I would like to follow up on some of the questions Ms. Day had.
Mr. Bettencourt, I'd like you to talk about—and I'm going to use the word carefully here—the delicacy of these systems. We've had questions, and we actually did a study on integrated energy systems, and smart grids were part of that. But as these systems become more complicated, they seem to become more delicate, or they have a tendency...if one thing goes wrong, an entire system is impacted.
It's as simple as something at my home. I had a generator in the past and it was a case of flipping a switch, turning the generator on, and I had power again. I have a new system there now that relies on a 400-amp switch and a generator relying on a 9-volt battery that has to be charged in order for that entire system to work.
I just wonder if you'd speak to that issue a little bit.