Renault has unveiled its 2014 turbocharged Formula 1 engine at the Paris airshow.
The firm has named it the Energy F1, as it is Renault's first design for the sport's new turbocharged, energy-recovery technology era.
Four-time world champion turned Renault ambassador Alain Prost said: "From 2014 we will bring engines to the fore and redress the balance in F1. An engine is the heart of a car, from next year it returns to the heart of our sport."
Renault already has a deal in place to continue supplying its title-winning works partner Red Bull next year, as well as adding RBR's sister team Toro Rosso, which has so far used Ferrari power.
The French firm will continue to power Caterham, with which it has partnered for road car projects.
Williams is parting company with Renault to run Mercedes engines, and current Renault squad Lotus's 2014 power unit plans have yet to be announced.
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