[Repost Q] Need help understanding this code on power consumption prediction using LSTM

Not OP. This question is being reposted to preserve technical content removed from elsewhere. Feel free to add your own answers/discussion.

Original question: Hello everyone!! I am a final year undergrad(electrical engineering) student who just dabbled in machine learning. During our 1 month training period, I chose to do a course in ML/AI and am now seeking to build a project, mainly on electrical energy consumption prediction. I came across this cool code/project(in the link), but cannot understand a word of it ;( Please if anyone of you could spare me some time and explain this code to me..I'll be grateful to you.

What project do you consider good for a beginner, that I can easily explain to others too?? Do you have any ideas?