I spoke with someone who was actually working there, and he said the same.

Their (Tesla's) engineering team is best in class and consists of the smartest people I've ever worked with. They have an uncanny ability to figure things out, often driven by Elon's specifications or upcoming features.

In your title, you also mention solar microgrids. How does that relate to the Megapack?

Tesla's development of their proprietary microgrid controller played a significant role in this. If you look at the market, there are custom ones available from companies like Siemens or Schneider, but they require a whole team on site and can cost around $500,000. For most projects, that's not economically viable. Tesla, however, managed to develop one starting at around $20,000, going up to $50,000 for more complex ones.

How has Tesla changed over the seven years you were there?

Tesla continues to focus on driving down manufacturing costs, mainly through efficiency, which also applies to construction.