I'm hooked on the story, for sure.
I do wish it wasn't trying to melt my PC. I don't know what kind of optimization is possible with the code, but if it could be made less demanding for weaker machines, I (and my weak machine) would appreciate that.
I'd appreciate more information about how the upgrades are working, too. Total production for a node, and then on mouse-over (or something), a rundown of which upgrades are reducing the drain on it / boosting its production from base. A similar breakdown for the amount of light I'm going to get from Convergence.