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power electrical, but you don't, there's nothing that has to be opened, right? So that's a way to preserve the dam. The problem with spillways is they're typically not utilized very often, and depending on the amount of water in the torrent and the way the spillway was built, all this water coming down the spillway can actually remove the substrate, whether it's concrete or rock or however it's built, and the water can actually begin to erode under the dam. This is happened in the past with a number of other dams, there was one in California that had a catastrophic, a near catastrophic failure because of the spillway, basically washed away a huge part of the embankment around the dam. So this is a problem, right? So spillways are good, but because spillways are often untested and they sit unused for many years, they can degrade over time, and then when they're used, the amount of water that's coming down the spillway so intense it can actually damage the structure when that happens, you can actually that