If we are not more efficient, we put ourselves in a position where prices need to rise or profits deteriorate in a way that makes us less attractive to investors.

Fracking has been a real technological change that has caused great innovation in our business, and we've had the benefit of very low gas prices for our customers as a result of that.

Consumers appear to be weathering the steady rise in gas prices quite well,

There are no coal plants on the drawing board for Duke, which leaves us with gas, renewables, and nuclear.

I don't see a sea change by 2020, but I see migration in the direction of modernization and more flexibility in the generating system going forward.

An investor in Duke Energy is expecting a dividend payment. That's roughly 70 to 75 percent of the earnings I produce. The business that goes with that level of dividend is a business that has more predictability, more stability.