Tony Seba is a futurist and a Stanford lecturer on Disruption. In the context of the term Grid Parity, he defines GOD PARITY as when local small scale solar+storage (microgrid) energy is cheaper than maintaining the grid. Here are two of his talks. The second one is the updated version of the first. They are rather long ~55 mins each. If you have limited time then I recommend you watch the parts that I highlight.

Clean Disruption – Why Energy & Transportation will be Obsolete by 2030 (2016 version)

If 53 minutes is too long, you might want to watch minutes 43-53. If 10 minutes is still too long then minutes 46-50. GOD PARITY explained at 48:35. Also, if you have an extra 5 minutes, the first 0-5 minutes is cute.

CleanDisruption and the Collapse of the Oil, Coal & ICEV Industries (2020 version)

Batteries minutes 15-19, EVs minutes 19-32, Autonomous Driving minutes 32-44, Solar + Storage minutes 49-55.