Lotus, the former Renault-owned team, had financial problems last season and were the last to announce officially their engine supplier.
Renault are also supplying power units to champions Red Bull, sister team Toro Rosso and Malaysian-owned Caterham. Mercedes and Ferrari are the sport's other engine makers.
"Lotus F1 Team and Renault Sport F1 have enjoyed a successful partnership these past few years and we look forward to continue to build on our relationship and collaboration in 2014 and beyond," said Lotus chief executive Matthew Carter.
(Reporting by Alan Baldwin, editing by Sudipto Ganguly)
