Started playing on another PC when this first came out, took what seemed like forever just to get to area 3 (about a week). Started a new game on my PC, using what I learned before. About 5 days later, just got to area 3 (Region), using Nuclear Cells on the Island.
Tips for beginners. The start of the game is about spamming Wind. When you get Solar and Generators, upgrade Generators before upgrading Solar. As you get the better heat sources, keep upgrading Generators. 4 Generator 2's at level 47 can surround a level 0 Nuclear Cell without any explosions, at level 49, you can use 3.
Upgrade generators, place offices, fill in empty spots with research, walk away (figuratively or literally), and come back later. If in doubt, open up an empty text document, save the game, and if things go wrong, you lose 10 seconds reloading the game.
To Baldurans, this is a really cool game. Good job.