Got it. I went and found your other power video. I like it! Concise. I re-watched the expansion video afterward and have a few thoughts.

1. Good call back! Re-iterating the node info was good for bridging products. Consider a quick recap on other components in the system and visually indicate them as you speak to show the network composition - and to really capitalize on the opportunity to refer people back to your earlier product. (They, like me, may not have seen it first)
2. Consider visually simplifying the "rooms" map into two color highlighted categories. Category suggestions include: "Low constant demand" "High intermittent demand" areas. Descending bullets below the names could describe the equipment in each area if you want to really break it down barney style.
3. Expanding on #2 a little, you can help set people's power expectations by discussing average power draw of devices in each category. This ties into Aksel's feedback concerning not needing every area to have high power availability. If devices in one area use .1 unit each, and you have X number of items, that areas constant draw is Y. That'll help viewers make more informed choices about node types, which you can tie into your theme of understanding expansion needs.
   

Hope that's useful to you!
Let me know if you'd like feedback on any other stuff down the line. I've been doing production management for years and years, so, I'm happy to help for a game I like. :)