Overload by Arthur Hailey

Overload introduces the high-tech, high-tension environment of the power industry. Nim Goldman is the vice president of Golden State Power and Light, a giant corporation that supplies electricity to the power-hungry state of California.

Nim is a big man with a big job and all the women he can handle, but he knows the crunch is coming. Soon, very soon, power famine will strike the most advanced society the world has ever known.