No, I had no graph in mind. But thanks for the info anyway. I just know from watching the wind turbines while trucking near them, that simply feathering the prop blades shuts one down in a couple of minutes.
As one that was raised on a nw IL farm, and farmed until 47 yrs old, the area 30 miles east (Henry Co.) just doesn’t fit the view I would want to see everyday: wind tubines.
There was talk of more coming to the west (southern Mercer Co., where I lived). I wasn’t thrilled to hear that. But now in the wooded hills of SE Lewis Co TN, I’m not worried about my view being ruined any more.
I was thinking of the means of throttling power output, until your post, I hadn’t given it much thought in life, and became curious. That seemed to explain it.
I live near a large man made reservoir carved into the top of a mountain. During the night, when energy is cheaper and more available, they pump water into the reservoir to fill it.
During the day, when more energy is needed, they drain the reservoir and generate hydroelectric power as it drains.
Interesting that someone figured that would make money.