What does "LCOE" stand for?

Levelized cost of electricity. All the costs that go into producing from a given source (capex and opex) divided by the total power generated.

> All the costs that go into producing from a given source (capex and opex) divided by the total power generated

... total energy generated.

Good catch! One of my own biggest pet peeves too

Perhaps Low Cost Of Electricity?

I'm not asking for guesses thank you (especially if they turn out to be incorrect).

Your sibling comment is right. It stands for Levelized Cost Of Electricity.