links multiple GA units and, Honda says, simplifies wiring and installation on existing roads (mill and embed).

This is not a commercial network, and there is no price or rollout plan outside Japan yet. It is underlying tech plus a highway test plan from 2027.