Excellent quality and composition. I love the idea behind the mechanical and electrical bits in the music, it works really well here. The soundtrack does a great job with keeping things light and airy early on, slowly leading into the feelings of stress that Engie is feeling around her father and the power. The pay-off for this in "The Power Grid" is top notch -- I mean, (if it were me) the crescendo of this song would have been the PERFECT time to bring in some killer drums and electric guitar to really nail things down, but I forgive you for not being me ahaha.
If I had one ACTUAL critique, part of me feels like "I'll See You Soon" could have benefited from some more instruments. I can respect the decision to leave things with just the guitar, but even a little piano accompaniment or something else simple would have helped deliver a little more emotion into the ending.
Either way - a complete, cohesive soundtrack with a compelling narrative and excellent music. A+ entry, great job!