Balancing the east coast grid is sometimes hard. Its weak, badly in need of capital investment and somewhat mired in inter-state/federal madness.
Personally, I think privatizing the utility function was insane.
There are some cool things which emerged after the 1970s grounded capital investment: High Voltage DC is very cool. Avoids some of the issues of phase and load mis-alignment between regions, generation models.
Arguments for a different kind of net exist. More local resiliency. More load shedding, more respect for home solar and batteries, as well as storage in the network.