The correct response is:
It is the minimum price per kWh at which electricity must be sold in order to break even over the lifetime of a power-generating project.
The Levelized Cost of Energy (LCOE) represents the average cost per unit of electricity generated (usually expressed in dollars per kilowatt-hour, or $/kWh) over the life of a project, accounting for initial capital costs, operations and maintenance costs, and the expected output of the project.