 Like Greg has said before, when you've got these units that are old, your power bill will just steadily increase and increase. You're like, I'm doing everything I can do. What could the problem be? Well, you've got a 35-year-old unit outside. Right. Or maybe you're just looking to get by this summer. You need a checkup of that HVAC system. Do not let it crap out on you in the middle of an Alabama summer. And, of course, with storms rolling through, the summer storms that are bound to be rolling through, some folks really want to keep the power on. It's a good idea. Sometimes it's very important, especially if you've got medical devices.