On: Solar Surpasses Gas and Wind as Biggest Source of ...

[mikeash]

That doesn’t seem to account for the two factors I mentioned, although I certainly wouldn’t expect them to make up that difference.

[18pfsmt → mikeash]

I haven't read the NREL report, but my father was involved with them for 10 years as an investor. For utility scale, they can use thin-film panels which are more efficient, but more costly upfront (FirstSolar is the big player).