I attended the 3rd MIT Energy Night yesterday. Great event, well organized, and one could literally feel the passion that the students displayed in putting it together. I consider myself fortunate to be invited.
Some interesting high level features:
Total Capacity: 1000 GW
Total Generation: 4×10^12 kWe-hr
Total CO2 emissions:2.5 gigtons (metric)
Link here: electricityus.pdf