Sadly LCOE is a very bad metric when looking at intermittent and non dispatchable generation sources in a power grid. Especially so as they approach a meaningful fraction of total generation. The market goal of power generation after all is not to produce as much kWh as possible but to satisfy demand at a specific time. System level LCOE which take dispatch into account are a better way of looking at power generation costs.
Here is a pretty good paper on the topic, albeit a bit older so some parameters might have changed slightly.