The study, which will commence in January 2022 and run for up to two years, will seek to explore alternative energy and power solutions, including low carbon and zero-emission technologies, and their application for aircraft.
The research will include analysis of wider elements of the aviation energy and operational ecosystem, including fuel production, transportation, storage and handling.
The airline and engine manufacturer are working together to further develop knowledge of these topics in relation to both electrical and hydrogen-based power systems.
David Morgan, director of flight operations for easyJet, said the airline remains "absolutely committed" to sustainable flying and zero-emissions.
"We know that technology is a key driver to achieve our decarbonisation targets," he added.
"Disruptive technologies such as electric and hydrogen propulsion show great potential for short-haul airlines like easyJet and we look forward to collaborating with Rolls-Royce to support bringing this technology to maturity as early as possible."
