A recent Danish research[1] found that the cheapest energy mix (that includes system costs like energy storage) right now for them is offshore wind power (66%), natural gas CCGT (26%), and solar PV (8%). Solar panels are cheap, but their system cost is the highest.

[1] https://www.sciencedirect.com/science/article/pii/S036054422...

I presume that this paper assumes some form of stable costs for natural gas... what happens when that stability is soundly invalidated?