 So let's look in a little bit more detail about how we meet that changing demand. So let's just pick, again, let's pick a particular day. And so here's our base load and we have an increase in electricity use. People are getting up, turning on coffee makers, making breakfast, turning on lights, having showers, using hot water, going to offices, turning on electricity. It reaches a peak, they've gone home, they've turned on more appliances, they're cooking, and there is a decline. And then it starts up the next day again. So it might look something like that. If we're in somewhere interesting like California, because they've got so many solar, you might see actually reduction in demand right there, just at the peak of wherever noon is, as all the rooftop solar are maximizing their electricity production and there isn't as much demand. But let's just ignore that. So what do we use the base load? Well, for our base load, we want to use the cheapest electricity. And so here, in the old days, that would be very much a combination of coal, nuclear, and hydro. Now, we're limited in how much hydro we have in many locations. We're limited in how many nuclear power plants we have. And so we had a very more flexibility in the number of coal-fired power plants that are producing electricity. And so how do we meet this changing demand? Well, I don't want my nuclear power plant going up and down. It's not designed to do that. Hydro can certainly do that. But if we have a lot of hydro, we want to be using that hydro. And coal doesn't like to go up or down either. And so we have a large number of plants operating. And so over some of these systems that cover multiple states, there might be 50, 60. So this is the large coal-fired power plants that are running. And they make start-off at 60% of their output and increase a little bit more. And we might add a little bit more hydro coming into the system. And so there is a system by which, when it was regulated, we would control how we were meeting this electricity demand. And at the peak, we were paying much more for that electricity generation. And so, again, in the old regulated days, this would have been natural gas, because it was expensive. But we would turn on more power plants, more power plants. We would have the cheapest running, the longest time and running at the higher capacity. And then we would turn more and more and more on. Coal doesn't like to be turned on and off. And so we'd use smaller and smaller natural gas peaking units and we'd add more into the system. And so this was how we did things under the regulated. And so even though when you pay for electricity, you had a standard cost, you can see that per kilowatt hour, you can see that we have a variable cost going through the day. So it was decided that we might be able to do better by going to a deregulated system. And so now, and in the change that we've seen if we take the same system, we have still our same base load. But now things have changed price-wise. So now we have significant contribution from wind as well as hydro. And that is growing, and we're likely to see solar come in. And solar, of course, is going to be coming in in a particular contribution. It's not going to be running at midnight unless we have stored thermal solar, which we just seen with some of the concentrated powers. We have nuclear still in the game. And that's producing as much electricity as these sort of two pieces are combined. Solar is not yet contributing very much in Pennsylvania to our total electricity supply, but there are locations in the world where it's much higher. And there are places in the United States where it's much higher and it's expended to grow. We are still running coal. We are still adding in other pieces, but we have natural gas. And natural gas right now is very cheap. And so that went up dramatically, primarily at the reduction of coal. And so now, as I'm writing this, it's about 30-something percent in each case. And so still heavy on the fossil fuels, but again, we're turning on the systems, but we no longer are able to just keep on turning more and more expensive units on because we have renewable portfolio standards. And so now we have our wind and our hydro, which are now, again, quite cheap, contributing to our base load. There's intimacy in the wind and in the solar. And so that's problematic. Again, I don't want to cycle my coal plants up and down. I don't want to cycle my natural gas plants up and down. And so we have an energy policy that was designed for this system that's transitioning into this system where we're competitively bidding in. And we need a system that's going to be reliant. So here, everybody got paid. The regulated system, where this is deregulated. If the system had a coal plant that wasn't used, everybody still got paid. It would have been used when needed. Here, we're all bidding in. When prices go up and down, then we have this system where we're shaking very cheap, where we're required to take some of our renewables and we're requiring much more cycling up and down in these locations. And again, we don't deal with nuclear. Nuclear is running a little bit harder. But every time the wind drops, then these other plants have to come in. Natural gas is very much that workhorse from being able to meet this changing demand. But there are limits on how much we have. And so the advantage of this is that overall, our electricity price is cheaper than we paid over in this system. The advantage of this system is the level of control. We have the ability to make decisions over the long term and know what's going to happen ahead of time with our emissions and our prices. But the policy side of this has yet to catch up. And of course, the disturbing pieces that have changed things is very much changing price of wind and also the changing price of solar. Anyway, those are the challenges that we face. More in the lessons.